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auron: add isl29018 i2c ALS to the ACPI resources

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Copied dlaurie's entry from Rambi board. On Auron/Peppy
board, IRQ is hooked to GPIO 51. Based on table 5-36, this
is PIRQT. Then based on table 5-12, this is IRQ #35.

Thanks to Duncan for the pointer!

BUG=chrome-os-partner:32237
TEST=check if ALS is found by the kernel

Change-Id: I97bd932b48a6512632ee747715926a5761a7aeca
Signed-off-by: Wenkai Du <wenkai.du@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/219631
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
This commit is contained in:
Wenkai Du 2014-09-23 17:00:14 -07:00 • committed by chrome-internal-fetch
commit 67f0cc81af
1 changed files with 41 additions and 0 deletions
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41
src/mainboard/google/auron/acpi/mainboard.asl
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@ -195,4 +195,45 @@ Scope (\_SB.PCI0.I2C1)
}
}
}
Device (ALSI)
{
/*
* TODO(dlaurie): Need official HID.
*
* The current HID is created from the Intersil PNP
* Vendor ID "LSD" and a shortened device identifier.
*/
Name (_HID, EisaId ("LSD2918"))
Name (_DDN, "Intersil 29018 Ambient Light Sensor")
Name (_UID, 6)
Name (_CRS, ResourceTemplate()
{
I2cSerialBus (
0x44, // SlaveAddress
ControllerInitiated, // SlaveMode
400000, // ConnectionSpeed
AddressingMode7Bit, // AddressingMode
"\\_SB.I2C1", // ResourceSource
)
// On Auron/Peppy board, IRQ is hooked to GPIO 51.
// Based on table 5-36, this is PIRQT. Then based on
// table 5-12, this is IRQ #35.
Interrupt (ResourceConsumer, Edge, ActiveLow)
{
35
}
})
Method (_STA)
{
If (LEqual (\S2EN, 1)) {
Return (0xF)
} Else {
Return (0x0)
}
}
}
}