linux-kernel - [PATCH] pwm: stm32: remove automatic output enable

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Message-ID: <1574333880-29339-1-git-send-email-fabrice.gasnier@st.com>
Date:   Thu, 21 Nov 2019 11:58:00 +0100
From:   Fabrice Gasnier <fabrice.gasnier@...com>
To:     <thierry.reding@...il.com>, <u.kleine-koenig@...gutronix.de>
CC:     <alexandre.torgue@...com>, <benjamin.gaignard@...com>,
        <fabrice.gasnier@...com>, <linux-pwm@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>
Subject: [PATCH] pwm: stm32: remove automatic output enable

Don't use AOE (automatic output enable) by default.
In case of break events, pwm is automatically re-enabled on next pwm
cycle otherwise.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
---
 drivers/pwm/pwm-stm32.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c
index 359b085..3079818 100644
--- a/drivers/pwm/pwm-stm32.c
+++ b/drivers/pwm/pwm-stm32.c
@@ -374,9 +374,7 @@ static int stm32_pwm_config(struct stm32_pwm *priv, int ch,
 	else
 		regmap_update_bits(priv->regmap, TIM_CCMR2, mask, ccmr);
 
-	regmap_update_bits(priv->regmap, TIM_BDTR,
-			   TIM_BDTR_MOE | TIM_BDTR_AOE,
-			   TIM_BDTR_MOE | TIM_BDTR_AOE);
+	regmap_update_bits(priv->regmap, TIM_BDTR, TIM_BDTR_MOE, TIM_BDTR_MOE);
 
 	return 0;
 }
-- 
2.7.4