[PATCH v3 04/11] Input: ilitek_ts_i2c: fix warning with gpio controllers that sleep

Josua Mayer josua at solid-run.com
Mon Dec 1 04:38:53 PST 2025


Am 18.11.25 um 20:22 schrieb Dmitry Torokhov:
> Hi Josua,
>
> On Mon, Nov 17, 2025 at 01:28:46PM +0100, Josua Mayer wrote:
>> The ilitek touchscreen driver uses the non-sleeping gpiod_set_value
>> function for reset.
>>
>> Switch to using gpiod_set_value_cansleep() when controlling reset_gpio to
>> support GPIO providers that may sleep, such as I2C GPIO expanders.
>>
>> This fixes noisy complaints in kernel log for gpio providers that do
>> sleep.
>>
>> Signed-off-by: Josua Mayer <josua at solid-run.com>
>> ---
>>  drivers/input/touchscreen/ilitek_ts_i2c.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/input/touchscreen/ilitek_ts_i2c.c b/drivers/input/touchscreen/ilitek_ts_i2c.c
>> index 0dd632724a003..8c5a54b336816 100644
>> --- a/drivers/input/touchscreen/ilitek_ts_i2c.c
>> +++ b/drivers/input/touchscreen/ilitek_ts_i2c.c
>> @@ -396,9 +396,9 @@ static const struct ilitek_protocol_map ptl_func_map[] = {
>>  static void ilitek_reset(struct ilitek_ts_data *ts, int delay)
>>  {
>>  	if (ts->reset_gpio) {
>> -		gpiod_set_value(ts->reset_gpio, 1);
>> +		gpiod_set_value_cansleep(ts->reset_gpio, 1);
>>  		mdelay(10);
> This (and below) should be usleep_range/msleep/fsleep.

True ....

So I will change it since I am areadly changing the code next to it.

>
>> -		gpiod_set_value(ts->reset_gpio, 0);
>> +		gpiod_set_value_cansleep(ts->reset_gpio, 0);
>>  		mdelay(delay);
>>  	}
>>  }
>>
> Thanks.
>


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