FROMLIST: pci: quirks: Advertise D3cold capability for UPD720201

PCIe-to-USB bridge UPD720201 does not advertise D3cold
support until firmware is loaded post pci enumeration.
This results in upd blocking D3cold entry during system
suspend and causing overall failure to enter XO
shutdown.

Hence, add a quirk to advertise D3cold PME capability
since the HW actually supports and advertises it post
firmware loading.

Link: https://lore.kernel.org/all/20260430-d3cold_support-v1-1-6734f280c481@oss.qualcomm.com/
Signed-off-by: Sushrut Shree Trivedi <sushrut.trivedi@oss.qualcomm.com>

Author: sushrut-trivedi

drivers/pci/quirks.c

@@ -6429,3 +6429,13 @@ static void pci_mask_replay_timer_timeout(struct pci_dev *pdev)
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_GLI, 0x9750, pci_mask_replay_timer_timeout);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_GLI, 0x9755, pci_mask_replay_timer_timeout);
 #endif
+
+/*
+ * Renesas PCIe-to-USB bridge UPD720201 does not advertise D3cold
+ * capability by default until firmware is loaded post-enumeration.
+ */
+static void quirk_enable_d3cold(struct pci_dev *dev)
+{
+	dev->pme_support = dev->pme_support | (1 << PCI_D3cold);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_RENESAS, 0x0014, quirk_enable_d3cold);