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dt-bindings: sound: rockchip: i2s: Document property 'mclk-calibrate'

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Change-Id: I05fa565ba77d77704f82e473ee3b35d6fcc8a6ec
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
This commit is contained in:
Sugar Zhang
2021-01-12 15:26:23 +08:00
committed by Tao Huang
parent 70838da2b1
commit 8634d871e4
1 changed files with 15 additions and 0 deletions
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15
Documentation/devicetree/bindings/sound/rockchip-i2s.txt
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@@ -52,6 +52,12 @@ playback/capture:
- rockchip,grf: the phandle of the syscon node for GRF register.
Optional properties:
- rockchip,mclk-calibrate: This is a boolean value, if present, enable
clk calibrate and compenation.
note: the corresponding property 'i2s_clk_root' should be assigned.
Example for rk3288 I2S controller:
i2s@ff890000 {
@@ -66,3 +72,12 @@ i2s@ff890000 {
rockchip,capture-channels = <2>;
rockchip,bclk-fs = <64>;
};
Example for RV1126 I2S controller with mclk-calibrate:
&i2s1_2ch {
status = "okay";
clocks = <&cru MCLK_I2S1>, <&cru HCLK_I2S1>, <&cru PLL_CPLL>;
clock-names = "i2s_clk", "i2s_hclk", "i2s_clk_root";
rockchip,mclk-calibrate;
};