forked from mirrors/linux
ARM: OMAP2+: Remove unused legacy code for timer
We are now booting all mach-omap2 in device tree only mode. Any code that is only called in legacy boot mode where of_have_populated_dt() is not set is safe to remove now. Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren
parent
2ea659a9ef
commit
8d39ff3d16
1 changed files with 18 additions and 149 deletions
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@ -232,37 +232,27 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
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const char **timer_name,
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int posted)
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{
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char name[10]; /* 10 = sizeof("gptXX_Xck0") */
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const char *oh_name = NULL;
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struct device_node *np;
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struct omap_hwmod *oh;
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struct resource irq, mem;
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struct clk *src;
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int r = 0;
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if (of_have_populated_dt()) {
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np = omap_get_timer_dt(omap_timer_match, property);
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if (!np)
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return -ENODEV;
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np = omap_get_timer_dt(omap_timer_match, property);
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if (!np)
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return -ENODEV;
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of_property_read_string_index(np, "ti,hwmods", 0, &oh_name);
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if (!oh_name)
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return -ENODEV;
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of_property_read_string_index(np, "ti,hwmods", 0, &oh_name);
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if (!oh_name)
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return -ENODEV;
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timer->irq = irq_of_parse_and_map(np, 0);
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if (!timer->irq)
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return -ENXIO;
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timer->irq = irq_of_parse_and_map(np, 0);
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if (!timer->irq)
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return -ENXIO;
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timer->io_base = of_iomap(np, 0);
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timer->io_base = of_iomap(np, 0);
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of_node_put(np);
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} else {
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if (omap_dm_timer_reserve_systimer(timer->id))
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return -ENODEV;
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sprintf(name, "timer%d", timer->id);
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oh_name = name;
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}
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of_node_put(np);
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oh = omap_hwmod_lookup(oh_name);
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if (!oh)
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@ -270,22 +260,6 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
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*timer_name = oh->name;
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if (!of_have_populated_dt()) {
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r = omap_hwmod_get_resource_byname(oh, IORESOURCE_IRQ, NULL,
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&irq);
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if (r)
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return -ENXIO;
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timer->irq = irq.start;
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r = omap_hwmod_get_resource_byname(oh, IORESOURCE_MEM, NULL,
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&mem);
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if (r)
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return -ENXIO;
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/* Static mapping, never released */
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timer->io_base = ioremap(mem.start, mem.end - mem.start);
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}
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if (!timer->io_base)
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return -ENXIO;
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@ -405,18 +379,15 @@ static int __init __maybe_unused omap2_sync32k_clocksource_init(void)
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const char *oh_name = "counter_32k";
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/*
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* If device-tree is present, then search the DT blob
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* to see if the 32kHz counter is supported.
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* See if the 32kHz counter is supported.
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*/
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if (of_have_populated_dt()) {
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np = omap_get_timer_dt(omap_counter_match, NULL);
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if (!np)
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return -ENODEV;
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np = omap_get_timer_dt(omap_counter_match, NULL);
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if (!np)
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return -ENODEV;
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of_property_read_string_index(np, "ti,hwmods", 0, &oh_name);
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if (!oh_name)
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return -ENODEV;
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}
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of_property_read_string_index(np, "ti,hwmods", 0, &oh_name);
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if (!oh_name)
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return -ENODEV;
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/*
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* First check hwmod data is available for sync32k counter
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@ -434,18 +405,6 @@ static int __init __maybe_unused omap2_sync32k_clocksource_init(void)
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return ret;
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}
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if (!of_have_populated_dt()) {
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void __iomem *vbase;
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vbase = omap_hwmod_get_mpu_rt_va(oh);
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ret = omap_init_clocksource_32k(vbase);
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if (ret) {
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pr_warn("%s: failed to initialize counter_32k as a clocksource (%d)\n",
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__func__, ret);
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omap_hwmod_idle(oh);
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}
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}
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return ret;
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}
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@ -660,96 +619,6 @@ void __init omap5_realtime_timer_init(void)
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}
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#endif /* CONFIG_SOC_OMAP5 || CONFIG_SOC_DRA7XX */
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/**
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* omap_timer_init - build and register timer device with an
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* associated timer hwmod
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* @oh: timer hwmod pointer to be used to build timer device
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* @user: parameter that can be passed from calling hwmod API
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*
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* Called by omap_hwmod_for_each_by_class to register each of the timer
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* devices present in the system. The number of timer devices is known
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* by parsing through the hwmod database for a given class name. At the
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* end of function call memory is allocated for timer device and it is
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* registered to the framework ready to be proved by the driver.
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*/
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static int __init omap_timer_init(struct omap_hwmod *oh, void *unused)
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{
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int id;
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int ret = 0;
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char *name = "omap_timer";
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struct dmtimer_platform_data *pdata;
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struct platform_device *pdev;
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struct omap_timer_capability_dev_attr *timer_dev_attr;
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pr_debug("%s: %s\n", __func__, oh->name);
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/* on secure device, do not register secure timer */
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timer_dev_attr = oh->dev_attr;
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if (omap_type() != OMAP2_DEVICE_TYPE_GP && timer_dev_attr)
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if (timer_dev_attr->timer_capability == OMAP_TIMER_SECURE)
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return ret;
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pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
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if (!pdata) {
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pr_err("%s: No memory for [%s]\n", __func__, oh->name);
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return -ENOMEM;
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}
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/*
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* Extract the IDs from name field in hwmod database
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* and use the same for constructing ids' for the
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* timer devices. In a way, we are avoiding usage of
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* static variable witin the function to do the same.
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* CAUTION: We have to be careful and make sure the
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* name in hwmod database does not change in which case
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* we might either make corresponding change here or
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* switch back static variable mechanism.
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*/
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sscanf(oh->name, "timer%2d", &id);
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if (timer_dev_attr)
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pdata->timer_capability = timer_dev_attr->timer_capability;
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pdata->timer_errata = omap_dm_timer_get_errata();
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pdata->get_context_loss_count = omap_pm_get_dev_context_loss_count;
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pdev = omap_device_build(name, id, oh, pdata, sizeof(*pdata));
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if (IS_ERR(pdev)) {
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pr_err("%s: Can't build omap_device for %s: %s.\n",
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__func__, name, oh->name);
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ret = -EINVAL;
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}
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kfree(pdata);
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return ret;
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}
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/**
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* omap2_dm_timer_init - top level regular device initialization
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*
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* Uses dedicated hwmod api to parse through hwmod database for
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* given class name and then build and register the timer device.
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*/
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static int __init omap2_dm_timer_init(void)
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{
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int ret;
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/* If dtb is there, the devices will be created dynamically */
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if (of_have_populated_dt())
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return -ENODEV;
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ret = omap_hwmod_for_each_by_class("timer", omap_timer_init, NULL);
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if (unlikely(ret)) {
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pr_err("%s: device registration failed.\n", __func__);
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return -EINVAL;
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}
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return 0;
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}
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omap_arch_initcall(omap2_dm_timer_init);
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/**
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* omap2_override_clocksource - clocksource override with user configuration
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*
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