From mboxrd@z Thu Jan 1 00:00:00 1970 From: Donghwa Lee Date: Tue, 24 Jul 2012 02:19:25 +0000 Subject: [PATCH v2] video: exynos: s6e8ax0: support early fb event of fb_blank() Message-Id: <500E062D.2020307@samsung.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org This patch supports early fb event of fb_blank(). - In case of lcd power off : call early_set_power() interface and lcd power is off. And then framebuffer is blanked. - In case of lcd power on : First, framebuffer is unblanked, and then call set_power() interface to turn lcd on. Signed-off-by: Donghwa Lee Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- Changes of v1: - changes function name from s6e8aa0_early_set_power() to s6e8ax0_early_set_power() drivers/video/exynos/s6e8ax0.c | 32 ++++++++++++++++++++++++++++++++ 1 files changed, 32 insertions(+), 0 deletions(-) diff --git a/drivers/video/exynos/s6e8ax0.c b/drivers/video/exynos/s6e8ax0.c index 05d080b..bfb1919 100644 --- a/drivers/video/exynos/s6e8ax0.c +++ b/drivers/video/exynos/s6e8ax0.c @@ -663,6 +663,37 @@ static int s6e8ax0_gamma_ctrl(struct s6e8ax0 *lcd, int gamma) return 0; } +static int s6e8ax0_early_set_power(struct lcd_device *ld, int power) +{ + struct s6e8ax0 *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 s6e8ax0_set_power(struct lcd_device *ld, int power) { struct s6e8ax0 *lcd = lcd_get_data(ld); @@ -731,6 +762,7 @@ static int s6e8ax0_set_brightness(struct backlight_device *bd) } static struct lcd_ops s6e8ax0_lcd_ops = { + .early_set_power = s6e8ax0_early_set_power, .set_power = s6e8ax0_set_power, .get_power = s6e8ax0_get_power, }; -- 1.7.4.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: dh09.lee@samsung.com (Donghwa Lee) Date: Tue, 24 Jul 2012 11:19:25 +0900 Subject: [PATCH v2] video: exynos: s6e8ax0: support early fb event of fb_blank() Message-ID: <500E062D.2020307@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch supports early fb event of fb_blank(). - In case of lcd power off : call early_set_power() interface and lcd power is off. And then framebuffer is blanked. - In case of lcd power on : First, framebuffer is unblanked, and then call set_power() interface to turn lcd on. Signed-off-by: Donghwa Lee Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- Changes of v1: - changes function name from s6e8aa0_early_set_power() to s6e8ax0_early_set_power() drivers/video/exynos/s6e8ax0.c | 32 ++++++++++++++++++++++++++++++++ 1 files changed, 32 insertions(+), 0 deletions(-) diff --git a/drivers/video/exynos/s6e8ax0.c b/drivers/video/exynos/s6e8ax0.c index 05d080b..bfb1919 100644 --- a/drivers/video/exynos/s6e8ax0.c +++ b/drivers/video/exynos/s6e8ax0.c @@ -663,6 +663,37 @@ static int s6e8ax0_gamma_ctrl(struct s6e8ax0 *lcd, int gamma) return 0; } +static int s6e8ax0_early_set_power(struct lcd_device *ld, int power) +{ + struct s6e8ax0 *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 s6e8ax0_set_power(struct lcd_device *ld, int power) { struct s6e8ax0 *lcd = lcd_get_data(ld); @@ -731,6 +762,7 @@ static int s6e8ax0_set_brightness(struct backlight_device *bd) } static struct lcd_ops s6e8ax0_lcd_ops = { + .early_set_power = s6e8ax0_early_set_power, .set_power = s6e8ax0_set_power, .get_power = s6e8ax0_get_power, }; -- 1.7.4.1