patches.renesas/0877-ARM-shmobile-koelsch-dts-Add-VDD-MPU-regulator-for-D.patch

From 953a3a3b6d767a422a0acafcdd26a9b8e0b19dce Mon Sep 17 00:00:00 2001
From: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Date: Tue, 3 Jun 2014 21:02:59 +0900
Subject: ARM: shmobile: koelsch dts: Add VDD MPU regulator for DVFS

The CA15 cluster is capable of voltage scaling. Add the regulator
in the i2c6 node, to allow the generic CPUFreq driver to use it.

Enable the i2c6 pin mux and the device node as well since the
da9210 is connected to that bus.

Note: In R-CAR Gen2, each frequency is using the same voltage,
and DVS control is not used. Therefore, this patch set the
voltage(Vmin/Vmax) to 1000mv.

Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 1d41f36a68c0f4e9b01d563ce33bab5201858b54)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7791-koelsch.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index 05d44f9b202f..95331d73042d 100644
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -293,6 +293,11 @@
 				 "msiof0_tx";
 		renesas,function = "msiof0";
 	};
+
+	i2c6_pins: i2c6 {
+		renesas,groups = "i2c6";
+		renesas,function = "i2c6";
+	};
 };
 
 &ether {
@@ -408,3 +413,19 @@
 		spi-cpha;
 	};
 };
+
+&i2c6 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c6_pins>;
+	status = "okay";
+
+	vdd_dvfs: regulator@68 {
+		compatible = "diasemi,da9210";
+		reg = <0x68>;
+
+		regulator-min-microvolt = <1000000>;
+		regulator-max-microvolt = <1000000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+};
-- 
2.1.2