| From 173289a216e48c22bfb23a2000c8ce65155c555e Mon Sep 17 00:00:00 2001 |
| From: Khiem Nguyen <khiem.nguyen.xt@renesas.com> |
| Date: Fri, 24 Feb 2017 14:49:13 +0100 |
| Subject: [PATCH 022/286] arm64: dts: r8a7795: Upgrade to PSCI v1.0 to support |
| Suspend-to-RAM |
| |
| >From PSCI v1.0, Suspend-to-RAM is supported via SYSTEM_SUSPEND PSCI |
| function call. Hence, upgrade PSCI version for R-Car H3 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.xt@renesas.com> |
| Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> |
| [geert: Keep "arm,psci-0.2"] |
| Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| |
| (cherry picked from commit 71585040b77e7b388708dc35bdc49f106fa55a4a) |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| --- |
| arch/arm64/boot/dts/renesas/r8a7795.dtsi | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi |
| +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi |
| @@ -29,7 +29,7 @@ |
| }; |
| |
| psci { |
| - compatible = "arm,psci-0.2"; |
| + compatible = "arm,psci-1.0", "arm,psci-0.2"; |
| method = "smc"; |
| }; |
| |
