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Diffstat (limited to 'meta/recipes-kernel/linux/linux-omap-2.6.29/omap3evm/omap3evm-lcd-redtint.diff')
-rw-r--r-- | meta/recipes-kernel/linux/linux-omap-2.6.29/omap3evm/omap3evm-lcd-redtint.diff | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux/linux-omap-2.6.29/omap3evm/omap3evm-lcd-redtint.diff b/meta/recipes-kernel/linux/linux-omap-2.6.29/omap3evm/omap3evm-lcd-redtint.diff new file mode 100644 index 0000000000..54ea3c9f68 --- /dev/null +++ b/meta/recipes-kernel/linux/linux-omap-2.6.29/omap3evm/omap3evm-lcd-redtint.diff | |||
@@ -0,0 +1,66 @@ | |||
1 | Message-ID: <c656a4d20809270046u341aec27k6d896d4b42e799d4@mail.gmail.com> | ||
2 | Date: Sat, 27 Sep 2008 03:46:18 -0400 | ||
3 | From: "arun c" <arun.edarath@gmail.com> | ||
4 | To: "Daniel Schaeffer" <daniel.schaeffer@timesys.com> | ||
5 | Subject: Re: OMAP3EVM LCD red tint | ||
6 | |||
7 | Hi Daniel Schaeffer | ||
8 | |||
9 | On Fri, Sep 26, 2008 at 4:20 PM, Daniel Schaeffer | ||
10 | <daniel.schaeffer@timesys.com> wrote: | ||
11 | > Has anyone looked into why the LCD display on the OMAP3EVM is always tinted | ||
12 | > red? I created a couple of color test images that I cat'ed to /dev/fb and it | ||
13 | > looks like the blue color channel is completely ignored. I was testing on | ||
14 | > v2.6.26-omap2 but is doesn't look like there have been any changes to the fb | ||
15 | > driver since then so I'm assuming the issue is also present in the head of | ||
16 | > the git tree. | ||
17 | > | ||
18 | > Regards, | ||
19 | > | ||
20 | > Daniel Schaeffer | ||
21 | > | ||
22 | |||
23 | Try the patch below(Remember that you may have to manually edit because | ||
24 | this patch is against current HEAD) | ||
25 | |||
26 | |||
27 | diff --git a/drivers/video/omap/lcd_omap3evm.c | ||
28 | b/drivers/video/omap/lcd_omap3evm.c | ||
29 | index a564ca5..821bafe 100644 | ||
30 | --- a/drivers/video/omap/lcd_omap3evm.c | ||
31 | +++ b/drivers/video/omap/lcd_omap3evm.c | ||
32 | @@ -44,6 +44,8 @@ | ||
33 | #define ENABLE_VDAC_DEV_GRP 0x20 | ||
34 | #define ENABLE_VPLL2_DEDICATED 0x05 | ||
35 | #define ENABLE_VPLL2_DEV_GRP 0xE0 | ||
36 | +#define TWL4030_VPLL2_DEV_GRP 0x33 | ||
37 | +#define TWL4030_VPLL2_DEDICATED 0x36 | ||
38 | |||
39 | #define TWL_LED_LEDEN 0x00 | ||
40 | #define TWL_PWMA_PWMAON 0x00 | ||
41 | @@ -86,12 +88,24 @@ static void omap3evm_panel_cleanup(struct lcd_panel *panel) | ||
42 | |||
43 | static int omap3evm_panel_enable(struct lcd_panel *panel) | ||
44 | { | ||
45 | + if (omap_rev > OMAP3430_REV_ES1_0) { | ||
46 | + twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, | ||
47 | + ENABLE_VPLL2_DEDICATED, TWL4030_VPLL2_DEDICATED); | ||
48 | + twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, | ||
49 | + ENABLE_VPLL2_DEV_GRP, TWL4030_VPLL2_DEV_GRP); | ||
50 | + } | ||
51 | omap_set_gpio_dataout(LCD_PANEL_ENABLE_GPIO, 0); | ||
52 | return 0; | ||
53 | } | ||
54 | |||
55 | static void omap3evm_panel_disable(struct lcd_panel *panel) | ||
56 | { | ||
57 | + if (omap_rev > OMAP3430_REV_ES1_0) { | ||
58 | + twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0, | ||
59 | + TWL4030_VPLL2_DEDICATED); | ||
60 | + twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0, | ||
61 | + TWL4030_VPLL2_DEV_GRP); | ||
62 | + } | ||
63 | omap_set_gpio_dataout(LCD_PANEL_ENABLE_GPIO, 1); | ||
64 | } | ||
65 | |||
66 | |||