2021-04-06 20:50:37

by Clark Wang

[permalink] [raw]
Subject: [PATCH V2 09/18] 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.

Signed-off-by: Clark Wang <[email protected]>
Acked-by: Fugang Duan <[email protected]>
Reviewed-by: Dong Aisheng <[email protected]>
---
V2 changes:
- No change. Has been reviewed by Dong Aisheng <[email protected]> in V1.
---
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 dfec334712c2..77ceb743b282 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