mvebu: backport mainline patches from kernel 3.13
[openwrt.git] / target / linux / mvebu / patches-3.10 / 0199-PCI-mvebu-Convert-to-use-devm_ioremap_resource.patch
1 From 508e3a33ebe14ae4444a45b3f65dff5d5e6a4c73 Mon Sep 17 00:00:00 2001
2 From: Tushar Behera <tushar.behera@linaro.org>
3 Date: Mon, 17 Jun 2013 14:46:13 +0530
4 Subject: [PATCH 199/203] PCI: mvebu: Convert to use devm_ioremap_resource
5
6 Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()")
7 introduced devm_ioremap_resource() and deprecated the use of
8 devm_request_and_ioremap().
9
10 While at it, modify mvebu_pcie_map_registers() to propagate error code.
11
12 Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
13 Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
14 Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
15 ---
16  drivers/pci/host/pci-mvebu.c | 7 ++++---
17  1 file changed, 4 insertions(+), 3 deletions(-)
18
19 --- a/drivers/pci/host/pci-mvebu.c
20 +++ b/drivers/pci/host/pci-mvebu.c
21 @@ -736,9 +736,9 @@ mvebu_pcie_map_registers(struct platform
22  
23         ret = of_address_to_resource(np, 0, &regs);
24         if (ret)
25 -               return NULL;
26 +               return ERR_PTR(ret);
27  
28 -       return devm_request_and_ioremap(&pdev->dev, &regs);
29 +       return devm_ioremap_resource(&pdev->dev, &regs);
30  }
31  
32  static void __init mvebu_pcie_msi_enable(struct mvebu_pcie *pcie)
33 @@ -897,9 +897,10 @@ static int __init mvebu_pcie_probe(struc
34                 }
35  
36                 port->base = mvebu_pcie_map_registers(pdev, child, port);
37 -               if (!port->base) {
38 +               if (IS_ERR(port->base)) {
39                         dev_err(&pdev->dev, "PCIe%d.%d: cannot map registers\n",
40                                 port->port, port->lane);
41 +                       port->base = NULL;
42                         continue;
43                 }
44