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mb/google/trulo/var/kaladin: Add LGD touchscreen

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Add LGD touchscreen for kaladin

BUG=b:484114852
TEST=build and flash on kaladin,verify touch function works normally

Change-Id: I1f204569767e7eab17bc44dcd060d606ba87a38e
Signed-off-by: Eren Peng <peng.eren@inventec.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91647
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
This commit is contained in:
Eren Peng 2026-03-11 13:52:42 +08:00 • committed by Matt DeVillier
commit 1d17c9522f
1 changed files with 20 additions and 1 deletions
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21
src/mainboard/google/brya/variants/kaladin/overridetree.cb
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@ -11,11 +11,12 @@ fw_config
option MB_USB_1C_1A 0
option MB_USB_2C_1A 1
end
field TOUCH_PANEL 4 5
field TOUCH_PANEL 4 8
option TOUCH_ELAN_TOP 0
option TOUCH_ELAN_DBTS 1
option TOUCH_GTH1563_TOP 2
option TOUCH_GTH7503_TOP 3
option TOUCH_LXST2024_TOP 4
end
field WIFI_SAR 13 15
option WIFI_SAR_ID_0 0
@ -600,6 +601,24 @@ chip soc/intel/alderlake
probe TOUCH_PANEL TOUCH_ELAN_DBTS
end
end
chip drivers/i2c/hid
register "generic.hid" = ""LXST2024""
register "generic.desc" = ""LGD Touchscreen""
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E11_IRQ)"
register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
register "generic.reset_delay_ms" = "20"
register "generic.reset_off_delay_ms" = "2"
register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C4)"
register "generic.stop_delay_ms" = "280"
register "generic.stop_off_delay_ms" = "2"
register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)"
register "generic.enable_delay_ms" = "1"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x01"
device i2c 10 on
probe TOUCH_PANEL TOUCH_LXST2024_TOP
end
end
end #I2C1
device ref i2c5 on
chip drivers/i2c/generic