This patch updates documentation for the Designware I2S driver.
Signed-off-by: Jose Abreu joabreu@synopsys.com Acked-by: Rob Herring robh@kernel.org Cc: Rob Herring robh@kernel.org Cc: Carlos Palminha palminha@synopsys.com Cc: Alexey Brodkin abrodkin@synopsys.com Cc: devicetree@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org ---
No changes v5 -> v6.
Changes v4 -> v5: * interrupts is now required property * Drop 'snps-use-dmaengine' property
This patch was only introduced in v4.
Documentation/devicetree/bindings/sound/designware-i2s.txt | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/designware-i2s.txt b/Documentation/devicetree/bindings/sound/designware-i2s.txt index 7bb5424..27a728f 100644 --- a/Documentation/devicetree/bindings/sound/designware-i2s.txt +++ b/Documentation/devicetree/bindings/sound/designware-i2s.txt @@ -3,14 +3,18 @@ DesignWare I2S controller Required properties: - compatible : Must be "snps,designware-i2s" - reg : Must contain the I2S core's registers location and length + - interrupts: <IRQ> where IRQ is the interrupt number. - clocks : Pairs of phandle and specifier referencing the controller's clocks. The controller expects one clock: the clock used as the sampling rate reference clock sample. - clock-names : "i2sclk" for the sample rate reference clock. + +Optional properties: - dmas: Pairs of phandle and specifier for the DMA channels that are used by the core. The core expects one or two dma channels: one for transmit and - one for receive. - - dma-names : "tx" for the transmit channel, "rx" for the receive channel. + one for receive. Set this parameter if the I2S DMA block is enabled. + - dma-names : "tx" for the transmit channel, "rx" for the receive channel. Set + this parameter if the I2S DMA block is enabled.
For more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties please check: @@ -23,6 +27,7 @@ Example: soc_i2s: i2s@7ff90000 { compatible = "snps,designware-i2s"; reg = <0x0 0x7ff90000 0x0 0x1000>; + interrupts = <15>; clocks = <&scpi_i2sclk 0>; clock-names = "i2sclk"; #sound-dai-cells = <0>;