From e1e47fbca668507a81bb388fcae044b89d112ecc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pawe=C5=82=20Chmiel?= Date: Sat, 7 Nov 2020 14:39:26 +0100 Subject: [PATCH] arm64: dts: exynos: Correct psci compatible used on Exynos7 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It's not possible to reboot or poweroff Exynos7420 using PSCI. Instead we need to use syscon reboot/poweroff drivers, like it's done for other Exynos SoCs. This was confirmed by checking vendor source and testing it on Samsung Galaxy S6 device based on this SoC. To be able to use custom restart/poweroff handlers instead of PSCI functions, we need to correct psci compatible. This also requires us to provide function ids for CPU_ON and CPU_OFF. Fixes: fb026cb65247 ("arm64: dts: Add reboot node for exynos7") Fixes: b9024cbc937d ("arm64: dts: Add initial device tree support for exynos7") Signed-off-by: Paweł Chmiel Link: https://lore.kernel.org/r/20201107133926.37187-2-pawel.mikolaj.chmiel@gmail.com Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/exynos7.dtsi | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi b/arch/arm64/boot/dts/exynos/exynos7.dtsi index fa3ad6bcf562..661f9c1027e8 100644 --- a/arch/arm64/boot/dts/exynos/exynos7.dtsi +++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi @@ -79,8 +79,10 @@ }; psci { - compatible = "arm,psci-0.2"; + compatible = "arm,psci"; method = "smc"; + cpu_off = <0x84000002>; + cpu_on = <0xC4000003>; }; soc: soc@0 {