Re: [PATCH] ARM: qcom: Disable i2c device on gsbi4 for ipq806x

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Quoting Ansuel Smith (2020-03-13 12:58:16)
> diff --git a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
> index 554c65e7aa0e..580aec63030d 100644
> --- a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
> +++ b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
> @@ -21,14 +21,5 @@ mux {
>                                 };
>                         };
>                 };
> -
> -               gsbi@16300000 {
> -                       i2c@16380000 {
> -                               status = "ok";
> -                               clock-frequency = <200000>;
> -                               pinctrl-0 = <&i2c4_pins>;
> -                               pinctrl-names = "default";
> -                       };
> -               };
>         };
>  };
> diff --git a/drivers/clk/qcom/gcc-ipq806x.c b/drivers/clk/qcom/gcc-ipq806x.c
> index b0eee0903807..75706807e6cf 100644
> --- a/drivers/clk/qcom/gcc-ipq806x.c
> +++ b/drivers/clk/qcom/gcc-ipq806x.c
> @@ -782,7 +782,7 @@ static struct clk_rcg gsbi4_qup_src = {
>                         .parent_names = gcc_pxo_pll8,
>                         .num_parents = 2,
>                         .ops = &clk_rcg_ops,
> -                       .flags = CLK_SET_PARENT_GATE,
> +                       .flags = CLK_SET_PARENT_GATE | CLK_IGNORE_UNUSED,

A better solution is to use the protected-clocks property so we don't
try to touch these clks at all on this device. So this whole patch can
be routed through arm-soc and remove the i2c node and add some dt
property to the gcc node.

>                 },
>         },
>  };




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