static int ea8061_early_set_power(struct lcd_device *ld, int power)
{
struct ea8061 *lcd = lcd_get_data(ld);
struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
int ret = 0;
if (power != FB_BLANK_UNBLANK && power != FB_BLANK_POWERDOWN &&
power != FB_BLANK_NORMAL) {
dev_err(lcd->dev, "power value should be 0, 1 or 4.\n");
return -EINVAL;
}
if (lcd->power == power) {
dev_err(lcd->dev, "power mode is same as previous one.\n");
return -EINVAL;
}
if (ops->set_early_blank_mode) {
/* LCD power off */
if ((POWER_IS_OFF(power) && POWER_IS_ON(lcd->power))
|| (POWER_IS_ON(lcd->power) && POWER_IS_NRM(power))) {
ret = ops->set_early_blank_mode(lcd_to_master(lcd),
power);
if (!ret && lcd->power != power)
lcd->power = power;
}
}
return ret;
}
static int corgi_lcd_set_power(struct lcd_device *ld, int power)
{
struct corgi_lcd *lcd = dev_get_drvdata(&ld->dev);
if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power))
corgi_lcd_power_on(lcd);
if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power))
corgi_lcd_power_off(lcd);
lcd->power = power;
return 0;
}
static int auo_a043fl01v2_set_power(struct lcd_device *lcd, int power)
{
struct auo_a043fl01v2_data *dev= lcd_get_data(lcd);
if (POWER_IS_ON(power) && !POWER_IS_ON(dev->lcd_power))
auo_a043fl01v2_on(dev);
if (!POWER_IS_ON(power) && POWER_IS_ON(dev->lcd_power))
auo_a043fl01v2_off(dev);
dev->lcd_power = power;
return 0;
}
static int ea8061_power(struct lcd_info *lcd, int power)
{
int ret = 0;
if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power))
ret = ea8061_power_on(lcd);
else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power))
ret = ea8061_power_off(lcd);
if (!ret)
lcd->power = power;
return ret;
}
static int ili922x_lcd_power(struct ili922x *lcd, int power)
{
int ret = 0;
if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power))
ret = ili922x_poweron(lcd->spi);
else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power))
ret = ili922x_poweroff(lcd->spi);
if (!ret)
lcd->power = power;
return ret;
}
static int hx8357_set_power(struct lcd_device *lcdev, int power)
{
struct hx8357_data *lcd = lcd_get_data(lcdev);
int ret = 0;
if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->state))
ret = hx8357_exit_standby(lcdev);
else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->state))
ret = hx8357_enter_standby(lcdev);
if (ret == 0)
lcd->state = power;
else
dev_warn(&lcdev->dev, "failed to set power mode %d\n", power);
return ret;
}
static int ili9320_power(struct ili9320 *lcd, int power)
{
int ret = 0;
dev_dbg(lcd->dev, "power %d => %d\n", lcd->power, power);
if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power))
ret = ili9320_power_on(lcd);
else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power))
ret = ili9320_power_off(lcd);
if (ret == 0)
lcd->power = power;
else
dev_warn(lcd->dev, "failed to set power mode %d\n", power);
return ret;
}
static int ws2401_power(struct ws2401_lcd *lcd, int power)
{
int ret = 0;
dev_dbg(lcd->dev, "%s(): old=%d (%s), new=%d (%s)\n", __func__,
lcd->power, POWER_IS_ON(lcd->power) ? "on" : "off",
power, POWER_IS_ON(power) ? "on" : "off"
);
if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power))
ret = ws2401_power_on(lcd);
else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power))
ret = ws2401_power_off(lcd);
if (!ret)
lcd->power = power;
return ret;
}
static int ws2401_set_brightness(struct backlight_device *bd)
{
int ret = 0, brightness = bd->props.brightness;
struct ws2401_lcd *lcd = bl_get_data(bd);
dev_dbg(&bd->dev, "lcd set brightness called with %d\n", brightness);
if (brightness < MIN_SUPP_BRIGHTNESS ||
brightness > bd->props.max_brightness) {
dev_err(&bd->dev, "lcd brightness should be %d to %d.\n",
MIN_SUPP_BRIGHTNESS, bd->props.max_brightness);
return -EINVAL;
}
mutex_lock(&lcd->lock);
if (brightness) {
brightness = brightness / (MAX_REQ_BRIGHTNESS/MAX_SUPP_BRIGHTNESS);
if (brightness >= MAX_SUPP_BRIGHTNESS)
brightness = MAX_SUPP_BRIGHTNESS - 1;
if (!lcd->pd->no_bl_ctrl) {
if (POWER_IS_ON(lcd->power)) {
ret = ws2401_update_brightness(lcd->mdd, brightness);
if (ret) {
dev_err(&bd->dev, "lcd brightness setting failed.\n");
return -EIO;
}
}
}
}
lcd->current_brightness = brightness;
mutex_unlock(&lcd->lock);
return ret;
}