video: cdf-panel: support lcd class operations for s6d6aa1 panel

Signed-off-by: Donghwa Lee <dh09.lee@samsung.com>

diff --git a/drivers/video/display/panel-s6d6aa1.c b/drivers/video/display/panel-s6d6aa1.c
index d48f926..dd5285d 100644 (file)
--- a/drivers/video/display/panel-s6d6aa1.c
+++ b/drivers/video/display/panel-s6d6aa1.c
@@ -56,6 +56,7 @@ struct s6d6aa1 {
        struct device *dev;
 
        struct s6d6aa1_platform_data *pdata;
+       struct lcd_device *ld;
        struct backlight_device *bd;
        struct regulator_bulk_data supplies[2];
 
@@ -415,6 +416,51 @@ static const struct backlight_ops s6d6aa1_backlight_ops = {
        .update_status = s6d6aa1_set_brightness,
 };
 
+static int s6d6aa1_set_power(struct lcd_device *ld, int power)
+{
+       struct s6d6aa1 *lcd = lcd_get_data(ld);
+       enum display_entity_state state;
+       int ret = 0;
+
+       switch (power) {
+       case FB_BLANK_UNBLANK:
+               state = DISPLAY_ENTITY_STATE_ON;
+               ret = display_entity_set_state(&lcd->entity, state);
+               if (ret)
+                       goto unlock;
+
+               s6d6aa1_brightness_ctrl(lcd, lcd->bd->props.brightness);
+               break;
+       case FB_BLANK_POWERDOWN:
+               s6d6aa1_brightness_ctrl(lcd, 0);
+
+               state = DISPLAY_ENTITY_STATE_OFF;
+               ret = display_entity_set_state(&lcd->entity, state);
+               if (ret)
+                       goto unlock;
+               break;
+       default:
+               state = DISPLAY_ENTITY_STATE_STANDBY;
+       }
+
+       lcd->power = power;
+
+unlock:
+       return ret;
+}
+
+static int s6d6aa1_get_power(struct lcd_device *ld)
+{
+       struct s6d6aa1 *lcd = lcd_get_data(ld);
+
+       return lcd->power;
+}
+
+static struct lcd_ops s6d6aa1_lcd_ops = {
+       .set_power = s6d6aa1_set_power,
+       .get_power = s6d6aa1_get_power,
+};
+
 static int s6d6aa1_check_mtp(struct s6d6aa1 *lcd)
 {
        s6d6aa1_apply_level_1_key(lcd);
@@ -679,6 +725,14 @@ static int s6d6aa1_probe(struct platform_device *pdev)
                goto err_regulator_bulk_get;
        }
 
+       lcd->ld = lcd_device_register("s6d6aa1", &pdev->dev, lcd,
+                       &s6d6aa1_lcd_ops);
+       if (IS_ERR(lcd->ld)) {
+               dev_err(lcd->dev, "failed to register lcd ops.\n");
+               ret = PTR_ERR(lcd->ld);
+               goto err_lcd_register;
+       }
+
        lcd->bd = backlight_device_register("s6d6aa1", &pdev->dev, lcd,
                        &s6d6aa1_backlight_ops, NULL);
        if (IS_ERR(lcd->bd)) {
@@ -712,6 +766,8 @@ static int s6d6aa1_probe(struct platform_device *pdev)
 err_display_register:
        backlight_device_unregister(lcd->bd);
 err_backlight_register:
+       lcd_device_unregister(lcd->ld);
+err_lcd_register:
        regulator_bulk_free(ARRAY_SIZE(lcd->supplies), lcd->supplies);
 err_regulator_bulk_get:
        kfree(lcd);