On Wed, Jun 28, 2017 at 02:35:31PM +0200, Romain Perier wrote:
> From: Jose Alarcon <jose.alarcon@xxxxxx>
>
> This commit enables i2c recovery, supported by the i2c core subsystem.
> It defines the required GPIOs for SDA and SLC lines.
>
> Signed-off-by: Jose Alarcon <jose.alarcon@xxxxxx>
> Signed-off-by: Nandor Han <nandor.han@xxxxxx>
> Signed-off-by: Romain Perier <romain.perier@xxxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/imx6q-bx50v3.dtsi | 42 +++++++++++++++++++++++++++++++++++++
> 1 file changed, 42 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6q-bx50v3.dtsi b/arch/arm/boot/dts/imx6q-bx50v3.dtsi
> index c90b26f..75201ca 100644
> --- a/arch/arm/boot/dts/imx6q-bx50v3.dtsi
> +++ b/arch/arm/boot/dts/imx6q-bx50v3.dtsi
> @@ -94,6 +94,29 @@
> };
> };
>
> +&iomuxc {
> + pinctrl_i2c1_gpio: i2c1gpiogrp {
> + fsl,pins = <
> + MX6QDL_PAD_CSI0_DAT8__GPIO5_IO26 0x1b0b0
> + MX6QDL_PAD_CSI0_DAT9__GPIO5_IO27 0x1b0b0
> + >;
> + };
> +
> + pinctrl_i2c2_gpio: i2c2gpiogrp {
> + fsl,pins = <
> + MX6QDL_PAD_KEY_COL3__GPIO4_IO12 0x1b0b0
> + MX6QDL_PAD_KEY_ROW3__GPIO4_IO13 0x1b0b0
> + >;
> + };
> +
> + pinctrl_i2c3_gpio: i2c3gpiogrp {
> + fsl,pins = <
> + MX6QDL_PAD_GPIO_3__GPIO1_IO03 0x1b0b0
> + MX6QDL_PAD_GPIO_6__GPIO1_IO06 0x1b0b0
> + >;
> + };
> +};
> +
We generally suggest to put iomuxc node at the bottom of the file, as it
usually contains a lot of pinctrl data which might hurt the readability
of the file. You iomuxc doesn't have that much data, so it could be
added in alphabetic order.
> &ecspi5 {
> cs-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
> pinctrl-names = "default";
> @@ -111,6 +134,11 @@
> };
>
> &i2c1 {
> + pinctrl-names = "default", "gpio";
> + pinctrl-1 = <&pinctrl_i2c1_gpio>;
> + sda-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH>;
> + scl-gpios = <&gpio5 27 GPIO_ACTIVE_HIGH>;
> +
> pca9547: mux@70 {
> compatible = "nxp,pca9547";
> reg = <0x70>;
> @@ -261,6 +289,20 @@
> };
> };
>
> +&i2c2 {
> + pinctrl-names = "default", "gpio";
> + pinctrl-1 = <&pinctrl_i2c2_gpio>;
> + sda-gpios = <&gpio4 13 GPIO_ACTIVE_HIGH>;
> + scl-gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>;
> +};
> +
> +&i2c3 {
> + pinctrl-names = "default", "gpio";
> + pinctrl-1 = <&pinctrl_i2c3_gpio>;
> + sda-gpios = <&gpio1 06 GPIO_ACTIVE_HIGH>;
s/06/6
> + scl-gpios = <&gpio1 03 GPIO_ACTIVE_HIGH>;
s/03/3
Shawn
> +};
> +
> &usdhc4 {
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_usdhc4>;
> --
> 1.8.3.1
>
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