[alsa-devel] [PATCH 2/2 v6] ASoC: dwc: Update DOCUMENTATION for I2S Driver
Jose Abreu
Jose.Abreu at synopsys.com
Wed Apr 27 19:32:42 CEST 2016
Hi Mark,
Sorry. Follows bellow.
On 27-04-2016 11:05, Jose Abreu wrote:
> This patch updates documentation for the Designware I2S
> driver.
>
> Signed-off-by: Jose Abreu <joabreu at synopsys.com>
> Acked-by: Rob Herring <robh at kernel.org>
> Cc: Rob Herring <robh at kernel.org>
> Cc: Carlos Palminha <palminha at synopsys.com>
> Cc: Alexey Brodkin <abrodkin at synopsys.com>
> Cc: devicetree at vger.kernel.org
> Cc: linux-snps-arc at lists.infradead.org
> Cc: alsa-devel at alsa-project.org
> Cc: linux-kernel at 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 at 7ff90000 {
> compatible = "snps,designware-i2s";
> reg = <0x0 0x7ff90000 0x0 0x1000>;
> + interrupts = <15>;
> clocks = <&scpi_i2sclk 0>;
> clock-names = "i2sclk";
> #sound-dai-cells = <0>;
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