backlight: Convert from struct class_device to struct device

[safe/jmp/linux-2.6] / drivers / video / nvidia / nv_backlight.c

diff --git a/drivers/video/nvidia/nv_backlight.c b/drivers/video/nvidia/nv_backlight.c
index 695b6bf..443e3c8 100644 (file)
--- a/drivers/video/nvidia/nv_backlight.c
+++ b/drivers/video/nvidia/nv_backlight.c
@@ -12,15 +12,15 @@
 #include <linux/backlight.h>
 #include <linux/fb.h>
 #include <linux/pci.h>
-#include "nv_local.h"
-#include "nv_type.h"
-#include "nv_proto.h"
 
 #ifdef CONFIG_PMAC_BACKLIGHT
 #include <asm/backlight.h>
-#include <asm/machdep.h>
 #endif
 
+#include "nv_local.h"
+#include "nv_type.h"
+#include "nv_proto.h"
+
 /* We do not have any information about which values are allowed, thus
  * we used safe values.
  */
@@ -28,9 +28,6 @@
 #define MAX_LEVEL 0x534
 #define LEVEL_STEP ((MAX_LEVEL - MIN_LEVEL) / FB_BACKLIGHT_MAX)
 
-static struct backlight_properties nvidia_bl_data;
-
-/* Call with fb_info->bl_mutex held */
 static int nvidia_bl_get_level_brightness(struct nvidia_par *par,
                int level)
 {
@@ -38,6 +35,7 @@ static int nvidia_bl_get_level_brightness(struct nvidia_par *par,
        int nlevel;
 
        /* Get and convert the value */
+       /* No locking of bl_curve since we read a single value */
        nlevel = MIN_LEVEL + info->bl_curve[level] * LEVEL_STEP;
 
        if (nlevel < 0)
@@ -50,21 +48,20 @@ static int nvidia_bl_get_level_brightness(struct nvidia_par *par,
        return nlevel;
 }
 
-/* Call with fb_info->bl_mutex held */
-static int __nvidia_bl_update_status(struct backlight_device *bd)
+static int nvidia_bl_update_status(struct backlight_device *bd)
 {
-       struct nvidia_par *par = class_get_devdata(&bd->class_dev);
+       struct nvidia_par *par = bl_get_data(bd);
        u32 tmp_pcrt, tmp_pmc, fpcontrol;
        int level;
 
        if (!par->FlatPanel)
                return 0;
 
-       if (bd->props->power != FB_BLANK_UNBLANK ||
-           bd->props->fb_blank != FB_BLANK_UNBLANK)
+       if (bd->props.power != FB_BLANK_UNBLANK ||
+           bd->props.fb_blank != FB_BLANK_UNBLANK)
                level = 0;
        else
-               level = bd->props->brightness;
+               level = bd->props.brightness;
 
        tmp_pmc = NV_RD32(par->PMC, 0x10F0) & 0x0000FFFF;
        tmp_pcrt = NV_RD32(par->PCRTC0, 0x081C) & 0xFFFFFFFC;
@@ -85,28 +82,14 @@ static int __nvidia_bl_update_status(struct backlight_device *bd)
        return 0;
 }
 
-static int nvidia_bl_update_status(struct backlight_device *bd)
-{
-       struct nvidia_par *par = class_get_devdata(&bd->class_dev);
-       struct fb_info *info = pci_get_drvdata(par->pci_dev);
-       int ret;
-
-       mutex_lock(&info->bl_mutex);
-       ret = __nvidia_bl_update_status(bd);
-       mutex_unlock(&info->bl_mutex);
-
-       return ret;
-}
-
 static int nvidia_bl_get_brightness(struct backlight_device *bd)
 {
-       return bd->props->brightness;
+       return bd->props.brightness;
 }
 
-static struct backlight_properties nvidia_bl_data = {
+static struct backlight_ops nvidia_bl_ops = {
        .get_brightness = nvidia_bl_get_brightness,
        .update_status  = nvidia_bl_update_status,
-       .max_brightness = (FB_BACKLIGHT_LEVELS - 1),
 };
 
 void nvidia_bl_init(struct nvidia_par *par)
@@ -126,31 +109,23 @@ void nvidia_bl_init(struct nvidia_par *par)
 
        snprintf(name, sizeof(name), "nvidiabl%d", info->node);
 
-       bd = backlight_device_register(name, info->dev, par, &nvidia_bl_data);
+       bd = backlight_device_register(name, info->dev, par, &nvidia_bl_ops);
        if (IS_ERR(bd)) {
                info->bl_dev = NULL;
                printk(KERN_WARNING "nvidia: Backlight registration failed\n");
                goto error;
        }
 
-       mutex_lock(&info->bl_mutex);
        info->bl_dev = bd;
        fb_bl_default_curve(info, 0,
                0x158 * FB_BACKLIGHT_MAX / MAX_LEVEL,
                0x534 * FB_BACKLIGHT_MAX / MAX_LEVEL);
-       mutex_unlock(&info->bl_mutex);
 
-       bd->props->brightness = nvidia_bl_data.max_brightness;
-       bd->props->power = FB_BLANK_UNBLANK;
+       bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
+       bd->props.brightness = bd->props.max_brightness;
+       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;
@@ -162,25 +137,8 @@ error:
 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;
 
-#ifdef CONFIG_PMAC_BACKLIGHT
-       mutex_lock(&pmac_backlight_mutex);
-#endif
-
-       mutex_lock(&info->bl_mutex);
-       if (info->bl_dev) {
-#ifdef CONFIG_PMAC_BACKLIGHT
-               if (pmac_backlight == info->bl_dev)
-                       pmac_backlight = NULL;
-#endif
-
-               backlight_device_unregister(info->bl_dev);
-
-               printk("nvidia: Backlight unloaded\n");
-       }
-       mutex_unlock(&info->bl_mutex);
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-       mutex_unlock(&pmac_backlight_mutex);
-#endif
+       backlight_device_unregister(bd);
+       printk("nvidia: Backlight unloaded\n");
 }