[PATCH v5 2/2] ARM: dts: imx: ventana: Add wdt ext-reset support

[Guenter Roeck]

On 04/01/2016 08:16 AM, Tim Harvey wrote:
> The Gateworks Ventana boards have a PMIC that can be used to regulate the
> CPU voltage rails for DVFS support. In order to ensure this PMIC is properly
> reset the watchdog needs to be configured to assert its external reset
> signal.
>
> Cc: Fabio Estevam <festevam at gmail.com>
> Cc: Lucas Stach <l.stach at pengutronix.de>
> Cc: Stefan Roese <sr at denx.de>
> Cc: Iain Paton <ipaton0 at gmail.com>
> Cc: Sascha Hauer <s.hauer at pengutronix.de>
> Cc: Akshay Bhat <akshay.bhat at timesys.com>
> Cc: Guenter Roeck <linux at roeck-us.net>
> Signed-off-by: Tim Harvey <tharvey at gateworks.com>

Acked-by: Guenter Roeck <linux at roeck-us.net>

> ----
> v5:
>   - changed property to 'fsl,ext-reset-output'
> v4:
>   - put property in wdoggrp
>
> Signed-off-by: Tim Harvey <tharvey at gateworks.com>
> ---
>   arch/arm/boot/dts/imx6qdl-gw51xx.dtsi | 12 ++++++++++++
>   arch/arm/boot/dts/imx6qdl-gw52xx.dtsi | 12 ++++++++++++
>   arch/arm/boot/dts/imx6qdl-gw53xx.dtsi | 12 ++++++++++++
>   arch/arm/boot/dts/imx6qdl-gw54xx.dtsi | 17 +++++++++++++++++
>   arch/arm/boot/dts/imx6qdl-gw551x.dtsi | 12 ++++++++++++
>   arch/arm/boot/dts/imx6qdl-gw552x.dtsi | 12 ++++++++++++
>   6 files changed, 77 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
> index 9d7ab6c..1340e27 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
> @@ -228,6 +228,12 @@
>   	status = "okay";
>   };
>
> +&wdog1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_wdog>;
> +	fsl,ext-reset-output;
> +};
> +
>   &iomuxc {
>   	imx6qdl-gw51xx {
>   		pinctrl_enet: enetgrp {
> @@ -364,5 +370,11 @@
>   				MX6QDL_PAD_EIM_D22__GPIO3_IO22		0x1b0b0 /* OTG_PWR_EN */
>   			>;
>   		};
> +
> +		pinctrl_wdog: wdoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
> +			>;
> +		};
>   	};
>   };
> diff --git a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
> index 8dd74e9..8cccc4a 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
> @@ -353,6 +353,12 @@
>   	status = "okay";
>   };
>
> +&wdog1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_wdog>;
> +	fsl,ext-reset-output;
> +};
> +
>   &iomuxc {
>   	imx6qdl-gw52xx {
>   		pinctrl_audmux: audmuxgrp {
> @@ -549,5 +555,11 @@
>   				MX6QDL_PAD_NANDF_CS1__SD3_VSELECT	0x170f9
>   			>;
>   		};
> +
> +		pinctrl_wdog: wdoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
> +			>;
> +		};
>   	};
>   };
> diff --git a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
> index ec3fe74..5f700cc 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
> @@ -351,6 +351,12 @@
>   	status = "okay";
>   };
>
> +&wdog1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_wdog>;
> +	fsl,ext-reset-output;
> +};
> +
>   &iomuxc {
>   	imx6qdl-gw53xx {
>   		pinctrl_audmux: audmuxgrp {
> @@ -539,5 +545,11 @@
>   				MX6QDL_PAD_NANDF_CS1__SD3_VSELECT	0x170f9
>   			>;
>   		};
> +
> +		pinctrl_wdog: wdoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
> +			>;
> +		};
>   	};
>   };
> diff --git a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
> index 367cc49..d19b4cc 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
> @@ -453,6 +453,17 @@
>   	status = "okay";
>   };
>
> +&wdog1 {
> +	status = "disabled";
> +};
> +
> +&wdog2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_wdog>;
> +	fsl,ext-reset-output;
> +	status = "okay";
> +};
> +
>   &iomuxc {
>   	imx6qdl-gw54xx {
>   		pinctrl_audmux: audmuxgrp {
> @@ -654,5 +665,11 @@
>   				MX6QDL_PAD_NANDF_CS1__SD3_VSELECT	0x170f9
>   			>;
>   		};
> +
> +		pinctrl_wdog: wdoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_SD1_DAT3__WDOG2_B		0x1b0b0
> +			>;
> +		};
>   	};
>   };
> diff --git a/arch/arm/boot/dts/imx6qdl-gw551x.dtsi b/arch/arm/boot/dts/imx6qdl-gw551x.dtsi
> index 118bea5..4b9fef8 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw551x.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw551x.dtsi
> @@ -239,6 +239,12 @@
>   	status = "okay";
>   };
>
> +&wdog1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_wdog>;
> +	fsl,ext-reset-output;
> +};
> +
>   &iomuxc {
>   	imx6qdl-gw51xx {
>   		pinctrl_flexcan1: flexcan1grp {
> @@ -333,5 +339,11 @@
>   				MX6QDL_PAD_GPIO_1__USB_OTG_ID		0x17059
>   			>;
>   		};
> +
> +		pinctrl_wdog: wdoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
> +			>;
> +		};
>   	};
>   };
> diff --git a/arch/arm/boot/dts/imx6qdl-gw552x.dtsi b/arch/arm/boot/dts/imx6qdl-gw552x.dtsi
> index f27f184..805e236 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw552x.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw552x.dtsi
> @@ -197,6 +197,12 @@
>   	status = "okay";
>   };
>
> +&wdog1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_wdog>;
> +	fsl,ext-reset-output;
> +};
> +
>   &iomuxc {
>   	imx6qdl-gw552x {
>   		pinctrl_gpio_leds: gpioledsgrp {
> @@ -286,5 +292,11 @@
>   				MX6QDL_PAD_KEY_ROW1__UART5_RX_DATA	0x1b0b1
>   			>;
>                   };
> +
> +		pinctrl_wdog: wdoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
> +			>;
> +		};
>   	};
>   };
>