1 files changed, 76 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0044-DSS2-add-sysfs-entry-for-seting-the-rotate-type.patch b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0044-DSS2-add-sysfs-entry-for-seting-the-rotate-type.patch
new file mode 100644
index 0000000000..32def9e8d5
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0044-DSS2-add-sysfs-entry-for-seting-the-rotate-type.patch
@@ -0,0 +1,76 @@
+From a9b3500bd14609750a2337e866e1df62627c1bac Mon Sep 17 00:00:00 2001
+From: Imre Deak <imre.deak@nokia.com>
+Date: Mon, 20 Apr 2009 14:55:33 +0200
+Subject: [PATCH] DSS2: add sysfs entry for seting the rotate type
+This can help in utilizing VRAM memory better. Since with VRFB rotation
+we waste a lot of physical memory due to the VRFB HW design, provide the
+possibility to turn it off and free the extra memory for the use by other
+planes for example.
+---
+ drivers/video/omap2/omapfb/omapfb-sysfs.c |   42 ++++++++++++++++++++++++++++-
+ 1 files changed, 41 insertions(+), 1 deletions(-)
+diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c
+index 2c88718..4e3da42 100644
+--- a/drivers/video/omap2/omapfb/omapfb-sysfs.c
+++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c
+@@ -43,6 +43,46 @@ static ssize_t show_rotate_type(struct device *dev,
+        return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->rotation_type);
+ }
+ 
+static ssize_t store_rotate_type(struct device *dev,
+               struct device_attribute *attr,
+               const char *buf, size_t count)
+{
+       struct fb_info *fbi = dev_get_drvdata(dev);
+       struct omapfb_info *ofbi = FB2OFB(fbi);
+       struct omapfb2_device *fbdev = ofbi->fbdev;
+       enum omap_dss_rotation_type rot_type;
+       int r;
+
+       rot_type = simple_strtoul(buf, NULL, 0);
+
+       if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB)
+               return -EINVAL;
+
+       omapfb_lock(fbdev);
+
+       r = 0;
+       if (rot_type == ofbi->rotation_type)
+               goto out;
+
+       r = -EBUSY;
+       if (ofbi->region.size)
+               goto out;
+
+       ofbi->rotation_type = rot_type;
+
+       /*
+        * Since the VRAM for this FB is not allocated at the moment we don't need to
+        * do any further parameter checking at this point.
+        */
+
+       r = count;
+out:
+       omapfb_unlock(fbdev);
+
+       return r;
+}
+
+
+ static ssize_t show_mirror(struct device *dev,
+                struct device_attribute *attr, char *buf)
+ {
+@@ -327,7 +367,7 @@ static ssize_t show_virt(struct device *dev,
+ }
+ 
+ static struct device_attribute omapfb_attrs[] = {
+-       __ATTR(rotate_type, S_IRUGO, show_rotate_type, NULL),
+       __ATTR(rotate_type, S_IRUGO | S_IWUSR, show_rotate_type, store_rotate_type),
+        __ATTR(mirror, S_IRUGO | S_IWUSR, show_mirror, store_mirror),
+        __ATTR(size, S_IRUGO | S_IWUSR, show_size, store_size),
+        __ATTR(overlays, S_IRUGO | S_IWUSR, show_overlays, store_overlays),
+-- 
+1.5.6.5

diff --git a/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0044-DSS2-add-sysfs-entry-for-seting-the-rotate-type.patch b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0044-DSS2-add-sysfs-entry-for-seting-the-rotate-type.patch new file mode 100644 index 0000000000..32def9e8d5 --- /dev/null +++ b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0044-DSS2-add-sysfs-entry-for-seting-the-rotate-type.patch
@@ -0,0 +1,76 @@
	1	From a9b3500bd14609750a2337e866e1df62627c1bac Mon Sep 17 00:00:00 2001
	2	From: Imre Deak <imre.deak@nokia.com>
	3	Date: Mon, 20 Apr 2009 14:55:33 +0200
	4	Subject: [PATCH] DSS2: add sysfs entry for seting the rotate type
	5
	6	This can help in utilizing VRAM memory better. Since with VRFB rotation
	7	we waste a lot of physical memory due to the VRFB HW design, provide the
	8	possibility to turn it off and free the extra memory for the use by other
	9	planes for example.
	10	---
	11	drivers/video/omap2/omapfb/omapfb-sysfs.c \| 42 ++++++++++++++++++++++++++++-
	12	1 files changed, 41 insertions(+), 1 deletions(-)
	13
	14	diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c
	15	index 2c88718..4e3da42 100644
	16	--- a/drivers/video/omap2/omapfb/omapfb-sysfs.c
	17	+++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c
	18	@@ -43,6 +43,46 @@ static ssize_t show_rotate_type(struct device *dev,
	19	return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->rotation_type);
	20	}
	21
	22	+static ssize_t store_rotate_type(struct device *dev,
	23	+ struct device_attribute *attr,
	24	+ const char *buf, size_t count)
	25	+{
	26	+ struct fb_info *fbi = dev_get_drvdata(dev);
	27	+ struct omapfb_info *ofbi = FB2OFB(fbi);
	28	+ struct omapfb2_device *fbdev = ofbi->fbdev;
	29	+ enum omap_dss_rotation_type rot_type;
	30	+ int r;
	31	+
	32	+ rot_type = simple_strtoul(buf, NULL, 0);
	33	+
	34	+ if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB)
	35	+ return -EINVAL;
	36	+
	37	+ omapfb_lock(fbdev);
	38	+
	39	+ r = 0;
	40	+ if (rot_type == ofbi->rotation_type)
	41	+ goto out;
	42	+
	43	+ r = -EBUSY;
	44	+ if (ofbi->region.size)
	45	+ goto out;
	46	+
	47	+ ofbi->rotation_type = rot_type;
	48	+
	49	+ /*
	50	+ * Since the VRAM for this FB is not allocated at the moment we don't need to
	51	+ * do any further parameter checking at this point.
	52	+ */
	53	+
	54	+ r = count;
	55	+out:
	56	+ omapfb_unlock(fbdev);
	57	+
	58	+ return r;
	59	+}
	60	+
	61	+
	62	static ssize_t show_mirror(struct device *dev,
	63	struct device_attribute attr, char buf)
	64	{
	65	@@ -327,7 +367,7 @@ static ssize_t show_virt(struct device *dev,
	66	}
	67
	68	static struct device_attribute omapfb_attrs[] = {
	69	- __ATTR(rotate_type, S_IRUGO, show_rotate_type, NULL),
	70	+ __ATTR(rotate_type, S_IRUGO \| S_IWUSR, show_rotate_type, store_rotate_type),
	71	__ATTR(mirror, S_IRUGO \| S_IWUSR, show_mirror, store_mirror),
	72	__ATTR(size, S_IRUGO \| S_IWUSR, show_size, store_size),
	73	__ATTR(overlays, S_IRUGO \| S_IWUSR, show_overlays, store_overlays),
	74	--
	75	1.5.6.5
	76