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-rw-r--r--drivers/video/backlight/Kconfig4
-rw-r--r--drivers/video/backlight/corgi_bl.c31
2 files changed, 15 insertions, 20 deletions
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 9d996f2c10d..b895eaaa73f 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -43,11 +43,11 @@ config LCD_DEVICE
default y
config BACKLIGHT_CORGI
- tristate "Sharp Corgi Backlight Driver (SL-C7xx Series)"
+ tristate "Sharp Corgi Backlight Driver (SL Series)"
depends on BACKLIGHT_DEVICE && PXA_SHARPSL
default y
help
- If you have a Sharp Zaurus SL-C7xx, say y to enable the
+ If you have a Sharp Zaurus SL-C7xx, SL-Cxx00 or SL-6000x say y to enable the
backlight driver.
config BACKLIGHT_HP680
diff --git a/drivers/video/backlight/corgi_bl.c b/drivers/video/backlight/corgi_bl.c
index f86213b4a8f..2ebbfd95145 100644
--- a/drivers/video/backlight/corgi_bl.c
+++ b/drivers/video/backlight/corgi_bl.c
@@ -1,7 +1,7 @@
/*
- * Backlight Driver for Sharp Corgi
+ * Backlight Driver for Sharp Zaurus Handhelds (various models)
*
- * Copyright (c) 2004-2005 Richard Purdie
+ * Copyright (c) 2004-2006 Richard Purdie
*
* Based on Sharp's 2.4 Backlight Driver
*
@@ -15,21 +15,17 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
-#include <linux/spinlock.h>
+#include <linux/mutex.h>
#include <linux/fb.h>
#include <linux/backlight.h>
-
#include <asm/arch/sharpsl.h>
#include <asm/hardware/sharpsl_pm.h>
-#define CORGI_DEFAULT_INTENSITY 0x1f
-#define CORGI_LIMIT_MASK 0x0b
-
static int corgibl_intensity;
-static void (*corgibl_mach_set_intensity)(int intensity);
-static spinlock_t bl_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_MUTEX(bl_mutex);
static struct backlight_properties corgibl_data;
static struct backlight_device *corgi_backlight_device;
+static struct corgibl_machinfo *bl_machinfo;
static unsigned long corgibl_flags;
#define CORGIBL_SUSPENDED 0x01
@@ -37,7 +33,6 @@ static unsigned long corgibl_flags;
static int corgibl_send_intensity(struct backlight_device *bd)
{
- unsigned long flags;
void (*corgi_kick_batt)(void);
int intensity = bd->props->brightness;
@@ -48,13 +43,11 @@ static int corgibl_send_intensity(struct backlight_device *bd)
if (corgibl_flags & CORGIBL_SUSPENDED)
intensity = 0;
if (corgibl_flags & CORGIBL_BATTLOW)
- intensity &= CORGI_LIMIT_MASK;
-
- spin_lock_irqsave(&bl_lock, flags);
-
- corgibl_mach_set_intensity(intensity);
+ intensity &= bl_machinfo->limit_mask;
- spin_unlock_irqrestore(&bl_lock, flags);
+ mutex_lock(&bl_mutex);
+ bl_machinfo->set_bl_intensity(intensity);
+ mutex_unlock(&bl_mutex);
corgibl_intensity = intensity;
@@ -122,8 +115,10 @@ static int __init corgibl_probe(struct platform_device *pdev)
{
struct corgibl_machinfo *machinfo = pdev->dev.platform_data;
+ bl_machinfo = machinfo;
corgibl_data.max_brightness = machinfo->max_intensity;
- corgibl_mach_set_intensity = machinfo->set_bl_intensity;
+ if (!machinfo->limit_mask)
+ machinfo->limit_mask = -1;
corgi_backlight_device = backlight_device_register ("corgi-bl",
NULL, &corgibl_data);
@@ -131,7 +126,7 @@ static int __init corgibl_probe(struct platform_device *pdev)
return PTR_ERR (corgi_backlight_device);
corgibl_data.power = FB_BLANK_UNBLANK;
- corgibl_data.brightness = CORGI_DEFAULT_INTENSITY;
+ corgibl_data.brightness = machinfo->default_intensity;
corgibl_send_intensity(corgi_backlight_device);
printk("Corgi Backlight Driver Initialized.\n");