From: Lars-Peter Clausen lars@metafoo.de
[ Upstream commit ab00709310eedcd8dae0df1f66d332f9bc64c99e ]
The ltc2992 drivers uses a mutex and I2C bus access in its GPIO chip `set` and `get` implementation. This means these functions can sleep and the GPIO chip should set the `can_sleep` property to true.
This will ensure that a warning is printed when trying to set or get the GPIO value from a context that potentially can't sleep.
Fixes: 9ca26df1ba25 ("hwmon: (ltc2992) Add support for GPIOs.") Signed-off-by: Lars-Peter Clausen lars@metafoo.de Link: https://lore.kernel.org/r/20230314093146.2443845-2-lars@metafoo.de Signed-off-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hwmon/ltc2992.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/hwmon/ltc2992.c b/drivers/hwmon/ltc2992.c index 88514152d9306..69341de397cb9 100644 --- a/drivers/hwmon/ltc2992.c +++ b/drivers/hwmon/ltc2992.c @@ -323,6 +323,7 @@ static int ltc2992_config_gpio(struct ltc2992_state *st) st->gc.label = name; st->gc.parent = &st->client->dev; st->gc.owner = THIS_MODULE; + st->gc.can_sleep = true; st->gc.base = -1; st->gc.names = st->gpio_names; st->gc.ngpio = ARRAY_SIZE(st->gpio_names);