From 2ae0f6cdb94b5fa391f90f038e867e02f76963fd Mon Sep 17 00:00:00 2001 From: "wu.garen" Date: Mon, 28 Jul 2025 14:38:02 +0800 Subject: [PATCH] mb/google/trulo/var/kaladin: Add fw config for ELAN touchscreen Kaladin support 2 kinds of ELAN touchscreen with different slave address: TOP(Touch_IC on Panel): slave address 0x10 DBTS(Touch IC on Daughter BOARD):slave address 0x15 Add FW config to separate ELAN touch screen. BUG=b:434591789 TEST=build and verified touchscreen work Change-Id: I3e1c748baf1d392c626ce17f4fcb601ec02ce428 Signed-off-by: wu.garen Reviewed-on: https://review.coreboot.org/c/coreboot/+/88585 Reviewed-by: Kapil Porwal Tested-by: build bot (Jenkins) --- .../google/brya/variants/kaladin/overridetree.cb | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/src/mainboard/google/brya/variants/kaladin/overridetree.cb b/src/mainboard/google/brya/variants/kaladin/overridetree.cb index 6d36246028..d6396afe55 100644 --- a/src/mainboard/google/brya/variants/kaladin/overridetree.cb +++ b/src/mainboard/google/brya/variants/kaladin/overridetree.cb @@ -7,6 +7,10 @@ fw_config option MB_USB_1C_1A 0 option MB_USB_2C_1A 1 end + field TOUCH_PANEL 4 5 + option TOUCH_ELAN_TOP 0 + option TOUCH_ELAN_DBTS 1 + end field STORAGE 30 31 option STORAGE_EMMC 0 option STORAGE_NVME 1 @@ -464,7 +468,7 @@ chip soc/intel/alderlake end #I2C0 device ref i2c1 on chip drivers/i2c/hid - register "generic.hid" = ""ELAN901C"" + register "generic.hid" = ""ELAN2513"" register "generic.desc" = ""ELAN Touchscreen"" register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E11_IRQ)" register "generic.detect" = "1" @@ -478,7 +482,9 @@ chip soc/intel/alderlake register "generic.enable_delay_ms" = "1" register "generic.has_power_resource" = "1" register "hid_desc_reg_offset" = "0x01" - device i2c 10 on end + device i2c 10 on + probe TOUCH_PANEL TOUCH_ELAN_TOP + end end chip drivers/i2c/hid register "generic.hid" = ""ELAN2513"" @@ -495,7 +501,9 @@ chip soc/intel/alderlake register "generic.has_power_resource" = "1" register "generic.use_gpio_for_status" = "true" register "hid_desc_reg_offset" = "0x01" - device i2c 15 on end + device i2c 15 on + probe TOUCH_PANEL TOUCH_ELAN_DBTS + end end end #I2C1 device ref i2c5 on