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Input: goodix - support gt1151 touchpanel

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Support was added based on Goodix GitHub repo [1]. There are two major
differences between gt1151 and currently supported devices (gt9x):
 * CONFIG_DATA register has 0x8050 address instead of 0x8047,
 * config data checksum has 16-bit width instead of 8-bit.

Also update goodix_i2c_test() function, so it reads ID register (which
has the same address for all devices) instead of CONFIG_DATA (because
its address is known only after reading ID of the device).

[1] https://github.com/goodix/gt1x_driver_generic

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Change-Id: I12f2f9e745c2f14ff45b3f967fbf91e629230989
This commit is contained in:
Marcin Niestroj
2017-10-24 11:06:41 -07:00
committed by Chris
parent 9a8c3734c3
commit 9875ffd457
2 changed files with 100 additions and 28 deletions
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3
Documentation/devicetree/bindings/input/touchscreen/goodix.txt
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@@ -2,7 +2,8 @@ Device tree bindings for Goodix GT9xx series touchscreen controller
Required properties:
- compatible : Should be "goodix,gt911"
- compatible : Should be "goodix,gt1151"
or "goodix,gt911"
or "goodix,gt9110"
or "goodix,gt912"
or "goodix,gt927"