On Fri, Mar 24, 2017 at 10:46 AM, Shawn Guo <shawnguo@xxxxxxxxxx> wrote:
> On Wed, Mar 22, 2017 at 11:18:10PM +0530, Jagan Teki wrote:
>> From: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
>>
>> Add touchscreen node as i2c1 slave device on Engicam Is.IoT MX6UL
>> modules, the touchscreen controlled 'st,stmpe-ts' connected via
>> i2c with st,stmpe811 mfb interface.
>
> s/mfb/mfd?
>
>>
>> Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
>> Cc: Matteo Lisi <matteo.lisi@xxxxxxxxxxx>
>> Cc: Michael Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx>
>> Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
>> ---
>> arch/arm/boot/dts/imx6ul-isiot-common.dtsi | 34 ++++++++++++++++++++++++++++++
>> 1 file changed, 34 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/imx6ul-isiot-common.dtsi b/arch/arm/boot/dts/imx6ul-isiot-common.dtsi
>> index 9660e20..b149b5e 100644
>> --- a/arch/arm/boot/dts/imx6ul-isiot-common.dtsi
>> +++ b/arch/arm/boot/dts/imx6ul-isiot-common.dtsi
>> @@ -40,6 +40,34 @@
>> * OTHER DEALINGS IN THE SOFTWARE.
>> */
>>
>> +&i2c1 {
>> + touch: stmpe811@44 {
>
> Label a MFD device 'touch'? Also, the node name should be generic. Not
> sure what should be used for MFD device though.
May be I can use stmpe811@41 the existing imx6qdl-apalis.dtsi using
the similar notation.
>
>> + compatible = "st,stmpe811";
>> + reg = <0x44>;
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_stmpe_ts>;
>
> If this is for stmpe-ts, shouldn't be put into touchscreen child node?
Actually this is interrupt pad, for the touch controller via stmpe so
I can rename pinctrl_touch_int.
>
>> + interrupt-parent = <&gpio1>;
>> + interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
>> + interrupt-controller;
>> + #interrupt-cells = <2>;
>> +
>> + stmpe_touchscreen {
>
> 'stmpe: touchscreen {' might be better.
stmpe_touchscreen {
This is also compatible with existing dtsi files
thanks!
--
Jagan Teki
Senior Linux Kernel Engineer | Amarula Solutions
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.
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