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authorKevin Chiu <Kevin.Chiu@quantatw.com>2017-08-17 18:43:47 +0800
committerAaron Durbin <adurbin@chromium.org>2017-08-21 16:40:17 +0000
commit215beb028bf9ce3eb2301cc6208eb2a33547ea18 (patch)
tree01b46a5e0aa71ff5ab5c8488d9839befc6290e8e /src/mainboard/google/reef
parent57f8386a2bfa2ca794b687cfc7846dab690fd438 (diff)
google/snappy: Add MELFAS touch screen support
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>
Diffstat (limited to 'src/mainboard/google/reef')
-rw-r--r--src/mainboard/google/reef/variants/snappy/devicetree.cb7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/variants/snappy/devicetree.cb b/src/mainboard/google/reef/variants/snappy/devicetree.cb
index d888896626..4bb9b51d01 100644
--- a/src/mainboard/google/reef/variants/snappy/devicetree.cb
+++ b/src/mainboard/google/reef/variants/snappy/devicetree.cb
@@ -193,6 +193,13 @@ chip soc/intel/apollolake
register "has_power_resource" = "1"
device i2c 10 on 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
register "generic.hid" = ""WDHT0002""
register "generic.desc" = ""WDT Touchscreen""