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path: root/drivers/leds/leds-pca955x.c
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Diffstat (limited to 'drivers/leds/leds-pca955x.c')
-rw-r--r--drivers/leds/leds-pca955x.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c
index 905729191d3e..78183f90820e 100644
--- a/drivers/leds/leds-pca955x.c
+++ b/drivers/leds/leds-pca955x.c
@@ -61,6 +61,10 @@
#define PCA955X_LS_BLINK0 0x2 /* Blink at PWM0 rate */
#define PCA955X_LS_BLINK1 0x3 /* Blink at PWM1 rate */
+#define PCA955X_GPIO_INPUT LED_OFF
+#define PCA955X_GPIO_HIGH LED_OFF
+#define PCA955X_GPIO_LOW LED_FULL
+
enum pca955x_type {
pca9550,
pca9551,
@@ -329,9 +333,9 @@ static int pca955x_set_value(struct gpio_chip *gc, unsigned int offset,
struct pca955x_led *led = &pca955x->leds[offset];
if (val)
- return pca955x_led_set(&led->led_cdev, LED_FULL);
- else
- return pca955x_led_set(&led->led_cdev, LED_OFF);
+ return pca955x_led_set(&led->led_cdev, PCA955X_GPIO_HIGH);
+
+ return pca955x_led_set(&led->led_cdev, PCA955X_GPIO_LOW);
}
static void pca955x_gpio_set_value(struct gpio_chip *gc, unsigned int offset,
@@ -355,8 +359,11 @@ static int pca955x_gpio_get_value(struct gpio_chip *gc, unsigned int offset)
static int pca955x_gpio_direction_input(struct gpio_chip *gc,
unsigned int offset)
{
- /* To use as input ensure pin is not driven */
- return pca955x_set_value(gc, offset, 0);
+ struct pca955x *pca955x = gpiochip_get_data(gc);
+ struct pca955x_led *led = &pca955x->leds[offset];
+
+ /* To use as input ensure pin is not driven. */
+ return pca955x_led_set(&led->led_cdev, PCA955X_GPIO_INPUT);
}
static int pca955x_gpio_direction_output(struct gpio_chip *gc,