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backlight: Clean up pmac_backlight handling

Browse source 
Move the setting/unsetting of pmac_backlight into the
backlight core instead of doing it in each driver.

Signed-off-by: Richard Purdie <[email protected]>
This commit is contained in:
Richard Purdie 2007-02-10 15:04:08 +00:00
commit 321709c599
8 changed files with 34 additions and 101 deletions
Download patch file Download diff file Expand all files Collapse all files

20
drivers/video/aty/aty128fb.c
View file

@ -1829,13 +1829,6 @@ static void aty128_bl_init(struct aty128fb_par *par)
bd->props->power = FB_BLANK_UNBLANK;
backlight_update_status(bd);
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (!pmac_backlight)
pmac_backlight = bd;
mutex_unlock(&pmac_backlight_mutex);
#endif
printk("aty128: Backlight initialized (%s)\n", name);
return;
@ -1846,17 +1839,8 @@ error:
static void aty128_bl_exit(struct backlight_device *bd)
{
if (bd) {
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (pmac_backlight == bd)
pmac_backlight = NULL;
mutex_unlock(&pmac_backlight_mutex);
#endif
backlight_device_unregister(bd);
printk("aty128: Backlight unloaded\n");
}
backlight_device_unregister(bd);
printk("aty128: Backlight unloaded\n");
}
#endif /* CONFIG_FB_ATY128_BACKLIGHT */

20
drivers/video/aty/atyfb_base.c
View file

@ -2198,13 +2198,6 @@ static void aty_bl_init(struct atyfb_par *par)
bd->props->power = FB_BLANK_UNBLANK;
backlight_update_status(bd);
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (!pmac_backlight)
pmac_backlight = bd;
mutex_unlock(&pmac_backlight_mutex);
#endif
printk("aty: Backlight initialized (%s)\n", name);
return;
@ -2215,17 +2208,8 @@ error:
static void aty_bl_exit(struct backlight_device *bd)
{
if (bd) {
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (pmac_backlight == bd)
pmac_backlight = NULL;
mutex_unlock(&pmac_backlight_mutex);
#endif
backlight_device_unregister(bd);
printk("aty: Backlight unloaded\n");
}
backlight_device_unregister(bd);
printk("aty: Backlight unloaded\n");
}
#endif /* CONFIG_FB_ATY_BACKLIGHT */

13
drivers/video/aty/radeon_backlight.c
View file

@ -192,13 +192,6 @@ void radeonfb_bl_init(struct radeonfb_info *rinfo)
bd->props->power = FB_BLANK_UNBLANK;
backlight_update_status(bd);
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (!pmac_backlight)
pmac_backlight = bd;
mutex_unlock(&pmac_backlight_mutex);
#endif
printk("radeonfb: Backlight initialized (%s)\n", name);
return;
@ -215,12 +208,6 @@ void radeonfb_bl_exit(struct radeonfb_info *rinfo)
if (bd) {
struct radeon_bl_privdata *pdata;
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (pmac_backlight == bd)
pmac_backlight = NULL;
mutex_unlock(&pmac_backlight_mutex);
#endif
pdata = class_get_devdata(&bd->class_dev);
backlight_device_unregister(bd);
kfree(pdata);

17
drivers/video/backlight/backlight.c
View file

@ -14,6 +14,9 @@
#include <linux/err.h>
#include <linux/fb.h>
#ifdef CONFIG_PMAC_BACKLIGHT
#include <asm/backlight.h>
#endif
#if defined(CONFIG_FB) || (defined(CONFIG_FB_MODULE) && \
defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE))
@ -262,6 +265,13 @@ struct backlight_device *backlight_device_register(const char *name,
}
}
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (!pmac_backlight)
pmac_backlight = new_bd;
mutex_unlock(&pmac_backlight_mutex);
#endif
return new_bd;
}
EXPORT_SYMBOL(backlight_device_register);
@ -281,6 +291,13 @@ void backlight_device_unregister(struct backlight_device *bd)
pr_debug("backlight_device_unregister: name=%s\n", bd->class_dev.class_id);
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (pmac_backlight == bd)
pmac_backlight = NULL;
mutex_unlock(&pmac_backlight_mutex);
#endif
for (i = 0; i < ARRAY_SIZE(bl_class_device_attributes); i++)
class_device_remove_file(&bd->class_dev,
&bl_class_device_attributes[i]);

25
drivers/video/nvidia/nv_backlight.c
View file

@ -16,11 +16,6 @@
#include "nv_type.h"
#include "nv_proto.h"
#ifdef CONFIG_PMAC_BACKLIGHT
#include <asm/backlight.h>
#include <asm/machdep.h>
#endif
/* We do not have any information about which values are allowed, thus
* we used safe values.
*/
@ -128,13 +123,6 @@ void nvidia_bl_init(struct nvidia_par *par)
bd->props->power = FB_BLANK_UNBLANK;
backlight_update_status(bd);
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (!pmac_backlight)
pmac_backlight = bd;
mutex_unlock(&pmac_backlight_mutex);
#endif
printk("nvidia: Backlight initialized (%s)\n", name);
return;
@ -148,15 +136,6 @@ void nvidia_bl_exit(struct nvidia_par *par)
struct fb_info *info = pci_get_drvdata(par->pci_dev);
struct backlight_device *bd = info->bl_dev;
if (bd) {
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (pmac_backlight == bd)
pmac_backlight = NULL;
mutex_unlock(&pmac_backlight_mutex);
#endif
backlight_device_unregister(bd);
printk("nvidia: Backlight unloaded\n");
}
backlight_device_unregister(bd);
printk("nvidia: Backlight unloaded\n");
}

20
drivers/video/riva/fbdev.c
View file

@ -371,13 +371,6 @@ static void riva_bl_init(struct riva_par *par)
bd->props->power = FB_BLANK_UNBLANK;
backlight_update_status(bd);
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (!pmac_backlight)
pmac_backlight = bd;
mutex_unlock(&pmac_backlight_mutex);
#endif
printk("riva: Backlight initialized (%s)\n", name);
return;
@ -390,17 +383,8 @@ static void riva_bl_exit(struct fb_info *info)
{
struct backlight_device *bd = info->bl_dev;
if (bd) {
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (pmac_backlight == bd)
pmac_backlight = NULL;
mutex_unlock(&pmac_backlight_mutex);
#endif
backlight_device_unregister(bd);
printk("riva: Backlight unloaded\n");
}
backlight_device_unregister(bd);
printk("riva: Backlight unloaded\n");
}
#else
static inline void riva_bl_init(struct riva_par *par) {}