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

[Markus Pargmann]

Hi,

On Thu, May 28, 2015 at 03:54:37PM -0700, 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.
> 
> Additionally the pad used for WDOG_B needs to be configured which we add to
> a hog group for lack of a better location.

Why don't you add this as pinctrl of the watchdog device node? It won't
have any influence anyway until the watchdog driver was setup.

Regards,

Markus

> 
> Signed-off-by: Tim Harvey <tharvey at gateworks.com>
> ---
>  arch/arm/boot/dts/imx6qdl-gw51xx.dtsi | 13 +++++++++++++
>  arch/arm/boot/dts/imx6qdl-gw52xx.dtsi | 13 +++++++++++++
>  arch/arm/boot/dts/imx6qdl-gw53xx.dtsi | 13 +++++++++++++
>  arch/arm/boot/dts/imx6qdl-gw54xx.dtsi | 18 ++++++++++++++++++
>  arch/arm/boot/dts/imx6qdl-gw551x.dtsi | 12 ++++++++++++
>  arch/arm/boot/dts/imx6qdl-gw552x.dtsi | 13 +++++++++++++
>  6 files changed, 82 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
> index f2867c4..740c6c4 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
> @@ -210,8 +210,21 @@
>  	status = "okay";
>  };
>  
> +&wdog1 {
> +	ext-reset;
> +};
> +
>  &iomuxc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_hog>;
> +
>  	imx6qdl-gw51xx {
> +		pinctrl_hog: hoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
> +			>;
> +		};
> +
>  		pinctrl_enet: enetgrp {
>  			fsl,pins = <
>  				MX6QDL_PAD_RGMII_RXC__RGMII_RXC		0x1b0b0
> diff --git a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
> index b5756c2..1b06f18 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
> @@ -323,8 +323,21 @@
>  	status = "okay";
>  };
>  
> +&wdog1 {
> +	ext-reset;
> +};
> +
>  &iomuxc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_hog>;
> +
>  	imx6qdl-gw52xx {
> +		pinctrl_hog: hoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
> +			>;
> +		};
> +
>  		pinctrl_audmux: audmuxgrp {
>  			fsl,pins = <
>  				MX6QDL_PAD_SD2_DAT0__AUD4_RXD		0x130b0
> diff --git a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
> index 86f03c1..65e5c01 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
> @@ -329,8 +329,21 @@
>  	status = "okay";
>  };
>  
> +&wdog1 {
> +	ext-reset;
> +};
> +
>  &iomuxc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_hog>;
> +
>  	imx6qdl-gw53xx {
> +		pinctrl_hog: hoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
> +			>;
> +		};
> +
>  		pinctrl_audmux: audmuxgrp {
>  			fsl,pins = <
>  				MX6QDL_PAD_SD2_DAT0__AUD4_RXD		0x130b0
> diff --git a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
> index 4a8d97f..f108781 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
> @@ -422,8 +422,26 @@
>  	status = "okay";
>  };
>  
> +&wdog1 {
> +	status = "disabled";
> +};
> +
> +&wdog2 {
> +	status = "okay";
> +	ext-reset;
> +};
> +
>  &iomuxc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_hog>;
> +
>  	imx6qdl-gw54xx {
> +		pinctrl_hog: hoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_SD1_DAT3__WDOG2_B		0x1b0b0
> +			>;
> +		};
> +
>  		pinctrl_audmux: audmuxgrp {
>  			fsl,pins = <
>  				MX6QDL_PAD_SD2_DAT0__AUD4_RXD		0x130b0
> diff --git a/arch/arm/boot/dts/imx6qdl-gw551x.dtsi b/arch/arm/boot/dts/imx6qdl-gw551x.dtsi
> index d1866a0..ae3c2a4 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw551x.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw551x.dtsi
> @@ -227,8 +227,20 @@
>  	status = "okay";
>  };
>  
> +&wdog1 {
> +	ext-reset;
> +};
> +
>  &iomuxc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_hog>;
>  	imx6qdl-gw51xx {
> +		pinctrl_hog: hoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
> +			>;
> +		};
> +
>  		pinctrl_flexcan1: flexcan1grp {
>  			fsl,pins = <
>  				MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX	0x1b0b1
> diff --git a/arch/arm/boot/dts/imx6qdl-gw552x.dtsi b/arch/arm/boot/dts/imx6qdl-gw552x.dtsi
> index 5c6587f..52eaf42 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw552x.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw552x.dtsi
> @@ -185,8 +185,21 @@
>  	status = "okay";
>  };
>  
> +&wdog1 {
> +	ext-reset;
> +};
> +
>  &iomuxc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_hog>;
> +
>  	imx6qdl-gw552x {
> +		pinctrl_hog: hoggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__WDOG1_B		0x1b0b0
> +			>;
> +		};
> +
>  		pinctrl_gpio_leds: gpioledsgrp {
>  			fsl,pins = <
>  				MX6QDL_PAD_KEY_COL0__GPIO4_IO06		0x1b0b0
> -- 
> 1.9.1
> 
> 
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> 

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