diff options
| author | Wonjoon Lee <woojoo.lee@samsung.com> | 2016-09-22 21:50:06 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-09-24 19:11:04 +0100 |
| commit | 3a6f9dce6116cc54e31dc10d176ceecb1a7e4e7f (patch) | |
| tree | 71a83c9811efd80d118c0d1457a056465ce67e12 /Documentation | |
| parent | 22b93eaf55edfd2f1fe9d1fc0d7338f582f12745 (diff) | |
ASoC: rk3399_gru_sound: fix recording pop at first attempt
Pop happens when mclk applied but dmic's own boot-time
Specify dmic delay times in dt to make sure
clocks are ready earlier than dmic working
Signed-off-by: Wonjoon Lee <woojoo.lee@samsung.com>
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt b/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt index f19b6c830a34..eac91db07178 100644 --- a/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt +++ b/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt @@ -6,10 +6,17 @@ Required properties: connected to the codecs - rockchip,codec: The phandle of the MAX98357A/RT5514/DA7219 codecs +Optional properties: +- dmic-wakeup-delay-ms : specify delay time (ms) for DMIC ready. + If this option is specified, which means it's required dmic need + delay for DMIC to ready so that rt5514 can avoid recording before + DMIC send valid data + Example: sound { compatible = "rockchip,rk3399-gru-sound"; rockchip,cpu = <&i2s0>; rockchip,codec = <&max98357a &rt5514 &da7219>; + dmic-wakeup-delay-ms = <20>; }; |