On 6/20/25 17:49, Cheick Traore wrote:
> Add support for STM32MP25 SoC.
> IPIDR register is used to check the hardware configuration register
> when available to gather the number of complementary outputs.
>
> Signed-off-by: Cheick Traore <cheick.tra...@foss.st.com>
> ---
>
> drivers/pwm/pwm-stm32.c | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c
> index 5fa649b5903..a691f75e4a7 100644
> --- a/drivers/pwm/pwm-stm32.c
> +++ b/drivers/pwm/pwm-stm32.c
> @@ -12,6 +12,7 @@
> #include <asm/io.h>
> #include <asm/arch/timers.h>
> #include <dm/device_compat.h>
> +#include <linux/bitfield.h>
> #include <linux/time.h>
>
> #define CCMR_CHANNEL_SHIFT 8
> @@ -157,7 +158,14 @@ static void stm32_pwm_detect_complementary(struct
> udevice *dev)
> {
> struct stm32_timers_plat *plat = dev_get_plat(dev_get_parent(dev));
> struct stm32_pwm_priv *priv = dev_get_priv(dev);
> - u32 ccer;
> + u32 ccer, val;
> +
> + if (plat->ipidr) {
> + /* Simply read from HWCFGR the number of complementary outputs
> (MP25). */
> + val = readl(plat->base + TIM_HWCFGR1);
> + priv->have_complementary_output =
> !!FIELD_GET(TIM_HWCFGR1_NB_OF_DT, val);
> + return;
> + }
>
> /*
> * If complementary bit doesn't exist writing 1 will have no
> @@ -192,6 +200,7 @@ static const struct pwm_ops stm32_pwm_ops = {
>
> static const struct udevice_id stm32_pwm_ids[] = {
> { .compatible = "st,stm32-pwm" },
> + { .compatible = "st,stm32mp25-pwm" },
> { }
> };
>
Hi Cheick
Reviewed-by: Patrice Chotard <patrice.chot...@foss.st.com>
Thanks
