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author | Damien.Horsley <Damien.Horsley@imgtec.com> | 2015-11-04 14:40:47 +0000 |
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committer | Mark Brown <broonie@kernel.org> | 2015-11-16 10:06:58 +0000 |
commit | e13c118075f9ba16d36083d63239ca85ee9b3891 (patch) | |
tree | 7123c8c314c5059e6a8b0c31ffd895c831adb99b /Documentation/devicetree/bindings/sound | |
parent | 8005c49d9aea74d382f474ce11afbbc7d7130bec (diff) | |
download | op-kernel-dev-e13c118075f9ba16d36083d63239ca85ee9b3891.zip op-kernel-dev-e13c118075f9ba16d36083d63239ca85ee9b3891.tar.gz |
ASoC: img: Add binding document for I2S input controller
Add a binding document for Imagination Technologies I2S input
controller
Signed-off-by: Damien.Horsley <Damien.Horsley@imgtec.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound')
-rw-r--r-- | Documentation/devicetree/bindings/sound/img,i2s-in.txt | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/img,i2s-in.txt b/Documentation/devicetree/bindings/sound/img,i2s-in.txt new file mode 100644 index 0000000..423265c --- /dev/null +++ b/Documentation/devicetree/bindings/sound/img,i2s-in.txt @@ -0,0 +1,47 @@ +Imagination Technologies I2S Input Controller + +Required Properties: + + - compatible : Compatible list, must contain "img,i2s-in" + + - #sound-dai-cells : Must be equal to 0 + + - reg : Offset and length of the register set for the device + + - clocks : Contains an entry for each entry in clock-names + + - clock-names : Must include the following entry: + "sys" The system clock + + - dmas: Contains an entry for each entry in dma-names. + + - dma-names: Must include the following entry: + "rx" Single DMA channel used by all active I2S channels + + - img,i2s-channels : Number of I2S channels instantiated in the I2S in block + +Optional Properties: + + - interrupts : Contains the I2S in interrupts. Depending on + the configuration, there may be no interrupts, one interrupt, + or an interrupt per I2S channel. For the case where there is + one interrupt per channel, the interrupts should be listed + in ascending channel order + + - resets: Contains a phandle to the I2S in reset signal + + - reset-names: Contains the reset signal name "rst" + +Example: + +i2s_in: i2s-in@18100800 { + compatible = "img,i2s-in"; + reg = <0x18100800 0x200>; + interrupts = <GIC_SHARED 7 IRQ_TYPE_LEVEL_HIGH>; + dmas = <&mdc 30 0xffffffff 0>; + dma-names = "rx"; + clocks = <&cr_periph SYS_CLK_I2S_IN>; + clock-names = "sys"; + img,i2s-channels = <6>; + #sound-dai-cells = <0>; +}; |