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Input: bu21013_ts - convert to use GPIO descriptors

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This driver can use GPIO descriptors rather than GPIO numbers
without any problems, convert it. Name the field variables after
the actual pins on the chip rather than the "reset" and "touch"
names from the devicetree bindings that are vaguely inaccurate.

No in-tree users pass GPIO numbers in platform data so drop
this. Descriptor tables can be used to get these GPIOs from a board
file if need be.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Linus Walleij
2019-08-08 11:03:59 -07:00
committed by Dmitry Torokhov
parent 5dc15dcf39
commit a1b70a44b8
3 changed files with 41 additions and 54 deletions
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5
Documentation/devicetree/bindings/input/touchscreen/bu21013.txt
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@@ -2,10 +2,11 @@
Required properties:
- compatible : "rohm,bu21013_tp"
- reg : I2C device address
- reg : I2C device address
- reset-gpios : GPIO pin enabling (selecting) chip (CS)
Optional properties:
- touch-gpio : GPIO pin registering a touch event
- touch-gpios : GPIO pin registering a touch event
- <supply_name>-supply : Phandle to a regulator supply
- rohm,touch-max-x : Maximum outward permitted limit in the X axis
- rohm,touch-max-y : Maximum outward permitted limit in the Y axis