The isl1208_id[].driver_data could store a pointer to the config,
like for DT-based matching, making I2C and DT-based matching
more similar.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230623140948.384762-8-biju.das.jz@bp.renesas.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The Allwinner sun6i RTC clock implements a mux with a set_parent hook,
but doesn't provide a determine_rate implementation.
This is a bit odd, since set_parent() is there to, as its name implies,
change the parent of a clock. However, the most likely candidates to
trigger that parent change are either the assigned-clock-parents device
tree property or a call to clk_set_rate(), with determine_rate()
figuring out which parent is the best suited for a given rate.
The other trigger would be a call to clk_set_parent(), but it's far less
used, and it doesn't look like there's any obvious user for that clock.
Similarly, it doesn't look like the device tree using that clock driver
uses any of the assigned-clock properties on that clock.
So, the set_parent hook is effectively unused, possibly because of an
oversight. However, it could also be an explicit decision by the
original author to avoid any reparenting but through an explicit call to
clk_set_parent().
The latter case would be equivalent to setting the determine_rate
implementation to clk_hw_determine_rate_no_reparent(). Indeed, if no
determine_rate implementation is provided, clk_round_rate() (through
clk_core_round_rate_nolock()) will call itself on the parent if
CLK_SET_RATE_PARENT is set, and will not change the clock rate
otherwise.
And if it was an oversight, then we are at least explicit about our
behavior now and it can be further refined down the line.
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Samuel Holland <samuel@sholland.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rtc@vger.kernel.org
Cc: linux-sunxi@lists.linux.dev
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20221018-clk-range-checks-fixes-v4-45-971d5077e7d2@cerno.tech
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
There is no more needs to use a dedicated wake up interrupt for RTC as
EXTI block manages by itself now all interrupt lines.
Dedicated wakeup interrupt has been introduced with STM32 MP1 support
commit b72252b658 ("rtc: stm32: add stm32mp1 rtc support") because GIC &
EXTI interrupts were not yet linked in EXTI driver.
Removing this interrupt won't break compatibility with device trees which
do use two interrupts entries: it could only prevent wakeup from low power
modes on STM32MP1x, but platform power management is not yet available.
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20230531122732.1515594-1-amelie.delaunay@foss.st.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
not being declared. We thus need to add HAS_IOPORT as dependency for
those drivers using them.
Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Acked-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://lore.kernel.org/r/20230522105049.1467313-31-schnelle@linux.ibm.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
After commit b8a1a4cd5a ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230505121136.1185653-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Split rk808 into a core and an i2c part in preparation for
SPI support.
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> # for RTC
Tested-by: Diederik de Haas <didi.debian@cknow.org> # Rock64, Quartz64 Model A + B
Tested-by: Vincent Legoll <vincent.legoll@gmail.com> # Pine64 QuartzPro64
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230504173618.142075-6-sebastian.reichel@collabora.com
Signed-off-by: Lee Jones <lee@kernel.org>
- Add support for Renesas RZ/G2L MTU3
- New Device Support
- Add support for Lenovo Yoga Book X90F to Intel CHT WC
- Add support for MAX5970 and MAX5978 to Simple MFD (I2C)
- Add support for Meteor Lake PCH-S LPSS PCI to Intel LPSS PCI
- Add support for AXP15060 PMIC to X-Powers PMIC collection
- Remove Device Support
- Remove support for Samsung 5M8751 and S5M8763 PMIC devices
- New Functionality
- Convert deprecated QCOM IRQ Chip to config registers
- Add support for 32-bit address spaces to Renesas SMUs
- Fix-ups
- Make use of APIs / MACROs designed to simplify and demystify
- Add / improve Device Tree bindings
- Memory saving struct layout optimisations
- Remove old / deprecated functionality
- Factor out unassigned register addresses from ranges
- Trivial: Spelling fixes, renames and coding style fixes
- Rid 'defined but not used' warnings
- Remove ineffective casts and pointer stubs
- Bug Fixes
- Fix incorrectly non-inverted mask/unmask IRQs on QCOM platforms
- Remove MODULE_*() helpers from non-tristate drivers
- Do not attempt to use out-of-range memory addresses associated with io_base
- Provide missing export helpers
- Fix remap bulk read optimisation fallout
- Fix memory leak issues in error paths
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Merge tag 'mfd-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add support for Renesas RZ/G2L MTU3
New Device Support:
- Add support for Lenovo Yoga Book X90F to Intel CHT WC
- Add support for MAX5970 and MAX5978 to Simple MFD (I2C)
- Add support for Meteor Lake PCH-S LPSS PCI to Intel LPSS PCI
- Add support for AXP15060 PMIC to X-Powers PMIC collection
Remove Device Support:
- Remove support for Samsung 5M8751 and S5M8763 PMIC devices
New Functionality:
- Convert deprecated QCOM IRQ Chip to config registers
- Add support for 32-bit address spaces to Renesas SMUs
Fix-ups:
- Make use of APIs / MACROs designed to simplify and demystify
- Add / improve Device Tree bindings
- Memory saving struct layout optimisations
- Remove old / deprecated functionality
- Factor out unassigned register addresses from ranges
- Trivial: Spelling fixes, renames and coding style fixes
- Rid 'defined but not used' warnings
- Remove ineffective casts and pointer stubs
Bug Fixes:
- Fix incorrectly non-inverted mask/unmask IRQs on QCOM platforms
- Remove MODULE_*() helpers from non-tristate drivers
- Do not attempt to use out-of-range memory addresses associated with io_base
- Provide missing export helpers
- Fix remap bulk read optimisation fallout
- Fix memory leak issues in error paths"
* tag 'mfd-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (88 commits)
dt-bindings: mfd: ti,j721e-system-controller: Add SoC chip ID
leds: bd2606mvv: Driver for the Rohm 6 Channel i2c LED driver
dt-bindings: mfd: qcom,spmi-pmic: Document flash LED controller
dt-bindings: mfd: x-powers,axp152: Document the AXP15060 variant
mfd: axp20x: Add support for AXP15060 PMIC
dt-bindings: mfd: x-powers,axp152: Document the AXP313a variant
counter: rz-mtu3-cnt: Unlock on error in rz_mtu3_count_ceiling_write()
dt-bindings: mfd: dlg,da9063: Document voltage monitoring
dt-bindings: mfd: stm32: Remove unnecessary blank lines
dt-bindings: mfd: qcom,spmi-pmic: Use generic ADC node name in examples
dt-bindings: mfd: syscon: Add nuvoton,ma35d1-sys compatible
MAINTAINERS: Add entries for Renesas RZ/G2L MTU3a counter driver
counter: Add Renesas RZ/G2L MTU3a counter driver
Documentation: ABI: sysfs-bus-counter: add cascade_counts_enable and external_input_phase_clock_select
mfd: Add Renesas RZ/G2L MTU3a core driver
dt-bindings: timer: Document RZ/G2L MTU3a bindings
mfd: rsmu_i2c: Convert to i2c's .probe_new() again
mfd: intel-lpss: Add Intel Meteor Lake PCH-S LPSS PCI IDs
mfd: dln2: Fix memory leak in dln2_probe()
mfd: axp20x: Fix axp288 writable-ranges
...
Subsystem:
- Convert to platform remove callback returning void
Drivers:
- meson-vrtc: fix a firmware display issue
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Merge tag 'rtc-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Not much this cycle, there is the conversion to remove_new and many
small fixes in drivers:
Subsystem:
- Convert to platform remove callback returning void
Drivers:
- meson-vrtc: fix a firmware display issue"
* tag 'rtc-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (53 commits)
rtc: armada38x: use devm_platform_ioremap_resource_byname()
rtc: sunplus: use devm_platform_ioremap_resource_byname()
rtc: jz4740: Make sure clock provider gets removed
rtc: k3: handle errors while enabling wake irq
rtc: meson-vrtc: Use ktime_get_real_ts64() to get the current time
dt-bindings: rtc: Drop unneeded quotes
rtc: pcf8523: remove unnecessary OR operation
rtc: pcf8523: fix coding-style issues
rtc: ds1390: mark OF related data as maybe unused
rtc: omap: include header for omap_rtc_power_off_program prototype
rtc: sun6i: Use of_property_present() for testing DT property presence
rtc: mpfs: convert SOC_MICROCHIP_POLARFIRE to ARCH_MICROCHIP_POLARFIRE
rtc: zynqmp: Convert to platform remove callback returning void
rtc: xgene: Convert to platform remove callback returning void
rtc: wm8350: Convert to platform remove callback returning void
rtc: vt8500: Convert to platform remove callback returning void
rtc: twl: Convert to platform remove callback returning void
rtc: tps6586x: Convert to platform remove callback returning void
rtc: tegra: Convert to platform remove callback returning void
rtc: sunplus: Convert to platform remove callback returning void
...
Convert platform_get_resource_byname(),devm_ioremap_resource() to a single
call to devm_platform_ioremap_resource_byname(), as this is exactly what
this function does.
Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/202303221130316049449@zte.com.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Convert platform_get_resource_byname(),devm_ioremap_resource() to a single
call to devm_platform_ioremap_resource_byname(), as this is exactly what
this function does.
Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/202303221131581039486@zte.com.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The jz4740 RTC driver registers a clock provider, but never removes it.
This leaves a stale clock provider behind that references freed clocks when
the device is unbound.
Use the managed `devm_of_clk_add_hw_provider()` instead of
`of_clk_add_hw_provider()` to make sure the provider gets automatically
removed on unbind.
Fixes: 5ddfa148de ("rtc: jz4740: Register clock provider for the CLK32K pin")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20230409162544.16155-1-lars@metafoo.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The S5M8763 MFD has no device tree compatible, and since board file
support for it was removed, there's no way to use this MFD. After
removing the remaining code for it from the MFD driver, also remove
support for it in the s5m RTC driver, and all remaining references to
it.
Signed-off-by: David Virag <virag.david003@gmail.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230131183008.4451-3-virag.david003@gmail.com
Due to the potential failure of enable_irq_wake(), it would be better to
return error if it fails.
Fixes: b09d633575 ("rtc: Introduce ti-k3-rtc")
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20230323085904.957999-1-d-gole@ti.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The VRTC alarm register can be programmed with an amount of seconds
after which the SoC will be woken up by the VRTC timer again. We are
already converting the alarm time from meson_vrtc_set_alarm() to
"seconds since 1970". This means we also need to use "seconds since
1970" for the current time.
This fixes a problem where setting the alarm to one minute in the future
results in the firmware (which handles wakeup) to output (on the serial
console) that the system will be woken up in billions of seconds.
ktime_get_raw_ts64() returns the time since boot, not since 1970. Switch
to ktime_get_real_ts64() to fix the calculation of the alarm time and to
make the SoC wake up at the specified date/time. Also the firmware
(which manages suspend) now prints either 59 or 60 seconds until wakeup
(depending on how long it takes for the system to enter suspend).
Fixes: 6ef35398e8 ("rtc: Add Amlogic Virtual Wake RTC")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20230320212142.2355062-1-martin.blumenstingl@googlemail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The value variable is initialized to 0 and it is not used to set any
other bits rather than the one that defines the capacitor value. Setting
this capacitor value is the only purpose of the function where the
variable is defined and therefore the OR operation does not apply as a
way to foresee functionality extensions either.
Signed-off-by: Javier Carrasco <javier.carrasco@wolfvision.net>
Link: https://lore.kernel.org/r/20230315082021.2104452-3-javier.carrasco@wolfvision.net
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Minor modifications for coding-style correctness (tabs, spaces and blank
lines before and after brackets). In total 7 errors, 3 warnings and 1
check where removed from the checkpatch output without damaging code
readability.
Signed-off-by: Javier Carrasco <javier.carrasco@wolfvision.net>
Link: https://lore.kernel.org/r/20230315082021.2104452-2-javier.carrasco@wolfvision.net
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The driver can be compile tested with !CONFIG_OF making certain data
unused:
drivers/rtc/rtc-ds1390.c:216:34: error: ‘ds1390_of_match’ defined but not used [-Werror=unused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230311111226.250922-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Non-static functions should have a prototype:
drivers/rtc/rtc-omap.c:410:5: error: no previous prototype for ‘omap_rtc_power_off_program’ [-Werror=missing-prototypes]
Fixes: 6256f7f7f2 ("rtc: OMAP: Add support for rtc-only mode")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230311094021.79730-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties. As
part of this, convert of_get_property/of_find_property calls to the
recently added of_property_present() helper when we just want to test
for presence of a property and nothing more.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20230310144736.1547041-1-robh@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
As part of converting RISC-V SOC_FOO symbols to ARCH_FOO to match the
use of such symbols on other architectures, convert the Microchip FPGA
RTC driver to use the new symbol.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230309204452.969574-5-conor@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-42-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-41-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230304133028.2135435-40-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-39-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-38-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-37-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-36-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-35-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-34-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-33-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-32-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-31-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-30-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230304133028.2135435-29-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-28-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-27-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-26-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-25-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-24-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-23-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-22-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-21-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-20-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230304133028.2135435-19-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-18-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-17-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230304133028.2135435-16-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-15-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-14-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230304133028.2135435-13-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-By: Joshua Kinard <kumba@gentoo.org>
Link: https://lore.kernel.org/r/20230304133028.2135435-12-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20230304133028.2135435-11-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-10-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-9-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-8-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230304133028.2135435-7-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230304133028.2135435-4-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-3-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230304133028.2135435-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The module pointer in class_create() never actually did anything, and it
shouldn't have been requred to be set as a parameter even if it did
something. So just remove it and fix up all callers of the function in
the kernel tree at the same time.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20230313181843.1207845-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subsystem:
- allow rtc_read_alarm without read_alarm callback
New driver:
- NXP BBNSM module RTC
Drivers:
- use IRQ flags from fwnode when available
- abx80x: nvmem support
- brcmstb-waketimer: add non-wake alarm support
- ingenic: provide CLK32K clock
- isl12022: cleanups
- moxart: switch to using gpiod API
- pcf85363: allow setting quartz load
- pm8xxx: cleanups and support for setting time
- rv3028, rv3032: add ACPI support
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Merge tag 'rtc-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"A few drivers got some nice cleanups and a new driver are making the
bulk of the changes.
Subsystem:
- allow rtc_read_alarm without read_alarm callback
New driver:
- NXP BBNSM module RTC
Drivers:
- use IRQ flags from fwnode when available
- abx80x: nvmem support
- brcmstb-waketimer: add non-wake alarm support
- ingenic: provide CLK32K clock
- isl12022: cleanups
- moxart: switch to using gpiod API
- pcf85363: allow setting quartz load
- pm8xxx: cleanups and support for setting time
- rv3028, rv3032: add ACPI support"
* tag 'rtc-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (64 commits)
rtc: pm8xxx: add support for nvmem offset
dt-bindings: rtc: qcom-pm8xxx: add nvmem-cell offset
rtc: abx80x: Add nvmem support
rtc: rx6110: Remove unused of_gpio,h
rtc: efi: Avoid spamming the log on RTC read failure
rtc: isl12022: sort header inclusion alphabetically
rtc: isl12022: Join string literals back
rtc: isl12022: Drop unneeded OF guards and of_match_ptr()
rtc: isl12022: Explicitly use __le16 type for ISL12022_REG_TEMP_L
rtc: isl12022: Get rid of unneeded private struct isl12022
rtc: pcf85363: add support for the quartz-load-femtofarads property
dt-bindings: rtc: nxp,pcf8563: move pcf85263/pcf85363 to a dedicated binding
rtc: allow rtc_read_alarm without read_alarm callback
rtc: rv3032: add ACPI support
rtc: rv3028: add ACPI support
rtc: bbnsm: Add the bbnsm rtc support
rtc: jz4740: Register clock provider for the CLK32K pin
rtc: jz4740: Use dev_err_probe()
rtc: jz4740: Use readl_poll_timeout
dt-bindings: rtc: Add #clock-cells property
...
On many Qualcomm platforms the PMIC RTC control and time registers are
read-only so that the RTC time can not be updated. Instead an offset
needs be stored in some machine-specific non-volatile memory, which the
driver can take into account.
Add support for storing a 32-bit offset from the Epoch in an nvmem cell
so that the RTC time can be set on such platforms.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230202155448.6715-18-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This adds support for the 256-byte internal RAM. There are two windows
which can be used to access this RAM: 64 bytes at 0x40 (the "standard"
address space) and 128 bytes at 0x80 (the "alternate" address space). We
use the standard address space because it is also accessible over SPI
(if such a port is ever done). We are limited to 32-byte reads for SMBus
compatibility, so there's no advantage to using the alternate address
space.
There are some reserved bits in the EXTRAM register, and the datasheet
doesn't say what to do with them. I've opted to skip a read/modify/write
and just write the whole thing. If this driver is ever converted to
regmap, this would be a good place to use regmap_update_bits.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20221222214532.1873718-1-sean.anderson@seco.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
There are cases where the EFI runtime services may end up in a funny
state, e.g., due to a crash in the variable services, and this affects
other EFI runtime services as well.
That means that, even though GetTime() should not return an error, there
are cases where it might, and there is no point in logging such an
occurrence multiple times.
This works around an issue where user space -apparently- keeps hitting
on /dev/rtc if it fails to read the h/w clock, resulting in a tsunami of
log spam and a non-responsive system as a result.
Cc: Pierre Gondois <pierre.gondois@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Link: https://lore.kernel.org/all/Y2o1hdZK9GGDVJsS@monolith.localdoman/
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20230217142338.1444509-1-ardb@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
For easy grepping on debug purposes join string literals back in
the messages.
While at it, drop __func__ parameter from unique enough dev_dbg()
message as Dynamic Debug can retrieve this at run time.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20230110140806.87432-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Drop unneeded OF guards and of_match_ptr(). This allows use of
the driver with other types of firmware such as ACPI PRP0001 based
probing.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230110140806.87432-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
We are reading 10-bit value in a 16-bit register in LE format.
Make this explicit by using __le16 type for it and corresponding
conversion function.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20230110140806.87432-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
First of all, the struct rtc_device pointer is kept in the managed
resources, no need to keep it outside (no users in the driver).
Second, replace private struct isl12022 with a regmap.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20230110140806.87432-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The quartz oscillator load capacitance of the PCF85263 and PCF85363 can
be adjusted to 6 pF, 7 pF (default) and 12.5 pF with the CL[1:0] bits in
the oscillator control register (address 25h).
Signed-off-by: Javier Carrasco <javier.carrasco@wolfvision.net>
Link: https://lore.kernel.org/r/20230215081815.3141776-3-javier.carrasco@wolfvision.net
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
.read_alarm is not necessary to read the current alarm because it is
recorded in the aie_timer and so rtc_read_alarm() will never call
rtc_read_alarm_internal() which is the only function calling the callback.
Reported-by: Zhipeng Wang <zhipeng.wang_1@nxp.com>
Reported-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Fixes: 7ae41220ef ("rtc: introduce features bitfield")
Tested-by: Philippe Schenker <philippe.schenker@toradex.com>
Link: https://lore.kernel.org/r/20230214222754.582582-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The BBNSM module includes a real time counter with alarm.
Add a RTC driver for this function.
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20230215024117.3357341-3-ping.bai@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This is a follow-up to the deprecation of most of the old-style board
files that was merged in linux-6.0, removing them for good.
This branch is almost exclusively dead code removal based on those
annotations. Some device driver removals went through separate subsystem
trees, but the majority is in the same branch, in order to better handle
dependencies between the patches and avoid breaking bisection.
Unfortunately that leads to merge conflicts against other changes in the
subsystem trees, but they should all be trivial to resolve by removing
the files.
See commit 7d0d3fa733 ("Merge tag 'arm-boardfiles-6.0' of
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc") for the
description of which machines were marked unused and are now removed. The
only removals that got postponed are Terastation WXL (mv78xx0) and
Jornada720 (StrongARM1100), which turned out to still have potential
users.
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Merge tag 'arm-boardfile-remove-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC boardfile updates from Arnd Bergmann
"Unused boardfile removal for 6.3
This is a follow-up to the deprecation of most of the old-style board
files that was merged in linux-6.0, removing them for good.
This branch is almost exclusively dead code removal based on those
annotations. Some device driver removals went through separate
subsystem trees, but the majority is in the same branch, in order to
better handle dependencies between the patches and avoid breaking
bisection.
Unfortunately that leads to merge conflicts against other changes in
the subsystem trees, but they should all be trivial to resolve by
removing the files.
See commit 7d0d3fa733 ("Merge tag 'arm-boardfiles-6.0' of
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc") for the
description of which machines were marked unused and are now removed.
The only removals that got postponed are Terastation WXL (mv78xx0) and
Jornada720 (StrongARM1100), which turned out to still have potential
users"
* tag 'arm-boardfile-remove-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (91 commits)
mmc: omap: drop TPS65010 dependency
ARM: pxa: restore mfp-pxa320.h
usb: ohci-omap: avoid unused-variable warning
ARM: debug: remove references in DEBUG_UART_8250_SHIFT to removed configs
ARM: s3c: remove obsolete s3c-cpu-freq header
MAINTAINERS: adjust SAMSUNG SOC CLOCK DRIVERS after s3c24xx support removal
MAINTAINERS: update file entries after arm multi-platform rework and mach-pxa removal
ARM: remove CONFIG_UNUSED_BOARD_FILES
mfd: remove htc-pasic3 driver
w1: remove ds1wm driver
usb: remove ohci-tmio driver
fbdev: remove w100fb driver
fbdev: remove tmiofb driver
mmc: remove tmio_mmc driver
mfd: remove ucb1400 support
mfd: remove toshiba tmio drivers
rtc: remove v3020 driver
power: remove pda_power supply driver
ASoC: pxa: remove unused board support
pcmcia: remove unused pxa/sa1100 drivers
...
On JZ4770 and JZ4780, the CLK32K pin is configurable. By default, it is
configured as a GPIO in input mode, and its value can be read through
GPIO PD14.
With this change, clients can now request the 32 kHz clock on the CLK32K
pin, through Device Tree. This clock is simply a pass-through of the
input oscillator's clock with enable/disable operations.
This will permit the WiFi/Bluetooth chip to work on the MIPS CI20 board,
which does source one of its clocks from the CLK32K pin.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20230129120442.22858-5-paul@crapouillou.net
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Use readl_poll_timeout() from <iopoll.h> instead of using custom poll
loops.
The timeout settings are different, but that shouldn't be much of a
problem. Instead of polling 10000 times in a close loop, it polls for
one millisecond.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20230129120442.22858-3-paul@crapouillou.net
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Switch the driver from legacy gpio API that is deprecated to the newer
gpiod API that respects line polarities described in ACPI/DT.
This makes driver use standard property name for its gpios
("rtc-*-gpios" vs "gpios-rtc-*"), however there is a quirk in gpiolib
to also recognize legacy names and keep compatibility with older DTSes:
eaf1a29665 ("gpiolib: of: add a quirk for legacy names in MOXA ART
RTC").
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20230201054815.4112632-1-dmitry.torokhov@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
For consistency with the rest of the driver, drop the last two error
messages for conditions that should only occur during development, if
ever.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230202155448.6715-16-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Clean up local declarations somewhat by using the reverse xmas style
consistently throughout.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-15-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
In preparation for adding support for setting the time by means of an
externally stored offset, refactor read_time() by adding a new helper
that can be used to retrieve the raw time as stored in the RTC.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230202155448.6715-14-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The PMIC RTC registers are 32-bit so explicitly use u32 rather than
unsigned long for timestamps to reflect the hardware.
This will also help avoid unintentional range extensions when adding
support for managing an external offset.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230202155448.6715-13-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Clean up the driver comments somewhat and remove obsolete, incorrect or
redundant ones.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-12-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Clean up the driver somewhat by renaming the driver-data alarm irq
variable by dropping the redundant "rtc" prefix.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-11-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Rename the driver-data struct device pointer by dropping the "rtc"
prefix which is both redundant and misleading (as this is a pointer to
the platform device and not the rtc class device).
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-10-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Clean up the time and alarm callback debugging by using a consistent and
succinct human-readable (i.e. non-raw) format.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-9-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Use the unaligned le32 helpers instead of open coding when accessing the
time and alarm registers.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-8-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Drop the original register defines which have been unused since commit
c8d523a4b0 ("drivers/rtc/rtc-pm8xxx.c: rework to support pm8941 rtc").
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-7-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
In the unlikely event that disabling the alarm and clearing the status
ever fails, return IRQ_NONE instead of IRQ_HANDLED.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230202155448.6715-6-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Since commit c8d523a4b0 ("drivers/rtc/rtc-pm8xxx.c: rework to support
pm8941 rtc") which removed the shadow control register there is no need
for a driver lock.
Specifically, the rtc ops are serialised by rtc core and the interrupt
handler only unconditionally disables the alarm using the alarm_ctrl
register.
Note that since only the alarm enable bit of alarm_ctrl is used after
enabling the RTC at probe, the locking was not needed when doing open
coded read-modify-write cycles either.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-5-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Switch to using regmap_update_bits() instead of open coding
read-modify-write accesses.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-4-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Drop the unnecessary error messages after every spmi regmap access,
which are not expected to fail.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230202155448.6715-3-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Make sure to disable the alarm before updating the four alarm time
registers to avoid spurious alarms during the update.
Note that the disable needs to be done outside of the ctrl_reg_lock
section to prevent a racing alarm interrupt from disabling the newly set
alarm when the lock is released.
Fixes: 9a9a54ad7a ("drivers/rtc: add support for Qualcomm PMIC8xxx RTC")
Cc: stable@vger.kernel.org # 3.1
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-2-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
RTC core never calls rv8803_set_alarm with an invalid alarm time,
so if an invalid alarm time > 0 is set, external factors must have
corrupted the RTC's alarm time and possibly other registers.
Play it safe by marking the date/time invalid, so all registers are
reinitialized on a ->set_time.
This may cause existing setups to lose time if they so far set only
date/time, but ignored that the alarm registers had an invalid date
value, e.g.:
rtc rtc0: invalid alarm value: 2020-3-27 7:82:0
These systems will have their ->get_time return -EINVAL till
->set_time initializes the alarm value (and sets a new time).
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20221123095527.2771434-3-s.hauer@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The v3020 RTC driver was exclusively used by the now removed
cm-x300.c machine.
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-rtc@vger.kernel.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
rtc-max8907 is a platform driver that doesn't use any symbol provided in
<linux/i2c.h>. So drop the include.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20221219081440.1399791-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-12-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-11-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-10-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-9-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-8-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-7-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-6-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-5-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-4-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-3-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Allow the IRQ type to be passed from the device tree if available as there
may be components changing the trigger type of the interrupt between the
RTC and the IRQ controller.
Link: https://lore.kernel.org/r/20230123200217.1236011-2-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The wake interrupt only fires when the system is in a suspend
state. Fortunately we have another interrupt that fires in a
non-suspend state at the L2 controller UPG_AUX_AON. Add support
for this interrupt line so we can use the alarm in a non-wake
context.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230124201430.2502371-3-opendmb@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
On all variants of the hardware, the internal oscillator is one possible
parent for the AR100 clock. It needs to be exported so we can model that
relationship correctly in the devicetree.
Fixes: c56afc1844 ("rtc: sun6i: Expose internal oscillator through device tree")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20221229215319.14145-1-samuel@sholland.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
In preparation for adding a second interrupt to service RTC
interrupts, the existing interrupt is renamed from the generic
'irq' to 'wake_irq' to more clearly convey its role.
It is also converted to an unsigned int.
Finally, the driver message that outputs the IRQ number when
registered is removed since devm_rtc_register_device() already
provides a report of registration and the interrupts can be
found in /proc/interrupts.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230120190147.718976-5-opendmb@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Since the WKTMR hardware block cannot be disabled it is necessary
for the driver to accommodate for associated timing hazards. This
commit targets the following possibilities:
A possible race between clearing a wktmr event and the alarm expiring
is made one-sided by setting the alarm to its maximum value before
clearing the event.
Programming alarm values close to the current time may not trigger
events if the counter advances while the alarm is being programmed.
After programming an alarm, a check is made to ensure that it is
either in the future or an expiration event is pending.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230120190147.718976-4-opendmb@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
These changes are not intended to affect functionality, but
simplify the source code. They are performed here to simplify
review and reduce confusion with other changes in this set.
Since set_alarm includes the alarm_irq_enable functionality call
it directly from that function for simplicity (even though it
does nothing at the moment). The order of the declarations is
changed to prevent the need for a prototype.
The function device_init_wakeup() is used to replace the
functions device_set_wakeup_capable() and device_wakeup_enable()
since it is equivalent.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230120190147.718976-3-opendmb@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit defines bit 0 as the bit of interest within the
BRCMSTB_WKTMR_EVENT register to make the implementation more
readable.
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230120190147.718976-2-opendmb@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
On 32-bit architectures with 64-bit resource_size_t, sp_rtc_probe()
causes a compiler warning:
drivers/rtc/rtc-sunplus.c: In function 'sp_rtc_probe':
drivers/rtc/rtc-sunplus.c:243:33: error: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t' {aka 'long long unsigned int'} [-Werror=format=]
243 | dev_dbg(&plat_dev->dev, "res = 0x%x, reg_base = 0x%lx\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The best way to print a resource is the special %pR format string,
and similarly to print a pointer we can use %p and avoid the cast.
Fixes: fad6cbe9b2 ("rtc: Add driver for RTC in Sunplus SP7021")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230117172450.2938962-1-arnd@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
A number of device drivers reference CONFIG_ARM_S3C24XX_CPUFREQ or
similar symbols that are no longer available with the platform gone,
though the drivers themselves are still used on newer platforms,
so remove these hacks.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20221118224540.619276-561-uwe@kleine-koenig.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The current implementation of rtc-efi is expecting all the 4
time services GET{SET}_TIME{WAKEUP} must be supported by UEFI
firmware. As per the EFI_RT_PROPERTIES_TABLE, the platform
specific implementations can choose to enable selective time
services based on the RTC device capabilities.
This patch does the following changes to provide GET/SET RTC
services on platforms that do not support the WAKEUP feature.
1) Relax time services cap check when creating a platform device.
2) Clear RTC_FEATURE_ALARM bit in the absence of WAKEUP services.
3) Conditional alarm entries in '/proc/driver/rtc'.
Cc: <stable@vger.kernel.org> # v6.0+
Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com>
Link: https://lore.kernel.org/r/20230102230630.192911-1-sdonthineni@nvidia.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
- Add support for Ampere Computing SMpro
- Add support for TI TPS65219 PMIC
- New Functionality
- Add support for multiple devices of the same type; rk808
- Fix-ups
- Convert a bunch of I2C class drivers over to .probe_new()
- Remove superfluous includes; mc13xxx-*, palmas, timberdale
- Use correct includes for GPIO handling; madera-core
- Convert to GPIOD; twl6040
- Remove unused platform data handling; twl6040
- Device Tree changes; many
- Remove unused drivers; dm355evm_msp, davinci_voicecodec, htc-i2cpld
- Add support for modules; palmas
- Enable COMPILE_TEST support; intel_soc_pmic*
- Trivial: spelling / whitespace fixes; mc13xxx-spi
- Replace old PM helpers with new ones; many
- Convert deprecated mask_invert usage to unmask_base; many
- Use devm_*() calls; qcom_rpm
- MAINTAINER fix-ups
- Make use of improved / replaced APIs; palmas, fsl-imx25-tsadc,
stm32-lptimer, qcom_rpm, rohm-*
- Bug Fixes
- Add bounds / error checking; mt6360-core
- No sleeping inside critical sections; axp20x
- Fix missing dependencies; ROHM_BD957XMUF
- Repair error paths; qcom-pm8008
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Merge tag 'mfd-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add support for Ampere Computing SMpro
- Add support for TI TPS65219 PMIC
New Functionality:
- Add support for multiple devices of the same type; rk808
Fix-ups:
- Convert a bunch of I2C class drivers over to .probe_new()
- Remove superfluous includes; mc13xxx-*, palmas, timberdale
- Use correct includes for GPIO handling; madera-core
- Convert to GPIOD; twl6040
- Remove unused platform data handling; twl6040
- Device Tree changes; many
- Remove unused drivers; dm355evm_msp, davinci_voicecodec, htc-i2cpld
- Add support for modules; palmas
- Enable COMPILE_TEST support; intel_soc_pmic*
- Trivial: spelling / whitespace fixes; mc13xxx-spi
- Replace old PM helpers with new ones; many
- Convert deprecated mask_invert usage to unmask_base; many
- Use devm_*() calls; qcom_rpm
- MAINTAINER fix-ups
- Make use of improved / replaced APIs; palmas, fsl-imx25-tsadc,
stm32-lptimer, qcom_rpm, rohm-*
Bug Fixes:
- Add bounds / error checking; mt6360-core
- No sleeping inside critical sections; axp20x
- Fix missing dependencies; ROHM_BD957XMUF
- Repair error paths; qcom-pm8008"
* tag 'mfd-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (161 commits)
dt-bindings: mfd: da9062: Correct file name for watchdog
mfd: pm8008: Fix return value check in pm8008_probe()
mfd: rohm: Use dev_err_probe()
mfd: Drop obsolete dependencies on COMPILE_TEST
dt-bindings: mfd: da9062: Move IRQ to optional properties
mfd: qcom_rpm: Use devm_of_platform_populate() to simplify code
mfd: qcom_rpm: Fix an error handling path in qcom_rpm_probe()
mfd: stm32-lptimer: Use devm_platform_get_and_ioremap_resource()
mfd: rohm-bd9576: Convert to i2c's .probe_new()
mfd: fsl-imx25-tsadc: Use devm_platform_get_and_ioremap_resource()
dt-bindings: Fix maintainer email for a few ROHM ICs
mfd: palmas: Use device_get_match_data() to simplify the code
Input: Add tps65219 interrupt driven powerbutton
mfd: tps65219: Add driver for TI TPS65219 PMIC
mfd: bd957x: Fix Kconfig dependency on REGMAP_IRQ
mfd: wcd934x: Convert irq chip to config regs
mfd: tps65090: Replace irqchip mask_invert with unmask_base
mfd: sun4i-gpadc: Replace irqchip mask_invert with unmask_base
mfd: stpmic1: Fix swapped mask/unmask in irq chip
mfd: sprd-sc27xx-spi: Replace irqchip mask_invert with unmask_base
...
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/202211220947194856561@zte.com.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The call to clk_disable_unprepare() is left out in the error handling of
devm_rtc_allocate_device. Add it back.
Fixes: 5490a1e018 ("rtc: mxc_v2: fix possible race condition")
Signed-off-by: GUO Zihua <guozihua@huawei.com>
Link: https://lore.kernel.org/r/20221122085046.21689-1-guozihua@huawei.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Make the interrupt pin of the RV3028 usable with GPIO controllers
without level type IRQs support, such as the TI Davinci GPIO controller.
Therefore, allow the IRQ type to be passed from the device tree if
available.
Based on commit d4785b4634 ("rtc: pcf2127: use IRQ flags obtained from device tree if available")
Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Link: https://lore.kernel.org/r/20221208133605.4193907-1-w.egorov@phytec.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/202212051134455911470@zte.com.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Since commit 0166dc11be ("of: make CONFIG_OF user selectable"), it
is possible to test-build any driver which depends on OF on any
architecture by explicitly selecting OF. Therefore depending on
COMPILE_TEST as an alternative is no longer needed.
It is actually better to always build such drivers with OF enabled,
so that the test builds are closer to how each driver will actually be
built on its intended target. Building them without OF may not test
much as the compiler will optimize out potentially large parts of the
code. In the worst case, this could even pop false positive warnings.
Dropping COMPILE_TEST here improves the quality of our testing and
avoids wasting time on non-existent issues.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20221124154359.039be06c@endymion.delvare
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
pcf85063_clkout_control reads the wrong register but then update the
correct one.
Reported-by: Janne Terho <janne.terho@ouman.fi>
Fixes: 8c229ab604 ("rtc: pcf85063: Add pcf85063 clkout control to common clock framework")
Link: https://lore.kernel.org/r/20221211223553.59955-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
rx6110_spi_of_match is not used when !OF, leading to a warning:
>> drivers/rtc/rtc-rx6110.c:384:34: warning: 'rx6110_spi_of_match' defined but not used [-Wunused-const-variable=]
384 | static const struct of_device_id rx6110_spi_of_match[] = {
| ^~~~~~~~~~~~~~~~~~~
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20221211215756.54002-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reduce usage of 'struct rk808' (driver data of the parent MFD), so
that only the chip variant field is still being accessed directly.
This allows restructuring the MFD driver to support SPI based
PMICs.
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20221020204251.108565-4-sebastian.reichel@collabora.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
With clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG),
indirect call targets are validated against the expected function
pointer prototype to make sure the call target is valid to help mitigate
ROP attacks. If they are not identical, there is a failure at run time,
which manifests as either a kernel panic or thread getting killed.
msc313_rtc_probe() was passing clk_disable_unprepare() directly, which
did not have matching prototypes for devm_add_action_or_reset()'s
callback argument. Refactor to use devm_clk_get_enabled() instead.
This was found as a result of Clang's new -Wcast-function-type-strict
flag, which is more sensitive than the simpler -Wcast-function-type,
which only checks for type width mismatches.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/202211041527.HD8TLSE1-lkp@intel.com
Suggested-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Daniel Palmer <daniel@thingy.jp>
Cc: Romain Perier <romain.perier@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rtc@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Daniel Palmer <daniel@thingy.jp>
Tested-by: Daniel Palmer <daniel@thingy.jp>
Link: https://lore.kernel.org/r/20221202184525.gonna.423-kees@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The pic32_rtc_enable(pdata, 0) and clk_disable_unprepare(pdata->clk)
should be called in the error handling of devm_rtc_allocate_device(),
so we should move devm_rtc_allocate_device earlier in pic32_rtc_probe()
to fix it.
Fixes: 6515e23b9f ("rtc: pic32: convert to devm_rtc_allocate_device")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20221123015953.1998521-1-cuigaosheng1@huawei.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The clk_disable_unprepare() should be called in the error handling
of clk_get_rate(), fix it.
Fixes: b5b2bdfc28 ("rtc: st: Add new driver for ST's LPC RTC")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20221123014805.1993052-1-cuigaosheng1@huawei.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The DaVinci DM355EVM platform is gone after the removal of all
unused board files, so the MTD device along with its sub-devices
can be removed as well.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20221019152947.3857217-7-arnd@kernel.org
If the alarms are disabled the topmost bit (AEN_*) is set in the alarm
registers. This is also interpreted in BCD number leading to this warning:
rtc rtc0: invalid alarm value: 2022-09-21T80:80:80
Fix this by masking alarm enabling and reserved bits.
Fixes: 05cb3a56ee ("rtc: pcf85063: add alarm support")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20220921074141.3903104-1-alexander.stein@ew.tq-group.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Bugfix for an issue detected when a goldcap capacitor gets
fully discharged due to a long absence of the power supply,
and then recharges again. The RTC failed to continue to keep
the real-time clock.
This was caused by the incorrect handling of the STOP bit in
the RTC internal register. This fix solves the problem.
Signed-off-by: paulmn <paulmn@axis.com>
Link: https://lore.kernel.org/r/20220829124639.10906-1-paulmn@axis.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
If there is no IRQ hooked up, clear RTC_FEATURE_ALARM to make the core
ensure that userspace is made aware that alarms are not supported.
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Link: https://lore.kernel.org/r/20220301131220.4011810-1-vincent.whitchurch@axis.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
On an iMX6ULL the following message appears when a wakealarm is set:
echo 0 > /sys/class/rtc/rtc1/wakealarm
rtc rtc1: Timeout trying to get valid LPSRT Counter read
This does not always happen but is reproducible quite often (7 out of 10
times). The problem appears because the iMX6ULL is not able to read the
registers within one 32kHz clock cycle which is the base clock of the
RTC. Therefore, this patch allows a difference of up to 320 cycles
(10ms). 10ms was chosen to be big enough even on systems with less cpu
power (e.g. iMX6ULL). According to the reference manual a difference is
fine:
- If the two consecutive reads are similar, the value is correct.
The values have to be similar, not equal.
Fixes: cd7f3a249d ("rtc: snvs: Add timeouts to avoid kernel lockups")
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Francesco Dolcini <francesco@dolcini.it>
Link: https://lore.kernel.org/r/20221106115915.7930-1-francesco@dolcini.it
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Make cmos_do_remove() drop the ACPI RTC fixed event handler so as to
prevent it from operating on stale data in case the event triggers
after driver removal.
Fixes: 311ee9c151 ("rtc: cmos: allow using ACPI for RTC alarm instead of HPET")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/2224609.iZASKD2KPV@kreacher
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The names of rtc_wake_setup() and cmos_wake_setup() don't indicate
that these functions are ACPI-related, which is the case, and the
former doesn't really reflect the role of the function.
Rename them to acpi_rtc_event_setup() and acpi_cmos_wake_setup(),
respectively, to address this shortcoming.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/3225614.44csPzL39Z@kreacher
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reorder the ACPI-related code before cmos_do_probe() so as to eliminate
excessive forward declarations of some functions.
While at it, for consistency, add the inline modifier to the
definitions of empty stub static funtions and remove it from the
corresponding definitions of functions with non-empty bodies.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/13157911.uLZWGnKmhe@kreacher
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
To reduce code duplication, move the invocation of rtc_wake_setup()
into cmos_do_probe() and simplify the callers of the latter.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/2143522.irdbgypaU6@kreacher
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Notice that cmos_wake_setup() is the only user of acpi_rtc_info and it
can operate on the cmos_rtc variable directly, so it need not set the
platform_data pointer before cmos_do_probe() is called. Instead, it
can be called by cmos_do_probe() in the case when the platform_data
pointer is not set to implement the default behavior (which is to use
the FADT information as long as ACPI support is enabled).
Modify the code accordingly.
While at it, drop a comment that doesn't really match the code it is
supposed to be describing.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/4803444.31r3eYUQgx@kreacher
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
In `ds1347_set_time()`, the wrong value is being written to the
`DS1347_CENTURY_REG` register. It needs to be converted to BCD. Fix
it.
Fixes: 147dae76db ("rtc: ds1347: handle century register")
Cc: <stable@vger.kernel.org> # v5.5+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20221027163249.447416-1-abbotti@mev.co.uk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The isl12022 has built-in temperature compensation effective over the
range -40C to +85C. It exposes the average of the last two temperature
measurements as a 10-bit value in half-Kelvins. Make this available
via the hwmon framework.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20221104110225.2219761-1-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Return the value s35390a_set_reg() directly instead of storing it in
another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/20220905090119.335121-1-ye.xingchen@zte.com.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The ftm_rtc_driver has been registered while module init, however there
is not unregister step for module exit, now use the macro
module_platform_driver replace device_initcall, which can register and
unregister platform driver automatically.
Signed-off-by: Zhang Jianhua <chris.zjh@huawei.com>
Link: https://lore.kernel.org/r/20220906143037.1455317-1-chris.zjh@huawei.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The Davinci dm365 SoC support was removed, so the rtc driver
has no remaining users.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20221019152947.3857217-9-arnd@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
In the probe path, dev_err() can be replace with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220919083812.755082-1-yangyingliang@huawei.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Remove unnecessary spi_set_drvdata() in ds1302_remove(), the driver_data
will be set to NULL in device_unbind_cleanup() after calling ->remove().
After this, ds1302_remove() is an empty function, so remove it too.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220913144905.2004924-1-yangyingliang@huawei.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
RTC chips on some older Chromebooks can only handle alarms less than 24
hours in the future. Attempts to set an alarm beyond that range fails.
The most severe impact of this limitation is that suspend requests fail
if alarmtimer_suspend() tries to set an alarm for more than 24 hours
in the future.
Try to set the real-time alarm to just below 24 hours if setting it to
a larger value fails to work around the problem. While not perfect, it
is better than just failing the call. A similar workaround is already
implemented in the rtc-tps6586x driver.
Drop error messages in cros_ec_rtc_get() and cros_ec_rtc_set() since the
calling code also logs an error and to avoid spurious error messages if
setting the alarm ultimately succeeds.
Cc: Brian Norris <briannorris@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Commit: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Link: https://lore.kernel.org/r/20221029005400.2712577-1-linux@roeck-us.net
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The PM8018 compatible is always used with PM8921 fallback, so PM8018
compatible can be safely removed from device ID table
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20220928-mdm9615-dt-schema-fixes-v5-2-bbb120c6766a@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in .probe(). The device_id array has to move up for that
to work.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20221021130706.178687-9-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in .probe(). The device_id array has to move up for that
to work.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20221021130706.178687-7-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in .probe(). The device_id array has to move up for that
to work.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20221021130706.178687-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Commit 4919d3eb2e ("rtc: cmos: Fix event handler registration
ordering issue") overlooked the fact that cmos_do_probe() depended
on the preparations carried out by cmos_wake_setup() and the wake
alarm stopped working after the ordering of them had been changed.
Address this by partially reverting commit 4919d3eb2e so that
cmos_wake_setup() is called before cmos_do_probe() again and moving
the rtc_wake_setup() invocation from cmos_wake_setup() directly to the
callers of cmos_do_probe() where it will happen after a successful
completion of the latter.
Fixes: 4919d3eb2e ("rtc: cmos: Fix event handler registration ordering issue")
Reported-by: Zhang Rui <rui.zhang@intel.com>
Reported-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/5887691.lOV4Wx5bFT@kreacher
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Drivers:
- switch to devm_clk_get_enabled() where relevant
- cmos: event handler registration fix
- isl12022: code improvements
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Merge tag 'rtc-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"A great rework of the isl12022 driver makes up the bulk of the
changes. There is also an important fix for CMOS and then the usual
small fixes:
- switch to devm_clk_get_enabled() where relevant
- cmos: event handler registration fix
- isl12022: code improvements"
* tag 'rtc-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
rtc: rv3028: Fix codestyle errors
rtc: cmos: Fix event handler registration ordering issue
rtc: k3: Use devm_clk_get_enabled() helper
rtc: jz4740: Use devm_clk_get_enabled() helper
rtc: mpfs: Use devm_clk_get_enabled() helper
rtc: ds1685: Fix spelling of function name in comment block
rtc: isl12022: switch to using regmap API
rtc: isl12022: drop redundant write to HR register
rtc: isl12022: use dev_set_drvdata() instead of i2c_set_clientdata()
rtc: isl12022: use %ptR
rtc: isl12022: simplify some expressions
rtc: isl12022: drop a dev_info()
rtc: isl12022: specify range_min and range_max
rtc: isl12022: stop using deprecated devm_rtc_device_register()
rtc: stmp3xxx: Add failure handling for stmp3xxx_wdt_register()
rtc: mxc: Use devm_clk_get_enabled() helper
rtc: gamecube: Always reset HW_SRNPROT after read
rtc: k3: detect SoC to determine erratum fix
rtc: k3: wait until the unlock field is not zero
rtc: mpfs: Remove printing of stray CR
Compiler warnings：
drivers/rtc/rtc-rv3028.c: In function 'rv3028_param_set':
drivers/rtc/rtc-rv3028.c:559:20: warning: statement will never be executed [-Wswitch-unreachable]
559 | u8 mode;
| ^~~~
drivers/rtc/rtc-rv3028.c: In function 'rv3028_param_get':
drivers/rtc/rtc-rv3028.c:526:21: warning: statement will never be executed [-Wswitch-unreachable]
526 | u32 value;
| ^~~~~
Fix it by moving the variable declaration to the beginning of the function.
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: Ke Sun <sunke@kylinos.cn>
Link: https://lore.kernel.org/r/20221008071321.1799971-1-sunke@kylinos.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Because acpi_install_fixed_event_handler() enables the event
automatically on success, it is incorrect to call it before the
handler routine passed to it is ready to handle events.
Unfortunately, the rtc-cmos driver does exactly the incorrect thing
by calling cmos_wake_setup(), which passes rtc_handler() to
acpi_install_fixed_event_handler(), before cmos_do_probe(), because
rtc_handler() uses dev_get_drvdata() to get to the cmos object
pointer and the driver data pointer is only populated in
cmos_do_probe().
This leads to a NULL pointer dereference in rtc_handler() on boot
if the RTC fixed event happens to be active at the init time.
To address this issue, change the initialization ordering of the
driver so that cmos_wake_setup() is always called after a successful
cmos_do_probe() call.
While at it, change cmos_pnp_probe() to call cmos_do_probe() after
the initial if () statement used for computing the IRQ argument to
be passed to cmos_do_probe() which is cleaner than calling it in
each branch of that if () (local variable "irq" can be of type int,
because it is passed to that function as an argument of type int).
Note that commit 6492fed7d8 ("rtc: rtc-cmos: Do not check
ACPI_FADT_LOW_POWER_S0") caused this issue to affect a larger number
of systems, because previously it only affected systems with
ACPI_FADT_LOW_POWER_S0 set, but it is present regardless of that
commit.
Fixes: 6492fed7d8 ("rtc: rtc-cmos: Do not check ACPI_FADT_LOW_POWER_S0")
Fixes: a474aaedac ("rtc-cmos: move wake setup from ACPI glue into RTC driver")
Link: https://lore.kernel.org/linux-acpi/20221010141630.zfzi7mk7zvnmclzy@techsingularity.net/
Reported-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Mel Gorman <mgorman@techsingularity.net>
Link: https://lore.kernel.org/r/5629262.DvuYhMxLoT@kreacher
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The devm_clk_get_enabled() helper:
- calls devm_clk_get()
- calls clk_prepare_enable() and registers what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code, the error handling paths and avoid the need of
a dedicated function used with devm_add_action_or_reset().
Based on my test with allyesconfig, this reduces the .o size from:
text data bss dec hex filename
12843 4804 64 17711 452f drivers/rtc/rtc-ti-k3.o
down to:
12523 4804 64 17391 43ef drivers/rtc/rtc-ti-k3.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/601288834ab71c0fddde7eedd8cdb8001254ed7e.1661329498.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The devm_clk_get_enabled() helper:
- calls devm_clk_get()
- calls clk_prepare_enable() and registers what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code, the error handling paths and avoid the need of
a dedicated function used with devm_add_action_or_reset().
As a side effect, some error messages are not logged anymore, so also use
dev_err_probe() instead of dev_err() in case of error.
At least the error code will be logged (and -EPROBE_DEFER will be filtered)
Based on my test with allyesconfig, this reduces the .o size from:
text data bss dec hex filename
9025 2488 128 11641 2d79 drivers/rtc/rtc-jz4740.o
down to:
8267 2080 128 10475 28eb drivers/rtc/rtc-jz4740.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/af10570000d7e103d70bbea590ce8df4f8902b67.1661330532.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The devm_clk_get_enabled() helper:
- calls devm_clk_get()
- calls clk_prepare_enable() and registers what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code, the error handling paths and avoid the need of
a dedicated function used with devm_add_action_or_reset().
That said, mpfs_rtc_init_clk() is the same as devm_clk_get_enabled(), so
use this function directly instead.
This also fixes an (unlikely) unchecked devm_add_action_or_reset() error.
Based on my test with allyesconfig, this reduces the .o size from:
text data bss dec hex filename
5330 2208 0 7538 1d72 drivers/rtc/rtc-mpfs.o
down to:
5074 2208 0 7282 1c72 drivers/rtc/rtc-mpfs.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/e55c959f2821a2c367a4c5de529a638b1cc6b8cd.1661329086.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The function name is missing the letter 'd' in the comment block.
Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Link: https://lore.kernel.org/r/20221003153711.271630-1-colin.i.king@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The regmap abstraction allows us to avoid the private i2c transfer
helpers, and also offers some nice utility functions such as the
regmap_update_bits family.
While at it, simplify the code even more by not keeping track of
->write_enabled: rtc_set_time is not a hot path, so one extra i2c read
doesn't hurt (regmap_update_bits elides the write when the bits are
already as desired).
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-9-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
There's nothing in the data sheet that says writing to one of the time
keeping registers is necessary to start the RTC. It does so at the
stop condition of the i2c transfer setting the WRTC bit:
Upon initialization or power-up, the WRTC must be set to "1" to
enable the RTC. Upon the completion of a valid write (STOP), the RTC
starts counting.
Moreover, even if such a write to one of the timekeeping registers was
necessary, that's exactly what we do anyway just below when we
actually write the given struct rtc_time to the device.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-8-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
As another preparation for removing direct references to the
i2c_client in the helper functions, stash a pointer to the private
data via dev_set_drvdata() instead of i2c_set_clientdata().
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-7-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Simplify the code and make the output format consistent with other RTC
drivers by standardizing on using the %ptR printf extension.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-6-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
These instances of '&client->dev' might as well be spelled 'dev', since
'client' has been computed from 'dev' via 'client =
to_i2c_client(dev)'.
Later patches will get rid of that local variable 'client', so remove
these unnecessary references so those later patches become easier to
read.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-5-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This dev_info() seems to be a debug leftover, and it would only get
printed once (or, once per battery change).
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-4-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The isl12022 can (only) keep track of times in the range
2000-2099. The data sheet says
The calendar registers track date, month, year, and day of the week
and are accurate through 2099, with automatic leap year correction.
The lower bound of 2000 is obtained by simply observing that its YR
register only counts from 00 through 99.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-3-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The comments say that devm_rtc_device_register() is deprecated and
that one should instead use devm_rtc_allocate_device() and
[devm_]rtc_register_device. So do that.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-2-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The devm_clk_get_enabled() helper:
- calls devm_clk_get()
- calls clk_prepare_enable() and registers what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code, the error handling paths and avoid the need of
a dedicated function used with devm_add_action_or_reset().
Based on my test with allyesconfig, this reduces the .o size from:
text data bss dec hex filename
6705 1968 0 8673 21e1 drivers/rtc/rtc-mxc.o
down to:
6212 1968 0 8180 1ff4 drivers/rtc/rtc-mxc.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1b5ad1877304b01ddbba73ca615274a52f781aa2.1660582728.git.christophe.jaillet@wanadoo.fr
This register would fail to be reset if reading the RTC bias failed for
whichever reason. This commit reorganises the code around to
unconditionally write it back to its previous value, unmap it, and
return the result of regmap_read(), which makes it both simpler and more
correct in the error case.
Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220823130702.1046-1-linkmauve@linkmauve.fr
To allow new SoCs to use this device without a new compatible string,
use a soc_device_attribute list to define all SoCs affected by the TI
i2327 erratum and require help from their bootloaders to unlock this
device.
Signed-off-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220816173312.23243-2-bb@ti.com
After writing the magic words to the KICK0 and KICK1 registers, we must
wait for a 1 in the unlock field of the general control register to
signify when the rtc device is in an unlocked state.
Signed-off-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220816173312.23243-1-bb@ti.com
During boot, the driver prints out a stray carriage return character.
Remove it, together with the preceding space character.
While at it, change prescaler to "unsigned long", as returned by
clk_get_rate(), to avoid truncating very large clock rates, and update
the format specifiers.
Fixes: 0b31d70359 ("rtc: Add driver for Microchip PolarFire SoC")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/bce2ca405ef96b1363fd1370887409d9e8468422.1660659437.git.geert+renesas@glider.be
The value returned by an i2c driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)
So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.
Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/*
Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5
Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860
Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b
Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes
Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
