Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1321566
| 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 | 2016-01-29 09:50 +0100 |
| Message-ID | <qWcUG-90-15@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
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
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
[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
csiph-web