From c723a410a497048a069e4125136486f1f357da7a Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sun, 12 Mar 2023 14:09:33 -0700 Subject: [PATCH] iio: adc: ti-ads7950: Set `can_sleep` flag for GPIO chip commit 363c7dc72f79edd55bf1c4380e0fbf7f1bbc2c86 upstream. The ads7950 uses a mutex as well as SPI transfers in its GPIO callbacks. This means these callbacks can sleep and the `can_sleep` flag should be set. Having the flag set will make sure that warnings are generated when calling any of the callbacks from a potentially non-sleeping context. Fixes: c97dce792dc8 ("iio: adc: ti-ads7950: add GPIO support") Signed-off-by: Lars-Peter Clausen Acked-by: David Lechner Link: https://lore.kernel.org/r/20230312210933.2275376-1-lars@metafoo.de Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/ti-ads7950.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iio/adc/ti-ads7950.c b/drivers/iio/adc/ti-ads7950.c index 2cc9a9bd9db6..263fc3a1b87e 100644 --- a/drivers/iio/adc/ti-ads7950.c +++ b/drivers/iio/adc/ti-ads7950.c @@ -634,6 +634,7 @@ static int ti_ads7950_probe(struct spi_device *spi) st->chip.label = dev_name(&st->spi->dev); st->chip.parent = &st->spi->dev; st->chip.owner = THIS_MODULE; + st->chip.can_sleep = true; st->chip.base = -1; st->chip.ngpio = TI_ADS7950_NUM_GPIOS; st->chip.get_direction = ti_ads7950_get_direction;