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Input: ili210x - add ILI2117 support

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Add support for ILI2117 touch controller. This controller is similar
to the ILI210x and ILI251x, except for the following differences:
- Reading out of touch data must happen at most 300 mS after the
  interrupt line was asserted. No command must be sent, the data
  are returned upon pure I2C read of 43 bytes long.
- Supports 10 simultaneous touch inputs.
- Touch data format is slightly different.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Rob Herring <robh@kernel.org> # for DT binding
Tested-by: Adam Ford <aford173@gmail.com> #imx6q-logicpd
Tested-by: Sven Van Asbroeck <TheSven73@gmail.com> # ILI2118A variant
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Marek Vasut 2019-08-11 09:16:37 -07:00 • committed by Dmitry Torokhov
parent 4d856f72c1
commit eb91ecc9fc
2 changed files with 47 additions and 2 deletions
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3
Documentation/devicetree/bindings/input/ilitek,ili2xxx.txt
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@ -1,8 +1,9 @@
Ilitek ILI210x/ILI251x touchscreen controller
Ilitek ILI210x/ILI2117/ILI251x touchscreen controller
Required properties:
- compatible:
ilitek,ili210x for ILI210x
ilitek,ili2117 for ILI2117
ilitek,ili251x for ILI251x
- reg: The I2C address of the device