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google/snappy: Add MELFAS touch screen support

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Current coreboot does not create ACPI device for OS to recognize MELFAS
touchscreen.

List the touch screen in the devicetree so that the correct ACPI device
are created.

BUG=b:64779224
BRANCH=reef
TEST=emerge-snappy coreboot
Change-Id: If2bc910d641e0cf2b120ed883c5788542959f568
Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/21067
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Kevin Chiu
2017-08-17 18:43:47 +08:00
committed by Aaron Durbin
parent 57f8386a2b
commit 215beb028b
1 changed files with 7 additions and 0 deletions
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7
src/mainboard/google/reef/variants/snappy/devicetree.cb
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@@ -193,6 +193,13 @@ chip soc/intel/apollolake
register "has_power_resource" = "1" register "has_power_resource" = "1"
device i2c 10 on end device i2c 10 on end
end end
chip drivers/i2c/generic
register "hid" = ""MLFS0000""
register "desc" = ""Melfas Touchscreen""
register "irq" = "ACPI_IRQ_EDGE_LOW(GPIO_21_IRQ)"
register "probed" = "1"
device i2c 34 on end
end
chip drivers/i2c/hid chip drivers/i2c/hid
register "generic.hid" = ""WDHT0002"" register "generic.hid" = ""WDHT0002""
register "generic.desc" = ""WDT Touchscreen"" register "generic.desc" = ""WDT Touchscreen""