Original 20ms delay is a margin timing after a block writing in FW update flow. Sometimes it will cause fail during FW-updating if I2C timing delay. We offten see this issue in rockchip's I2C host. Extend the delay timing is the safest way to improve it. Signed-off-by: KT Liao <kt.liao@xxxxxxxxxx> --- drivers/input/mouse/elan_i2c_i2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/mouse/elan_i2c_i2c.c b/drivers/input/mouse/elan_i2c_i2c.c index 80172f2..4db376c 100644 --- a/drivers/input/mouse/elan_i2c_i2c.c +++ b/drivers/input/mouse/elan_i2c_i2c.c @@ -587,7 +587,7 @@ static int elan_i2c_write_fw_block(struct i2c_client *client, } /* Wait for F/W to update one page ROM data. */ - msleep(20); + msleep(35); error = elan_i2c_read_cmd(client, ETP_I2C_IAP_CTRL_CMD, val); if (error) { -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html