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ARM: dts: imx53-tx53: add support for I2C bus recovery

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The imx-i2c driver supports automatic bus recovery via the GPIO
function of the I2C pins. Enable this functionality for the Ka-Ro
electronics TX53 modules.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Lothar Waßmann 2017-10-11 13:07:40 +02:00 committed by Shawn Guo
parent d51916072c
commit ef4eec2bc3
2 changed files with 22 additions and 2 deletions
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5
arch/arm/boot/dts/imx53-tx53-x13x.dts
View File

@ -121,8 +121,11 @@
};
&i2c3 {
pinctrl-names = "default";
pinctrl-names = "default", "gpio";
pinctrl-0 = <&pinctrl_i2c3>;
pinctrl-1 = <&pinctrl_i2c3_gpio>;
scl-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
sda-gpios = <&gpio3 28 GPIO_ACTIVE_HIGH>;
status = "okay";
sgtl5000: codec@0a {

19
arch/arm/boot/dts/imx53-tx53.dtsi
View File

@ -233,8 +233,11 @@
};
&i2c1 {
pinctrl-names = "default";
pinctrl-names = "default", "gpio";
pinctrl-0 = <&pinctrl_i2c1>;
pinctrl-0 = <&pinctrl_i2c1_gpio>;
scl-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
sda-gpios = <&gpio3 28 GPIO_ACTIVE_HIGH>;
clock-frequency = <400000>;
status = "okay";
@ -394,6 +397,13 @@
>;
};
pinctrl_i2c1_gpio: i2c1-gpiogrp {
fsl,pins = <
MX53_PAD_EIM_D21__GPIO3_21 0x400001e6
MX53_PAD_EIM_D28__GPIO3_28 0x400001e6
>;
};
pinctrl_i2c3: i2c3grp {
fsl,pins = <
MX53_PAD_GPIO_3__I2C3_SCL 0x400001e4
@ -401,6 +411,13 @@
>;
};
pinctrl_i2c3_gpio: i2c3-gpiogrp {
fsl,pins = <
MX53_PAD_GPIO_3__GPIO1_3 0x400001e6
MX53_PAD_GPIO_6__GPIO1_6 0x400001e6
>;
};
pinctrl_nand: nandgrp {
fsl,pins = <
MX53_PAD_NANDF_WE_B__EMI_NANDF_WE_B 0x4