linux-kernel - [PATCH 3/4] PCI: rcar-pcie: Set root bus nr to that provided in DT

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Date:	Fri, 2 Oct 2015 11:25:06 +0100
From:	Phil Edworthy <phil.edworthy@...esas.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Simon Horman <horms@...ge.net.au>,
	Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	linux-pci@...r.kernel.org, linux-sh@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Phil Edworthy <phil.edworthy@...esas.com>
Subject: [PATCH 3/4] PCI: rcar-pcie: Set root bus nr to that provided in DT

On ARM64, setting the root bus number to -1 causes probe failure.
Moreover, we should use the bus number specified in the DT as we
could have multiple PCIe controllers with different bus ranges.

Signed-off-by: Phil Edworthy <phil.edworthy@...esas.com>
---
 drivers/pci/host/pcie-rcar.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 6057e31..8e583c2 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -362,7 +362,7 @@ static int rcar_pcie_setup(int nr, struct list_head *resource, struct rcar_pcie
 	struct resource *res;
 	int i;
 
-	pcie->root_bus_nr = -1;
+	pcie->root_bus_nr = pcie->busn.start;
 
 	/* Setup PCI resources */
 	for (i = 0; i < RCAR_PCI_MAX_RESOURCES; i++) {
-- 
1.9.1

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