From 469b5205c31eeb7f58e66aaec58ef824f2e090a5 Mon Sep 17 00:00:00 2001
From: Duncan Laurie <dlaurie@chromium.org>
Date: Mon, 13 Jan 2014 16:37:51 -0800
Subject: rambi: Add ACPI devices and interrupts for codec and ALS

The Codec and ALS both have interrupt sources that can be configured.
The ALS kernel driver currently does not try to use it but the codec
driver does for things like jack detect.

ACPI Devices are added, but as with other ACPI devices the HID may
need to be updated once more official strings are decided.

BUG=chrome-os-partner:24380
BRANCH=baytrail
TEST=manual: build and boot on rambi and check for functional lightsensor

Change-Id: Ib51a2aaf32d5597926fcbe9183947e9ac53e1468
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/182366
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5049
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
---
 src/mainboard/google/rambi/acpi/mainboard.asl | 80 +++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)

(limited to 'src/mainboard/google/rambi/acpi/mainboard.asl')

diff --git a/src/mainboard/google/rambi/acpi/mainboard.asl b/src/mainboard/google/rambi/acpi/mainboard.asl
index 9b16272a14..501bbf7020 100644
--- a/src/mainboard/google/rambi/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/acpi/mainboard.asl
@@ -205,6 +205,86 @@ Scope (\_SB.I2C1)
 	}
 }
 
+Scope (\_SB.I2C2)
+{
+	Device (CODC)
+	{
+		/*
+		 * TODO(dlaurie): Need official HID.
+		 *
+		 * The current HID is created from the Maxim Integrated
+		 * PCI Vendor ID 193Ch and a shortened device identifier.
+		 */
+		Name (_HID, "193C9890")
+		Name (_DDN, "Maxim 98090 Codec")
+		Name (_UID, 1)
+
+		Name (_CRS, ResourceTemplate()
+		{
+			I2cSerialBus (
+				0x10,                     // SlaveAddress
+				ControllerInitiated,      // SlaveMode
+				400000,                   // ConnectionSpeed
+				AddressingMode7Bit,       // AddressingMode
+				"\_SB.I2C2",              // ResourceSource
+			)
+			Interrupt (ResourceConsumer, Edge, ActiveLow)
+			{
+				BOARD_CODEC_IRQ
+			}
+		})
+
+		Method (_STA)
+		{
+			If (LEqual (\S2EN, 1)) {
+				Return (0xF)
+			} Else {
+				Return (0x0)
+			}
+		}
+	}
+}
+
+Scope (\_SB.I2C5)
+{
+	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, 1)
+
+		Name (_CRS, ResourceTemplate()
+		{
+			I2cSerialBus (
+				0x44,                     // SlaveAddress
+				ControllerInitiated,      // SlaveMode
+				400000,                   // ConnectionSpeed
+				AddressingMode7Bit,       // AddressingMode
+				"\_SB.I2C5",              // ResourceSource
+			)
+			Interrupt (ResourceConsumer, Edge, ActiveLow)
+			{
+				BOARD_ALS_IRQ
+			}
+		})
+
+		Method (_STA)
+		{
+			If (LEqual (\S5EN, 1)) {
+				Return (0xF)
+			} Else {
+				Return (0x0)
+			}
+		}
+	}
+}
+
 Scope (\_SB.I2C6)
 {
 	Device (ATSB)
-- 
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