1 files changed, 126 insertions, 0 deletions
diff --git a/extras/recipes-kernel/linux/linux-omap-psp-2.6.32/omap3-touchbook/0014-backlight-add-PWM-support.patch b/extras/recipes-kernel/linux/linux-omap-psp-2.6.32/omap3-touchbook/0014-backlight-add-PWM-support.patch
new file mode 100644
index 00000000..d517f072
--- /dev/null
+++ b/extras/recipes-kernel/linux/linux-omap-psp-2.6.32/omap3-touchbook/0014-backlight-add-PWM-support.patch
@@ -0,0 +1,126 @@
+From cc8cb0d0731c7a0517653e65c754051a69f34c3e Mon Sep 17 00:00:00 2001
+From: Gregoire Gentil <gregoire@gentil.com>
+Date: Wed, 31 Mar 2010 11:14:04 +0200
+Subject: [PATCH 14/17] backlight: add PWM support
+---
+ drivers/video/backlight/backlight.c |   81 +++++++++++++++++++++++++++++++++++
+ include/linux/backlight.h           |    3 +
+ 2 files changed, 84 insertions(+), 0 deletions(-)
+diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
+index 7898707..615f40f 100644
+--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
+@@ -226,6 +226,84 @@ static void bl_device_release(struct device *dev)
+        kfree(bd);
+ }
+ 
+static ssize_t backlight_show_boost(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       struct backlight_device *bd = to_backlight_device(dev);
+       return sprintf(buf, "%u\n", bd->props.boost);
+}
+
+static ssize_t backlight_store_boost(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+       unsigned long i;
+       struct backlight_device *bd = to_backlight_device(dev);
+
+        if (strict_strtoul(buf, 10, &i))
+               return -EINVAL;
+
+       mutex_lock(&bd->ops_lock);
+       if (bd->ops)
+       {
+               if (i)
+                       bd->props.boost = 1;
+               else
+                       bd->props.boost = 0;
+               backlight_update_status(bd);
+       }
+       mutex_unlock(&bd->ops_lock);
+
+       return count;
+}
+
+static ssize_t backlight_show_pwm_fq(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       struct backlight_device *bd = to_backlight_device(dev);
+       return sprintf(buf, "%u\n", bd->props.pwm_fq);
+}
+
+static ssize_t backlight_store_pwm_fq(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+       unsigned long i;
+       struct backlight_device *bd = to_backlight_device(dev);
+
+        if (strict_strtoul(buf, 10, &i))
+               return -EINVAL;
+
+       mutex_lock(&bd->ops_lock);
+       if (bd->ops)
+       {
+               bd->props.pwm_fq = i;
+               backlight_update_status(bd);
+       }
+       mutex_unlock(&bd->ops_lock);
+
+       return count;
+}
+
+static ssize_t backlight_show_min_duty(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       struct backlight_device *bd = to_backlight_device(dev);
+       return sprintf(buf, "%u\n", bd->props.min_duty);
+}
+
+static ssize_t backlight_store_min_duty(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+       unsigned long i;
+       struct backlight_device *bd = to_backlight_device(dev);
+
+        if (strict_strtoul(buf, 10, &i))
+               return -EINVAL;
+
+       mutex_lock(&bd->ops_lock);
+       if (bd->ops)
+       {
+               bd->props.min_duty = i;
+               backlight_update_status(bd);
+       }
+       mutex_unlock(&bd->ops_lock);
+
+       return count;
+}
+
+ static struct device_attribute bl_device_attributes[] = {
+        __ATTR(bl_power, 0644, backlight_show_power, backlight_store_power),
+        __ATTR(brightness, 0666, backlight_show_brightness,
+@@ -233,6 +311,9 @@ static struct device_attribute bl_device_attributes[] = {
+        __ATTR(actual_brightness, 0444, backlight_show_actual_brightness,
+                     NULL),
+        __ATTR(max_brightness, 0444, backlight_show_max_brightness, NULL),
+       __ATTR(boost, 0666, backlight_show_boost, backlight_store_boost),
+       __ATTR(pwm_fq, 0666, backlight_show_pwm_fq, backlight_store_pwm_fq),
+       __ATTR(min_duty, 0666, backlight_show_min_duty, backlight_store_min_duty),
+        __ATTR_NULL,
+ };
+ 
+diff --git a/include/linux/backlight.h b/include/linux/backlight.h
+index 0f5f578..f3a9b9f 100644
+--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
+@@ -64,6 +64,9 @@ struct backlight_properties {
+        int fb_blank;
+        /* Flags used to signal drivers of state changes */
+        /* Upper 4 bits are reserved for driver internal use */
+       int boost;
+       int pwm_fq;
+       int min_duty;
+        unsigned int state;
+ 
+ #define BL_CORE_SUSPENDED      (1 << 0)        /* backlight is suspended */
+-- 
+1.6.6.1

diff --git a/extras/recipes-kernel/linux/linux-omap-psp-2.6.32/omap3-touchbook/0014-backlight-add-PWM-support.patch b/extras/recipes-kernel/linux/linux-omap-psp-2.6.32/omap3-touchbook/0014-backlight-add-PWM-support.patch new file mode 100644 index 00000000..d517f072 --- /dev/null +++ b/extras/recipes-kernel/linux/linux-omap-psp-2.6.32/omap3-touchbook/0014-backlight-add-PWM-support.patch
@@ -0,0 +1,126 @@
	1	From cc8cb0d0731c7a0517653e65c754051a69f34c3e Mon Sep 17 00:00:00 2001
	2	From: Gregoire Gentil <gregoire@gentil.com>
	3	Date: Wed, 31 Mar 2010 11:14:04 +0200
	4	Subject: [PATCH 14/17] backlight: add PWM support
	5
	6	---
	7	drivers/video/backlight/backlight.c \| 81 +++++++++++++++++++++++++++++++++++
	8	include/linux/backlight.h \| 3 +
	9	2 files changed, 84 insertions(+), 0 deletions(-)
	10
	11	diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
	12	index 7898707..615f40f 100644
	13	--- a/drivers/video/backlight/backlight.c
	14	+++ b/drivers/video/backlight/backlight.c
	15	@@ -226,6 +226,84 @@ static void bl_device_release(struct device *dev)
	16	kfree(bd);
	17	}
	18
	19	+static ssize_t backlight_show_boost(struct device dev, struct device_attribute attr, char *buf)
	20	+{
	21	+ struct backlight_device *bd = to_backlight_device(dev);
	22	+ return sprintf(buf, "%u\n", bd->props.boost);
	23	+}
	24	+
	25	+static ssize_t backlight_store_boost(struct device dev, struct device_attribute attr, const char *buf, size_t count)
	26	+{
	27	+ unsigned long i;
	28	+ struct backlight_device *bd = to_backlight_device(dev);
	29	+
	30	+ if (strict_strtoul(buf, 10, &i))
	31	+ return -EINVAL;
	32	+
	33	+ mutex_lock(&bd->ops_lock);
	34	+ if (bd->ops)
	35	+ {
	36	+ if (i)
	37	+ bd->props.boost = 1;
	38	+ else
	39	+ bd->props.boost = 0;
	40	+ backlight_update_status(bd);
	41	+ }
	42	+ mutex_unlock(&bd->ops_lock);
	43	+
	44	+ return count;
	45	+}
	46	+
	47	+static ssize_t backlight_show_pwm_fq(struct device dev, struct device_attribute attr, char *buf)
	48	+{
	49	+ struct backlight_device *bd = to_backlight_device(dev);
	50	+ return sprintf(buf, "%u\n", bd->props.pwm_fq);
	51	+}
	52	+
	53	+static ssize_t backlight_store_pwm_fq(struct device dev, struct device_attribute attr, const char *buf, size_t count)
	54	+{
	55	+ unsigned long i;
	56	+ struct backlight_device *bd = to_backlight_device(dev);
	57	+
	58	+ if (strict_strtoul(buf, 10, &i))
	59	+ return -EINVAL;
	60	+
	61	+ mutex_lock(&bd->ops_lock);
	62	+ if (bd->ops)
	63	+ {
	64	+ bd->props.pwm_fq = i;
	65	+ backlight_update_status(bd);
	66	+ }
	67	+ mutex_unlock(&bd->ops_lock);
	68	+
	69	+ return count;
	70	+}
	71	+
	72	+static ssize_t backlight_show_min_duty(struct device dev, struct device_attribute attr, char *buf)
	73	+{
	74	+ struct backlight_device *bd = to_backlight_device(dev);
	75	+ return sprintf(buf, "%u\n", bd->props.min_duty);
	76	+}
	77	+
	78	+static ssize_t backlight_store_min_duty(struct device dev, struct device_attribute attr, const char *buf, size_t count)
	79	+{
	80	+ unsigned long i;
	81	+ struct backlight_device *bd = to_backlight_device(dev);
	82	+
	83	+ if (strict_strtoul(buf, 10, &i))
	84	+ return -EINVAL;
	85	+
	86	+ mutex_lock(&bd->ops_lock);
	87	+ if (bd->ops)
	88	+ {
	89	+ bd->props.min_duty = i;
	90	+ backlight_update_status(bd);
	91	+ }
	92	+ mutex_unlock(&bd->ops_lock);
	93	+
	94	+ return count;
	95	+}
	96	+
	97	static struct device_attribute bl_device_attributes[] = {
	98	__ATTR(bl_power, 0644, backlight_show_power, backlight_store_power),
	99	__ATTR(brightness, 0666, backlight_show_brightness,
	100	@@ -233,6 +311,9 @@ static struct device_attribute bl_device_attributes[] = {
	101	__ATTR(actual_brightness, 0444, backlight_show_actual_brightness,
	102	NULL),
	103	__ATTR(max_brightness, 0444, backlight_show_max_brightness, NULL),
	104	+ __ATTR(boost, 0666, backlight_show_boost, backlight_store_boost),
	105	+ __ATTR(pwm_fq, 0666, backlight_show_pwm_fq, backlight_store_pwm_fq),
	106	+ __ATTR(min_duty, 0666, backlight_show_min_duty, backlight_store_min_duty),
	107	__ATTR_NULL,
	108	};
	109
	110	diff --git a/include/linux/backlight.h b/include/linux/backlight.h
	111	index 0f5f578..f3a9b9f 100644
	112	--- a/include/linux/backlight.h
	113	+++ b/include/linux/backlight.h
	114	@@ -64,6 +64,9 @@ struct backlight_properties {
	115	int fb_blank;
	116	/* Flags used to signal drivers of state changes */
	117	/* Upper 4 bits are reserved for driver internal use */
	118	+ int boost;
	119	+ int pwm_fq;
	120	+ int min_duty;
	121	unsigned int state;
	122
	123	#define BL_CORE_SUSPENDED (1 << 0) /* backlight is suspended */
	124	--
	125	1.6.6.1
	126