Re: [PATCH v3 18/25] dt-bindings: media: imx258: Add alternate compatible strings

From: Conor Dooley
Date: Wed Apr 03 2024 - 12:15:04 EST


On Wed, Apr 03, 2024 at 09:03:47AM -0600, git@xxxxxxxxxxxx wrote:
> From: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
>
> There are a number of variants of the imx258 modules that can not
> be differentiated at runtime, so add compatible strings for the
> PDAF variant.
>
> Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
> Signed-off-by: Luis Garcia <git@xxxxxxxxxxxx>
> ---
> .../devicetree/bindings/media/i2c/sony,imx258.yaml | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml b/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml
> index bee61a443b23..c978abc0cdb3 100644
> --- a/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml
> +++ b/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml
> @@ -13,11 +13,16 @@ description: |-
> IMX258 is a diagonal 5.867mm (Type 1/3.06) 13 Mega-pixel CMOS active pixel
> type stacked image sensor with a square pixel array of size 4208 x 3120. It
> is programmable through I2C interface. Image data is sent through MIPI
> - CSI-2.
> + CSI-2. The sensor exists in two different models, a standard variant
> + (IMX258) and a variant with phase detection autofocus (IMX258-PDAF).
> + The camera module does not expose the model through registers, so the
> + exact model needs to be specified.
>
> properties:
> compatible:
> - const: sony,imx258
> + enum:
> + - sony,imx258
> + - sony,imx258-pdaf

Does the pdaf variant support all of the features/is it register
compatible with the regular variant? If it is, the regular variant
should be a fallback compatible.

Cheers,
Conor.

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