linux-kernel - [PATCH] ASoC: wm8962: Add optional mclk device tree binding

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Date:   Thu, 17 Dec 2020 10:27:40 -0600
From:   Adam Ford <aford173@...il.com>
To:     alsa-devel@...a-project.org
Cc:     aford@...conembedded.com, Adam Ford <aford173@...il.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: wm8962: Add optional mclk device tree binding

The driver can request an optional clock for mclk.
Update the txt file to reflect this.

Suggested-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Signed-off-by: Adam Ford <aford173@...il.com>

diff --git a/Documentation/devicetree/bindings/sound/wm8962.txt b/Documentation/devicetree/bindings/sound/wm8962.txt
index dcfa9a3369fd..c36c649ddfd0 100644
--- a/Documentation/devicetree/bindings/sound/wm8962.txt
+++ b/Documentation/devicetree/bindings/sound/wm8962.txt
@@ -9,6 +9,9 @@ Required properties:
   - reg : the I2C address of the device.
 
 Optional properties:
+
+  - clocks : The clock source of the mclk
+
   - spk-mono: This is a boolean property. If present, the SPK_MONO bit
     of R51 (Class D Control 2) gets set, indicating that the speaker is
     in mono mode.
@@ -27,6 +30,7 @@ Example:
 wm8962: codec@1a {
 	compatible = "wlf,wm8962";
 	reg = <0x1a>;
+	clocks = <&clks IMX6QDL_CLK_CKO>;
 
 	gpio-cfg = <
 		0x0000 /* 0:Default */
-- 
2.25.1