[PATCH v2 07/10] ASoC: dt-bindings: clarify areg-supply documentation

From: Sascha Hauer

Date: Thu Dec 18 2025 - 10:04:24 EST


From: Emil-Juhl <emdj@xxxxxxxxxxxxxxx>

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@xxxxxxxxx>
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
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: |

--
2.47.3