[PATCH v1 0/6] ARM: dts: introduce Compulab IoT Gateway

[PATCH v1 0/6] ARM: dts: introduce Compulab IoT Gateway

[tyler]

From: Tyler Baker <tyler@opensourcefoundries.com>

The Compulab IoT Gateway is based on an NXP i.MX7D, dual core
Cortex-A7 clocking at 1GHz. It supports up to 2GB of DDR3,
and 32GB of eMMC flash. Onboard, there are two gigabit
ethernet controllers, 4 x USB2, RS485, and CAN.

It uses the same SoM as the cl-som-imx7, but includes a baseboard 
with additional I/O.

Compulab has provided patches for this platform based on v4.1. 
I've used these patches as reference to get things working on tip.

Changes for v1 (Requested by Fabio)
  * Squashed the dts build into the initial patch
  * Dropped the phy refclk patch from this series, submitting to PCI list
  * Removed fsl,spi-num-chipselects property
  * Removed LCD and DVI nodes, will follow up with a later series
  * s/fsl,uart-has-rtscts/uart-has-rtscts/g
  * Fixed regulator usage inside of simple-bus

The entire series is based on v4.15-rc2.

Tyler Baker (6):
  ARM: dts: imx7d-sbc-iot: add initial iot gateway dts
  ARM: dts: imx7d-cl-som: add nodes for usbh, and usbotg2
  ARM: dts: imx7s: add dma support
  ARM: dts: imx7s: add node and supplies for vdd1p2
  ARM: dts: imx7d-sbc-iot: enable PCIe peripheral
  ARM: dts: imx7s: add usb hsic phy domain

 arch/arm/boot/dts/Makefile               |   1 +
 arch/arm/boot/dts/imx7d-cl-som-imx7.dts  |  34 +++++--
 arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts | 169 +++++++++++++++++++++++++++++++
 arch/arm/boot/dts/imx7s.dtsi             |  29 +++++-
 4 files changed, 225 insertions(+), 8 deletions(-)
 create mode 100644 arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts

-- 
2.9.3

[PATCH v1 1/6] ARM: dts: imx7d-sbc-iot: add initial iot gateway dts

[tyler]

From: Tyler Baker <tyler@opensourcefoundries.com>

The Compulab IoT Gateway is based on an NXP i.MX7D, dual core
Cortex-A7 clocking at 1GHz. It supports up to 2GB of DDR3,
and 32GB of eMMC flash. Onboard, there are two gigabit
ethernet controllers, 4 x USB2, RS485, and CAN.

This platform is based on the imx7d-cl-som-imx7 module but
includes a baseboard with additional peripherals
which is what this device tree is meant to describe.

This work has been derrived from the Compulab Linux sources
based on v4.1.

Signed-off-by: Tyler Baker <tyler@opensourcefoundries.com>
Signed-off-by: Ilya Ledvich <ilya@compulab.co.il>
---
 arch/arm/boot/dts/Makefile               |   1 +
 arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts | 156 +++++++++++++++++++++++++++++++
 2 files changed, 157 insertions(+)
 create mode 100644 arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index d0381e9..0334137 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -515,6 +515,7 @@ dtb-$(CONFIG_SOC_IMX7D) += \
 	imx7d-nitrogen7.dtb \
 	imx7d-pico.dtb \
 	imx7d-sbc-imx7.dtb \
+	imx7d-sbc-iot-imx7.dtb \
 	imx7d-sdb.dtb \
 	imx7d-sdb-sht11.dtb \
 	imx7s-colibri-eval-v3.dtb \
diff --git a/arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts b/arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts
new file mode 100644
index 0000000..67aa4b7
--- /dev/null
+++ b/arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts
@@ -0,0 +1,156 @@
+/*
+ * Support for CompuLab SBC-IOT-iMX7 Single Board Computer
+ *
+ * Copyright (C) 2017 CompuLab Ltd. - http://www.compulab.co.il/
+ * Author: Ilya Ledvich <ilya@compulab.co.il>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "imx7d-cl-som-imx7.dts"
+
+/ {
+	model = "CompuLab SBC-IOT-iMX7";
+	compatible = "compulab,sbc-iot-imx7", "compulab,cl-som-imx7", "fsl,imx7d";
+};
+
+&ecspi3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi3 &pinctrl_ecspi3_cs>;
+	cs-gpios = <&gpio4 11 0>;
+	status = "okay";
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+};
+
+&i2c4 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4>;
+	status = "okay";
+
+	eeprom_iot@54 {
+		compatible = "atmel,24c08";
+		reg = <0x54>;
+		pagesize = <16>;
+	};
+};
+
+&iomuxc {
+	pinctrl_xpen: xpengrp {
+		fsl,pins = <
+			MX7D_PAD_LCD_DATA13__GPIO3_IO18		0x34 /* P7-4 - gpio82 */
+			MX7D_PAD_LCD_DATA12__GPIO3_IO17		0x34 /* P7-5 - gpio81 */
+		>;
+	};
+
+	pinctrl_ecspi3: ecspi3grp {
+		fsl,pins = <
+			MX7D_PAD_I2C1_SDA__ECSPI3_MOSI		0xf /* P7-8 */
+			MX7D_PAD_I2C1_SCL__ECSPI3_MISO		0xf /* P7-7 */
+			MX7D_PAD_I2C2_SCL__ECSPI3_SCLK		0xf /* P7-6 */
+		>;
+	};
+
+	pinctrl_ecspi3_cs: ecspi3_cs_grp {
+		fsl,pins = <
+			MX7D_PAD_I2C2_SDA__GPIO4_IO11		0x34 /* P7-9 */
+		>;
+	};
+
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX7D_PAD_GPIO1_IO09__I2C3_SDA		0x4000000f /* P7-3 */
+			MX7D_PAD_GPIO1_IO08__I2C3_SCL		0x4000000f /* P7-2 */
+		>;
+	};
+
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			MX7D_PAD_GPIO1_IO11__I2C4_SDA		0x4000000f
+			MX7D_PAD_GPIO1_IO10__I2C4_SCL		0x4000000f
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX7D_PAD_LCD_ENABLE__UART2_DCE_TX	0x79 /* P7-12 */
+			MX7D_PAD_LCD_CLK__UART2_DCE_RX		0x79 /* P7-13 */
+			MX7D_PAD_LCD_VSYNC__UART2_DCE_CTS	0x79 /* P7-11 */
+			MX7D_PAD_LCD_HSYNC__UART2_DCE_RTS	0x79 /* P7-10 */
+		>;
+	};
+
+	pinctrl_uart5: uart5grp {
+		fsl,pins = <
+			MX7D_PAD_I2C4_SDA__UART5_DCE_TX		0x79 /* RS232-TX */
+			MX7D_PAD_I2C4_SCL__UART5_DCE_RX		0x79 /* RS232-RX */
+			MX7D_PAD_I2C3_SDA__UART5_DCE_RTS	0x79 /* RS232-RTS */
+			MX7D_PAD_I2C3_SCL__UART5_DCE_CTS	0x79 /* RS232-CTS */
+		>;
+	};
+
+	pinctrl_uart7: uart7grp {
+		fsl,pins = <
+			MX7D_PAD_ECSPI2_MOSI__UART7_DCE_TX	0x79 /* R485-TX */
+			MX7D_PAD_ECSPI2_SCLK__UART7_DCE_RX	0x79 /* R485-RX */
+			MX7D_PAD_ECSPI2_SS0__UART7_DCE_CTS	0x79 /* R485-CTS */
+			MX7D_PAD_ECSPI2_MISO__UART7_DCE_RTS	0x79 /* R485-TTS */
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX7D_PAD_SD1_CMD__SD1_CMD		0x59
+			MX7D_PAD_SD1_CLK__SD1_CLK		0x19
+			MX7D_PAD_SD1_DATA0__SD1_DATA0		0x59
+			MX7D_PAD_SD1_DATA1__SD1_DATA1		0x59
+			MX7D_PAD_SD1_DATA2__SD1_DATA2		0x59
+			MX7D_PAD_SD1_DATA3__SD1_DATA3		0x59
+			MX7D_PAD_SD1_CD_B__GPIO5_IO0		0x59 /* CD */
+		>;
+	};
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	assigned-clocks = <&clks IMX7D_UART2_ROOT_SRC>;
+	assigned-clock-parents = <&clks IMX7D_OSC_24M_CLK>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&uart5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart5>;
+	assigned-clocks = <&clks IMX7D_UART5_ROOT_SRC>;
+	assigned-clock-parents = <&clks IMX7D_PLL_SYS_MAIN_240M_CLK>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&uart7 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart7>;
+	assigned-clocks = <&clks IMX7D_UART7_ROOT_SRC>;
+	assigned-clock-parents = <&clks IMX7D_PLL_SYS_MAIN_240M_CLK>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&usdhc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	cd-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
+	enable-sdio-wakeup;
+	status = "okay";
+};
-- 
2.9.3

[PATCH v1 2/6] ARM: dts: imx7d-cl-som: add nodes for usbh, and usbotg2

[tyler]

From: Tyler Baker <tyler@opensourcefoundries.com>

Add device tree nodes for the USB hub, and USB OTG. i2c2 on this
platform supports low state retention power state so lets use it.

Signed-off-by: Tyler Baker <tyler@opensourcefoundries.com>
---
 arch/arm/boot/dts/imx7d-cl-som-imx7.dts | 34 ++++++++++++++++++++++++++-------
 1 file changed, 27 insertions(+), 7 deletions(-)

diff --git a/arch/arm/boot/dts/imx7d-cl-som-imx7.dts b/arch/arm/boot/dts/imx7d-cl-som-imx7.dts
index ae45af1..49bd371 100644
--- a/arch/arm/boot/dts/imx7d-cl-som-imx7.dts
+++ b/arch/arm/boot/dts/imx7d-cl-som-imx7.dts
@@ -30,6 +30,16 @@
 		gpio = <&gpio1 5 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 	};
+
+	reg_usbh_nreset: regulator-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_host_nreset";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&pca9555 6 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+	};
 };
 
 &cpu0 {
@@ -199,6 +209,16 @@
 	status = "okay";
 };
 
+&usbotg2 {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usbh {
+	vbus-supply = <&reg_usbh_nreset>;
+	status = "okay";
+};
+
 &usdhc3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc3>;
@@ -247,13 +267,6 @@
 		>;
 	};
 
-	pinctrl_i2c2: i2c2grp {
-		fsl,pins = <
-			MX7D_PAD_I2C2_SDA__I2C2_SDA		0x4000007f
-			MX7D_PAD_I2C2_SCL__I2C2_SCL		0x4000007f
-		>;
-	};
-
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX	0x79
@@ -284,4 +297,11 @@
 			MX7D_PAD_LPSR_GPIO1_IO05__GPIO1_IO5	0x14 /* OTG PWREN */
 		>;
 	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX7D_PAD_LPSR_GPIO1_IO07__I2C2_SDA		0x4000000f
+			MX7D_PAD_LPSR_GPIO1_IO06__I2C2_SCL		0x4000000f
+		>;
+	};
 };
-- 
2.9.3

[PATCH v1 3/6] ARM: dts: imx7s: add dma support

[tyler]

From: Tyler Baker <tyler@opensourcefoundries.com>

Enable dma on all SPI interfaces.

Signed-off-by: Tyler Baker <tyler@opensourcefoundries.com>
---
 arch/arm/boot/dts/imx7s.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index 82ad26e..7b85659 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -700,6 +700,8 @@
 				clocks = <&clks IMX7D_ECSPI1_ROOT_CLK>,
 					<&clks IMX7D_ECSPI1_ROOT_CLK>;
 				clock-names = "ipg", "per";
+				dmas = <&sdma 0 7 1>, <&sdma 1 7 2>;
+				dma-names = "rx", "tx";
 				status = "disabled";
 			};
 
@@ -712,6 +714,8 @@
 				clocks = <&clks IMX7D_ECSPI2_ROOT_CLK>,
 					<&clks IMX7D_ECSPI2_ROOT_CLK>;
 				clock-names = "ipg", "per";
+				dmas = <&sdma 2 7 1>, <&sdma 3 7 2>;
+				dma-names = "rx", "tx";
 				status = "disabled";
 			};
 
@@ -724,6 +728,8 @@
 				clocks = <&clks IMX7D_ECSPI3_ROOT_CLK>,
 					<&clks IMX7D_ECSPI3_ROOT_CLK>;
 				clock-names = "ipg", "per";
+				dmas = <&sdma 4 7 1>, <&sdma 5 7 2>;
+				dma-names = "rx", "tx";
 				status = "disabled";
 			};
 
-- 
2.9.3

[PATCH v1 4/6] ARM: dts: imx7s: add node and supplies for vdd1p2

[tyler]

From: Tyler Baker <tyler@opensourcefoundries.com>

Add the regulator nodes and supplies for vdd1p2. This regulator is
used to power the GPC and USB HSIC PHY.

Signed-off-by: Tyler Baker <tyler@opensourcefoundries.com>
---
 arch/arm/boot/dts/imx7s.dtsi | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index 7b85659..151ab34 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -522,6 +522,20 @@
 					anatop-max-voltage = <1200000>;
 					anatop-enable-bit = <0>;
 				};
+
+				reg_1p2: regulator-vdd1p2@220 {
+					compatible = "fsl,anatop-regulator";
+					regulator-name = "vdd1p2";
+					regulator-min-microvolt = <1100000>;
+					regulator-max-microvolt = <1300000>;
+					anatop-reg-offset = <0x220>;
+					anatop-vol-bit-shift = <8>;
+					anatop-vol-bit-width = <5>;
+					anatop-min-bit-val = <8>;
+					anatop-min-voltage = <1100000>;
+					anatop-max-voltage = <1300000>;
+					anatop-enable-bit = <0>;
+				};
 			};
 
 			snvs: snvs@30370000 {
@@ -578,7 +592,7 @@
 				#interrupt-cells = <3>;
 				interrupt-parent = <&intc>;
 				#power-domain-cells = <1>;
-
+				vcc-supply = <&reg_1p2>;
 				pgc {
 					#address-cells = <1>;
 					#size-cells = <0>;
@@ -961,6 +975,7 @@
 				compatible = "usb-nop-xceiv";
 				clocks = <&clks IMX7D_USB_HSIC_ROOT_CLK>;
 				clock-names = "main_clk";
+				vcc-supply = <&reg_1p2>;
 			};
 
 			usdhc1: usdhc@30b40000 {
-- 
2.9.3

[PATCH v1 5/6] ARM: dts: imx7d-sbc-iot: enable PCIe peripheral

[tyler]

From: Tyler Baker <tyler@opensourcefoundries.com>

Add a PCIe device tree node to enable PCIe support.

Signed-off-by: Tyler Baker <tyler@opensourcefoundries.com>
---
 arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts b/arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts
index 67aa4b7..7f45fa2 100644
--- a/arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts
+++ b/arch/arm/boot/dts/imx7d-sbc-iot-imx7.dts
@@ -79,6 +79,12 @@
 		>;
 	};
 
+	pinctrl_pcie: pciegrp {
+		fsl,pins = <
+			MX7D_PAD_EPDC_BDR1__GPIO2_IO29		0x34 /* PCIe RST */
+		>;
+	};
+
 	pinctrl_uart2: uart2grp {
 		fsl,pins = <
 			MX7D_PAD_LCD_ENABLE__UART2_DCE_TX	0x79 /* P7-12 */
@@ -119,6 +125,13 @@
 	};
 };
 
+&pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pcie>;
+	reset-gpio = <&gpio2 29 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
 &uart2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart2>;
-- 
2.9.3

[PATCH v1 6/6] ARM: dts: imx7s: add usb hsic phy domain

[tyler]

From: Tyler Baker <tyler@opensourcefoundries.com>

The GPCv2 driver should control the MIPI, PCIe,
and USB HSIC PHY regulators. Add the USB HSIC
power domain to the GPC node.

Signed-off-by: Tyler Baker <tyler@opensourcefoundries.com>
---
 arch/arm/boot/dts/imx7s.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index 151ab34..9626a3e 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -602,6 +602,12 @@
 						reg = <IMX7_POWER_DOMAIN_PCIE_PHY>;
 						power-supply = <&reg_1p0d>;
 					};
+					pgc_usb_hsic_phy: pgc-usb-hsic-phy-domain {
+						#power-domain-cells = <0>;
+
+						reg = <IMX7_POWER_DOMAIN_USB_HSIC_PHY>;
+						power-supply = <&reg_1p2>;
+					};
 				};
 			};
 		};
-- 
2.9.3

Re: [PATCH v1 1/6] ARM: dts: imx7d-sbc-iot: add initial iot gateway dts

[Fabio Estevam]

On Tue, Dec 5, 2017 at 8:27 PM,  <tyler@opensourcefoundries.com> wrote:

> +&usdhc1 {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pinctrl_usdhc1>;
> +       cd-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
> +       wp-gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
> +       enable-sdio-wakeup;

This is a deprecated property.

Please use wakeup-source as stated in
Documentation/devicetree/bindings/mmc/mmc.txt

Re: [PATCH v1 2/6] ARM: dts: imx7d-cl-som: add nodes for usbh, and usbotg2

[Fabio Estevam]

On Tue, Dec 5, 2017 at 8:27 PM,  <tyler@opensourcefoundries.com> wrote:
> From: Tyler Baker <tyler@opensourcefoundries.com>
>
> Add device tree nodes for the USB hub, and USB OTG. i2c2 on this
> platform supports low state retention power state so lets use it.

Looks like the I2C2 fix should be a separate patch.

Re: [PATCH v1 3/6] ARM: dts: imx7s: add dma support

[Fabio Estevam]

On Tue, Dec 5, 2017 at 8:27 PM,  <tyler@opensourcefoundries.com> wrote:
> From: Tyler Baker <tyler@opensourcefoundries.com>
>
> Enable dma on all SPI interfaces.
>
> Signed-off-by: Tyler Baker <tyler@opensourcefoundries.com>

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>

Re: [PATCH v1 4/6] ARM: dts: imx7s: add node and supplies for vdd1p2

[Fabio Estevam]

On Tue, Dec 5, 2017 at 8:27 PM,  <tyler@opensourcefoundries.com> wrote:
> From: Tyler Baker <tyler@opensourcefoundries.com>
>
> Add the regulator nodes and supplies for vdd1p2. This regulator is
> used to power the GPC and USB HSIC PHY.
>
> Signed-off-by: Tyler Baker <tyler@opensourcefoundries.com>
> ---
>  arch/arm/boot/dts/imx7s.dtsi | 17 ++++++++++++++++-
>  1 file changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
> index 7b85659..151ab34 100644
> --- a/arch/arm/boot/dts/imx7s.dtsi
> +++ b/arch/arm/boot/dts/imx7s.dtsi
> @@ -522,6 +522,20 @@
>                                         anatop-max-voltage = <1200000>;
>                                         anatop-enable-bit = <0>;
>                                 };
> +
> +                               reg_1p2: regulator-vdd1p2@220 {

Using a unit address without a corresponding reg would give you a
warning with W=1.

Please see the patch I sent with Subject:
ARM: dts: imx7s: Add unit address and reg for the anatop nodes

Re: [PATCH v1 5/6] ARM: dts: imx7d-sbc-iot: enable PCIe peripheral

[Fabio Estevam]

On Tue, Dec 5, 2017 at 8:27 PM,  <tyler@opensourcefoundries.com> wrote:
> From: Tyler Baker <tyler@opensourcefoundries.com>
>
> Add a PCIe device tree node to enable PCIe support.
>
> Signed-off-by: Tyler Baker <tyler@opensourcefoundries.com>

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>

Re: [PATCH v1 6/6] ARM: dts: imx7s: add usb hsic phy domain

[Fabio Estevam]

On Tue, Dec 5, 2017 at 8:27 PM,  <tyler@opensourcefoundries.com> wrote:
> From: Tyler Baker <tyler@opensourcefoundries.com>
>
> The GPCv2 driver should control the MIPI, PCIe,
> and USB HSIC PHY regulators. Add the USB HSIC
> power domain to the GPC node.
>
> Signed-off-by: Tyler Baker <tyler@opensourcefoundries.com>

Looks good. I am assuming you tested USB HSIC operation on the mx7
compulab board, right?

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>