From 1d41f36a68c0f4e9b01d563ce33bab5201858b54 Mon Sep 17 00:00:00 2001 From: Gaku Inami Date: Tue, 3 Jun 2014 21:02:59 +0900 Subject: [PATCH] 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 Acked-by: Magnus Damm Signed-off-by: Simon Horman --- 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"; + }; }; ðer { @@ -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; + }; +};