linux-kernel - Re: [PATCH 7/7] arm64: dts: exynos: Remove clock from Exynos850 pmu_system

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Date:   Mon, 13 Mar 2023 08:26:33 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Sam Protsenko <semen.protsenko@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Tomasz Figa <tomasz.figa@...il.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Chanho Park <chanho61.park@...sung.com>,
        David Virag <virag.david003@...il.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] arm64: dts: exynos: Remove clock from Exynos850
 pmu_system_controller

On 09/03/2023 00:38, Sam Protsenko wrote:
> As described in the corresponding binding documentation for
> "samsung,exynos850-pmu", the "clocks" property should be used for
> specifying CLKOUT mux inputs. Therefore, the clock provided to exynos850
> pmu_system_controller is incorrect and should be removed. Instead of
> making syscon regmap keep that clock running for PMU accesses, it should
> be made always running in the clock driver, because the kernel is not
> the only software accessing PMU registers on Exynos850 platform.
> 
> Signed-off-by: Sam Protsenko <semen.protsenko@...aro.org>
> ---
>  arch/arm64/boot/dts/exynos/exynos850.dtsi | 1 -
>  1 file changed, 1 deletion(-)

To avoid any bisectability issues, I will apply this in the next cycle.

Best regards,
Krzysztof