[PATCH 2/2] arm64: dts: r8a7796: Upgrade to PSCI v1.0 to support Suspend-to-RAM
From: geert+renesas@glider.be (Geert Uytterhoeven)
Date: 2017-02-17 17:00:32
Also in:
linux-devicetree, linux-renesas-soc
Subsystem:
arm/risc-v/renesas architecture, the rest · Maintainers:
Geert Uytterhoeven, Magnus Damm, Linus Torvalds
From: Khiem Nguyen <redacted>
From PSCI v1.0, Suspend-to-RAM is supported via SYSTEM_SUSPEND PSCI
function call. Hence, upgrade PSCI version for R-Car M3 to support Suspend-to-RAM. The Suspend-to-RAM is highly dependent on ARM Trusted Firwmare support since necessary callback functions will be registered after a query to ARM Trusted Firmware about SYSTEM_SUSPEND support. Since PSCI v1.0 is backward compatible with PSCI v0.2, CPU Hotplug and CPUIdle should be able to work normally with this change. Signed-off-by: Khiem Nguyen <redacted> Signed-off-by: Takeshi Kihara <redacted> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- Khiem: I've updated your email address. --- arch/arm64/boot/dts/renesas/r8a7796.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
index 0cd83974e42154c0..0cfcc15e9177159a 100644
--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi@@ -29,7 +29,7 @@ }; psci { - compatible = "arm,psci-0.2"; + compatible = "arm,psci-1.0"; method = "smc"; };
--
1.9.1