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mb/google/dedede/var/pirika: Add Elan touchscreen support 

Enable I2C2 and register touchscreen ACPI device for pirika.

BUG=b:236564261
TEST=touch screen is functional.

Signed-off-by: Frank Chu <frank_chu@pegatron.corp-partner.google.com>
Change-Id: Id2fd5606b7126eabc1c88bf516198ff00b5d75dd
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65967
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
This commit is contained in:
FrankChu 2022-07-19 14:44:59 +08:00 committed by Felix Held
parent 71a488d428
commit b85997df25
1 changed files with 21 additions and 1 deletions
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22
src/mainboard/google/dedede/variants/pirika/overridetree.cb
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@ -9,6 +9,7 @@ chip soc/intel/jasperlake
#| | for TPM communication |
#| | before memory is up |
#| I2C0 | Trackpad |
#| I2C2 | Touchscreen |
#| I2C4 | Audio |
#+-------------------+---------------------------+
register "common_soc_config" = "{
@ -21,6 +22,11 @@ chip soc/intel/jasperlake
.rise_time_ns = 260,
.fall_time_ns = 50,
},
.i2c[2] = {
.speed = I2C_SPEED_FAST,
.rise_time_ns = 175,
.fall_time_ns = 20,
},
.i2c[4] = {
.speed = I2C_SPEED_FAST,
.rise_time_ns = 260,
@ -31,7 +37,7 @@ chip soc/intel/jasperlake
register "SerialIoI2cMode" = "{
[PchSerialIoIndexI2C0] = PchSerialIoPci,
[PchSerialIoIndexI2C1] = PchSerialIoDisabled,
[PchSerialIoIndexI2C2] = PchSerialIoDisabled,
[PchSerialIoIndexI2C2] = PchSerialIoPci,
[PchSerialIoIndexI2C3] = PchSerialIoDisabled,
[PchSerialIoIndexI2C4] = PchSerialIoPci,
}"
@ -127,6 +133,20 @@ chip soc/intel/jasperlake
device i2c 0x2c on end
end
end
device pci 15.2 on
chip drivers/i2c/generic
register "hid" = ""ELAN0001""
register "desc" = ""ELAN Touchscreen""
register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_D4_IRQ)"
register "probed" = "1"
register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D5)"
register "reset_delay_ms" = "20"
register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D6)"
register "enable_delay_ms" = "1"
register "has_power_resource" = "1"
device i2c 10 on end
end
end # I2C 2
device pci 19.0 on
chip drivers/i2c/generic
register "hid" = ""10EC5682""