arm64: dts: renesas: ebisu: Add PMIC DDR0 Backup Power config

On Ebisu the DDR0 power rail needs to be kept powered when backup mode is
enabled.  Reflect this in the "rohm,ddr-backup-power" property for the
BD9571MWV PMIC node.

The accessory power switch (SW23) is a toggle switch, hence specify
"rohm,rstbmode-level".

Based on advice from Geert Uytterhoeven.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
index 18a99d2e1ea5a648208c54bf02e522ef93674107..0e873ccfd9e5e48695e06473c3591d5ff526cbac 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
@@ -466,6 +466,8 @@ pmic: pmic@30 {
                #interrupt-cells = <2>;
                gpio-controller;
                #gpio-cells = <2>;
+               rohm,ddr-backup-power = <0x1>;
+               rohm,rstbmode-level;
        };
 };