linux-kernel - [PATCH 4/4] xhci-pci: Allow host runtime PM as default for AMD Pink Sardine

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Date:   Wed, 5 Oct 2022 15:23:52 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     <mathias.nyman@...el.com>, <mika.westerberg@...ux.intel.com>
CC:     <Sanju.Mehta@....com>,
        Mario Limonciello <mario.limonciello@....com>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/4] xhci-pci: Allow host runtime PM as default for AMD Pink Sardine

The XHCI controllers not connected to the USB4 controller via a device
link can support D3. For optimal runtime power consumption on AMD Pink
Sardine, all XHCI controllers must support runtime suspend.

Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
RFC v1->PATCH v1
 * Rebase on moving IDs into a table
---
 drivers/usb/host/xhci-pci.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index c17f748b05929..8e7ed038880b5 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -71,6 +71,8 @@
 #define PCI_DEVICE_ID_AMD_REMBRANDT_XHCI_4		0x161e
 #define PCI_DEVICE_ID_AMD_REMBRANDT_XHCI_5		0x161c
 #define PCI_DEVICE_ID_AMD_REMBRANDT_XHCI_6		0x161f
+#define PCI_DEVICE_ID_AMD_PINK_SARDINE_XHCI_1		0x15b9
+#define PCI_DEVICE_ID_AMD_PINK_SARDINE_XHCI_2		0x15ba
 
 #define PCI_DEVICE_ID_ASMEDIA_1042_XHCI			0x1042
 #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI		0x1142
@@ -100,6 +102,8 @@ static const struct pci_device_id runtime_allow_pci_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_REMBRANDT_XHCI_4) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_REMBRANDT_XHCI_5) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_REMBRANDT_XHCI_6) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PINK_SARDINE_XHCI_1) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_PINK_SARDINE_XHCI_2) },
 	{ 0 }
 };
 
-- 
2.34.1