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

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Date:   Wed, 04 Nov 2020 18:42:56 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...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>
Cc:     linux-arm-msm@...r.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 5/5] clk: qcom: dispcc-sm8250: handle MMCX power domain

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?