diff options
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-stm32.c | 11 |
1 files changed, 10 insertions, 1 deletions
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" }, { } }; |