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Date:   Fri, 14 Aug 2020 16:08:13 +0800
From:   Zhiqiang Hou <>
Cc:     Hou Zhiqiang <>
Subject: [PATCH] PCI: designware-ep: Fix the Header Type check

From: Hou Zhiqiang <>

The current check will result in the multiple function device
fails to initialize. So fix the check by masking out the
multiple function bit.

Fixes: 0b24134f7888 ("PCI: dwc: Add validation that PCIe core is set to correct mode")
Signed-off-by: Hou Zhiqiang <>
 drivers/pci/controller/dwc/pcie-designware-ep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index 4680a51c49c0..4b7abfb1e669 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -654,7 +654,7 @@ int dw_pcie_ep_init_complete(struct dw_pcie_ep *ep)
 	int i;
 	hdr_type = dw_pcie_readb_dbi(pci, PCI_HEADER_TYPE);
-	if (hdr_type != PCI_HEADER_TYPE_NORMAL) {
+	if (hdr_type & 0x7f != PCI_HEADER_TYPE_NORMAL) {
 			"PCIe controller is not set to EP mode (hdr_type:0x%x)!\n",

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