RE: [PATCH 01/17] dt-bindings: hwinfo: samsung,exynos-chipid: add specific compatibles for existing SoC

Alim Akhtar
2023-11-09T17:52:28Z

> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Sent: Wednesday, November 8, 2023 4:13 PM
> To: David Airlie <airlied@gmail.com>; Daniel Vetter <daniel@ffwll.ch>;
> Maarten Lankhorst <maarten.lankhorst@linux.intel.com>; Maxime Ripard
> <mripard@kernel.org>; Thomas Zimmermann <tzimmermann@suse.de>;
> Rob Herring <robh+dt@kernel.org>; Krzysztof Kozlowski
> <krzysztof.kozlowski+dt@linaro.org>; Conor Dooley
> <conor+dt@kernel.org>; Alim Akhtar <alim.akhtar@samsung.com>; Andi
> Shyti <andi.shyti@kernel.org>; Jonathan Cameron <jic23@kernel.org>; Lars-
> Peter Clausen <lars@metafoo.de>; Lee Jones <lee@kernel.org>; Ulf
> Hansson <ulf.hansson@linaro.org>; Tomasz Figa <tomasz.figa@gmail.com>;
> Sylwester Nawrocki <s.nawrocki@samsung.com>; Linus Walleij
> <linus.walleij@linaro.org>; Thierry Reding <thierry.reding@gmail.com>; Uwe
> Kleine-König <u.kleine-koenig@pengutronix.de>; Alessandro Zummo
> <a.zummo@towertech.it>; Alexandre Belloni
> <alexandre.belloni@bootlin.com>; Greg Kroah-Hartman
> <gregkh@linuxfoundation.org>; Jiri Slaby <jirislaby@kernel.org>; Liam
> Girdwood <lgirdwood@gmail.com>; Mark Brown <broonie@kernel.org>;
> Jaehoon Chung <jh80.chung@samsung.com>; Sam Protsenko
> <semen.protsenko@linaro.org>; dri-devel@lists.freedesktop.org;
> devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-
> kernel@lists.infradead.org; linux-samsung-soc@vger.kernel.org; linux-
> i2c@vger.kernel.org; linux-iio@vger.kernel.org; linux-mmc@vger.kernel.org;
> linux-gpio@vger.kernel.org; linux-pwm@vger.kernel.org; linux-
> rtc@vger.kernel.org; linux-serial@vger.kernel.org; alsa-devel@alsa-
> project.org; linux-sound@vger.kernel.org
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Subject: [PATCH 01/17] dt-bindings: hwinfo: samsung,exynos-chipid: add
> specific compatibles for existing SoC
>
> Samsung Exynos SoC reuses several devices from older designs, thus
> historically we kept the old (block's) compatible only. This works fine and
> there is no bug here, however guidelines expressed in
> Documentation/devicetree/bindings/writing-bindings.rst state that:
> 1. Compatibles should be specific.
> 2. We should add new compatibles in case of bugs or features.
>
> Add compatibles specific to each SoC in front of all old-SoC-like compatibles.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>

> ---
>
> I propose to take the patch through Samsung SoC (me). See cover letter for
> explanation.
> ---
> .../bindings/hwinfo/samsung,exynos-chipid.yaml | 17 ++++++++++++++---
> 1 file changed, 14 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/hwinfo/samsung,exynos-
> chipid.yaml
> b/Documentation/devicetree/bindings/hwinfo/samsung,exynos-chipid.yaml
> index 95cbdcb56efe..45f3d468db7c 100644
> --- a/Documentation/devicetree/bindings/hwinfo/samsung,exynos-
> chipid.yaml
> +++ b/Documentation/devicetree/bindings/hwinfo/samsung,exynos-
> chipid.yam
> +++ l
> @@ -11,9 +11,20 @@ maintainers:
>
> properties:
> compatible:
> - enum:
> - - samsung,exynos4210-chipid
> - - samsung,exynos850-chipid
> + oneOf:
> + - enum:
> + - samsung,exynos4210-chipid
> + - samsung,exynos850-chipid
> + - items:
> + - enum:
> + - samsung,exynos5433-chipid
> + - samsung,exynos7-chipid
> + - const: samsung,exynos4210-chipid
> + - items:
> + - enum:
> + - samsung,exynos7885-chipid
> + - samsung,exynosautov9-chipid
> + - const: samsung,exynos850-chipid
>
> reg:
> maxItems: 1
> --
> 2.34.1