On 27/08/14 15:22, Javier Martinez Canillas wrote:
>>> If there was a BTN_NONE or KEY_UNUSED it would had been better but I think
>>> that making a distinction between these two cases (reserved pin vs GPIO
>>> available but not used) is useful.
>>
>> Maybe Nick can comment here.
Yes, this is probably useful to document. However, I fear that it's not
going to be obvious what the distinction is to someone who doesn't have the
Atmel docs. Perhaps it would be clearer to just do something like:
linux,gpio-keymap = <KEY_RESERVED
KEY_RESERVED
KEY_RESERVED /* GPIO0 */
KEY_RESERVED /* GPIO1 */
KEY_RESERVED /* GPIO2 */
BTN_LEFT>; /* GPIO3 */
If you omit any trailing KEY_RESERVED values it doesn't affect anything.
I was also going to suggest that you put something like "/* Atmel mXT224SL
*/" in your .dts file so it's clear what version of the maXTouch device you
are configuring.
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