From fb00ff4c30a8cce32371e5d1abcbb33be1b6d506 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Fri, 19 Jun 2015 18:09:50 +0200 Subject: [PATCH] ARM: dts: imx53-qsb: select open-drain mode for i2c1 pads Both imx53-qsb and imx53-qsrb don't have external pull-up resistors on the I2C1 SCL and SDA lines populated. Select open-drain mode and enable the internal pull-up for both. Signed-off-by: Lucas Stach Signed-off-by: Philipp Zabel Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx53-qsb-common.dtsi | 5 +++-- arch/arm/boot/dts/imx53-qsrb.dts | 14 +------------- 2 files changed, 4 insertions(+), 15 deletions(-) diff --git a/arch/arm/boot/dts/imx53-qsb-common.dtsi b/arch/arm/boot/dts/imx53-qsb-common.dtsi index 181ae5e..43932bb 100644 --- a/arch/arm/boot/dts/imx53-qsb-common.dtsi +++ b/arch/arm/boot/dts/imx53-qsb-common.dtsi @@ -228,10 +228,11 @@ >; }; + /* open drain */ pinctrl_i2c1: i2c1grp { fsl,pins = < - MX53_PAD_CSI0_DAT8__I2C1_SDA 0xc0000000 - MX53_PAD_CSI0_DAT9__I2C1_SCL 0xc0000000 + MX53_PAD_CSI0_DAT8__I2C1_SDA 0x400001ec + MX53_PAD_CSI0_DAT9__I2C1_SCL 0x400001ec >; }; diff --git a/arch/arm/boot/dts/imx53-qsrb.dts b/arch/arm/boot/dts/imx53-qsrb.dts index 82d623d..66e47de 100644 --- a/arch/arm/boot/dts/imx53-qsrb.dts +++ b/arch/arm/boot/dts/imx53-qsrb.dts @@ -20,15 +20,7 @@ }; &iomuxc { - i2c1 { - /* open drain */ - pinctrl_i2c1_qsrb: i2c1grp-1 { - fsl,pins = < - MX53_PAD_CSI0_DAT8__I2C1_SDA 0x400001ec - MX53_PAD_CSI0_DAT9__I2C1_SCL 0x400001ec - >; - }; - + imx53-qsrb { pinctrl_pmic: pmicgrp { fsl,pins = < MX53_PAD_CSI0_DAT5__GPIO5_23 0x1e4 /* IRQ */ @@ -38,10 +30,6 @@ }; &i2c1 { - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_i2c1_qsrb>; - status = "okay"; - pmic: mc34708@8 { compatible = "fsl,mc34708"; pinctrl-names = "default"; -- 2.7.4