[PATCH v4] ARM: DT: apq8064: Add i2c device nodes

[Kiran Padwal]

This patch adds i2c pinctrl DT node for IFC6410 board.
It also adds necessary DT support for i2c eeprom which is present on
IFC6410.

Tested on IFC6410 board.

Signed-off-by: Kiran Padwal <kiran.padwal at smartplayin.com>
---
Changes since v3:
 - Removed pinctrl DT node.

Changes since v2:
 - Renamed pinmux i2c subnode "i2c1_pinmux" to "i2c1".
 - Removed labes of node.
 - Used canonical value as "okay" instead of "ok".
 - Used macros.

Changes since v1:
 - Renamed pinmux phandle "qcom_pinmux" to "tlmm_pinmux".
 - Updated pinmux interrupt.

 arch/arm/boot/dts/qcom-apq8064-ifc6410.dts |   27 ++++++++++++++++++
 arch/arm/boot/dts/qcom-apq8064.dtsi        |   42 ++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
index 90db8af..3573cd7 100644
--- a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
@@ -5,6 +5,33 @@
 	compatible = "qcom,apq8064-ifc6410", "qcom,apq8064";
 
 	soc {
+		pinctrl at 800000 {
+			i2c1_pins: i2c1 {
+				mux {
+					pins = "gpio20", "gpio21";
+					function = "gsbi1";
+				};
+			};
+		};
+
+		gsbi at 12440000 {
+			status = "okay";
+			qcom,mode = <GSBI_PROT_I2C>;
+
+			i2c at 12460000 {
+				status = "okay";
+				clock-frequency = <200000>;
+				pinctrl-0 = <&i2c1_pins>;
+				pinctrl-names = "default";
+
+				eeprom: eeprom at 52 {
+					compatible = "atmel,24c128";
+					reg = <0x52>;
+					pagesize = <32>;
+				};
+			};
+		};
+
 		gsbi at 16600000 {
 			status = "ok";
 			qcom,mode = <GSBI_PROT_I2C_UART>;
diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index b1e476a..fddaeb7 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -156,6 +156,48 @@
 			regulator;
 		};
 
+		gsbi1: gsbi at 12440000 {
+			status = "disabled";
+			compatible = "qcom,gsbi-v1.0.0";
+			reg = <0x12440000 0x100>;
+			clocks = <&gcc GSBI1_H_CLK>;
+			clock-names = "iface";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+
+			i2c1: i2c at 12460000 {
+				compatible = "qcom,i2c-qup-v1.1.1";
+				reg = <0x12460000 0x1000>;
+				interrupts = <0 194 IRQ_TYPE_NONE>;
+				clocks = <&gcc GSBI1_QUP_CLK>, <&gcc GSBI1_H_CLK>;
+				clock-names = "core", "iface";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+
+		gsbi2: gsbi at 12480000 {
+			status = "disabled";
+			compatible = "qcom,gsbi-v1.0.0";
+			reg = <0x12480000 0x100>;
+			clocks = <&gcc GSBI2_H_CLK>;
+			clock-names = "iface";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+
+			i2c2: i2c at 124a0000 {
+				compatible = "qcom,i2c-qup-v1.1.1";
+				reg = <0x124a0000 0x1000>;
+				interrupts = <0 196 IRQ_TYPE_NONE>;
+				clocks = <&gcc GSBI2_QUP_CLK>, <&gcc GSBI2_H_CLK>;
+				clock-names = "core", "iface";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+
 		gsbi7: gsbi at 16600000 {
 			status = "disabled";
 			compatible = "qcom,gsbi-v1.0.0";
-- 
1.7.9.5