On Sat, Jul 11, 2015 at 10:36:42PM +0800, HungNien Chen wrote:
> The original value is 200ms, it includes the loading fw & boot up to
> the main function. After that, the main function will do algorithm
> initialized and touch calibrtion about 1.1 second. The touch
> calibration will change controller freq to scan the best working freq
> and it has risk to make the i2c data error when doing fw update.
> We extend the sleep to 2500ms after the sw reset to skip this period time.
>
> Signed-off-by: HungNien Chen <hn.chen@xxxxxxxxxxxxxxx>
Applied, thank you.
> ---
> drivers/input/touchscreen/wdt87xx_i2c.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
> index b97cb4f..cfd1487 100644
> --- a/drivers/input/touchscreen/wdt87xx_i2c.c
> +++ b/drivers/input/touchscreen/wdt87xx_i2c.c
> @@ -157,6 +157,7 @@
> /* Controller requires minimum 300us between commands */
> #define WDT_COMMAND_DELAY_MS 2
> #define WDT_FLASH_WRITE_DELAY_MS 4
> +#define WDT_FW_RESET_TIME 2500
>
> struct wdt87xx_sys_param {
> u16 fw_id;
> @@ -413,7 +414,7 @@ static int wdt87xx_sw_reset(struct i2c_client *client)
> }
>
> /* Wait the device to be ready */
> - msleep(200);
> + msleep(WDT_FW_RESET_TIME);
>
> return 0;
> }
> --
> 1.9.1
>
--
Dmitry
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