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" },
{ }
};
--
2.34.1
