linux-kernel - [PATCH 5/5] i2c: imx-lpi2c: increase PM timeout to avoid operate clk frequently

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Message-Id: <20240829093722.2714921-5-carlos.song@nxp.com>
Date: Thu, 29 Aug 2024 17:37:22 +0800
From: carlos.song@....com
To: aisheng.dong@....com,
	andi.shyti@...nel.org,
	shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	festevam@...il.com
Cc: linux-i2c@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 5/5] i2c: imx-lpi2c: increase PM timeout to avoid operate clk frequently

From: Clark Wang <xiaoning.wang@....com>

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

Signed-off-by: Clark Wang <xiaoning.wang@....com>
Signed-off-by: Carlos Song <carlos.song@....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 210d505db76d..cc5e5d96aacd 100644
--- a/drivers/i2c/busses/i2c-imx-lpi2c.c
+++ b/drivers/i2c/busses/i2c-imx-lpi2c.c
@@ -129,7 +129,7 @@
 #define I2C_CLK_RATIO	2
 #define CHUNK_DATA	256
 
-#define I2C_PM_TIMEOUT		10 /* ms */
+#define I2C_PM_TIMEOUT		1000 /* ms */
 #define I2C_DMA_THRESHOLD	8 /* bytes */
 
 enum lpi2c_imx_mode {
-- 
2.34.1