linux-kernel - Re: [PATCH v6 2/3] clk: mediatek: Add auxiliary bus support for sysclk reset

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Date:   Mon, 31 Oct 2022 05:57:48 +0000
From:   Rex-BC Chen (陳柏辰) 
        <Rex-BC.Chen@...iatek.com>
To:     "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "sboyd@...nel.org" <sboyd@...nel.org>,
        "mturquette@...libre.com" <mturquette@...libre.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "wenst@...omium.org" <wenst@...omium.org>,
        Runyang Chen (陈润洋) 
        <Runyang.Chen@...iatek.com>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Miles Chen (陳民樺) 
        <Miles.Chen@...iatek.com>,
        "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "nfraprado@...labora.com" <nfraprado@...labora.com>
Subject: Re: [PATCH v6 2/3] clk: mediatek: Add auxiliary bus support for
 sysclk reset

On Thu, 2022-10-27 at 16:46 -0700, Stephen Boyd wrote:
> Quoting Bo-Chen Chen (2022-10-21 03:48:03)
> > diff --git a/drivers/clk/mediatek/clk-mtk.c
> > b/drivers/clk/mediatek/clk-mtk.c
> > index 74408849ed86..61b7ee23738a 100644
> > --- a/drivers/clk/mediatek/clk-mtk.c
> > +++ b/drivers/clk/mediatek/clk-mtk.c
> > @@ -444,6 +444,63 @@ void mtk_clk_unregister_dividers(const struct
> > mtk_clk_divider *mcds, int num,
> 
> [..]
> > +int mtk_reset_controller_register(struct device *dev, const char
> > *name)
> > +{
> > +       struct auxiliary_device *adev;
> > +       int ret;
> > +
> > +       adev = mtk_reset_adev_alloc(dev, name);
> > +       if (IS_ERR(adev))
> > +               return PTR_ERR(adev);
> > +
> > +       ret = auxiliary_device_add(adev);
> > +       if (ret) {
> > +               auxiliary_device_uninit(adev);
> > +               return ret;
> > +       }
> > +
> > +       return devm_add_action_or_reset(dev,
> > mtk_reset_unregister_adev, adev);
> 
> Can we have devm_auxiliary_device_add() that sets the parent and
> registers the device?

Hello Stephen,

I can't find the definition of devm_auxiliary_device_add(). Is there
any information for this function?

BRs,
Bo-Chen