linux-kernel - [RFC 2/3] xhci-pci: Remove a number of controllers from the runtime PM allowlist

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Date:   Mon, 3 Oct 2022 23:12:24 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     Mika Westerberg <mika.westerberg@...ux.intel.com>
CC:     "open list:THUNDERBOLT DRIVER" <linux-usb@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <Sanju.Mehta@....com>,
        Mario Limonciello <mario.limonciello@....com>
Subject: [RFC 2/3] xhci-pci: Remove a number of controllers from the runtime PM allowlist

When creating a device link from the XHCI PCI device to the USB4 router
the thunderbolt driver will opt the XHCI PCI device into runtime PM.

As such it's not necessary to include a hardcoded list of these XHCI
controllers.  This is effectively a full or partial revert of the following
commits:

* commit 8ffdc53a60049 ("xhci-pci: Allow host runtime PM as default for
Intel Meteor Lake xHCI")
* commit 7516da47a349e ("xhci-pci: Allow host runtime PM as default for
Intel Raptor Lake xHCI")
* commit 74f55a62c4c35 ("xhci: Allow host runtime PM as default for
Intel Alder Lake N xHCI")
* commit b813511135e8b ("xhci-pci: Allow host runtime PM as default for
Intel Alder Lake xHCI")
* commit 6a7c533d4a185 ("xhci-pci: Allow host runtime PM as default for
Intel Tiger Lake xHCI")
* commit 07a594f353655 ("xhci-pci: Allow host runtime PM as default also
for Intel Ice Lake xHCI")
* commit f886d4fbb7c97 ("usb: xhci: Extend support for runtime power
management for AMD's Yellow carp.")

Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
 drivers/usb/host/xhci-pci.c | 24 ++++--------------------
 1 file changed, 4 insertions(+), 20 deletions(-)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index dce6c0ec8d340..44defa8b796f7 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -54,15 +54,9 @@
 #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI		0x15e9
 #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI		0x15ec
 #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI		0x15f0
-#define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI		0x8a13
 #define PCI_DEVICE_ID_INTEL_CML_XHCI			0xa3af
-#define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI		0x9a13
 #define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI		0x1138
-#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_XHCI		0x461e
-#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_XHCI		0x464e
 #define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI	0x51ed
-#define PCI_DEVICE_ID_INTEL_RAPTOR_LAKE_XHCI		0xa71e
-#define PCI_DEVICE_ID_INTEL_METEOR_LAKE_XHCI		0x7ec0
 
 #define PCI_DEVICE_ID_AMD_RENOIR_XHCI			0x1639
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_4			0x43b9
@@ -73,10 +67,8 @@
 #define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_2		0x161b
 #define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3		0x161d
 #define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4		0x161e
-#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5		0x15d6
-#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6		0x15d7
-#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_7		0x161c
-#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_8		0x161f
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5		0x161c
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6		0x161f
 
 #define PCI_DEVICE_ID_ASMEDIA_1042_XHCI			0x1042
 #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI		0x1142
@@ -266,14 +258,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	     pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI ||
 	     pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI ||
 	     pdev->device == PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI ||
-	     pdev->device == PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI ||
-	     pdev->device == PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI ||
 	     pdev->device == PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI ||
-	     pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_XHCI ||
-	     pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_XHCI ||
-	     pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI ||
-	     pdev->device == PCI_DEVICE_ID_INTEL_RAPTOR_LAKE_XHCI ||
-	     pdev->device == PCI_DEVICE_ID_INTEL_METEOR_LAKE_XHCI))
+	     pdev->device == PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI))
 		xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
 
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
@@ -342,9 +328,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3 ||
 	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4 ||
 	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5 ||
-	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6 ||
-	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_7 ||
-	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_8))
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6))
 		xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
 
 	if (xhci->quirks & XHCI_RESET_ON_RESUME)
-- 
2.34.1