UPSTREAM: ARM: dts: rockchip: increase the mclk_fs to 512 for kylin board
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>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Bug: 25923642
Patchset: Support to playback 8KHz got audio.
(Note: fixit as the 512 since the upstream is 256)
(cherry picked from git.kernel.org mmind/linux-rockchip.git v4.6-armsoc/dts32
commit f6bb9d5f30d6986c4fdce1ed5a36088a0c30c544)
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Change-Id: Id6f5a864f6d6f8f3dbcadd4c03fa5882000711dd
diff --git a/arch/arm/boot/dts/rk3036-kylin.dts b/arch/arm/boot/dts/rk3036-kylin.dts
index 1c55b91..ab3209c 100644
--- a/arch/arm/boot/dts/rk3036-kylin.dts
+++ b/arch/arm/boot/dts/rk3036-kylin.dts
@@ -61,7 +61,7 @@
compatible = "simple-audio-card";
simple-audio-card,format = "i2s";
simple-audio-card,name = "rockchip,rt5616-codec";
- simple-audio-card,mclk-fs = <64>;
+ simple-audio-card,mclk-fs = <512>;
simple-audio-card,widgets =
"Microphone", "Microphone Jack",
"Headphone", "Headphone Jack";
