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mb/google/fatcat/var/ruby: Enable touchpad function using I2C interface

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Modify gpio setting to redundant enable the touchpad.

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:449901218
TEST=Build and boot to OS and use Elan touchpad module to verify the cursor works.

Change-Id: Id84f96eb07c97dddd5cd1498a18317f9a1676b55
Signed-off-by: Luca Lai <luca.lai@lcfc.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89758
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: YH Lin <yueherngl@google.com>
This commit is contained in:
Luca Lai 2025-10-27 10:50:19 +08:00 • committed by Subrata Banik
commit a748e8b82b
1 changed files with 2 additions and 2 deletions
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4
src/mainboard/google/fatcat/variants/ruby/gpio.c
View file

@ -209,9 +209,9 @@ static const struct pad_config gpio_table[] = {
/* GPP_E11: NC */
PAD_NC(GPP_E11, NONE),
/* GPP_E12: THC0_SPI1_IO_0_I2C4_SCL_TCH_PAD1*/
PAD_CFG_NF(GPP_E12, NONE, DEEP, NF3),
PAD_CFG_NF(GPP_E12, NONE, DEEP, NF8),
/* GPP_E13: THC0_SPI1_IO_1_I2C4_SDA_TCH_PAD1 */
PAD_CFG_NF(GPP_E13, NONE, DEEP, NF3),
PAD_CFG_NF(GPP_E13, NONE, DEEP, NF8),
/* GPP_E14: NC */
PAD_NC(GPP_E14, NONE),
/* GPP_E15: NC */