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mb/google/drallion: enable Elan and Melfas touch panel 

Drallion uses the same touch panel as Sarien. Copy the deivce
from Sarien.

BUG=b:140415892,b:138082886
BRANCH=N/A
TEST=N/A

Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: I8e6d2dcf4bd2ed2325137a05811af03692d40342
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35305
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Eric Lai 2019-09-10 11:32:03 +08:00 committed by Patrick Georgi
parent 5403a8e861
commit 3f19e1d97f
1 changed files with 31 additions and 0 deletions
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31
src/mainboard/google/drallion/variants/drallion/devicetree.cb
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@ -332,6 +332,37 @@ chip soc/intel/cannonlake
register "hid_desc_reg_offset" = "0x1"
device i2c 0A on end
end
chip drivers/i2c/hid
register "generic.hid" = ""ELAN900C""
register "generic.desc" = ""ELAN Touchscreen""
register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_C23_IRQ)"
register "generic.probed" = "1"
register "generic.reset_gpio" =
"ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E7)"
register "generic.reset_delay_ms" = "10"
register "generic.enable_gpio" =
"ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_B21)"
register "generic.enable_delay_ms" = "55"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x01"
register "generic.device_present_gpio" = "GPP_B4"
register "generic.device_present_gpio_invert" = "1"
device i2c 10 on end
end
chip drivers/i2c/generic
register "hid" = ""MLFS0000""
register "desc" = ""Melfas Touchscreen""
register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_C23_IRQ)"
register "probed" = "1"
register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E7)"
register "reset_delay_ms" = "10"
register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_B21)"
register "enable_delay_ms" = "55"
register "has_power_resource" = "1"
register "device_present_gpio" = "GPP_B4"
register "device_present_gpio_invert" = "1"
device i2c 34 on end
end
end # I2C #0
device pci 15.1 on
chip drivers/i2c/generic