backlight: corgi_lcd: convert corgi_lcd to dev_pm_ops
Instead of using legacy suspend/resume methods, using newer dev_pm_ops structure allows better control over power management. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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3cd4291aaf
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bb07471057
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@ -457,10 +457,10 @@ static const struct backlight_ops corgi_bl_ops = {
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.update_status = corgi_bl_update_status,
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};
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#ifdef CONFIG_PM
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static int corgi_lcd_suspend(struct spi_device *spi, pm_message_t state)
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#ifdef CONFIG_PM_SLEEP
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static int corgi_lcd_suspend(struct device *dev)
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{
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struct corgi_lcd *lcd = spi_get_drvdata(spi);
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struct corgi_lcd *lcd = dev_get_drvdata(dev);
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corgibl_flags |= CORGIBL_SUSPENDED;
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corgi_bl_set_intensity(lcd, 0);
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@ -468,20 +468,19 @@ static int corgi_lcd_suspend(struct spi_device *spi, pm_message_t state)
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return 0;
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}
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static int corgi_lcd_resume(struct spi_device *spi)
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static int corgi_lcd_resume(struct device *dev)
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{
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struct corgi_lcd *lcd = spi_get_drvdata(spi);
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struct corgi_lcd *lcd = dev_get_drvdata(dev);
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corgibl_flags &= ~CORGIBL_SUSPENDED;
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corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_UNBLANK);
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backlight_update_status(lcd->bl_dev);
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return 0;
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}
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#else
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#define corgi_lcd_suspend NULL
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#define corgi_lcd_resume NULL
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#endif
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static SIMPLE_DEV_PM_OPS(corgi_lcd_pm_ops, corgi_lcd_suspend, corgi_lcd_resume);
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static int setup_gpio_backlight(struct corgi_lcd *lcd,
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struct corgi_lcd_platform_data *pdata)
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{
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@ -611,11 +610,10 @@ static struct spi_driver corgi_lcd_driver = {
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.driver = {
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.name = "corgi-lcd",
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.owner = THIS_MODULE,
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.pm = &corgi_lcd_pm_ops,
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},
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.probe = corgi_lcd_probe,
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.remove = corgi_lcd_remove,
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.suspend = corgi_lcd_suspend,
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.resume = corgi_lcd_resume,
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};
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module_spi_driver(corgi_lcd_driver);
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