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path: root/drivers/video/backlight/corgi_lcd.c
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Diffstat (limited to 'drivers/video/backlight/corgi_lcd.c')
-rw-r--r--drivers/video/backlight/corgi_lcd.c68
1 files changed, 18 insertions, 50 deletions
diff --git a/drivers/video/backlight/corgi_lcd.c b/drivers/video/backlight/corgi_lcd.c
index 68f7592c5060..25ef0cbd7583 100644
--- a/drivers/video/backlight/corgi_lcd.c
+++ b/drivers/video/backlight/corgi_lcd.c
@@ -15,7 +15,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/fb.h>
#include <linux/lcd.h>
#include <linux/spi/spi.h>
@@ -90,9 +90,8 @@ struct corgi_lcd {
int mode;
char buf[2];
- int gpio_backlight_on;
- int gpio_backlight_cont;
- int gpio_backlight_cont_inverted;
+ struct gpio_desc *backlight_on;
+ struct gpio_desc *backlight_cont;
void (*kick_battery)(void);
};
@@ -403,13 +402,13 @@ static int corgi_bl_set_intensity(struct corgi_lcd *lcd, int intensity)
corgi_ssp_lcdtg_send(lcd, DUTYCTRL_ADRS, intensity);
/* Bit 5 via GPIO_BACKLIGHT_CONT */
- cont = !!(intensity & 0x20) ^ lcd->gpio_backlight_cont_inverted;
+ cont = !!(intensity & 0x20);
- if (gpio_is_valid(lcd->gpio_backlight_cont))
- gpio_set_value_cansleep(lcd->gpio_backlight_cont, cont);
+ if (lcd->backlight_cont)
+ gpiod_set_value_cansleep(lcd->backlight_cont, cont);
- if (gpio_is_valid(lcd->gpio_backlight_on))
- gpio_set_value_cansleep(lcd->gpio_backlight_on, intensity);
+ if (lcd->backlight_on)
+ gpiod_set_value_cansleep(lcd->backlight_on, intensity);
if (lcd->kick_battery)
lcd->kick_battery();
@@ -482,48 +481,17 @@ static int setup_gpio_backlight(struct corgi_lcd *lcd,
struct corgi_lcd_platform_data *pdata)
{
struct spi_device *spi = lcd->spi_dev;
- int err;
-
- lcd->gpio_backlight_on = -1;
- lcd->gpio_backlight_cont = -1;
-
- if (gpio_is_valid(pdata->gpio_backlight_on)) {
- err = devm_gpio_request(&spi->dev, pdata->gpio_backlight_on,
- "BL_ON");
- if (err) {
- dev_err(&spi->dev,
- "failed to request GPIO%d for backlight_on\n",
- pdata->gpio_backlight_on);
- return err;
- }
-
- lcd->gpio_backlight_on = pdata->gpio_backlight_on;
- gpio_direction_output(lcd->gpio_backlight_on, 0);
- }
- if (gpio_is_valid(pdata->gpio_backlight_cont)) {
- err = devm_gpio_request(&spi->dev, pdata->gpio_backlight_cont,
- "BL_CONT");
- if (err) {
- dev_err(&spi->dev,
- "failed to request GPIO%d for backlight_cont\n",
- pdata->gpio_backlight_cont);
- return err;
- }
-
- lcd->gpio_backlight_cont = pdata->gpio_backlight_cont;
-
- /* spitz and akita use both GPIOs for backlight, and
- * have inverted polarity of GPIO_BACKLIGHT_CONT
- */
- if (gpio_is_valid(lcd->gpio_backlight_on)) {
- lcd->gpio_backlight_cont_inverted = 1;
- gpio_direction_output(lcd->gpio_backlight_cont, 1);
- } else {
- lcd->gpio_backlight_cont_inverted = 0;
- gpio_direction_output(lcd->gpio_backlight_cont, 0);
- }
- }
+ lcd->backlight_on = devm_gpiod_get_optional(&spi->dev,
+ "BL_ON", GPIOD_OUT_LOW);
+ if (IS_ERR(lcd->backlight_on))
+ return PTR_ERR(lcd->backlight_on);
+
+ lcd->backlight_cont = devm_gpiod_get_optional(&spi->dev, "BL_CONT",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(lcd->backlight_cont))
+ return PTR_ERR(lcd->backlight_cont);
+
return 0;
}