linux-kernel - [PATCH v3 6/6] ASoC: qdsp6: dt-bindings: Add q6afe pcm dt binding documentation

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Date:   Tue, 11 Feb 2020 20:52:22 -0500
From:   Adam Serbinski <adam@...binski.com>
To:     Mark Brown <broonie@...nel.org>,
        Srini Kandagatla <srinivas.kandagatla@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Adam Serbinski <adam@...binski.com>,
        Andy Gross <agross@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Patrick Lai <plai@...eaurora.org>,
        Banajit Goswami <bgoswami@...eaurora.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 6/6] ASoC: qdsp6: dt-bindings: Add q6afe pcm dt binding documentation

This patch adds documentation of bindings required for PCM ports on AFE.

Signed-off-by: Adam Serbinski <adam@...binski.com>
CC: Andy Gross <agross@...nel.org>
CC: Mark Rutland <mark.rutland@....com>
CC: Liam Girdwood <lgirdwood@...il.com>
CC: Patrick Lai <plai@...eaurora.org>
CC: Banajit Goswami <bgoswami@...eaurora.org>
CC: Jaroslav Kysela <perex@...ex.cz>
CC: Takashi Iwai <tiwai@...e.com>
CC: alsa-devel@...a-project.org
CC: linux-arm-msm@...r.kernel.org
CC: devicetree@...r.kernel.org
CC: linux-kernel@...r.kernel.org
---
 .../devicetree/bindings/sound/qcom,q6afe.txt  | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
index d74888b9f1bb..6b1b17d31a2a 100644
--- a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
+++ b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
@@ -51,6 +51,24 @@ configuration of each dai. Must contain the following properties.
 	Definition: Must be list of serial data lines used by this dai.
 	should be one or more of the 0-3 sd lines.
 
+ - qcom,pcm-quantype
+	Usage: required for pcm interface
+	Value type: <u32>
+	Definition: PCM quantization type
+		0 - ALAW, no padding
+		1 - MULAW, no padding
+		2 - Linear, no padding
+		3 - ALAW, padding
+		4 - MULAW, padding
+		5 - Linear, padding
+
+ - qcom,pcm-slot-mapping
+	Usage: required for pcm interface
+	Value type: <prop-encoded-array>
+	Definition: Slot mapping for audio channels. Array size is the number
+		of slots, minimum 1, maximum 4. The value is 0 for no mapping
+		to the slot, or the channel number from 1 to 32.
+
  - qcom,tdm-sync-mode:
 	Usage: required for tdm interface
 	Value type: <prop-encoded-array>
@@ -174,5 +192,29 @@ q6afe@4 {
 			reg = <23>;
 			qcom,sd-lines = <1>;
 		};
+
+		pri-pcm-rx@105 {
+			reg = <105>;
+			qcom,pcm-quantype = <2>;
+			qcom,pcm-slot-mapping = <1>;
+		};
+
+		pri-pcm-tx@106 {
+			reg = <106>;
+			qcom,pcm-quantype = <2>;
+			qcom,pcm-slot-mapping = <1>;
+		};
+
+		quat-pcm-rx@111 {
+			reg = <111>;
+			qcom,pcm-quantype = <5>;
+			qcom,pcm-slot-mapping = <0 0 1>;
+		};
+
+		quat-pcm-tx@112 {
+			reg = <112>;
+			qcom,pcm-quantype = <5>;
+			qcom,pcm-slot-mapping = <0 0 1>;
+		};
 	};
 };
-- 
2.21.1