ARM: dts: imx6qdl: tqma6: Add i2c bus recovery

Add the pinmuxing and GPIO settings for SCL/SDA for i2c1 & i2c3.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6qdl-mba6b.dtsi b/arch/arm/boot/dts/imx6qdl-mba6b.dtsi
index 2e34077..7d1cd74 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-mba6b.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-mba6b.dtsi
@@ -13,8 +13,11 @@
 
 &i2c1 {
        clock-frequency = <100000>;
-       pinctrl-names = "default";
+       pinctrl-names = "default", "gpio";
        pinctrl-0 = <&pinctrl_i2c1>;
+       pinctrl-1 = <&pinctrl_i2c1_recovery>;
+       scl-gpios = <&gpio5 27 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+       sda-gpios = <&gpio5 26 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
        status = "okay";
 };
 

diff --git a/arch/arm/boot/dts/imx6qdl-tqma6.dtsi b/arch/arm/boot/dts/imx6qdl-tqma6.dtsi
index 51a3a53..344ea93 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-tqma6.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-tqma6.dtsi
@@ -52,6 +52,13 @@
                >;
        };
 
+       pinctrl_i2c1_recovery: i2c1recoverygrp {
+               fsl,pins = <
+                       MX6QDL_PAD_CSI0_DAT8__GPIO5_IO26 0x4001b899
+                       MX6QDL_PAD_CSI0_DAT9__GPIO5_IO27 0x4001b899
+               >;
+       };
+
        pinctrl_i2c3: i2c3grp {
                fsl,pins = <
                        MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001b899
@@ -59,6 +66,13 @@
                >;
        };
 
+       pinctrl_i2c3_recovery: i2c3recoverygrp {
+               fsl,pins = <
+                       MX6QDL_PAD_GPIO_5__GPIO1_IO05 0x4001b899
+                       MX6QDL_PAD_GPIO_6__GPIO1_IO06 0x4001b899
+               >;
+       };
+
        pinctrl_pmic: pmicgrp {
                fsl,pins = <
                        MX6QDL_PAD_NANDF_RB0__GPIO6_IO10 0x1b099 /* PMIC irq */

diff --git a/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi b/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi
index bfb67da..7dc3f00 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-tqma6a.dtsi
@@ -4,6 +4,8 @@
  * Copyright 2013-2017 Markus Niebel <Markus.Niebel@tq-group.com>
  */
 
+#include <dt-bindings/gpio/gpio.h>
+
 &fec {
        interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
                              <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
@@ -11,8 +13,11 @@
 };
 
 &i2c1 {
-       pinctrl-names = "default";
+       pinctrl-names = "default", "gpio";
        pinctrl-0 = <&pinctrl_i2c1>;
+       pinctrl-1 = <&pinctrl_i2c1_recovery>;
+       scl-gpios = <&gpio5 27 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+       sda-gpios = <&gpio5 26 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
        clock-frequency = <100000>;
        status = "okay";
 

diff --git a/arch/arm/boot/dts/imx6qdl-tqma6b.dtsi b/arch/arm/boot/dts/imx6qdl-tqma6b.dtsi
index 49c4722..dd09257 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-tqma6b.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-tqma6b.dtsi
@@ -4,9 +4,14 @@
  * Copyright 2013-2017 Markus Niebel <Markus.Niebel@tq-group.com>
  */
 
+#include <dt-bindings/gpio/gpio.h>
+
 &i2c3 {
-       pinctrl-names = "default";
+       pinctrl-names = "default", "gpio";
        pinctrl-0 = <&pinctrl_i2c3>;
+       pinctrl-1 = <&pinctrl_i2c3_recovery>;
+       scl-gpios = <&gpio1 5 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+       sda-gpios = <&gpio1 6 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
        clock-frequency = <100000>;
        status = "okay";