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authorKevin Chiu <Kevin.Chiu@quantatw.com>2017-01-10 22:31:05 +0800
committerAaron Durbin <adurbin@chromium.org>2017-01-13 17:37:51 +0100
commit5aadea9d76692776f843f9671a8b34f46d75609d (patch)
treee771a0b4f87e7bc00ef4f6008ab9e1869e0c19be /src/mainboard/google/reef/variants
parent7a9ec36fd4749880f7cecb4088c78b93d94746cc (diff)
downloadcoreboot-5aadea9d76692776f843f9671a8b34f46d75609d.tar.xz
google/pyro: Add ELAN touch screen support
Current fw does not create ACPI device for OS to recognize ELAN touchscreen. List the touch screen in the devicetree so that the correct ACPI device are created. BUG=chrome-os-partner:61803 BRANCH=reef TEST=emerge-pyro coreboot Change-Id: I9015fa63ef3aba74b682da3608a05ee49c4947c5 Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com> Reviewed-on: https://review.coreboot.org/18086 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/mainboard/google/reef/variants')
-rw-r--r--src/mainboard/google/reef/variants/pyro/devicetree.cb15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/variants/pyro/devicetree.cb b/src/mainboard/google/reef/variants/pyro/devicetree.cb
index bc06bbba11..f7551d66bb 100644
--- a/src/mainboard/google/reef/variants/pyro/devicetree.cb
+++ b/src/mainboard/google/reef/variants/pyro/devicetree.cb
@@ -176,6 +176,21 @@ chip soc/intel/apollolake
register "hid_desc_reg_offset" = "0x1"
device i2c 0xA on end
end
+ chip drivers/i2c/generic
+ register "hid" = ""ELAN0001""
+ register "desc" = ""ELAN Touchscreen""
+ register "irq" = "IRQ_EDGE_LOW(GPIO_21_IRQ)"
+ register "probed" = "1"
+
+ chip drivers/generic/gpio_regulator
+ register "name" = ""vcc33""
+ register "gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_152)"
+ register "enabled_on_boot" = "1"
+ device generic 0 on end
+ end
+
+ device i2c 10 on end
+ end
end # - I2C 3
device pci 17.0 on
chip drivers/i2c/generic