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 <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/imx53-qsb-common.dtsi b/arch/arm/boot/dts/imx53-qsb-common.dtsi
index 181ae5e..43932bb 100644 (file)
--- 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 (file)
--- 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";