[04/12] ARM: dts: apq8064: add i2c sleep pinctrl states.

Message ID 1456236866-2588-1-git-send-email-srinivas.kandagatla@linaro.org
State New
Headers show

Commit Message

Srinivas Kandagatla Feb. 23, 2016, 2:14 p.m.
This patch adds missing i2c pinctrl sleep states.
Also add 16mA drive strength to the pins so that we can detect wide
range of i2c devices on the other side of level shifters.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

---
 arch/arm/boot/dts/qcom-apq8064-pins.dtsi | 36 ++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/qcom-apq8064.dtsi      |  8 +++----
 2 files changed, 40 insertions(+), 4 deletions(-)

-- 
1.9.1

Patch

diff --git a/arch/arm/boot/dts/qcom-apq8064-pins.dtsi b/arch/arm/boot/dts/qcom-apq8064-pins.dtsi
index c711aca..ce15c67 100644
--- a/arch/arm/boot/dts/qcom-apq8064-pins.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064-pins.dtsi
@@ -19,6 +19,24 @@ 
 			pins = "gpio20", "gpio21";
 			function = "gsbi1";
 		};
+
+		pinconf {
+			pins = "gpio20", "gpio21";
+			drive-strength = <16>;
+			bias-disable;
+		};
+	};
+
+	i2c1_pins_sleep: i2c1_pins_sleep {
+		mux {
+			pins = "gpio20", "gpio21";
+			function = "gpio";
+		};
+		pinconf {
+			pins = "gpio20", "gpio21";
+			drive-strength = <2>;
+			bias-disable = <0>;
+		};
 	};
 
 	i2c3_pins: i2c3 {
@@ -26,6 +44,24 @@ 
 			pins = "gpio8", "gpio9";
 			function = "gsbi3";
 		};
+
+		pinconf {
+			pins = "gpio8", "gpio9";
+			drive-strength = <16>;
+			bias-disable;
+		};
+	};
+
+	i2c3_pins_sleep: i2c3_pins_sleep {
+		mux {
+			pins = "gpio8", "gpio9";
+			function = "gpio";
+		};
+		pinconf {
+			pins = "gpio8", "gpio9";
+			drive-strength = <2>;
+			bias-disable = <0>;
+		};
 	};
 
 	gsbi6_uart_2pins: gsbi6_uart_2pins {
diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index 3d95534b..3fb66b9 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -227,8 +227,8 @@ 
 
 			gsbi1_i2c: i2c@12460000 {
 				compatible = "qcom,i2c-qup-v1.1.1";
-				pinctrl-0 = <&i2c1_pins>;
-				pinctrl-names = "default";
+				pinctrl-0 = <&i2c1_pins &i2c1_pins_sleep>;
+				pinctrl-names = "default", "sleep";
 				reg = <0x12460000 0x1000>;
 				interrupts = <0 194 IRQ_TYPE_NONE>;
 				clocks = <&gcc GSBI1_QUP_CLK>, <&gcc GSBI1_H_CLK>;
@@ -274,8 +274,8 @@ 
 			ranges;
 			gsbi3_i2c: i2c@16280000 {
 				compatible = "qcom,i2c-qup-v1.1.1";
-				pinctrl-0 = <&i2c3_pins>;
-				pinctrl-names = "default";
+				pinctrl-0 = <&i2c3_pins &i2c3_pins_sleep>;
+				pinctrl-names = "default", "sleep";
 				reg = <0x16280000 0x1000>;
 				interrupts = <GIC_SPI 151 IRQ_TYPE_NONE>;
 				clocks = <&gcc GSBI3_QUP_CLK>,