Le 05/05/2016 18:04, Grant Grundler a écrit :

On Wed, May 4, 2016 at 6:51 AM, Rob Herring [off-list ref] wrote:
...

quoted

quoted

+Required properties:
+
+     compatible:     Must be "atmel,atmegaxx_captouch".

No wildcards in the compatible strings. Use the specific devices.

Also, use hyphen rather than underscore. However, if the device is only
a touch controller, then '_captouch' is not needed. The part number is
sufficient to identify the device.

The primary part used on the board is AtMega88PA. Details of that SoC
are public:
    http://www.atmel.com/devices/ATMEGA88PA.aspx

I don't see why the exact chip is relevant to the driver. The driver
is just talking to an I2C device that reports button events.  The
protocol across the I2C determines what this driver has to do and that
protocol is implemented by the on-board firmware (supplied by Atmel).
Any AVR CPU could implement this same protocol.

Can we call this "atmel,qtouch-buttons-v2" or something like that?

Is it different from the Atmel QT1070 or QT2160 which have drivers
already available in Linux:
drivers/input/keyboard/qt1070.c

Bye,

I personally don't have anything invested in any particular name. Feel
free to suggest a different one. I'm perfectly happy with any color
paint on the shed.

...

quoted

quoted

+Example:
+
+     atmegaxx_captouch@51 {

atmegaxx@51 (with actual part number)

Is "qtouch-buttons@51" ok?

quoted

quoted

+             compatible = "atmel,atmegaxx_captouch";
+             reg = <0x51>;
+             interrupt-parent = <&tlmm>;
+             interrupts = <67 IRQ_TYPE_EDGE_FALLING>;
+             linux,keycodes = <BTN_0>, <BTN_1>,
+                     <BTN_2>, <BTN_3>,
+                     <BTN_4>, <BTN_5>,
+                     <BTN_6>, <BTN_7>;
+             autorepeat;
+     };

cheers,
grant
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

-- 
Nicolas Ferre
--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html