On ACPI platforms the wake GPIO is unused, make it optional to avoid
probe failure on those platforms.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
Changes in v2:
-No Changes
Changes in v3:
-Make wake_gpio optional instead of completely disabling gpio support for
ACPI based platforms
---
drivers/input/touchscreen/chipone_icn8318.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/input/touchscreen/chipone_icn8318.c b/drivers/input/touchscreen/chipone_icn8318.c
index 0bf14067c167..27df6ca3a8a3 100644
--- a/drivers/input/touchscreen/chipone_icn8318.c
+++ b/drivers/input/touchscreen/chipone_icn8318.c
@@ -137,7 +137,8 @@ static int icn8318_start(struct input_dev *dev)
struct icn8318_data *data = input_get_drvdata(dev);
enable_irq(data->client->irq);
- gpiod_set_value_cansleep(data->wake_gpio, 1);
+ if (data->wake_gpio)
+ gpiod_set_value_cansleep(data->wake_gpio, 1);
return 0;
}
@@ -149,7 +150,8 @@ static void icn8318_stop(struct input_dev *dev)
disable_irq(data->client->irq);
i2c_smbus_write_byte_data(data->client, ICN8318_REG_POWER,
ICN8318_POWER_HIBERNATE);
- gpiod_set_value_cansleep(data->wake_gpio, 0);
+ if (data->wake_gpio)
+ gpiod_set_value_cansleep(data->wake_gpio, 0);
}
#ifdef CONFIG_PM_SLEEP
@@ -197,7 +199,7 @@ static int icn8318_probe(struct i2c_client *client,
if (!data)
return -ENOMEM;
- data->wake_gpio = devm_gpiod_get(dev, "wake", GPIOD_OUT_LOW);
+ data->wake_gpio = devm_gpiod_get_optional(dev, "wake", GPIOD_OUT_LOW);
if (IS_ERR(data->wake_gpio)) {
error = PTR_ERR(data->wake_gpio);
if (error != -EPROBE_DEFER)
--
2.13.0
--
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