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[PATCH v4 1/3] ARM: dts: vf500-colibri: Add device tree node for touchscreen support

Started bySanchayan Maity <maitysanchayan@gmail.com>
First post2015-08-21 15:40 +0200
Last post2015-08-23 17:40 +0200
Articles 3 — 3 participants

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  [PATCH v4 1/3] ARM: dts: vf500-colibri: Add device tree node for touchscreen support Sanchayan Maity <maitysanchayan@gmail.com> - 2015-08-21 15:40 +0200
    Re: [PATCH v4 1/3] ARM: dts: vf500-colibri: Add device tree node for  touchscreen support Stefan Agner <stefan@agner.ch> - 2015-08-23 04:00 +0200
      Re: [PATCH v4 1/3] ARM: dts: vf500-colibri: Add device tree node for  touchscreen support maitysanchayan@gmail.com - 2015-08-23 17:40 +0200

#1211175 — [PATCH v4 1/3] ARM: dts: vf500-colibri: Add device tree node for touchscreen support

FromSanchayan Maity <maitysanchayan@gmail.com>
Date2015-08-21 15:40 +0200
Subject[PATCH v4 1/3] ARM: dts: vf500-colibri: Add device tree node for touchscreen support
Message-ID<pZUI2-548-5@gated-at.bofh.it>
Add device tree node for touchscreen support on Colibri VF50. The
touchscreen functionality on VF50 uses the ADC channels of Vybrid
and some GPIOs. Also add pinctrl nodes for proper pinmux.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
---
 arch/arm/boot/dts/vf500-colibri-eval-v3.dts |  4 +++
 arch/arm/boot/dts/vf500-colibri.dtsi        | 47 +++++++++++++++++++++++++++++
 2 files changed, 51 insertions(+)

diff --git a/arch/arm/boot/dts/vf500-colibri-eval-v3.dts b/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
index 7fc782c..14c0b00 100644
--- a/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
+++ b/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
@@ -15,3 +15,7 @@
 	model = "Toradex Colibri VF50 on Colibri Evaluation Board";
 	compatible = "toradex,vf500-colibri_vf50-on-eval", "toradex,vf500-colibri_vf50", "fsl,vf500";
 };
+
+&touchscreen {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/vf500-colibri.dtsi b/arch/arm/boot/dts/vf500-colibri.dtsi
index cee34a3..84f091d 100644
--- a/arch/arm/boot/dts/vf500-colibri.dtsi
+++ b/arch/arm/boot/dts/vf500-colibri.dtsi
@@ -17,4 +17,51 @@
 	memory {
 		reg = <0x80000000 0x8000000>;
 	};
+
+	touchscreen: vf50-touchscreen {
+		compatible = "toradex,vf50-touchscreen";
+		io-channels = <&adc1 0>,<&adc0 0>,
+				<&adc0 1>,<&adc1 2>;
+		xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+		xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;
+		yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
+		ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "idle","default","gpios";
+		pinctrl-0 = <&pinctrl_touchctrl_idle>;
+		pinctrl-1 = <&pinctrl_touchctrl_default>;
+		pinctrl-2 = <&pinctrl_touchctrl_gpios>;
+		vf50-ts-min-pressure = <200>;
+		status = "disabled";
+	};
+};
+
+&iomuxc {
+	vf610-colibri {
+		pinctrl_touchctrl_idle: touchctrl_idle {
+			fsl,pins = <
+				VF610_PAD_PTA18__GPIO_8		0x006d
+				VF610_PAD_PTA19__GPIO_9		0x006c
+				>;
+		};
+
+		pinctrl_touchctrl_default: touchctrl_default {
+			fsl,pins = <
+				VF610_PAD_PTA18__ADC0_SE0	0x0040
+				VF610_PAD_PTA19__ADC0_SE1	0x0040
+				VF610_PAD_PTA16__ADC1_SE0	0x0040
+				VF610_PAD_PTB2__ADC1_SE2	0x0040
+				>;
+		};
+
+		pinctrl_touchctrl_gpios: touchctrl_gpios {
+			fsl,pins = <
+				VF610_PAD_PTA23__GPIO_13	0x22e9
+				VF610_PAD_PTB23__GPIO_93	0x22e9
+				VF610_PAD_PTA22__GPIO_12	0x22e9
+				VF610_PAD_PTA11__GPIO_4		0x22e9
+				>;
+		};
+	};
 };
-- 
2.5.0

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#1211553 — Re: [PATCH v4 1/3] ARM: dts: vf500-colibri: Add device tree node for touchscreen support

FromStefan Agner <stefan@agner.ch>
Date2015-08-23 04:00 +0200
SubjectRe: [PATCH v4 1/3] ARM: dts: vf500-colibri: Add device tree node for touchscreen support
Message-ID<q0sJI-3jr-9@gated-at.bofh.it>
In reply to#1211175
On 2015-08-21 06:26, Sanchayan Maity wrote:
> Add device tree node for touchscreen support on Colibri VF50. The
> touchscreen functionality on VF50 uses the ADC channels of Vybrid
> and some GPIOs. Also add pinctrl nodes for proper pinmux.
> 
> Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
> ---
>  arch/arm/boot/dts/vf500-colibri-eval-v3.dts |  4 +++
>  arch/arm/boot/dts/vf500-colibri.dtsi        | 47 +++++++++++++++++++++++++++++
>  2 files changed, 51 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
> b/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
> index 7fc782c..14c0b00 100644
> --- a/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
> +++ b/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
> @@ -15,3 +15,7 @@
>  	model = "Toradex Colibri VF50 on Colibri Evaluation Board";
>  	compatible = "toradex,vf500-colibri_vf50-on-eval",
> "toradex,vf500-colibri_vf50", "fsl,vf500";
>  };
> +
> +&touchscreen {
> +	status = "okay";
> +};
> diff --git a/arch/arm/boot/dts/vf500-colibri.dtsi
> b/arch/arm/boot/dts/vf500-colibri.dtsi
> index cee34a3..84f091d 100644
> --- a/arch/arm/boot/dts/vf500-colibri.dtsi
> +++ b/arch/arm/boot/dts/vf500-colibri.dtsi
> @@ -17,4 +17,51 @@
>  	memory {
>  		reg = <0x80000000 0x8000000>;
>  	};
> +
> +	touchscreen: vf50-touchscreen {
> +		compatible = "toradex,vf50-touchscreen";
> +		io-channels = <&adc1 0>,<&adc0 0>,
> +				<&adc0 1>,<&adc1 2>;
> +		xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
> +		xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;
> +		yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
> +		ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
> +		interrupt-parent = <&gpio0>;
> +		interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
> +		pinctrl-names = "idle","default","gpios";
> +		pinctrl-0 = <&pinctrl_touchctrl_idle>;
> +		pinctrl-1 = <&pinctrl_touchctrl_default>;
> +		pinctrl-2 = <&pinctrl_touchctrl_gpios>;
> +		vf50-ts-min-pressure = <200>;

Since this is a touch screen related property, we even would want to
have that in the board specific device-tree (vf500-colibri-eval-v3.dts).


--
Stefan
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#1211638 — Re: [PATCH v4 1/3] ARM: dts: vf500-colibri: Add device tree node for touchscreen support

Frommaitysanchayan@gmail.com
Date2015-08-23 17:40 +0200
SubjectRe: [PATCH v4 1/3] ARM: dts: vf500-colibri: Add device tree node for touchscreen support
Message-ID<q0Fxf-4Ta-13@gated-at.bofh.it>
In reply to#1211553
On 15-08-22 18:54:28, Stefan Agner wrote:
> On 2015-08-21 06:26, Sanchayan Maity wrote:
> > Add device tree node for touchscreen support on Colibri VF50. The
> > touchscreen functionality on VF50 uses the ADC channels of Vybrid
> > and some GPIOs. Also add pinctrl nodes for proper pinmux.
> > 
> > Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
> > ---
> >  arch/arm/boot/dts/vf500-colibri-eval-v3.dts |  4 +++
> >  arch/arm/boot/dts/vf500-colibri.dtsi        | 47 +++++++++++++++++++++++++++++
> >  2 files changed, 51 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
> > b/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
> > index 7fc782c..14c0b00 100644
> > --- a/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
> > +++ b/arch/arm/boot/dts/vf500-colibri-eval-v3.dts
> > @@ -15,3 +15,7 @@
> >  	model = "Toradex Colibri VF50 on Colibri Evaluation Board";
> >  	compatible = "toradex,vf500-colibri_vf50-on-eval",
> > "toradex,vf500-colibri_vf50", "fsl,vf500";
> >  };
> > +
> > +&touchscreen {
> > +	status = "okay";
> > +};
> > diff --git a/arch/arm/boot/dts/vf500-colibri.dtsi
> > b/arch/arm/boot/dts/vf500-colibri.dtsi
> > index cee34a3..84f091d 100644
> > --- a/arch/arm/boot/dts/vf500-colibri.dtsi
> > +++ b/arch/arm/boot/dts/vf500-colibri.dtsi
> > @@ -17,4 +17,51 @@
> >  	memory {
> >  		reg = <0x80000000 0x8000000>;
> >  	};
> > +
> > +	touchscreen: vf50-touchscreen {
> > +		compatible = "toradex,vf50-touchscreen";
> > +		io-channels = <&adc1 0>,<&adc0 0>,
> > +				<&adc0 1>,<&adc1 2>;
> > +		xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
> > +		xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;
> > +		yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
> > +		ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
> > +		interrupt-parent = <&gpio0>;
> > +		interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
> > +		pinctrl-names = "idle","default","gpios";
> > +		pinctrl-0 = <&pinctrl_touchctrl_idle>;
> > +		pinctrl-1 = <&pinctrl_touchctrl_default>;
> > +		pinctrl-2 = <&pinctrl_touchctrl_gpios>;
> > +		vf50-ts-min-pressure = <200>;
> 
> Since this is a touch screen related property, we even would want to
> have that in the board specific device-tree (vf500-colibri-eval-v3.dts).

So the same property specified again in vf500-colibri-eval-v3.dts? Ok will
include the same.

- Sanchayan.
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