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mb/google/fatcat/var/moonstone: Add focaltech touchscreen support

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This change adds the necessary configuration for the focaltech
touchscreen (FTSC1000) device, connected to I2C bus 38.

It includes settings for:
* HID descriptor
* Device description
* IRQ configuration
* Detection
* Reset and enable GPIOs with their respective delays
* Power resource handling
* HID descriptor register offset

BUG=b:442964901
TEST=emerge-fatcat coreboot and focaltech touchscreen can work well.

Change-Id: I7fb2f8b3c4ceb9d4bc7471d7eef23b0a18dca78a
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89465
Reviewed-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
David Wu 2025-10-09 08:58:16 +08:00 • committed by Matt DeVillier
commit 24bfeb154e
1 changed files with 14 additions and 0 deletions
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14
src/mainboard/google/fatcat/variants/moonstone/overridetree.cb
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@ -351,6 +351,20 @@ chip soc/intel/pantherlake
register "hid_desc_reg_offset" = "0x01"
device i2c 0x10 on end
end
chip drivers/i2c/hid
register "generic.hid" = ""FTSC1000""
register "generic.desc" = ""Focal Touchscreen""
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_F18_IRQ)"
register "generic.detect" = "1"
register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_F16)"
register "generic.reset_delay_ms" = "20"
register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_F08)"
register "generic.enable_delay_ms" = "6"
register "generic.has_power_resource" = "1"
register "generic.use_gpio_for_status" = "true"
register "hid_desc_reg_offset" = "0x01"
device i2c 0x38 on end
end
end # I2C5
device ref gspi0 on
probe FPMCU FP_SPI