linux-kernel - [PATCH 3/6] pwm: stm32: Don't open-code TIM_CCER

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Message-ID:  <7803f63b1310ddbd706f51f2f42d30b6dd786b03.1743844730.git.u.kleine-koenig@baylibre.com>
Date: Sat,  5 Apr 2025 11:27:14 +0200
From: Uwe Kleine-König <u.kleine-koenig@...libre.com>
To: linux-pwm@...r.kernel.org
Cc: Fabrice Gasnier <fabrice.gasnier@...s.st.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 3/6] pwm: stm32: Don't open-code TIM_CCER_CCxE()

Instead of manually calculating the offset of the channels CCxE bit,
make use of the TIM_CCER_CCxE macro.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...libre.com>
---
 drivers/pwm/pwm-stm32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c
index ec2c05c9ee7a..c6625f51a199 100644
--- a/drivers/pwm/pwm-stm32.c
+++ b/drivers/pwm/pwm-stm32.c
@@ -88,7 +88,7 @@ static int stm32_pwm_round_waveform_tohw(struct pwm_chip *chip,
 
 	rate = clk_get_rate(priv->clk);
 
-	if (active_channels(priv) & ~(1 << ch * 4)) {
+	if (active_channels(priv) & ~TIM_CCER_CCxE(ch + 1)) {
 		u64 arr;
 
 		/*
-- 
2.47.2