[oe-commits] Koen Kooi : linux-omap git: add patch to fix red-tint on omap3evm screens

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Module: openembedded.git
Branch: shared/xorg-7.4-update
Commit: 12f279b37d07e82dadd4e51642cfceb80ccbbce9
URL:    http://gitweb.openembedded.net/?p=openembedded.git&a=commit;h=12f279b37d07e82dadd4e51642cfceb80ccbbce9

Author: Koen Kooi <koen at openembedded.org>
Date:   Sun Nov  9 10:28:16 2008 +0100

linux-omap git: add patch to fix red-tint on omap3evm screens

---

 .../linux-omap/omap3evm/omap3evm-lcd-redtint.diff  |   66 ++++++++++++++++++++
 packages/linux/linux-omap_git.bb                   |    3 +-
 2 files changed, 68 insertions(+), 1 deletions(-)

diff --git a/packages/linux/linux-omap/omap3evm/omap3evm-lcd-redtint.diff b/packages/linux/linux-omap/omap3evm/omap3evm-lcd-redtint.diff
new file mode 100644
index 0000000..54ea3c9
--- /dev/null
+++ b/packages/linux/linux-omap/omap3evm/omap3evm-lcd-redtint.diff
@@ -0,0 +1,66 @@
+Message-ID: <c656a4d20809270046u341aec27k6d896d4b42e799d4 at mail.gmail.com>
+Date: 	Sat, 27 Sep 2008 03:46:18 -0400
+From: "arun c" <arun.edarath at gmail.com>
+To: "Daniel Schaeffer" <daniel.schaeffer at timesys.com>
+Subject: Re: OMAP3EVM LCD red tint
+
+Hi Daniel Schaeffer
+
+On Fri, Sep 26, 2008 at 4:20 PM, Daniel Schaeffer
+<daniel.schaeffer at timesys.com> wrote:
+> Has anyone looked into why the LCD display on the OMAP3EVM is always tinted
+> red? I created a couple of color test images that I cat'ed to /dev/fb and it
+> looks like the blue color channel is completely ignored.  I was testing on
+> v2.6.26-omap2 but is doesn't look like there have been any changes to the fb
+> driver since then so I'm assuming the issue is also present in the head of
+> the git tree.
+>
+> Regards,
+>
+> Daniel Schaeffer
+>
+
+Try the patch below(Remember that you may have to manually edit because
+this patch is against current HEAD)
+
+
+diff --git a/drivers/video/omap/lcd_omap3evm.c
+b/drivers/video/omap/lcd_omap3evm.c
+index a564ca5..821bafe 100644
+--- a/drivers/video/omap/lcd_omap3evm.c
++++ b/drivers/video/omap/lcd_omap3evm.c
+@@ -44,6 +44,8 @@
+ #define ENABLE_VDAC_DEV_GRP	0x20
+ #define ENABLE_VPLL2_DEDICATED	0x05
+ #define ENABLE_VPLL2_DEV_GRP	0xE0
++#define TWL4030_VPLL2_DEV_GRP	0x33
++#define TWL4030_VPLL2_DEDICATED	0x36
+
+ #define TWL_LED_LEDEN		0x00
+ #define TWL_PWMA_PWMAON		0x00
+@@ -86,12 +88,24 @@ static void omap3evm_panel_cleanup(struct lcd_panel *panel)
+
+ static int omap3evm_panel_enable(struct lcd_panel *panel)
+ {
++	if (omap_rev > OMAP3430_REV_ES1_0) {
++		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
++			ENABLE_VPLL2_DEDICATED, TWL4030_VPLL2_DEDICATED);
++		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
++			ENABLE_VPLL2_DEV_GRP, TWL4030_VPLL2_DEV_GRP);
++	}
+ 	omap_set_gpio_dataout(LCD_PANEL_ENABLE_GPIO, 0);
+ 	return 0;
+ }
+
+ static void omap3evm_panel_disable(struct lcd_panel *panel)
+ {
++	if (omap_rev > OMAP3430_REV_ES1_0) {
++		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
++			TWL4030_VPLL2_DEDICATED);
++		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
++			TWL4030_VPLL2_DEV_GRP);
++	}
+ 	omap_set_gpio_dataout(LCD_PANEL_ENABLE_GPIO, 1);
+ }
+
+
diff --git a/packages/linux/linux-omap_git.bb b/packages/linux/linux-omap_git.bb
index 7268424..6602922 100644
--- a/packages/linux/linux-omap_git.bb
+++ b/packages/linux/linux-omap_git.bb
@@ -10,7 +10,7 @@ SRCREV = "f7429fd378a29cf6947c2613e0fd6e6e36165167"
 
 PV = "2.6.27+2.6.28-rc3+${PR}+gitr${SRCREV}"
 #PV = "2.6.27+${PR}+gitr${SRCREV}"
-PR = "r0"
+PR = "r1"
 
 SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git;protocol=git \
 	   file://defconfig"
@@ -50,6 +50,7 @@ SRC_URI_append_beagleboard = " file://logo_linux_clut224.ppm \
 
 SRC_URI_append_omap3evm = " \
 	file://evm-mcspi-ts.diff;patch=1 \
+	file://omap3evm-lcd-redtint.diff;patch=1 \
 "
 
 S = "${WORKDIR}/git"