[PATCH v4.8] thunderbolt: Support Alpine Ridge 4C controller

0001-thunderbolt-Support-Alpine-Ridge-4C-controller.patch

From 5a9dfafbf50bbdaa62f8cd10bc35caa8baff1b3b Mon Sep 17 00:00:00 2001
From: Lukas Wunner <lukas@wunner.de>
Date: Wed, 2 Nov 2016 17:13:39 +0100
Subject: [PATCH v4.8] thunderbolt: Support Alpine Ridge 4C controller

Add support for the Alpine Ridge 4C controller (C step, JHL6540),
which is built into these systems so far:

  MacBookPro13,1  2016  13"
  MacBookPro13,2  2016  13" with Touch Bar
  MacBookPro13,3  2016  15" with Touch Bar

Cc: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
---
 drivers/pci/quirks.c         | 6 +++++-
 drivers/thunderbolt/nhi.c    | 6 ++++++
 drivers/thunderbolt/switch.c | 3 ++-
 include/linux/pci_ids.h      | 2 ++
 4 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 44e0ff3..24be655 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3328,7 +3328,8 @@ static void quirk_apple_wait_for_thunderbolt(struct pci_dev *dev)
 		    || (nhi->device != PCI_DEVICE_ID_INTEL_LIGHT_RIDGE &&
 			nhi->device != PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C &&
 			nhi->device != PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_NHI &&
-			nhi->device != PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_NHI)
+			nhi->device != PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_NHI &&
+			nhi->device != PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_NHI)
 		    || nhi->class != PCI_CLASS_SYSTEM_OTHER << 8)
 		goto out;
 	dev_info(&dev->dev, "quirk: waiting for thunderbolt to reestablish PCI tunnels...\n");
@@ -3349,6 +3350,9 @@ DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL,
 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL,
 			       PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE,
 			       quirk_apple_wait_for_thunderbolt);
+DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL,
+			       PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_BRIDGE,
+			       quirk_apple_wait_for_thunderbolt);
 #endif
 
 static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index a8c2041..41316a5 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -660,6 +660,12 @@ static struct pci_device_id nhi_ids[] = {
 		.device = PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_NHI,
 		.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID,
 	},
+	{
+		.class = PCI_CLASS_SYSTEM_OTHER << 8, .class_mask = ~0,
+		.vendor = PCI_VENDOR_ID_INTEL,
+		.device = PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_NHI,
+		.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID,
+	},
 	{ 0,}
 };
 
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 9840fde..5fef30a 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -374,7 +374,8 @@ struct tb_switch *tb_switch_alloc(struct tb *tb, u64 route)
 	    sw->config.device_id != PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C &&
 	    sw->config.device_id != PCI_DEVICE_ID_INTEL_PORT_RIDGE &&
 	    sw->config.device_id != PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_BRIDGE &&
-	    sw->config.device_id != PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE)
+	    sw->config.device_id != PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE &&
+	    sw->config.device_id != PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_BRIDGE)
 		tb_sw_warn(sw, "unsupported switch device id %#x\n",
 			   sw->config.device_id);
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index c58752f..7294fd4 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2622,6 +2622,8 @@
 #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_BRIDGE  0x1576
 #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_NHI     0x1577
 #define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_BRIDGE  0x1578
+#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_NHI   0x15d2
+#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_BRIDGE 0x15d3
 #define PCI_DEVICE_ID_INTEL_80960_RP	0x1960
 #define PCI_DEVICE_ID_INTEL_82840_HB	0x1a21
 #define PCI_DEVICE_ID_INTEL_82845_HB	0x1a30
-- 
2.10.2