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@xxxxxxxxxx> --- arch/arm/boot/dts/qcom-apq8064-pins.dtsi | 36 ++++++++++++++++++++++++++++++++ arch/arm/boot/dts/qcom-apq8064.dtsi | 8 +++---- 2 files changed, 40 insertions(+), 4 deletions(-) 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>, -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html