[RFC PATCH] ARM: dts: rockchip: increase the mclk_fs to 512 for kylin board

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From	Xing Zheng <zhengxing@rock-chips.com>
Newsgroups	linux.kernel
Subject	[RFC PATCH] ARM: dts: rockchip: increase the mclk_fs to 512 for kylin board
Date	Fri, 29 Jan 2016 09:50:02 +0100
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If we playback the 8KHz FS audio with the 256 mclk_fs, we need the
mclk = 256 * 8000 = 2.048MHz, the frac div is 594 / 2.048 = 290,
the frac div value 0x00809015 set to the CRU_CLKSEL7_CON will cause
to hang.

We increase the mclk_fs to 512, will get the mclk = 512 * 8000 =
4.096MHz, use 0x01009015 instead of 0x00809015 to work around this
issue. We will keep tracking it.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
---

 arch/arm/boot/dts/rk3036-kylin.dts |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/rk3036-kylin.dts b/arch/arm/boot/dts/rk3036-kylin.dts
index 190f22c..be468f9 100644
--- a/arch/arm/boot/dts/rk3036-kylin.dts
+++ b/arch/arm/boot/dts/rk3036-kylin.dts
@@ -67,7 +67,7 @@
 		compatible = "simple-audio-card";
 		simple-audio-card,format = "i2s";
 		simple-audio-card,name = "rockchip,rt5616-codec";
-		simple-audio-card,mclk-fs = <256>;
+		simple-audio-card,mclk-fs = <512>;
 		simple-audio-card,widgets =
 			"Microphone", "Microphone Jack",
 			"Headphone", "Headphone Jack";
-- 
1.7.9.5

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[RFC PATCH] ARM: dts: rockchip: increase the mclk_fs to 512 for kylin board Xing Zheng <zhengxing@rock-chips.com> - 2016-01-29 09:50 +0100
  Re: [RFC PATCH] ARM: dts: rockchip: increase the mclk_fs to 512 for kylin board Heiko Stübner <heiko@sntech.de> - 2016-02-02 22:50 +0100

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