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mb/google/fatcat/var/ruby: Enable panel touch function

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Modify gpio and device tree setting to to make the touchscreen
function work.

schematics: RUBY_EVT_0902_2112.pdf

Device i2c log:
[INFO ]  \_SB.PCI0.CNVW: WIFI Device GENERIC: 0.0
[INFO ]  \_SB.PCI0.I2C0.RT58: Headset Codec at I2C: 00:1a
[INFO ]  \_SB.PCI0.I2C0.D04B: TI SPK AMP L at I2C: 00:4b
[INFO ]  \_SB.PCI0.I2C0.D04C: TI SPK AMP R at I2C: 00:4c
[INFO ]  \_SB.PCI0.I2C0.D04D: 	TI SPK AMP TL at I2C: 00:4d
[INFO ]  \_SB.PCI0.I2C0.D04F: T1 SPK AMP TR at I2C: 00:4f
[INFO ]  \_SB.PCI0.I2C3.TPMI: I2C TPM at I2C: 00:50
[INFO ]  \_SB.PCI0.I2C4.H015: ELAN Touchpad at I2C: 00:15
[INFO ]  \_SB.PCI0.I2C5.H014: Goodix Touchscreen at I2C: 00:14
[INFO ]  \_SB.PCI0.RP01: Enable RTD3 for PCI: 00:00:1c.0 (Intel PCIe Runtime D3)

BUG=b:451935490
TEST=Build and boot to OS and check touch function work.

Change-Id: I867e10d34e4bed5a5db242a74e8c9ac04657feb9
Signed-off-by: Luca Lai <luca.lai@lcfc.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89757
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
This commit is contained in:
Luca Lai 2025-10-27 10:32:40 +08:00 • committed by Subrata Banik
commit 784d8f25f9
2 changed files with 6 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/mainboard/google/fatcat/variants/ruby/gpio.c
View file

@ -197,7 +197,7 @@ static const struct pad_config gpio_table[] = {
/* GPP_E03: NC */
PAD_NC(GPP_E03, NONE),
/* GPP_E05: TCHSCR_RPT_EN */
PAD_CFG_GPO(GPP_E05, 1, DEEP),
PAD_CFG_GPO(GPP_E05, 0, PLTRST),
/* GPP_E06: SECURE_CAM_SW */
PAD_CFG_GPI_TRIG_OWN(GPP_E06, NONE, PLTRST, LEVEL, ACPI),
/* GPP_E07 : [] ==> EC_SOC_INT_ODL */
@ -254,7 +254,7 @@ static const struct pad_config gpio_table[] = {
/* GPP_F07: NC */
PAD_NC(GPP_F07, NONE),
/* GPP_F08: EN_TCHSCR_PWR */
PAD_CFG_GPO(GPP_F08, 1, DEEP),
PAD_CFG_GPO(GPP_F08, 1, PLTRST),
/* GPP_F09: NC */
PAD_NC(GPP_F09, NONE),
/* GPP_F10: ISH_GP_6_SNSR_HDR */

8
src/mainboard/google/fatcat/variants/ruby/overridetree.cb
View file

@ -278,8 +278,8 @@ chip soc/intel/pantherlake
end # I2C4
device ref i2c5 on
chip drivers/i2c/hid
register "generic.hid" = ""ELAN9004""
register "generic.desc" = ""ELAN Touchscreen""
register "generic.hid" = ""GT7936L""
register "generic.desc" = ""Goodix 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)"
@ -289,11 +289,11 @@ chip soc/intel/pantherlake
register "generic.enable_delay_ms" = "6"
register "generic.enable_off_delay_ms" = "30"
register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E05)"
register "generic.stop_off_delay_ms" = "1"
register "generic.stop_delay_ms" = "1"
register "generic.has_power_resource" = "1"
register "generic.use_gpio_for_status" = "true"
register "hid_desc_reg_offset" = "0x01"
device i2c 0x10 on end
device i2c 0x14 on end
end
end # I2C5
device ref gspi0 on end