From 940f1bace02b02362272df27fdef992570665a5f Mon Sep 17 00:00:00 2001
From: Alan Carvalho de Assis <acassis@gmail.com>
Date: Thu, 15 Feb 2024 12:54:21 -0300
Subject: [PATCH] arch/stm32h7: Clear all PWM channel when during STOP
I noticed when executing pwm STOP command in
multichannel mode, the channel still outputting.
This commit fixes this issue.
Signed-off-by: Alan C. Assis <acassis@gmail.com>
---
arch/arm/src/stm32h7/stm32_pwm.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/src/stm32h7/stm32_pwm.c b/arch/arm/src/stm32h7/stm32_pwm.c
index e6da7c99f2..d6f682eccc 100644
--- a/arch/arm/src/stm32h7/stm32_pwm.c
+++ b/arch/arm/src/stm32h7/stm32_pwm.c
@@ -4227,6 +4227,14 @@ static int pwm_stop(struct pwm_lowerhalf_s *dev)
regval &= ~resetbit;
putreg32(regval, regaddr);
+
+ /* Clear all channels */
+
+ pwm_putreg(priv, STM32_GTIM_CCR1_OFFSET, 0);
+ pwm_putreg(priv, STM32_GTIM_CCR2_OFFSET, 0);
+ pwm_putreg(priv, STM32_GTIM_CCR3_OFFSET, 0);
+ pwm_putreg(priv, STM32_GTIM_CCR4_OFFSET, 0);
+
leave_critical_section(flags);
pwminfo("regaddr: %08" PRIx32 " resetbit: %08" PRIx32 "\n",