[PATCH 2/5] ARM: dts: imx6qdl: tqma6: Add i2c bus recovery

[Alexander Stein]

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

Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>
---
 arch/arm/boot/dts/imx6qdl-mba6b.dtsi  |  5 ++++-
 arch/arm/boot/dts/imx6qdl-tqma6.dtsi  | 14 ++++++++++++++
 arch/arm/boot/dts/imx6qdl-tqma6a.dtsi |  7 ++++++-
 arch/arm/boot/dts/imx6qdl-tqma6b.dtsi |  7 ++++++-
 4 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/imx6qdl-mba6b.dtsi b/arch/arm/boot/dts/imx6qdl-mba6b.dtsi
index 2e3407790963..7d1cd7454c7f 100644
--- a/arch/arm/boot/dts/imx6qdl-mba6b.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-mba6b.dtsi
@@ -13,8 +13,11 @@ &fec {
 
 &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 51a3a5392c95..344ea935c7da 100644
--- a/arch/arm/boot/dts/imx6qdl-tqma6.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-tqma6.dtsi
@@ -52,6 +52,13 @@ MX6QDL_PAD_CSI0_DAT9__I2C1_SCL 0x4001b899
 		>;
 	};
 
+	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 @@ MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001b899
 		>;
 	};
 
+	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 bfb67da64b96..7dc3f0005b0f 100644
--- 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 at 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 @@ &fec {
 };
 
 &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 49c472285c06..dd0925766440 100644
--- 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 at 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";
 
-- 
2.25.1