On 02/11/2022 09:06, Aakarsh Jain wrote:
> commit "752d3a23d1f68de87e3c" which adds MFC codec device node
> for exynos3250 SOC. Since exynos3250.dtsi and exynos5420.dtsi are
> using same compatible string as "samsung,mfc-v7" but their
> node properties are different.As both SoCs have MFC v7 hardware
> module but with different clock hierarchy and complexity.
> So renaming compatible string from version specific to SOC based.
>
> Suggested-by: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>
> Fixes: 752d3a23d1f6 ("ARM: dts: add MFC codec device node for exynos3250")
There is no bug to fix and backporting is forbidden as it breaks the
usage of DTS in older kernel.
> Signed-off-by: Aakarsh Jain <aakarsh.jain@xxxxxxxxxxx>
> ---
> arch/arm/boot/dts/exynos3250.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
> index 326b9e0ed8d3..98105c64f7d9 100644
> --- a/arch/arm/boot/dts/exynos3250.dtsi
> +++ b/arch/arm/boot/dts/exynos3250.dtsi
> @@ -485,7 +485,7 @@
> };
>
> mfc: codec@13400000 {
> - compatible = "samsung,mfc-v7";
> + compatible = "samsung,exynos3250-mfc";
The change is non-bisectable and breaks using DTS in older kernel.
Best regards,
Krzysztof
