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backlight: Minor code cleanups for corgi_bl.c 

Since people use this code as an example, clean it up to
to use platform_*_drvdata and remove an unneeded function.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
This commit is contained in:
Richard Purdie 2007-02-08 00:32:14 +00:00
Родитель 90968e8ebc
Коммит da7a747125
1 изменённых файлов: 16 добавлений и 14 удалений
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30
drivers/video/backlight/corgi_bl.c
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@ -61,17 +61,21 @@ static int corgibl_send_intensity(struct backlight_device *bd)
} }
#ifdef CONFIG_PM #ifdef CONFIG_PM
static int corgibl_suspend(struct platform_device *dev, pm_message_t state) static int corgibl_suspend(struct platform_device *pdev, pm_message_t state)
{ {
struct backlight_device *bd = platform_get_drvdata(pdev);
corgibl_flags |= CORGIBL_SUSPENDED; corgibl_flags |= CORGIBL_SUSPENDED;
corgibl_send_intensity(corgi_backlight_device); corgibl_send_intensity(bd);
return 0; return 0;
} }
static int corgibl_resume(struct platform_device *dev) static int corgibl_resume(struct platform_device *pdev)
{ {
struct backlight_device *bd = platform_get_drvdata(pdev);
corgibl_flags &= ~CORGIBL_SUSPENDED; corgibl_flags &= ~CORGIBL_SUSPENDED;
corgibl_send_intensity(corgi_backlight_device); corgibl_send_intensity(bd);
return 0; return 0;
} }
#else #else
@ -84,12 +88,6 @@ static int corgibl_get_intensity(struct backlight_device *bd)
return corgibl_intensity; return corgibl_intensity;
} }
static int corgibl_set_intensity(struct backlight_device *bd)
{
corgibl_send_intensity(corgi_backlight_device);
return 0;
}
/* /*
* Called when the battery is low to limit the backlight intensity. * Called when the battery is low to limit the backlight intensity.
* If limit==0 clear any limit, otherwise limit the intensity * If limit==0 clear any limit, otherwise limit the intensity
@ -107,7 +105,7 @@ EXPORT_SYMBOL(corgibl_limit_intensity);
static struct backlight_properties corgibl_data = { static struct backlight_properties corgibl_data = {
.get_brightness = corgibl_get_intensity, .get_brightness = corgibl_get_intensity,
.update_status = corgibl_set_intensity, .update_status = corgibl_send_intensity,
}; };
static int corgibl_probe(struct platform_device *pdev) static int corgibl_probe(struct platform_device *pdev)
@ -124,6 +122,8 @@ static int corgibl_probe(struct platform_device *pdev)
if (IS_ERR (corgi_backlight_device)) if (IS_ERR (corgi_backlight_device))
return PTR_ERR (corgi_backlight_device); return PTR_ERR (corgi_backlight_device);
platform_set_drvdata(pdev, corgi_backlight_device);
corgibl_data.power = FB_BLANK_UNBLANK; corgibl_data.power = FB_BLANK_UNBLANK;
corgibl_data.brightness = machinfo->default_intensity; corgibl_data.brightness = machinfo->default_intensity;
corgibl_send_intensity(corgi_backlight_device); corgibl_send_intensity(corgi_backlight_device);
@ -132,13 +132,15 @@ static int corgibl_probe(struct platform_device *pdev)
return 0; return 0;
} }
static int corgibl_remove(struct platform_device *dev) static int corgibl_remove(struct platform_device *pdev)
{ {
struct backlight_device *bd = platform_get_drvdata(pdev);
corgibl_data.power = 0; corgibl_data.power = 0;
corgibl_data.brightness = 0; corgibl_data.brightness = 0;
corgibl_send_intensity(corgi_backlight_device); corgibl_send_intensity(bd);
backlight_device_unregister(corgi_backlight_device); backlight_device_unregister(bd);
printk("Corgi Backlight Driver Unloaded\n"); printk("Corgi Backlight Driver Unloaded\n");
return 0; return 0;