[PATCH v4 07/10] ASoC: dt-bindings: clarify areg-supply documentation
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: 2026-01-13 10:59:46
Also in:
linux-rt-devel, linux-sound, lkml
Subsystem:
open firmware and flattened device tree bindings, sound - soc layer / dynamic audio power management (asoc), texas instruments audio (asoc/hda) drivers, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Liam Girdwood, Mark Brown, Shenghao Ding, Kevin Lu, Baojun Xu, Sen Wang, Linus Torvalds
From: Emil-Juhl <redacted> The documentation for areg-supply could cause confusion mainly in terms of the relationship between AREG and AVDD. According to the datasheet[1] the AREG can be one of two cases: 1) an external 1.8V supply 2) generated by an internal regulator (hence a 1.8V output) [1] https://www.ti.com/lit/ds/symlink/tlv320adc5140.pdf Signed-off-by: Emil-Juhl <redacted> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml b/Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml
index 876fa97bfbcdd3b9450aa6ff57de42f1faed350d..b34ea7824360310434d8b826392864dbfa5fc369 100644
--- a/Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml
+++ b/Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml@@ -41,8 +41,8 @@ properties: areg-supply: description: | - Regulator with AVDD at 3.3V. If not defined then the internal regulator - is enabled. + External supply of 1.8V. If not defined then the internal regulator is + enabled instead. ti,mic-bias-source: description: |
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2.47.3