From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baolin Wang Subject: [PATCH 1/2] dt-bindings: ASoC: Add Spreadtrum DMA platform documentation Date: Tue, 29 Jan 2019 16:04:44 +0800 Message-ID: <15c562bcfd488fbf1979a69f96ddbd8df57f7e69.1548747137.git.baolin.wang@linaro.org> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, perex@perex.cz, tiwai@suse.com Cc: linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, baolin.wang@linaro.org List-Id: devicetree@vger.kernel.org Add documentation for Spreadtrum DMA platform driver. Signed-off-by: Baolin Wang --- .../devicetree/bindings/sound/sprd-pcm.txt | 23 ++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/sprd-pcm.txt diff --git a/Documentation/devicetree/bindings/sound/sprd-pcm.txt b/Documentation/devicetree/bindings/sound/sprd-pcm.txt new file mode 100644 index 0000000..4b23e84 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/sprd-pcm.txt @@ -0,0 +1,23 @@ +* Spreadtrum DMA platfrom bindings + +Required properties: +- compatible: Should be "sprd,pcm-platform". +- dmas: Specify the list of DMA controller phandle and DMA request line ordered pairs. +- dma-names: Identifier string for each DMA request line in the dmas property. + These strings correspond 1:1 with the ordered pairs in dmas. + +Example: + + audio_platform:platform@0 { + compatible = "sprd,pcm-platform"; + dmas = <&agcp_dma 1 1>, <&agcp_dma 2 2>, + <&agcp_dma 3 3>, <&agcp_dma 4 4>, + <&agcp_dma 5 5>, <&agcp_dma 6 6>, + <&agcp_dma 7 7>, <&agcp_dma 8 8>, + <&agcp_dma 9 9>, <&agcp_dma 10 10>; + dma-names = "normal_p_l", "normal_p_r", + "normal_c_l", "normal_c_r", + "voice_c", "fast_p", + "loop_c", "loop_p", + "voip_c", "voip_p"; + }; -- 1.7.9.5