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Date: Tue, 13 Aug 2013 14:25:22 +0200
From: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
To: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc: Russell King <linux@....linux.org.uk>,
Jason Cooper <jason@...edaemon.net>,
Andrew Lunn <andrew@...n.ch>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
Thierry Reding <thierry.reding@...il.com>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-pci@...r.kernel.org
Subject: [PATCH v2 3/5] PCI: mvebu: remove subsys_initcall
This removes the subsys_initcall from the driver and converts it to
a normal platform_driver. Also, drvdata is set and a remove functions
is added to disable the clock and free resources. As pci driver removal
currently is not supported, set .suppress_bind_attrs to permit unbinding.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
---
Changelog:
v1->v2:
- do not add .remove and set .suppress_bind_attrs to permit currently
unsupported driver unloading/unbinding (Reported by Thierry Reding and
Thomas Petazzoni)
- Note: I left the platform_set_drvdata(), as we will require that later
for device removal.
Cc: Russell King <linux@....linux.org.uk>
Cc: Jason Cooper <jason@...edaemon.net>
Cc: Andrew Lunn <andrew@...n.ch>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc: Thierry Reding <thierry.reding@...il.com>
Cc: linux-kernel@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-pci@...r.kernel.org
---
drivers/pci/host/pci-mvebu.c | 33 ++++++++++++++-------------------
1 file changed, 14 insertions(+), 19 deletions(-)
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index d2e9ae7..bd7092a 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -165,7 +165,7 @@ static void mvebu_pcie_set_local_dev_nr(struct mvebu_pcie_port *port, int nr)
* BAR[0,2] -> disabled, BAR[1] -> covers all DRAM banks
* WIN[0-3] -> DRAM bank[0-3]
*/
-static void __init mvebu_pcie_setup_wins(struct mvebu_pcie_port *port)
+static void mvebu_pcie_setup_wins(struct mvebu_pcie_port *port)
{
const struct mbus_dram_target_info *dram;
u32 size;
@@ -217,7 +217,7 @@ static void __init mvebu_pcie_setup_wins(struct mvebu_pcie_port *port)
port->base + PCIE_BAR_CTRL_OFF(1));
}
-static void __init mvebu_pcie_setup_hw(struct mvebu_pcie_port *port)
+static void mvebu_pcie_setup_hw(struct mvebu_pcie_port *port)
{
u16 cmd;
u32 mask;
@@ -628,7 +628,7 @@ static struct pci_ops mvebu_pcie_ops = {
.write = mvebu_pcie_wr_conf,
};
-static int __init mvebu_pcie_setup(int nr, struct pci_sys_data *sys)
+static int mvebu_pcie_setup(int nr, struct pci_sys_data *sys)
{
struct mvebu_pcie *pcie = sys_to_pcie(sys);
int i;
@@ -647,7 +647,7 @@ static int __init mvebu_pcie_setup(int nr, struct pci_sys_data *sys)
return 1;
}
-static int __init mvebu_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+static int mvebu_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
struct of_irq oirq;
int ret;
@@ -704,7 +704,7 @@ resource_size_t mvebu_pcie_align_resource(struct pci_dev *dev,
return start;
}
-static void __init mvebu_pcie_enable(struct mvebu_pcie *pcie)
+static void mvebu_pcie_enable(struct mvebu_pcie *pcie)
{
struct hw_pci hw;
@@ -727,10 +727,8 @@ static void __init mvebu_pcie_enable(struct mvebu_pcie *pcie)
* <...> property for one that matches the given port/lane. Once
* found, maps it.
*/
-static void __iomem * __init
-mvebu_pcie_map_registers(struct platform_device *pdev,
- struct device_node *np,
- struct mvebu_pcie_port *port)
+static void __iomem *mvebu_pcie_map_registers(struct platform_device *pdev,
+ struct device_node *np, struct mvebu_pcie_port *port)
{
struct resource regs;
int ret = 0;
@@ -786,7 +784,7 @@ static int mvebu_get_tgt_attr(struct device_node *np, int devfn,
return -ENOENT;
}
-static void __init mvebu_pcie_msi_enable(struct mvebu_pcie *pcie)
+static void mvebu_pcie_msi_enable(struct mvebu_pcie *pcie)
{
struct device_node *msi_node;
@@ -801,7 +799,7 @@ static void __init mvebu_pcie_msi_enable(struct mvebu_pcie *pcie)
pcie->msi->dev = &pcie->pdev->dev;
}
-static int __init mvebu_pcie_probe(struct platform_device *pdev)
+static int mvebu_pcie_probe(struct platform_device *pdev)
{
struct mvebu_pcie *pcie;
struct device_node *np = pdev->dev.of_node;
@@ -814,6 +812,7 @@ static int __init mvebu_pcie_probe(struct platform_device *pdev)
return -ENOMEM;
pcie->pdev = pdev;
+ platform_set_drvdata(pdev, pcie);
/* Get the PCIe memory and I/O aperture */
mvebu_mbus_get_pcie_mem_aperture(&pcie->mem);
@@ -956,16 +955,12 @@ static struct platform_driver mvebu_pcie_driver = {
.name = "mvebu-pcie",
.of_match_table =
of_match_ptr(mvebu_pcie_of_match_table),
+ /* driver unloading/unbinding currently not supported */
+ .suppress_bind_attrs = true,
},
+ .probe = mvebu_pcie_probe,
};
-
-static int __init mvebu_pcie_init(void)
-{
- return platform_driver_probe(&mvebu_pcie_driver,
- mvebu_pcie_probe);
-}
-
-subsys_initcall(mvebu_pcie_init);
+module_platform_driver(mvebu_pcie_driver);
MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>");
MODULE_DESCRIPTION("Marvell EBU PCIe driver");
--
1.7.10.4
--
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