linux-kernel - [RESEND PATCH v6 v6 1/2] ASoC: dt-bindings: qcom,wsa8840: Add reset-gpios for shared line

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Message-Id: <20240221113036.23905-1-krzysztof.kozlowski@linaro.org>
Date: Wed, 21 Feb 2024 12:30:35 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	Banajit Goswami <bgoswami@...cinc.com>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	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>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	alsa-devel@...a-project.org,
	linux-arm-msm@...r.kernel.org,
	linux-sound@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Sean Anderson <sean.anderson@...o.com>,
	Rob Herring <robh@...nel.org>
Subject: [RESEND PATCH v6 v6 1/2] ASoC: dt-bindings: qcom,wsa8840: Add reset-gpios for shared line

On newer Qualcomm platforms, like X1E80100-CRD, the WSA884x speakers
share SD_N GPIOs between two speakers, thus a coordinated assertion is
needed.  Linux supports handling shared GPIO lines through "reset-gpios"
property, thus allow specifying either powerdown or reset GPIOs (these
are the same).

Cc: Bartosz Golaszewski <brgl@...ev.pl>
Cc: Sean Anderson <sean.anderson@...o.com>
Acked-by: Rob Herring <robh@...nel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

---

Resending because reset part of the patchset was applied, so this can go
independently via ASoC.
https://lore.kernel.org/all/38fda6619769da7240517982adfe734cb653ff5e.camel@pengutronix.de/

Changes in v6
=============
1. Add Rb/Ack tags.

For full changelog, see:
https://lore.kernel.org/all/20240129115216.96479-1-krzysztof.kozlowski@linaro.org/
---
 .../devicetree/bindings/sound/qcom,wsa8840.yaml       | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/sound/qcom,wsa8840.yaml b/Documentation/devicetree/bindings/sound/qcom,wsa8840.yaml
index d717017b0fdb..22798d22d981 100644
--- a/Documentation/devicetree/bindings/sound/qcom,wsa8840.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,wsa8840.yaml
@@ -28,6 +28,10 @@ properties:
     description: Powerdown/Shutdown line to use (pin SD_N)
     maxItems: 1
 
+  reset-gpios:
+    description: Powerdown/Shutdown line to use (pin SD_N)
+    maxItems: 1
+
   '#sound-dai-cells':
     const: 0
 
@@ -37,11 +41,16 @@ properties:
 required:
   - compatible
   - reg
-  - powerdown-gpios
   - '#sound-dai-cells'
   - vdd-1p8-supply
   - vdd-io-supply
 
+oneOf:
+  - required:
+      - powerdown-gpios
+  - required:
+      - reset-gpios
+
 unevaluatedProperties: false
 
 examples:
-- 
2.34.1