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>
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@ -288,8 +288,11 @@ static struct clk *camera_clk;
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static void camera_power_on(void)
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{
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/* Use 10 MHz VIO_CKO instead of 24 MHz to work
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* around signal quality issues on Panel Board V2.1.
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*/
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camera_clk = clk_get(NULL, "video_clk");
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clk_set_rate(camera_clk, 24000000);
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clk_set_rate(camera_clk, 10000000);
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clk_enable(camera_clk); /* start VIO_CKO */
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/* use VIO_RST to take camera out of reset */
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