linux-kernel - [PATCH 1/2] ASoC: pcm512x: Adds bindings for TAS575x devices

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Message-Id: <20230907160851.14241-1-joerg.hifiberry@gmail.com>
Date:   Thu,  7 Sep 2023 18:08:51 +0200
From:   Joerg Schambacher <joerg.hifiberry@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     a-krasser@...com, joerg@...iberry.com,
        Joerg Schambacher <joerg.hifiberry@...il.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] ASoC: pcm512x: Adds bindings for TAS575x devices

The TAS5754/6 power amplifiers use the same pcm512x driver with
only minor restictions described in the bindings document.

Signed-off-by: Joerg Schambacher <joerg.hifiberry@...il.com>
---
 .../devicetree/bindings/sound/pcm512x.txt     | 22 +++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/pcm512x.txt b/Documentation/devicetree/bindings/sound/pcm512x.txt
index 3aae3b41bd8e..b16cd0463695 100644
--- a/Documentation/devicetree/bindings/sound/pcm512x.txt
+++ b/Documentation/devicetree/bindings/sound/pcm512x.txt
@@ -1,12 +1,12 @@
-PCM512x audio CODECs
+PCM512x and TAS575x audio CODECs/amplifiers
 
 These devices support both I2C and SPI (configured with pin strapping
-on the board).
+on the board). The TAS575x devices only support I2C.
 
 Required properties:
 
-  - compatible : One of "ti,pcm5121", "ti,pcm5122", "ti,pcm5141" or
-                 "ti,pcm5142"
+  - compatible : One of "ti,pcm5121", "ti,pcm5122", "ti,pcm5141",
+                 "ti,pcm5142", "ti,tas5754" or "ti,tas5756"
 
   - reg : the I2C address of the device for I2C, the chip select
           number for SPI.
@@ -25,6 +25,7 @@ Optional properties:
     through <6>.  The device will be configured for clock input on the
     given pll-in pin and PLL output on the given pll-out pin.  An
     external connection from the pll-out pin to the SCLK pin is assumed.
+    Caution: the TAS-desvices only support gpios 1,2 and 3
 
 Examples:
 
@@ -50,3 +51,16 @@ Examples:
 		pll-in = <3>;
 		pll-out = <6>;
 	};
+
+	tas5756: tas5756@4f {
+		compatible = "ti,tas5756";
+		reg = <0x4f>;
+
+		AVDD-supply = <&reg_3v3_analog>;
+		DVDD-supply = <&reg_1v8>;
+		CPVDD-supply = <&reg_3v3>;
+
+		clocks = <&sck>;
+		pll-in = <1>;
+		pll-out = <2>;
+	};
-- 
2.34.1