[PATCH v2] ARM: shmobile: gose: Add da9063 PMIC device node for system restart

[Geert Uytterhoeven <geert+renesas@glider.be>]

Enable i2c6, and add a device node for the da9063 PMIC, with subnodes
for rtc and wdt.  Regulator support is not yet included.

This allows the system to be restarted when the watchdog timer times
out, or when a system restart is requested.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Tested using 'reboot -f' and 'cat > /dev/watchdog' (and wait).

v2:
  - Now also confirmed by schematics.
---
 arch/arm/boot/dts/r8a7793-gose.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7793-gose.dts b/arch/arm/boot/dts/r8a7793-gose.dts
index 6329d9d2e8a3e3f4..9b6902834b5d3f6c 100644
--- a/arch/arm/boot/dts/r8a7793-gose.dts
+++ b/arch/arm/boot/dts/r8a7793-gose.dts
@@ -576,6 +576,27 @@
 	};
 };
 
+&i2c6 {
+	status = "okay";
+	clock-frequency = <100000>;
+
+	pmic@58 {
+		compatible = "dlg,da9063";
+		reg = <0x58>;
+		interrupt-parent = <&irqc0>;
+		interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-controller;
+
+		rtc {
+			compatible = "dlg,da9063-rtc";
+		};
+
+		wdt {
+			compatible = "dlg,da9063-watchdog";
+		};
+	};
+};
+
 &rcar_sound {
 	pinctrl-0 = <&sound_pins &sound_clk_pins>;
 	pinctrl-names = "default";
-- 
1.9.1