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authorMagnus Damm <damm@igel.co.jp>2008-10-22 18:25:39 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-10-22 18:34:09 +0900
commit22ee3ba611e0aa73228ae64fa68d89c52367702a (patch)
tree4be13a693780d52e8fd904e3aab03e9afddad156 /arch/sh
parented0b2ef55a393b96211e209f26544f2f180b0fe8 (diff)
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sh: use 10MHz VIO_CLK for ov772x on Migo-R
Use a slower VIO_CKO clock frequency for the ov772x on Migo-R. This improves the camera picture quality on Panel Board V2.1. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/boards/mach-migor/setup.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index b447193..9752819 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -288,8 +288,11 @@ static struct clk *camera_clk;
static void camera_power_on(void)
{
+ /* Use 10 MHz VIO_CKO instead of 24 MHz to work
+ * around signal quality issues on Panel Board V2.1.
+ */
camera_clk = clk_get(NULL, "video_clk");
- clk_set_rate(camera_clk, 24000000);
+ clk_set_rate(camera_clk, 10000000);
clk_enable(camera_clk); /* start VIO_CKO */
/* use VIO_RST to take camera out of reset */