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Message-Id: <20240223-veml6075_vdd-v1-1-ac76509b1998@gmail.com>
Date: Fri, 23 Feb 2024 14:01:33 +0100
From: Javier Carrasco <javier.carrasco.cruz@...il.com>
To: Jonathan Cameron <jic23@...nel.org>, 
 Lars-Peter Clausen <lars@...afoo.de>, Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-iio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Javier Carrasco <javier.carrasco.cruz@...il.com>
Subject: [PATCH] dt-bindings: iio: light: vishay,veml6075: make vdd-supply
 required

The VEML6075 requires a single supply to operate. The property already
exists in the bindings and it is used in the example, but it is still
not on the list of required properties.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@...il.com>
---
The driver and bindings for the VEML6075 UV sensor were merged in the
merge window for v6.8 i.e. they have not been released yet beyond rc.

Applying this patch as a fix now would avoid an ABI break like the
recently discussed here:

https://lore.kernel.org/linux-iio/8409a5bc71b995e3b738b817a074cfb131c3b2b5.camel@gmail.com/

On the other hand, from the same discussion it can be concluded that the
major risk would be a potential warning with dtbs_check, in case this
patch is applied during the next merge window.

The VEML6075 driver already handles the power supply with
devm_regulator_get_enable().
---
 Documentation/devicetree/bindings/iio/light/vishay,veml6075.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/iio/light/vishay,veml6075.yaml b/Documentation/devicetree/bindings/iio/light/vishay,veml6075.yaml
index abee04cd126e..91c318746bf3 100644
--- a/Documentation/devicetree/bindings/iio/light/vishay,veml6075.yaml
+++ b/Documentation/devicetree/bindings/iio/light/vishay,veml6075.yaml
@@ -21,6 +21,7 @@ properties:
 required:
   - compatible
   - reg
+  - vdd-supply
 
 additionalProperties: false
 

---
base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d
change-id: 20240223-veml6075_vdd-e2220158ffda

Best regards,
-- 
Javier Carrasco <javier.carrasco.cruz@...il.com>


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