[PATCH] arm64: dts: imx8mn-var-som-symphony: add vcc supply for PCA9534
Krzysztof Kozlowski
krzysztof.kozlowski at linaro.org
Mon Nov 6 12:39:42 PST 2023
On 06/11/2023 19:57, Hugo Villeneuve wrote:
> From: Hugo Villeneuve <hvilleneuve at dimonoff.com>
>
> The following warning is shown when probing device:
>
> pca953x 1-0020: supply vcc not found, using dummy regulator
>
> Add fixed 3.3v regulator as vcc supply to silence the warning.
>
This is not really a warning. It's perfectly fine to use dummy
regulator. Adding such fixed supply has sense in following cases:
1. Bindings require the supply,
2. This is in fact exactly that supply (verified on schematics).
Best regards,
Krzysztof
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