[PATCH 6/7] staging: mt7621-pci: convert to use 'devm_platform_ioremap_resource'
Sergio Paracuellos
sergio.paracuellos at gmail.com
Mon Nov 23 09:36:36 UTC 2020
Instead of getting resources parsing from DT first and remaping
afterwards, this can be done in one step using the kernel function
'devm_platform_ioremap_resource'. Hence, update to use it.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos at gmail.com>
---
drivers/staging/mt7621-pci/pci-mt7621.c | 24 ++++--------------------
1 file changed, 4 insertions(+), 20 deletions(-)
diff --git a/drivers/staging/mt7621-pci/pci-mt7621.c b/drivers/staging/mt7621-pci/pci-mt7621.c
index a0b3ec51c7d9..4cdaccbcc97c 100644
--- a/drivers/staging/mt7621-pci/pci-mt7621.c
+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
@@ -337,28 +337,18 @@ static int mt7621_pci_parse_request_of_pci_ranges(struct pci_host_bridge *host)
}
static int mt7621_pcie_parse_port(struct mt7621_pcie *pcie,
- struct device_node *node,
int slot)
{
struct mt7621_pcie_port *port;
struct device *dev = pcie->dev;
struct platform_device *pdev = to_platform_device(dev);
- struct device_node *pnode = dev->of_node;
- struct resource regs;
char name[10];
- int err;
port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL);
if (!port)
return -ENOMEM;
- err = of_address_to_resource(pnode, slot + 1, ®s);
- if (err) {
- dev_err(dev, "missing \"reg\" property\n");
- return err;
- }
-
- port->base = devm_ioremap_resource(dev, ®s);
+ port->base = devm_platform_ioremap_resource(pdev, slot + 1);
if (IS_ERR(port->base))
return PTR_ERR(port->base);
@@ -399,17 +389,11 @@ static int mt7621_pcie_parse_port(struct mt7621_pcie *pcie,
static int mt7621_pcie_parse_dt(struct mt7621_pcie *pcie)
{
struct device *dev = pcie->dev;
+ struct platform_device *pdev = to_platform_device(dev);
struct device_node *node = dev->of_node, *child;
- struct resource regs;
int err;
- err = of_address_to_resource(node, 0, ®s);
- if (err) {
- dev_err(dev, "missing \"reg\" property\n");
- return err;
- }
-
- pcie->base = devm_ioremap_resource(dev, ®s);
+ pcie->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(pcie->base))
return PTR_ERR(pcie->base);
@@ -425,7 +409,7 @@ static int mt7621_pcie_parse_dt(struct mt7621_pcie *pcie)
slot = PCI_SLOT(err);
- err = mt7621_pcie_parse_port(pcie, child, slot);
+ err = mt7621_pcie_parse_port(pcie, slot);
if (err) {
of_node_put(child);
return err;
--
2.25.1
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