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Commit 22ee3ba6 authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt
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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: default avatarMagnus Damm <damm@igel.co.jp>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent ed0b2ef5

arch/sh/boards/mach-migor/setup.c

+4 −1
Original line number Diff line number Diff line
@@ -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 */