lkml.org 
[lkml]   [2021]   [Sep]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5.14 125/168] PCI: iproc: Fix BCMA probe resource handling
Date
From: Rob Herring <robh@kernel.org>

[ Upstream commit aeaea8969b402e0081210cc9144404d13996efed ]

In commit 7ef1c871da16 ("PCI: iproc: Use
pci_parse_request_of_pci_ranges()"), calling
devm_request_pci_bus_resources() was dropped from the common iProc
probe code, but is still needed for BCMA bus probing. Without it, there
will be lots of warnings like this:

pci 0000:00:00.0: BAR 8: no space for [mem size 0x00c00000]
pci 0000:00:00.0: BAR 8: failed to assign [mem size 0x00c00000]

Add back calling devm_request_pci_bus_resources() and adding the
resources to pci_host_bridge.windows for BCMA bus probe.

Link: https://lore.kernel.org/r/20210803215656.3803204-2-robh@kernel.org
Fixes: 7ef1c871da16 ("PCI: iproc: Use pci_parse_request_of_pci_ranges()")
Reported-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Srinath Mannam <srinath.mannam@broadcom.com>
Cc: Roman Bacik <roman.bacik@broadcom.com>
Cc: Bharat Gooty <bharat.gooty@broadcom.com>
Cc: Abhishek Shah <abhishek.shah@broadcom.com>
Cc: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Cc: Ray Jui <ray.jui@broadcom.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: BCM Kernel Feedback <bcm-kernel-feedback-list@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: "Krzysztof Wilczyński" <kw@linux.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pci/controller/pcie-iproc-bcma.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/pci/controller/pcie-iproc-bcma.c b/drivers/pci/controller/pcie-iproc-bcma.c
index 56b8ee7bf330..f918c713afb0 100644
--- a/drivers/pci/controller/pcie-iproc-bcma.c
+++ b/drivers/pci/controller/pcie-iproc-bcma.c
@@ -35,7 +35,6 @@ static int iproc_pcie_bcma_probe(struct bcma_device *bdev)
{
struct device *dev = &bdev->dev;
struct iproc_pcie *pcie;
- LIST_HEAD(resources);
struct pci_host_bridge *bridge;
int ret;

@@ -60,19 +59,16 @@ static int iproc_pcie_bcma_probe(struct bcma_device *bdev)
pcie->mem.end = bdev->addr_s[0] + SZ_128M - 1;
pcie->mem.name = "PCIe MEM space";
pcie->mem.flags = IORESOURCE_MEM;
- pci_add_resource(&resources, &pcie->mem);
+ pci_add_resource(&bridge->windows, &pcie->mem);
+ ret = devm_request_pci_bus_resources(dev, &bridge->windows);
+ if (ret)
+ return ret;

pcie->map_irq = iproc_pcie_bcma_map_irq;

- ret = iproc_pcie_setup(pcie, &resources);
- if (ret) {
- dev_err(dev, "PCIe controller setup failed\n");
- pci_free_resource_list(&resources);
- return ret;
- }
-
bcma_set_drvdata(bdev, pcie);
- return 0;
+
+ return iproc_pcie_setup(pcie, &bridge->windows);
}

static void iproc_pcie_bcma_remove(struct bcma_device *bdev)
--
2.30.2


\
 
 \ /
  Last update: 2021-09-20 21:07    [W:0.868 / U:0.380 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site