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ASoC: dt-bindings: clarify areg-supply documentation

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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 <juhl.emildahl@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260113-sound-soc-codecs-tvl320adcx140-v4-7-8f7ecec525c8@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Emil-Juhl 2026-01-13 11:58:50 +01:00 committed by Mark Brown
parent 57be1f6740
commit 5682093fc8
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1 changed files with 2 additions and 2 deletions
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Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml
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@ -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: |