diff options
Diffstat (limited to 'drivers/video/backlight/ltv350qv.c')
| -rw-r--r-- | drivers/video/backlight/ltv350qv.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c index 885612cc1008..c919b0fe4cd9 100644 --- a/drivers/video/backlight/ltv350qv.c +++ b/drivers/video/backlight/ltv350qv.c @@ -1,15 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Power control for Samsung LTV350QV Quarter VGA LCD Panel * * Copyright (C) 2006, 2007 Atmel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/delay.h> #include <linux/err.h> -#include <linux/fb.h> #include <linux/init.h> #include <linux/lcd.h> #include <linux/module.h> @@ -18,7 +14,7 @@ #include "ltv350qv.h" -#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) +#define POWER_IS_ON(pwr) ((pwr) <= LCD_POWER_REDUCED) struct ltv350qv { struct spi_device *spi; @@ -30,8 +26,7 @@ struct ltv350qv { /* * The power-on and power-off sequences are taken from the * LTV350QV-F04 data sheet from Samsung. The register definitions are - * taken from the S6F2002 command list also from Samsung. Both - * documents are distributed with the AVR32 Linux BSP CD from Atmel. + * taken from the S6F2002 command list also from Samsung. * * There's still some voodoo going on here, but it's a lot better than * in the first incarnation of the driver where all we had was the raw @@ -221,7 +216,7 @@ static int ltv350qv_get_power(struct lcd_device *ld) return lcd->power; } -static struct lcd_ops ltv_ops = { +static const struct lcd_ops ltv_ops = { .get_power = ltv350qv_get_power, .set_power = ltv350qv_set_power, }; @@ -237,7 +232,7 @@ static int ltv350qv_probe(struct spi_device *spi) return -ENOMEM; lcd->spi = spi; - lcd->power = FB_BLANK_POWERDOWN; + lcd->power = LCD_POWER_OFF; lcd->buffer = devm_kzalloc(&spi->dev, 8, GFP_KERNEL); if (!lcd->buffer) return -ENOMEM; @@ -249,7 +244,7 @@ static int ltv350qv_probe(struct spi_device *spi) lcd->ld = ld; - ret = ltv350qv_power(lcd, FB_BLANK_UNBLANK); + ret = ltv350qv_power(lcd, LCD_POWER_ON); if (ret) return ret; @@ -258,12 +253,11 @@ static int ltv350qv_probe(struct spi_device *spi) return 0; } -static int ltv350qv_remove(struct spi_device *spi) +static void ltv350qv_remove(struct spi_device *spi) { struct ltv350qv *lcd = spi_get_drvdata(spi); - ltv350qv_power(lcd, FB_BLANK_POWERDOWN); - return 0; + ltv350qv_power(lcd, LCD_POWER_OFF); } #ifdef CONFIG_PM_SLEEP @@ -271,14 +265,14 @@ static int ltv350qv_suspend(struct device *dev) { struct ltv350qv *lcd = dev_get_drvdata(dev); - return ltv350qv_power(lcd, FB_BLANK_POWERDOWN); + return ltv350qv_power(lcd, LCD_POWER_OFF); } static int ltv350qv_resume(struct device *dev) { struct ltv350qv *lcd = dev_get_drvdata(dev); - return ltv350qv_power(lcd, FB_BLANK_UNBLANK); + return ltv350qv_power(lcd, LCD_POWER_ON); } #endif @@ -289,7 +283,7 @@ static void ltv350qv_shutdown(struct spi_device *spi) { struct ltv350qv *lcd = spi_get_drvdata(spi); - ltv350qv_power(lcd, FB_BLANK_POWERDOWN); + ltv350qv_power(lcd, LCD_POWER_OFF); } static struct spi_driver ltv350qv_driver = { |