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ASoC: dt-bindings: clarify areg-supply documentation

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>

authored by

Emil-Juhl and committed by
Mark Brown 5682093f 57be1f67

+2 -2
+2 -2
Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml
··· 41 41 42 42 areg-supply: 43 43 description: | 44 - Regulator with AVDD at 3.3V. If not defined then the internal regulator 45 - is enabled. 44 + External supply of 1.8V. If not defined then the internal regulator is 45 + enabled instead. 46 46 47 47 ti,mic-bias-source: 48 48 description: |