linux-kernel - Re: [PATCH v2 07/23] clk: mediatek: clk-mtk: Add dummy clock ops

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Message-ID: <20221228072414.26391-1-miles.chen@mediatek.com>
Date:   Wed, 28 Dec 2022 15:24:14 +0800
From:   Miles Chen <miles.chen@...iatek.com>
To:     <angelogioacchino.delregno@...labora.com>
CC:     <chun-jie.chen@...iatek.com>, <daniel@...rotopia.org>,
        <devicetree@...r.kernel.org>, <fparent@...libre.com>,
        <ikjn@...omium.org>, <johnson.wang@...iatek.com>,
        <jose.exposito89@...il.com>, <kernel@...labora.com>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-clk@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <matthias.bgg@...il.com>,
        <miles.chen@...iatek.com>, <msp@...libre.com>,
        <mturquette@...libre.com>, <nfraprado@...labora.com>,
        <pablo.sun@...iatek.com>, <rex-bc.chen@...iatek.com>,
        <robh+dt@...nel.org>, <ryder.lee@...nel.org>,
        <sam.shih@...iatek.com>, <sboyd@...nel.org>,
        <weiyi.lu@...iatek.com>, <wenst@...omium.org>,
        <y.oudjana@...tonmail.com>, <yangyingliang@...wei.com>
Subject: Re: [PATCH v2 07/23] clk: mediatek: clk-mtk: Add dummy clock ops

Hi Angelo,

> In order to migrate some (few) old clock drivers to the common
> mtk_clk_simple_probe() function, add dummy clock ops to be able
> to insert a dummy clock with ID 0 at the beginning of the list.
>

...snip...
 
> +/*
> + * We need the clock IDs to start from zero but to maintain devicetree
> + * backwards compatibility we can't change bindings to start from zero.
> + * Only a few platforms are affected, so we solve issues given by the
> + * commonized MTK clocks probe function(s) by adding a dummy clock at
> + * the beginning where needed.
> + */
> +#define CLK_DUMMY		0
>

Reviewed-by: Miles Chen <miles.chen@...iatek.com> 


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