linux-kernel - Re: [PATCH v2 5/5] clk: qcom: dispcc-sm8250: handle MMCX power domain

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Message-ID: <CAA8EJppY3gnumEWHiVtm-T9vBDLVkpojVC-BD4qpfQ0rzhymtA@mail.gmail.com>
Date:   Thu, 5 Nov 2020 12:56:00 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Jonathan Marek <jonathan@...ek.ca>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        "open list:DRM DRIVER FOR MSM ADRENO GPU" 
        <linux-arm-msm@...r.kernel.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "open list:COMMON CLK FRAMEWORK" <linux-clk@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 5/5] clk: qcom: dispcc-sm8250: handle MMCX power domain

On Thu, 5 Nov 2020 at 05:42, Stephen Boyd <sboyd@...nel.org> wrote:
>
> Quoting Dmitry Baryshkov (2020-10-23 06:19:25)
> > On SM8250 MMCX power domain is required to access MMDS_GDSC registers.
> > This power domain is expressed as mmcx-supply regulator property. Use
> > this regulator as MDSS_GDSC supply.
> >
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> > ---
> >  drivers/clk/qcom/dispcc-sm8250.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/clk/qcom/dispcc-sm8250.c b/drivers/clk/qcom/dispcc-sm8250.c
> > index 07a98d3f882d..588575e1169d 100644
> > --- a/drivers/clk/qcom/dispcc-sm8250.c
> > +++ b/drivers/clk/qcom/dispcc-sm8250.c
> > @@ -963,6 +963,7 @@ static struct gdsc mdss_gdsc = {
> >         },
> >         .pwrsts = PWRSTS_OFF_ON,
> >         .flags = HW_CTRL,
> > +       .supply = "mmcx",
> >  };
> >
>
> Can this patch be applied to clk tree or will it break the tree without
> the dts/regulator bits in place?

It can be applied to clk tree. Regulator bits are already accepted by
Mark Brown.


-- 
With best wishes
Dmitry