src/mainboard/google/cyan/acpi/trackpad_elan.asl

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 Scope (\_SB.PCI0.I2C6)
   4 {
   5         Device (ETPA)
   6         {
   7                 Name (_HID, "ELAN0000")
   8                 Name (_DDN, "Elan Touchpad")
   9                 Name (_UID, 3)
  10                 Name (ISTP, 1) /* Touchpad */
  11
  12                 Name (_CRS, ResourceTemplate()
  13                 {
  14                         I2cSerialBus (
  15                                 0x15,                     /* SlaveAddress */
  16                                 ControllerInitiated,      /* SlaveMode */
  17                                 400000,                   /* ConnectionSpeed */
  18                                 AddressingMode7Bit,       /* AddressingMode */
  19                                 "\\_SB.PCI0.I2C6",        /* ResourceSource */
  20                         )
  21                         GpioInt (Level, ActiveLow, SharedAndWake, PullDefault,,
  22                                  "\\_SB.GPNC") { BOARD_TRACKPAD_GPIO_INDEX }
  23                 })
  24
  25                 Method (_STA)
  26                 {
  27                         If (\S6EN == 1) {
  28                                 Return (0xF)
  29                         } Else {
  30                                 Return (0x0)
  31                         }
  32                 }
  33 #if CONFIG(CHROMEOS)
  34                 Name (_PRW, Package() { BOARD_TRACKPAD_WAKE_GPIO, 0x3 })
  35 #endif
  36                 /* Allow device to power off in S0 */
  37                 Name (_S0W, 4)
  38         }
  39 }