linux-kernel - [PATCH] iio: trigger: stm32-timer: remove unnecessary update event

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Message-ID: <1574334317-30014-1-git-send-email-fabrice.gasnier@st.com>
Date:   Thu, 21 Nov 2019 12:05:17 +0100
From:   Fabrice Gasnier <fabrice.gasnier@...com>
To:     <jic23@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <benjamin.gaignard@...com>,
        <mcoquelin.stm32@...il.com>, <alexandre.torgue@...com>,
        <fabrice.gasnier@...com>, <linux-iio@...r.kernel.org>,
        <lars@...afoo.de>, <knaack.h@....de>, <pmeerw@...erw.net>,
        <linux-stm32@...md-mailman.stormreply.com>
Subject: [PATCH] iio: trigger: stm32-timer: remove unnecessary update event

There is no need to explicitly generate update event to update
timer master mode.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
---
 drivers/iio/trigger/stm32-timer-trigger.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index a5dfe65..2e0d32a 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -297,9 +297,6 @@ static ssize_t stm32_tt_store_master_mode(struct device *dev,
 			     strlen(master_mode_table[i]))) {
 			regmap_update_bits(priv->regmap, TIM_CR2, mask,
 					   i << shift);
-			/* Make sure that registers are updated */
-			regmap_update_bits(priv->regmap, TIM_EGR,
-					   TIM_EGR_UG, TIM_EGR_UG);
 			return len;
 		}
 	}
-- 
2.7.4