linux-kernel - Re: [PATCH v2 1/1] spi/panel: dt-bindings: drop CPHA and CPOL from common properties

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Message-ID: <20220725231405.GA2931469-robh@kernel.org>
Date:   Mon, 25 Jul 2022 17:14:05 -0600
From:   Rob Herring <robh@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Marek Belisko <marek@...delico.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Maxime Ripard <mripard@...nel.org>,
        Pratyush Yadav <p.yadav@...com>, devicetree@...r.kernel.org,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        linux-spi@...r.kernel.org, Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
        David Airlie <airlied@...ux.ie>,
        Thierry Reding <thierry.reding@...il.com>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        Daniel Vetter <daniel@...ll.ch>,
        Mark Brown <broonie@...nel.org>,
        dri-devel@...ts.freedesktop.org,
        "H. Nikolaus Schaller" <hns@...delico.com>
Subject: Re: [PATCH v2 1/1] spi/panel: dt-bindings: drop CPHA and CPOL from
 common properties

On Fri, 22 Jul 2022 21:15:39 +0200, Krzysztof Kozlowski wrote:
> The spi-cpha and spi-cpol properties are device specific and should be
> accepted only if device really needs them.  Drop them from common
> spi-peripheral-props.yaml schema, mention in few panel drivers which use
> them and include instead in the SPI controller bindings.  The controller
> bindings will provide CPHA/CPOL type validation and one place for
> description.  Each device schema must list the properties if they are
> applicable.
> 
> Suggested-by: Jonathan Cameron <jic23@...nel.org>
> Suggested-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  .../bindings/display/panel/lgphilips,lb035q02.yaml    |  3 +++
>  .../bindings/display/panel/samsung,ld9040.yaml        |  3 +++
>  .../bindings/display/panel/sitronix,st7789v.yaml      |  3 +++
>  .../devicetree/bindings/display/panel/tpo,td.yaml     |  3 +++
>  .../devicetree/bindings/spi/spi-controller.yaml       | 11 +++++++++++
>  .../devicetree/bindings/spi/spi-peripheral-props.yaml | 10 ----------
>  6 files changed, 23 insertions(+), 10 deletions(-)
> 

Reviewed-by: Rob Herring <robh@...nel.org>

Unless Mark doesn't want to pick this up.