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pwm: stm32: Fix complementary output in round_waveform_tohw()

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When the timer supports complementary output, the CCxNE bit must be set
additionally to the CCxE bit. So to not overwrite the latter use |=
instead of = to set the former.

Fixes: deaba9cff8 ("pwm: stm32: Implementation of the waveform callbacks")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20241217150021.2030213-1-fabrice.gasnier@foss.st.com
[ukleinek: Slightly improve commit log]
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
This commit is contained in:
Fabrice Gasnier 2024-12-17 16:00:21 +01:00 committed by Uwe Kleine-König
parent 40384c840e
commit edc19bd0e5
1 changed files with 1 additions and 1 deletions
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drivers/pwm/pwm-stm32.c
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@ -84,7 +84,7 @@ static int stm32_pwm_round_waveform_tohw(struct pwm_chip *chip,
wfhw->ccer = TIM_CCER_CCxE(ch + 1);
if (priv->have_complementary_output)
wfhw->ccer = TIM_CCER_CCxNE(ch + 1);
wfhw->ccer |= TIM_CCER_CCxNE(ch + 1);
rate = clk_get_rate(priv->clk);