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UPSTREAM: google/pyro: Add ELAN touch screen support

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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.

Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 5aadea9d76
Original-BUG=chrome-os-partner:61803
Original-BRANCH=reef
Original-TEST=emerge-pyro coreboot
Original-Change-Id: I9015fa63ef3aba74b682da3608a05ee49c4947c5
Original-Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Original-Reviewed-on: https://review.coreboot.org/18086
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: I63d4092acbb26602df9c501b8d87bfb3169ee79d
Reviewed-on: https://chromium-review.googlesource.com/428259
Commit-Ready: Aaron Durbin <adurbin@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
This commit is contained in:
Kevin Chiu 2017-01-10 22:31:05 +08:00 • committed by chrome-bot
commit 818f5acaa7
1 changed files with 15 additions and 0 deletions
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15
src/mainboard/google/reef/variants/pyro/devicetree.cb
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@ -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