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glados: Add touchscreen device in ACPI 

Add the ELAN touchscreen device in ACPI to bind it to the I2C
device at bus I2C0, address 0x10, interrupt 31 (GPP_E7).

BUG=chrome-os-partner:43514
BRANCH=none
TEST=boot on glados P2 and see touchscreen initialized by kernel

Original-Change-Id: I23b071b2767547baed239c94216cda6162d045dd
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/293512
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: I8a9492e6fa1f650cef0871329ae8944caffdaf5a
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/11278
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Duncan Laurie 2015-08-13 12:27:56 -07:00 committed by Aaron Durbin
parent 35a32064f1
commit a40b7f3e1d
1 changed files with 35 additions and 0 deletions
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35
src/mainboard/google/glados/acpi/mainboard.asl
View File

@ -22,6 +22,9 @@
#define BOARD_TOUCHPAD_I2C_ADDR 0x15 #define BOARD_TOUCHPAD_I2C_ADDR 0x15
#define BOARD_TOUCHPAD_IRQ GPP_B3_IRQ #define BOARD_TOUCHPAD_IRQ GPP_B3_IRQ
#define BOARD_TOUCHSCREEN_I2C_ADDR 0x10
#define BOARD_TOUCHSCREEN_IRQ GPP_E7_IRQ
#define BOARD_HP_MIC_CODEC_I2C_ADDR 0x1a #define BOARD_HP_MIC_CODEC_I2C_ADDR 0x1a
#define BOARD_LEFT_SPEAKER_AMP_I2C_ADDR 0x34 #define BOARD_LEFT_SPEAKER_AMP_I2C_ADDR 0x34
#define BOARD_RIGHT_SPEAKER_AMP_I2C_ADDR 0x35 #define BOARD_RIGHT_SPEAKER_AMP_I2C_ADDR 0x35
@ -72,6 +75,38 @@ Scope (\_SB.PCI0.LPCB)
#include <drivers/pc80/tpm/acpi/tpm.asl> #include <drivers/pc80/tpm/acpi/tpm.asl>
} }
Scope (\_SB.PCI0.I2C0)
{
/* Touchscreen */
Device (ELTS)
{
Name (_HID, "ELAN0001")
Name (_DDN, "Elan Touchscreen")
Name (_UID, 1)
Name (_S0W, 4)
Name (_CRS, ResourceTemplate()
{
I2cSerialBus (
BOARD_TOUCHSCREEN_I2C_ADDR,
ControllerInitiated,
400000,
AddressingMode7Bit,
"\\_SB.PCI0.I2C0",
)
Interrupt (ResourceConsumer, Edge, ActiveLow)
{
BOARD_TOUCHSCREEN_IRQ
}
})
Method (_STA)
{
Return (0xF)
}
}
}
Scope (\_SB.PCI0.I2C1) Scope (\_SB.PCI0.I2C1)
{ {
/* Touchpad */ /* Touchpad */