Hi Rob,
Thank you for the review.
On Fri, Jun 23, 2017 at 03:37:06PM -0500, Rob Herring wrote:
> On Mon, Jun 19, 2017 at 06:40:32PM +0800, Wang Yafei wrote:
> > Signed-off-by: Wang Yafei <wangyafei@xxxxxxxxxx>
> > ---
> > .../bindings/input/touchscreen/goodix-gtx5.txt | 75 ++++++++++++++++++++++
> > 1 file changed, 75 insertions(+)
> > create mode 100755 Documentation/devicetree/bindings/input/touchscreen/goodix-gtx5.txt
> >
> > diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix-gtx5.txt b/Documentation/devicetree/bindings/input/touchscreen/goodix-gtx5.txt
> > new file mode 100755
> > index 0000000..116c3ec
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/input/touchscreen/goodix-gtx5.txt
> > @@ -0,0 +1,75 @@
> > +Device tree bindings for Goodix GTx5 series touchscreen controller
> > +
> > +Required properties:
> > +
> > +- compatible : should be "goodix,gtx5" or "goodix,gsx"
> > +
> > +- reg : I2C address of the chip. Should be 0x5d or 0x14
> > +- interrupt-parent : Inerrupt controller to which the chip is connected
> > +- interrupts : Interrrupt to which the chip is connected
> > +- touchscreen-size-x : horizontal resolution of touchscreen
> > + (in pixels)
> > +- touchscreen-size-y : vertical resolution of touchscreen
> > + (in pixels)
> > +- touchscreen-max-id : panel supported max touch number.
> > +- touchscreen-max-w : panel max width value.
>
> Just "See touchscreen.txt" for all of these common props.
Okay, I have noticed that.
> > +
> > +
> > +Optional properties:
> > +- reset-gpios : reset gpio.
> > +- irq-gpios : interrupt gpio.
>
> Use interrupts binding.
>
> > +- irq-flags : irq trigger type config, value should be:
> > + 1 - rising edge,
> > + 2 - falling edge,
> > + 4 - high level,
> > + 5 - low level.
>
> Part of the flags for interrupt cells.
Okay, I will remove this property and use the flowing property:
interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
> > +- touchscreen-swapped-x-y: swap x/y axis coordinates.
>
> "See touchscreen.txt"
>
> > +- touchscreen-key-map: keycode value map /*KEY_HOMEPAGE, KEY_BACK*/
>
> This hardly seems sufficient to map screen areas to keys. There's been
> some discussion about doing that in the past.
Sorry haven't notice that before, I will change it to the flowing
property format:
linux,keycodes = <KEY_HOMEPAGE>, <KEY_MENU>, <KEY_BACK>;
> > +- power-on-delay-us: delay after power on.
> > +- power-off-delay-us: delay after power off.
>
> These should be implied by the compatible. If not, you need more
> specific compatible strings.
Okay, I will remove this props from DT.
> > +- normal-cfg: touch device normal config data.
>
> There's no mention these are a sub-node sensorX.
>
> Needs a vendor prefix too.
>
> > +- vtouch-supply : power supply for the touch device.
> > +Example:
> > +i2c@00000000 {
> > + /* ... */
> > +
> > + goodix-ts-i2c@14 {
>
> touchscreen@14
>
> > + compatible = "goodix,gtx5";
> > + reg = <0x14>;
> > + interrupt-parent = <&msm_gpio>;
> > + interrupts = <13 0x2800>;
> > + vtouch-supply = <&pm8916_l15>;
> > + reset-gpios = <&msm_gpio 12 0x0>;
> > + irq-gpios = <&msm_gpio 13 0x2800>;
> > + irq-flags = <1>; /* 1:trigger rising, 2:trigger falling;*/
> > + touchscreen-max-id = <10>;
> > + touchscreen-size-x = <400>;
> > + touchscreen-size-y = <400>;
> > + touchscreen-max-w = <400>;
> > + touchscreen-max-pressure = <255>;
> > + touchscreen-swapped-x-y;
> > + touchscreen-key-map = <172 158>; /*KEY_HOMEPAGE, KEY_BACK*/
> > + sensor0 {
>
> How many sensors can there be? That needs to be documented.
>
> Why do you need a sub-node?
sensor is an internal call, we use senesorX to represent the touchpanel
is produced by which factory. A panel factory will have it corresponding
config data to get the best touch results. It will delete the sub-node
and change to the following format:
panel0,normal-cfg = [...] /* panelX,cfg : X is no more than 10*/
> > + normal-cfg = [
> > + 02 00 00 09 09 01 07 02 00 00 00 00 01 00 3C 00 07 07
> > + 00 00 00 00 00 00 40 01 40 01 C8 00 96 00 F4 01 F4 01
> > + F4 01 20 01 11 0A 0A 03 14 14 14 14 0A 0C 01 01 11 11
> > + 11 00 14 14 14 14 14 14 14 14 14 00 00 0F 00 00 00 00
> > + 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > + 00 00 00 00 00 00 00 00 00 00 11 09 10 00 31 32 33 34
> > + 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 CA 64 00
> > + 00 00 00 00 00 00 09 00 13 00 00 00 00 00 00 00 00 00
> > + 50 B0 19 00 19 00 05 00 00 00 00 0A 05 00 00 00 00 00
> > + 01 00 FF 00 0B 06 0D 02 FF 04 05 03 07 01 08 0A 0E 11
> > + 0F 10 09 13 0C 16 17 14 18 12 19 15 1D 1E 1C 1F 1B 20
> > + 1A 2A 29 28 25 2B 27 21 FF 24 22 2C 26 23 FF 00 00 00
> > + 00 00 00 00 00 00 00 00 00 00 00 00 80 80 80 80 80 80
> > + 80 80 80 80 80 80 80 80 80 80 9F 22 01 AE];
> > + };
> > + sensor1 {
> > + normal-cfg = [ ];
> > + };
> > + };
> > +}
> > +
> > +
> > --
> > 2.7.4
> >
Sincerely.
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