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Date: Mon, 4 Oct 2021 08:48:22 +0200
From: Yunus Bas <y.bas@...tec.de>
To: robh+dt@...nel.org, shawnguo@...nel.org, festevam@...il.com,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: s.hauer@...gutronix.de, kernel@...gutronix.de,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] ARM: dts: imx6: phytec: Add gpio pinctrl for i2c bus recovery
Make use of the i2c bus recovery feature and enable it on PHYTEC
phyCORE-based modules and boards.
Signed-off-by: Yunus Bas <y.bas@...tec.de>
---
arch/arm/boot/dts/imx6qdl-phytec-mira.dtsi | 30 +++++++++++++++----
.../boot/dts/imx6qdl-phytec-phycore-som.dtsi | 12 +++++++-
.../boot/dts/imx6ul-phytec-phycore-som.dtsi | 12 +++++++-
3 files changed, 47 insertions(+), 7 deletions(-)
diff --git a/arch/arm/boot/dts/imx6qdl-phytec-mira.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-mira.dtsi
index 0873f53ea275..120d6e997a4c 100644
--- a/arch/arm/boot/dts/imx6qdl-phytec-mira.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-phytec-mira.dtsi
@@ -145,8 +145,11 @@ &hdmi {
};
&i2c1 {
- pinctrl-names = "default";
+ pinctrl-names = "default", "gpio";
pinctrl-0 = <&pinctrl_i2c1>;
+ pinctrl-1 = <&pinctrl_i2c1_gpio>;
+ scl-gpios = <&gpio3 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio3 28 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
clock-frequency = <400000>;
status = "disabled";
@@ -185,8 +188,11 @@ i2c_rtc: rtc@68 {
};
&i2c2 {
- pinctrl-names = "default";
+ pinctrl-names = "default", "gpio";
pinctrl-0 = <&pinctrl_i2c2>;
+ pinctrl-1 = <&pinctrl_i2c2_gpio>;
+ scl-gpios = <&gpio4 12 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio4 13 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
clock-frequency = <100000>;
status = "disabled";
};
@@ -300,6 +306,20 @@ MX6QDL_PAD_KEY_ROW2__HDMI_TX_CEC_LINE 0x1f8b0
>;
};
+ pinctrl_i2c1: i2c1grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D21__I2C1_SCL 0x4001b8b1
+ MX6QDL_PAD_EIM_D28__I2C1_SDA 0x4001b8b1
+ >;
+ };
+
+ pinctrl_i2c1_gpio: i2c1gpiogrp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D21__GPIO3_IO21 0x4001b8b1
+ MX6QDL_PAD_EIM_D28__GPIO3_IO28 0x4001b8b1
+ >;
+ };
+
pinctrl_i2c2: i2c2grp {
fsl,pins = <
MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b8b1
@@ -307,10 +327,10 @@ MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b8b1
>;
};
- pinctrl_i2c1: i2c1grp {
+ pinctrl_i2c2_gpio: i2c2gpiogrp {
fsl,pins = <
- MX6QDL_PAD_EIM_D21__I2C1_SCL 0x4001b8b1
- MX6QDL_PAD_EIM_D28__I2C1_SDA 0x4001b8b1
+ MX6QDL_PAD_KEY_ROW3__GPIO4_IO13 0x4001b8b1
+ MX6QDL_PAD_KEY_COL3__GPIO4_IO12 0x4001b8b1
>;
};
diff --git a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
index a80aa08a37cb..94b254bfd054 100644
--- a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
@@ -78,8 +78,11 @@ &gpmi {
};
&i2c3 {
- pinctrl-names = "default";
+ pinctrl-names = "default", "gpio";
pinctrl-0 = <&pinctrl_i2c3>;
+ pinctrl-1 = <&pinctrl_i2c3_gpio>;
+ scl-gpios = <&gpio1 5 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio1 6 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
clock-frequency = <400000>;
status = "okay";
@@ -259,6 +262,13 @@ MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001b8b1
>;
};
+ pinctrl_i2c3_gpio: i2c3gpiogrp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_6__GPIO1_IO06 0x4001b8b1
+ MX6QDL_PAD_GPIO_5__GPIO1_IO05 0x4001b8b1
+ >;
+ };
+
pinctrl_ecspi1: ecspi1grp {
fsl,pins = <
MX6QDL_PAD_EIM_D16__ECSPI1_SCLK 0x100b1
diff --git a/arch/arm/boot/dts/imx6ul-phytec-phycore-som.dtsi b/arch/arm/boot/dts/imx6ul-phytec-phycore-som.dtsi
index 19a062635ff6..3cddc68917a0 100644
--- a/arch/arm/boot/dts/imx6ul-phytec-phycore-som.dtsi
+++ b/arch/arm/boot/dts/imx6ul-phytec-phycore-som.dtsi
@@ -68,8 +68,11 @@ &gpmi {
};
&i2c1 {
- pinctrl-names = "default";
+ pinctrl-names = "default", "gpio";
pinctrl-0 = <&pinctrl_i2c1>;
+ pinctrl-1 = <&pinctrl_i2c1_gpio>;
+ scl-gpios = <&gpio1 28 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio1 29 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
clock-frequency = <100000>;
status = "okay";
@@ -147,6 +150,13 @@ MX6UL_PAD_UART4_RX_DATA__I2C1_SDA 0x4001b8b0
>;
};
+ pinctrl_i2c1_gpio: i2cgpiogrp {
+ fsl,pins = <
+ MX6UL_PAD_UART4_TX_DATA__GPIO1_IO28 0x4001b8b0
+ MX6UL_PAD_UART4_RX_DATA__GPIO1_IO29 0x4001b8b0
+ >;
+ };
+
pinctrl_uart1: uart1grp {
fsl,pins = <
MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1
--
2.33.0
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