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| author |  Sugar Zhang <sugar.zhang@rock-chips.com>
| 2016-04-11 17:26:03 +0800 |
|---|---|---|
| committer |  Mark Brown <broonie@kernel.org>
| 2016-05-30 16:19:41 +0100 |
| commit | 170abcaae8bec0a53f2f7708a83119ec42fb09e2 (patch) | |
| tree | 81e39509d076707f6ac8c433686088003b07d46c /Documentation/devicetree/bindings/sound | |
| parent | Linux 4.7-rc1 (diff) | |
| download | linux-170abcaae8bec0a53f2f7708a83119ec42fb09e2.tar.gz linux-170abcaae8bec0a53f2f7708a83119ec42fb09e2.tar.bz2 linux-170abcaae8bec0a53f2f7708a83119ec42fb09e2.zip | |
ASoC: rockchip: i2s: configure the sdio pins' iomux mode
There are 3 i2s sdio pins, which iomux mode is as follows:
- sdi3_sdo1
- sdi2_sdo2
- sdi1_sdo3
we need to configure these pins' iomux mode via the GRF register
when use multi channel playback/capture.
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/rockchip-i2s.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt index 6e86d8aa29b4..4ea29aa9af59 100644 --- a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt +++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt @@ -23,6 +23,11 @@ Required properties: - rockchip,playback-channels: max playback channels, if not set, 8 channels default. - rockchip,capture-channels: max capture channels, if not set, 2 channels default. +Required properties for controller which support multi channels +playback/capture: + +- rockchip,grf: the phandle of the syscon node for GRF register. + Example for rk3288 I2S controller: i2s@ff890000 { |