Hello Paweł,
On Tue, Jul 31, 2018 at 05:18:10PM +0200, Paweł Chmiel wrote:
> According to documentation, device isn't ready for communication,
> until firmware asserts the CHG line. Add missing wait for this.
>
> Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@xxxxxxxxx>
> ---
> drivers/input/touchscreen/atmel_mxt_ts.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
> index 2cd7f6db6ba9..79e08916359f 100644
> --- a/drivers/input/touchscreen/atmel_mxt_ts.c
> +++ b/drivers/input/touchscreen/atmel_mxt_ts.c
> @@ -202,6 +202,7 @@ enum t100_type {
> #define MXT_CRC_TIMEOUT 1000 /* msec */
> #define MXT_FW_RESET_TIME 3000 /* msec */
> #define MXT_FW_CHG_TIMEOUT 300 /* msec */
> +#define MXT_POWERON_DELAY 150 /* msec */
>
> /* Command to unlock bootloader */
> #define MXT_UNLOCK_CMD_MSB 0xaa
> @@ -3046,6 +3047,16 @@ static int mxt_regulator_enable(struct mxt_data *data)
> msleep(MXT_REGULATOR_DELAY);
> gpiod_set_value(data->reset_gpio, 1);
> msleep(MXT_RESET_INVALID_CHG);
> +
> +retry_wait:
> + reinit_completion(&data->bl_completion);
> + data->in_bootloader = true;
> + error = mxt_wait_for_completion(data, &data->bl_completion,
> + MXT_POWERON_DELAY);
Please fix the following checkpatch issues:
drivers/input/touchscreen/atmel_mxt_ts.c:3078: WARNING:LONG_LINE: line over 80 characters
drivers/input/touchscreen/atmel_mxt_ts.c:3078: CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
Thanks!
--
Regards,
George
> + if (error == -EINTR)
> + goto retry_wait;
> +
> + data->in_bootloader = false;
> }
>
> return 0;
> --
> 2.7.4
>
>
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