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mb/google/guybrush: Add Elan Touchpad configuration 

Enable Touchpad by configuring the enable GPIO to logic high. Add
touchpad configuration for ELAN touchpad.

BUG=b:182207444
TEST=Build and boot to OS in Guybrush. Ensure that the trackpad events
are detected using evtest.

Change-Id: Ib47fbb33f2b181eb85f6ded98a5b0ce08fbc7b64
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51962
Reviewed-by: Mathew King <mathewk@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Karthikeyan Ramasubramanian 2021-03-30 15:34:47 -06:00 committed by Karthik Ramasubramanian
parent 9965228c66
commit 0f4191204b
2 changed files with 11 additions and 1 deletions
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2
src/mainboard/google/guybrush/variants/baseboard/gpio.c
View File

@ -22,7 +22,7 @@ static const struct soc_amd_gpio base_gpio_table[] = {
/* EN_PP3300_WLAN */ /* EN_PP3300_WLAN */
PAD_GPO(GPIO_6, LOW), PAD_GPO(GPIO_6, LOW),
/* EN_PP3300_TCHPAD */ /* EN_PP3300_TCHPAD */
PAD_GPO(GPIO_7, LOW), PAD_GPO(GPIO_7, HIGH),
/* EN_PWR_WWAN_X */ /* EN_PWR_WWAN_X */
PAD_GPO(GPIO_8, LOW), PAD_GPO(GPIO_8, LOW),
/* SOC_TCHPAD_INT_ODL */ /* SOC_TCHPAD_INT_ODL */

10
src/mainboard/google/guybrush/variants/guybrush/overridetree.cb
View File

@ -61,4 +61,14 @@ chip soc/amd/cezanne
.early_init = true, .early_init = true,
}" }"
device ref i2c_0 on
chip drivers/i2c/generic
register "hid" = ""ELAN0000""
register "desc" = ""ELAN Touchpad""
register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_9)"
register "wake" = "GEVENT_22"
register "probed" = "1"
device i2c 15 on end
end
end # I2C0
end # chip soc/amd/cezanne end # chip soc/amd/cezanne