Re: [PATCH 1/2] dt-bindings: hwinfo: samsung,exynos-chipid: Add exynos5515 compatible

[sashiko-bot@kernel.org]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Medium] Incomplete support for Exynos 5515 causes driver probe failure
--

--- Patch [1]: [PATCH 1/2] dt-bindings: hwinfo: samsung,exynos-chipid: Add exynos5515 compatible ---
commit 5ce6d6fa94d63e1a87277e33f24686ff951995c4
Author: Aiden Isik <aidenisik@member.fsf.org>

dt-bindings: hwinfo: samsung,exynos-chipid: Add exynos5515 compatible

This commit adds the samsung,exynos5515-chipid compatible string to the
exynos-chipid device tree binding. It specifies that it should use the
samsung,exynos850-chipid compatible string as a fallback.

> diff --git a/Documentation/devicetree/bindings/hwinfo/samsung,exynos-chipid.yaml b/Documentation/devicetree/bindings/hwinfo/samsung,exynos-chipid.yaml
> index b9cdfe52b62ff..619faf33214bd 100644
> --- a/Documentation/devicetree/bindings/hwinfo/samsung,exynos-chipid.yaml
> +++ b/Documentation/devicetree/bindings/hwinfo/samsung,exynos-chipid.yaml
> @@ -25,6 +25,7 @@ properties:
>        - items:
>            - enum:
>                - samsung,exynos2200-chipid
> +              - samsung,exynos5515-chipid

[Severity: Medium]
Will this compatible string cause a probe failure on Exynos 5515 hardware?

Because this binding uses the samsung,exynos850-chipid fallback, the
exynos-chipid driver will attempt to probe on Exynos 5515 hardware.
However, if the Exynos 5515 product ID is not added to the soc_ids array
in drivers/soc/samsung/exynos-chipid.c, exynos_product_id_to_name() will
return NULL:

drivers/soc/samsung/exynos-chipid.c:exynos_chipid_probe() {
    ...
    soc_dev_attr->soc_id = exynos_product_id_to_name(soc_info.product_id);
    if (!soc_dev_attr->soc_id)
        return dev_err_probe(dev, -ENODEV, "Unknown SoC\n");
    ...
}

Does the driver need a companion patch to add the Exynos 5515 product ID
so that it can successfully probe rather than returning -ENODEV?

>                - samsung,exynos7885-chipid
>                - samsung,exynos8895-chipid
>                - samsung,exynos9610-chipid

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260817-for-next-lucky7-chipid-v1-0-eb2908705c0d@member.fsf.org?part=1