linux-kernel - [PATCH v3 17/20] ASoC: dt-bindings: tas2770: add flags for SDOUT pulldown and zero-fill

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Message-Id: <20250227-apple-codec-changes-v3-17-cbb130030acf@gmail.com>
Date: Thu, 27 Feb 2025 22:07:44 +1000
From: James Calligeros <jcalligeros99@...il.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Shenghao Ding <shenghao-ding@...com>, Kevin Lu <kevin-lu@...com>, 
 Baojun Xu <baojun.xu@...com>, Dan Murphy <dmurphy@...com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shi Fu <shifu0704@...ndersoft.com>, 
 Jean Delvare <jdelvare@...e.com>, Guenter Roeck <linux@...ck-us.net>
Cc: Alyssa Rosenzweig <alyssa@...enzweig.io>, 
 Martin Povišer <povik+lin@...ebit.org>, 
 Hector Martin <marcan@...can.st>, linux-sound@...r.kernel.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 asahi@...ts.linux.dev, linux-hwmon@...r.kernel.org, 
 James Calligeros <jcalligeros99@...il.com>
Subject: [PATCH v3 17/20] ASoC: dt-bindings: tas2770: add flags for SDOUT
 pulldown and zero-fill

TAS2770 can pull down and zero-fill SDOUT when not actively transmitting
TDM slot data. Zero-fill is useful when there are no other amps on the
bus. Pulldown is useful when the chip is attached to a shared bus.

Signed-off-by: James Calligeros <jcalligeros99@...il.com>
---
 .../bindings/sound/ti,tas2770.yaml       | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/ti,tas2770.yaml b/Documentation/devicetree/bindings/sound/ti,tas2770.yaml
index 8eab98a0f7a25a9c87d2c56fd0635ff8ecee17d0..3eba9bb34a581526f68b6bf2e8437e1f1e03d26f 100644
--- a/Documentation/devicetree/bindings/sound/ti,tas2770.yaml
+++ b/Documentation/devicetree/bindings/sound/ti,tas2770.yaml
@@ -57,6 +57,18 @@ properties:
       - 0 # Rising edge
       - 1 # Falling edge
 
+  ti,sdout-pull-down:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      If present, SDOUT will be pulled low when not
+      transmitting.
+
+  ti,sdout-zero-fill:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      If present, SDOUT will be zero-filled when not
+      transmitting.
+
   '#sound-dai-cells':
     # The codec has a single DAI, the #sound-dai-cells=<1>; case is left in for backward
     # compatibility but is deprecated.

-- 
2.48.1