From 24bfeb154e701ae71831f9e31b5fe19a675b5865 Mon Sep 17 00:00:00 2001 From: David Wu Date: Thu, 9 Oct 2025 08:58:16 +0800 Subject: [PATCH] mb/google/fatcat/var/moonstone: Add focaltech touchscreen support 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/89465 Reviewed-by: Ren Kuo Tested-by: build bot (Jenkins) --- .../fatcat/variants/moonstone/overridetree.cb | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/src/mainboard/google/fatcat/variants/moonstone/overridetree.cb b/src/mainboard/google/fatcat/variants/moonstone/overridetree.cb index c1ed2a9400..9c7320018e 100644 --- a/src/mainboard/google/fatcat/variants/moonstone/overridetree.cb +++ b/src/mainboard/google/fatcat/variants/moonstone/overridetree.cb @@ -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