From 64b22b2594b1832ad21fce4969818e774d329551 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Tue, 23 Feb 2016 14:14:26 +0000 Subject: [PATCH] ARM: dts: apq8064: add i2c sleep pinctrl states. 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 Signed-off-by: Andy Gross --- 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 c711acaa3938..ce15c674690f 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 ec11d4b30d02..7ed7999f4cb1 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 = ; clocks = <&gcc GSBI3_QUP_CLK>, -- 2.20.1