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counter: stm32-timer-cnt: add support for stm32mp25

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Add support for STM32MP25 SoC. There are new counter modes that may be
implemented in later. Still, use newly introduced compatible to handle
this new HW variant and avoid being blocked with existing compatible
in SoC dtsi file. Modes supported currently still remains compatible.
New timer 20 has encoder capability, add it to the list.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20250110091922.980627-4-fabrice.gasnier@foss.st.com
Signed-off-by: William Breathitt Gray <wbg@kernel.org>
This commit is contained in:
Fabrice Gasnier 2025-01-10 10:19:17 +01:00 committed by William Breathitt Gray
parent 08e2a660b1
commit ace2cd11a2
1 changed files with 5 additions and 2 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/counter/stm32-timer-cnt.c
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@ -669,12 +669,14 @@ static void stm32_timer_cnt_detect_channels(struct device *dev,
dev_dbg(dev, "has %d cc channels\n", priv->nchannels); dev_dbg(dev, "has %d cc channels\n", priv->nchannels);
} }
/* encoder supported on TIM1 TIM2 TIM3 TIM4 TIM5 TIM8 */ /* encoder supported on TIM1 TIM2 TIM3 TIM4 TIM5 TIM8 TIM20 */
#define STM32_TIM_ENCODER_SUPPORTED (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(7)) #define STM32_TIM_ENCODER_SUPPORTED (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(7) | \
BIT(19))
static const char * const stm32_timer_trigger_compat[] = { static const char * const stm32_timer_trigger_compat[] = {
"st,stm32-timer-trigger", "st,stm32-timer-trigger",
"st,stm32h7-timer-trigger", "st,stm32h7-timer-trigger",
"st,stm32mp25-timer-trigger",
}; };
static int stm32_timer_cnt_probe_encoder(struct device *dev, static int stm32_timer_cnt_probe_encoder(struct device *dev,
@ -846,6 +848,7 @@ static SIMPLE_DEV_PM_OPS(stm32_timer_cnt_pm_ops, stm32_timer_cnt_suspend,
static const struct of_device_id stm32_timer_cnt_of_match[] = { static const struct of_device_id stm32_timer_cnt_of_match[] = {
{ .compatible = "st,stm32-timer-counter", }, { .compatible = "st,stm32-timer-counter", },
{ .compatible = "st,stm32mp25-timer-counter", },
{}, {},
}; };
MODULE_DEVICE_TABLE(of, stm32_timer_cnt_of_match); MODULE_DEVICE_TABLE(of, stm32_timer_cnt_of_match);