usb: dwc3: pci: add support for AMD's newer generation platform.

AMD's latest platforms has DWC3 controller. Add the PCI ID and
properties for the same.

Signed-off-by: Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@amd.com>
Acked-by: Felipe Balbi <balbi@kernel.org>
Link: https://lore.kernel.org/r/20210823184449.2796184-2-Nehal-Bakulchandra.shah@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 2b37bdd..7ff8fc8 100644 (file)
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -44,6 +44,7 @@
 #define PCI_DEVICE_ID_INTEL_ADLM               0x54ee
 #define PCI_DEVICE_ID_INTEL_ADLS               0x7ae1
 #define PCI_DEVICE_ID_INTEL_TGL                        0x9a15
+#define PCI_DEVICE_ID_AMD_MR                   0x163a
 
 #define PCI_INTEL_BXT_DSM_GUID         "732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511"
 #define PCI_INTEL_BXT_FUNC_PMU_PWR     4
@@ -148,6 +149,14 @@ static const struct property_entry dwc3_pci_amd_properties[] = {
        {}
 };
 
+static const struct property_entry dwc3_pci_mr_properties[] = {
+       PROPERTY_ENTRY_STRING("dr_mode", "otg"),
+       PROPERTY_ENTRY_BOOL("usb-role-switch"),
+       PROPERTY_ENTRY_STRING("role-switch-default-mode", "host"),
+       PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
+       {}
+};
+
 static const struct software_node dwc3_pci_intel_swnode = {
        .properties = dwc3_pci_intel_properties,
 };
@@ -160,6 +169,10 @@ static const struct software_node dwc3_pci_amd_swnode = {
        .properties = dwc3_pci_amd_properties,
 };
 
+static const struct software_node dwc3_pci_amd_mr_swnode = {
+       .properties = dwc3_pci_mr_properties,
+};
+
 static int dwc3_pci_quirks(struct dwc3_pci *dwc)
 {
        struct pci_dev                  *pdev = dwc->pci;
@@ -401,6 +414,10 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
 
        { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_NL_USB),
          (kernel_ulong_t) &dwc3_pci_amd_swnode, },
+
+       { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_MR),
+         (kernel_ulong_t)&dwc3_pci_amd_mr_swnode, },
+
        {  }    /* Terminating Entry */
 };
 MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);