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

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Date:   Wed,  8 Mar 2023 17:38:22 -0600
From:   Sam Protsenko <semen.protsenko@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...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: [PATCH 7/7] arm64: dts: exynos: Remove clock from Exynos850 pmu_system_controller

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(-)

diff --git a/arch/arm64/boot/dts/exynos/exynos850.dtsi b/arch/arm64/boot/dts/exynos/exynos850.dtsi
index d67e98120313..aa077008b3be 100644
--- a/arch/arm64/boot/dts/exynos/exynos850.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos850.dtsi
@@ -200,7 +200,6 @@ gic: interrupt-controller@...01000 {
 		pmu_system_controller: system-controller@...60000 {
 			compatible = "samsung,exynos850-pmu", "syscon";
 			reg = <0x11860000 0x10000>;
-			clocks = <&cmu_apm CLK_GOUT_PMU_ALIVE_PCLK>;
 
 			reboot: syscon-reboot {
 				compatible = "syscon-reboot";
-- 
2.39.2