linux-kernel - [PATCH v4 2/3] dt-bindings: soundwire: qcom: Add bindings for RX and TX cgcr register control

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Message-Id: <1635250764-13994-3-git-send-email-srivasam@codeaurora.org>
Date:   Tue, 26 Oct 2021 17:49:23 +0530
From:   Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org, lgirdwood@...il.com,
        broonie@...nel.org, robh+dt@...nel.org, plai@...eaurora.org,
        bgoswami@...eaurora.org, perex@...ex.cz, tiwai@...e.com,
        srinivas.kandagatla@...aro.org, rohitkr@...eaurora.org,
        linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        swboyd@...omium.org, judyhsiao@...omium.org
Cc:     Srinivasa Rao Mandadapu <srivasam@...eaurora.org>,
        Venkata Prasad Potturu <potturu@...eaurora.org>
Subject: [PATCH v4 2/3] dt-bindings: soundwire: qcom: Add bindings for RX and TX cgcr register control

Update description for RX and TX cgcr register control property required for
soundwire version 1.6.0 and above.

Signed-off-by: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
Co-developed-by: Venkata Prasad Potturu <potturu@...eaurora.org>
Signed-off-by: Venkata Prasad Potturu <potturu@...eaurora.org>
---
 Documentation/devicetree/bindings/soundwire/qcom,sdw.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/soundwire/qcom,sdw.txt b/Documentation/devicetree/bindings/soundwire/qcom,sdw.txt
index b93a2b3..91b9086 100644
--- a/Documentation/devicetree/bindings/soundwire/qcom,sdw.txt
+++ b/Documentation/devicetree/bindings/soundwire/qcom,sdw.txt
@@ -150,6 +150,15 @@ board specific bus parameters.
 		    or applicable for the respective data port.
 		    More info in MIPI Alliance SoundWire 1.0 Specifications.
 
+- qcom,swrm-hctl-reg:
+	Usage: optional
+	Value type: <prop-encoded-array>
+	Definition: The base address of SoundWire RX and TX cgcr register
+		    address space.
+		    This is to update soundwire master rxtx cgcr register field to
+		    make clock gating control as software controllable for RX path and
+		    TX path which is required for SoundWire version 1.6.0 and above.
+
 Note:
 	More Information on detail of encoding of these fields can be
 found in MIPI Alliance SoundWire 1.0 Specifications.
-- 
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