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SubjectRe: [PATCH] arm64: dts: qcom: qcs404-evb: Mark WCSS clocks protected
On Tue, Aug 13, 2019 at 08:09:42PM -0700, Bjorn Andersson wrote:
> '7d0c76bdf227 ("clk: qcom: Add WCSS gcc clock control for QCS404")'
> introduces two new clocks to gcc. These are not used before
> clk_disable_unused() and as such the clock framework tries to disable
> them.
>
> But on the EVB these registers are only accessible through TrustZone, so
> these clocks must be marked as "protected" to prevent the clock code
> from touching them.
>
> Numerical values are used as the constants are not yet available in a
> common tree.
>
> Reported-by: Mark Brown <broonie@kernel.org>
> Reported-by: Niklas Cassel <niklas.cassel@linaro.org>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> ---
> arch/arm64/boot/dts/qcom/qcs404-evb.dtsi | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi b/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
> index 2289b01ee9f0..501a7330dbc8 100644
> --- a/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
> @@ -61,7 +61,9 @@
> protected-clocks = <GCC_BIMC_CDSP_CLK>,
> <GCC_CDSP_CFG_AHB_CLK>,
> <GCC_CDSP_BIMC_CLK_SRC>,
> - <GCC_CDSP_TBU_CLK>;
> + <GCC_CDSP_TBU_CLK>,
> + <141>, /* GCC_WCSS_Q6_AHB_CLK */
> + <142>; /* GCC_WCSS_Q6_AXIM_CLK */
> };
>
> &pms405_spmi_regulators {
> --
> 2.18.0
>

Reviewed-by: Niklas Cassel <niklas.cassel@linaro.org>

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