Re: [PATCH 2/2] clk: qcom: camcc-sm8250: Fix topology around titan_top power domain

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On Thu, 19 May 2022 at 23:41, Vladimir Zapolskiy
<vladimir.zapolskiy@xxxxxxxxxx> wrote:
>
> On SM8250 two found VFE GDSC power domains shall not be operated, if
> titan top is turned off, thus the former power domains will be set as
> subdomains by a GDSC registration routine.
>
> Fixes: 5d66ca79b58c ("clk: qcom: Add camera clock controller driver for SM8250")
> Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@xxxxxxxxxx>
> ---
>  drivers/clk/qcom/camcc-sm8250.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/drivers/clk/qcom/camcc-sm8250.c b/drivers/clk/qcom/camcc-sm8250.c
> index 439eaafdcc86..d68376077d51 100644
> --- a/drivers/clk/qcom/camcc-sm8250.c
> +++ b/drivers/clk/qcom/camcc-sm8250.c
> @@ -2205,6 +2205,8 @@ static struct clk_branch cam_cc_sleep_clk = {
>         },
>  };
>
> +static struct gdsc titan_top_gdsc;
> +
>  static struct gdsc bps_gdsc = {
>         .gdscr = 0x7004,
>         .pd = {
> @@ -2238,6 +2240,7 @@ static struct gdsc ife_0_gdsc = {
>                 .name = "ife_0_gdsc",
>         },
>         .flags = POLL_CFG_GDSCR,
> +       .parent = &titan_top_gdsc.pd,
>         .pwrsts = PWRSTS_OFF_ON,
>  };
>
> @@ -2247,6 +2250,7 @@ static struct gdsc ife_1_gdsc = {
>                 .name = "ife_1_gdsc",
>         },
>         .flags = POLL_CFG_GDSCR,
> +       .parent = &titan_top_gdsc.pd,
>         .pwrsts = PWRSTS_OFF_ON,
>  };
>
> --
> 2.33.0
>

Reviewed-by: Robert Foss <robert.foss@xxxxxxxxxx>



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