linux-kernel - [PATCH 07/11] i2c: imx-lpi2c: increase PM timeout to avoid operate clk frequently

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Message-Id: <20210317065359.3109394-8-xiaoning.wang@nxp.com>
Date:   Wed, 17 Mar 2021 14:53:55 +0800
From:   Clark Wang <xiaoning.wang@....com>
To:     aisheng.dong@....com, shawnguo@...nel.org, s.hauer@...gutronix.de
Cc:     kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        sumit.semwal@...aro.org, christian.koenig@....com,
        linux-i2c@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 07/11] i2c: imx-lpi2c: increase PM timeout to avoid operate clk frequently

Switching the clock frequently will affect the data transmission
efficiency, and prolong the timeout to reduce autosuspend times for
lpi2c.

Acked-by: Fugang Duan <fugang.duan@....com>
Signed-off-by: Clark Wang <xiaoning.wang@....com>
---
 drivers/i2c/busses/i2c-imx-lpi2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c
index 86b69852f7be..c0cb77c66090 100644
--- a/drivers/i2c/busses/i2c-imx-lpi2c.c
+++ b/drivers/i2c/busses/i2c-imx-lpi2c.c
@@ -75,7 +75,7 @@
 #define I2C_CLK_RATIO	2
 #define CHUNK_DATA	256
 
-#define I2C_PM_TIMEOUT		10 /* ms */
+#define I2C_PM_TIMEOUT		1000 /* ms */
 
 enum lpi2c_imx_mode {
 	STANDARD,	/* 100+Kbps */
-- 
2.25.1