dect/linux-2.6
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backlight: simplify corgi_bl locking

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Now update_status has locking, we can remove the mutex from corgi_bl.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
This commit is contained in:
Richard Purdie 2007-02-10 23:50:39 +00:00
parent 599a52d126
commit 40f5a0ce25
1 changed files with 5 additions and 8 deletions
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13
drivers/video/backlight/corgi_bl.c
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@ -22,7 +22,6 @@
#include <asm/hardware/sharpsl_pm.h>
static int corgibl_intensity;
static DEFINE_MUTEX(bl_mutex);
static struct backlight_properties corgibl_data;
static struct backlight_device *corgi_backlight_device;
static struct corgibl_machinfo *bl_machinfo;
@ -45,9 +44,7 @@ static int corgibl_send_intensity(struct backlight_device *bd)
if (corgibl_flags & CORGIBL_BATTLOW)
intensity &= bl_machinfo->limit_mask;
mutex_lock(&bl_mutex);
bl_machinfo->set_bl_intensity(intensity);
mutex_unlock(&bl_mutex);
corgibl_intensity = intensity;
@ -66,7 +63,7 @@ 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_send_intensity(bd);
backlight_update_status(bd);
return 0;
}
@ -75,7 +72,7 @@ static int corgibl_resume(struct platform_device *pdev)
struct backlight_device *bd = platform_get_drvdata(pdev);
corgibl_flags &= ~CORGIBL_SUSPENDED;
corgibl_send_intensity(bd);
backlight_update_status(bd);
return 0;
}
#else
@ -98,7 +95,7 @@ void corgibl_limit_intensity(int limit)
corgibl_flags |= CORGIBL_BATTLOW;
else
corgibl_flags &= ~CORGIBL_BATTLOW;
corgibl_send_intensity(corgi_backlight_device);
backlight_update_status(corgi_backlight_device);
}
EXPORT_SYMBOL(corgibl_limit_intensity);
@ -126,7 +123,7 @@ static int corgibl_probe(struct platform_device *pdev)
corgi_backlight_device->props.max_brightness = machinfo->max_intensity;
corgi_backlight_device->props.power = FB_BLANK_UNBLANK;
corgi_backlight_device->props.brightness = machinfo->default_intensity;
corgibl_send_intensity(corgi_backlight_device);
backlight_update_status(corgi_backlight_device);
printk("Corgi Backlight Driver Initialized.\n");
return 0;
@ -138,7 +135,7 @@ static int corgibl_remove(struct platform_device *pdev)
corgibl_data.power = 0;
corgibl_data.brightness = 0;
corgibl_send_intensity(bd);
backlight_update_status(bd);
backlight_device_unregister(bd);