From: Khiem Nguyen <khiem.nguyen...@renesas.com> >From PSCI v1.0, Suspend-to-RAM is supported via SYSTEM_SUSPEND PSCI function call. Hence, upgrade PSCI version for R-Car M3-W 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 <khiem.nguyen...@renesas.com> Signed-off-by: Takeshi Kihara <takeshi.kihara...@renesas.com> [geert: Keep "arm,psci-0.2"] Signed-off-by: Geert Uytterhoeven <geert+rene...@glider.be> Signed-off-by: Simon Horman <horms+rene...@verge.net.au> --- 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 aa404ed9142e..dbf82bc6ba64 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", "arm,psci-0.2"; method = "smc"; }; -- 2.7.0.rc3.207.g0ac5344