linux-kernel - Re: [PATCH] Revert "dt-bindings: usb: mtk-xhci: Make all clocks required"

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Message-ID: <c0904c83-d264-41a7-3a3e-4253dfc36004@collabora.com>
Date:   Mon, 11 Jul 2022 11:35:35 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     kernel@...labora.com, Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH] Revert "dt-bindings: usb: mtk-xhci: Make all clocks
 required"

Il 08/07/22 21:26, Nícolas F. R. A. Prado ha scritto:
> This reverts commit ebc4969ae125e65fdb563f66f4bfa7aec95f7eb4. That
> commit was supposed to make the binding better reflect the MediaTek XHCI
> hardware block by requiring all clocks to be present. But doing that
> also causes too much noise in the devicetrees, since it requires
> updating old MediaTek DTs to add clock handles for the fixed clocks, and
> going forward every new clock added to the binding would require even
> more updates.
> 
> The commit also didn't update the example to match the changes, causing
> additional warnings.
> 
> Instead let's keep the clocks optional so that old devicetrees can keep
> omitting the fixed clocks, and we'll just add the clocks as required on
> new DTs.
> 
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
> Reviewed-by: Chunfeng Yun <chunfeng.yun@...iatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>