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Subject[RFC PATCH 0/2] Add SW_MACHINE_COVER key
Date
This series adds the SW_MACHINE_COVER key, and changes the Nokia N900 dts to
expose the key via gpio-keys.

Before, this gpio was used as card detect GPIO, causing the card not to show up
if the phone was booted without cover, see this thread on linux-omap:

N900: Remove mmc1 "safety feature"? (was: Re: mmc0 on Nokia N900 on Linux 5.4.18)

Since there is no realistic use for using this gpio as card detect, instead
expose it to userspace via gpio-keys. There are no event type for machine covers
yet, so add that first.

The key should be 1 when the cover is closed, and 0 when the cover is open.

Starting the Nokia N900 with the cover removed, putting the cover in place:

Event: time 1581684523.415296, type 5 (EV_SW), code 16 (?), value 1

Removing the cover again, exposing mmc1 and the battery:

Event: time 1581684529.413706, type 5 (EV_SW), code 16 (?), value 0

Merlijn Wajer (2):
Input: add `SW_MACHINE_COVER`
ARM: dts: n900: remove mmc1 card detect gpio

arch/arm/boot/dts/omap3-n900.dts | 12 ++++++++----
include/linux/mod_devicetable.h | 2 +-
include/uapi/linux/input-event-codes.h | 3 ++-
3 files changed, 11 insertions(+), 6 deletions(-)

--
2.23.0

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