diff mbox

[1/4] ARM: dts: imx6dql-nitrogen6x: add touchscreen support

Message ID 1441645069-27263-2-git-send-email-gary.bisson@boundarydevices.com (mailing list archive)
State New, archived
Headers show

Commit Message

Gary Bisson Sept. 7, 2015, 4:57 p.m. UTC
This patch adds the different touchscreens that can be connected using
the displays available for this board.
http://boundarydevices.com/product-category/displays/

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
---
 arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

Comments

Philipp Zabel Sept. 8, 2015, 6:58 a.m. UTC | #1
Hi Gary,

Am Montag, den 07.09.2015, 18:57 +0200 schrieb Gary Bisson:
> This patch adds the different touchscreens that can be connected using
> the displays available for this board.
> http://boundarydevices.com/product-category/displays/
> 
> Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
> ---
>  arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> index ad16dce..ec9da5e 100644
> --- a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> @@ -284,6 +284,22 @@
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_i2c3>;
>  	status = "okay";
> +
> +	egalax_ts@04 {
> +		compatible = "eeti,egalax_ts";
> +		reg = <0x04>;
> +		interrupt-parent = <&gpio1>;
> +		interrupts = <9 2>;

Please use IRQ_TYPE_EDGE_FALLING here.

> +		wakeup-gpios = <&gpio1 9 0>;

And that would be GPIO_ACTIVE_HIGH. Should this be changed to
GPIO_ACTIVE_LOW instead? From other device tree files and from what the
driver does, it looks as if a wakeup is issued by forcing a falling edge
on the IRQ pin.

> +	};
> +
> +	ft5x06_ts@38 {
> +		compatible = "edt,edt-ft5x06";
> +		reg = <0x38>;
> +		interrupt-parent = <&gpio1>;
> +		interrupts = <9 2>;

IRQ_TYPE_EDGE_FALLING

> +		wakeup-gpios = <&gpio1 9 0>;

GPIO_ACTIVE_HIGH

> +	};
>  };

best regards
Philipp
Gary Bisson Sept. 8, 2015, 1:12 p.m. UTC | #2
Hi Philipp,

On Tue, Sep 8, 2015 at 8:58 AM, Philipp Zabel <p.zabel@pengutronix.de> wrote:
> Hi Gary,
>
> Am Montag, den 07.09.2015, 18:57 +0200 schrieb Gary Bisson:
>> This patch adds the different touchscreens that can be connected using
>> the displays available for this board.
>> http://boundarydevices.com/product-category/displays/
>>
>> Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
>> ---
>>  arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi | 16 ++++++++++++++++
>>  1 file changed, 16 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
>> index ad16dce..ec9da5e 100644
>> --- a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
>> +++ b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
>> @@ -284,6 +284,22 @@
>>       pinctrl-names = "default";
>>       pinctrl-0 = <&pinctrl_i2c3>;
>>       status = "okay";
>> +
>> +     egalax_ts@04 {
>> +             compatible = "eeti,egalax_ts";
>> +             reg = <0x04>;
>> +             interrupt-parent = <&gpio1>;
>> +             interrupts = <9 2>;
>
> Please use IRQ_TYPE_EDGE_FALLING here.
>
>> +             wakeup-gpios = <&gpio1 9 0>;
>
> And that would be GPIO_ACTIVE_HIGH. Should this be changed to
> GPIO_ACTIVE_LOW instead? From other device tree files and from what the
> driver does, it looks as if a wakeup is issued by forcing a falling edge
> on the IRQ pin.

You're right it should be GPIO_ACTIVE_LOW instead for both nodes. I'll
update it for v2 and track down the hardcoded values for the 2 boards
this series adds.

Thanks for the feedback.

Regards,
Gary
diff mbox

Patch

diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
index ad16dce..ec9da5e 100644
--- a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
@@ -284,6 +284,22 @@ 
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_i2c3>;
 	status = "okay";
+
+	egalax_ts@04 {
+		compatible = "eeti,egalax_ts";
+		reg = <0x04>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <9 2>;
+		wakeup-gpios = <&gpio1 9 0>;
+	};
+
+	ft5x06_ts@38 {
+		compatible = "edt,edt-ft5x06";
+		reg = <0x38>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <9 2>;
+		wakeup-gpios = <&gpio1 9 0>;
+	};
 };
 
 &iomuxc {