ZTE's zx2967 I2S controller driver introduces pclk, this patch documents this fact.
Signed-off-by: Baoyou Xie baoyou.xie@linaro.org --- Documentation/devicetree/bindings/sound/zte,zx-i2s.txt | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt b/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt index 7e5aa6f..77390c0 100644 --- a/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt +++ b/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt @@ -4,7 +4,7 @@ Required properties: - compatible : Must be "zte,zx296702-i2s" - reg : Must contain I2S core's registers location and length - clocks : Pairs of phandle and specifier referencing the controller's clocks. - - clock-names: "tx" for the clock to the I2S interface. + - clock-names: "wclk" for the wclk, "pclk" for the pclk to the I2S interface. - dmas: Pairs of phandle and specifier for the DMA channel that is used by the core. The core expects two dma channels for transmit. - dma-names : Must be "tx" and "rx" @@ -15,13 +15,17 @@ please check: * clock/clock-bindings.txt * dma/dma.txt
+Please note that ZTE ZX296702 I2S controller driver is compatible for zx296702 +and zx296718, so compatible string might be set as follow: + "zte,zx296718-i2s", "zte,zx296702-i2s" + Example: i2s0: i2s0@0b005000 { #sound-dai-cells = <0>; - compatible = "zte,zx296702-i2s"; + compatible = "zte,zx296718-i2s", "zte,zx296702-i2s"; reg = <0x0b005000 0x1000>; - clocks = <&lsp0clk ZX296702_I2S0_DIV>; - clock-names = "tx"; + clocks = <&audiocrm AUDIO_I2S0_WCLK>, <&audiocrm AUDIO_I2S0_PCLK>; + clock-names = "wclk", "pclk"; interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>; dmas = <&dma 5>, <&dma 6>; dma-names = "tx", "rx";