Signed-off-by: Guenter Roeck <li...@roeck-us.net>
---
drivers/extcon/extcon-gpio.c | 4 +++-
include/linux/extcon/extcon-gpio.h | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index 973600e..d4e3c89 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -34,6 +34,7 @@
struct gpio_extcon_data {
struct extcon_dev edev;
unsigned gpio;
+ bool gpio_active_low;
const char *state_on;
const char *state_off;
int irq;
@@ -48,7 +49,7 @@ static void gpio_extcon_work(struct work_struct *work)
container_of(to_delayed_work(work), struct gpio_extcon_data,
work);
- state = gpio_get_value(data->gpio);
+ state = gpio_get_value(data->gpio) ^ data->gpio_active_low;
extcon_set_state(&data->edev, state);
}
@@ -96,6 +97,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
extcon_data->edev.name = pdata->name;
extcon_data->gpio = pdata->gpio;
+ extcon_data->gpio_active_low = pdata->gpio_active_low;
extcon_data->state_on = pdata->state_on;
extcon_data->state_off = pdata->state_off;
if (pdata->state_on && pdata->state_off)
diff --git a/include/linux/extcon/extcon-gpio.h
b/include/linux/extcon/extcon-gpio.h
index 2d8307f..1613899 100644
--- a/include/linux/extcon/extcon-gpio.h
+++ b/include/linux/extcon/extcon-gpio.h
@@ -41,6 +41,7 @@
struct gpio_extcon_platform_data {
const char *name;
unsigned gpio;
+ bool gpio_active_low;
unsigned long debounce;
unsigned long irq_flags;
--
1.7.9.7
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