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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>
This commit is contained in:
Magnus Damm 2008-10-22 18:25:39 +09:00 committed by Paul Mundt
parent ed0b2ef55a
commit 22ee3ba611
1 changed files with 4 additions and 1 deletions
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5
arch/sh/boards/mach-migor/setup.c
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@ -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 */