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PCI: Add fwnode handler as input param of pci_register_io_range() 

In preparation for having the PCI MMIO helpers use the new generic I/O
space management (logical PIO) we need to add the fwnode handler as an
extra input parameter.

Changes the signature of pci_register_io_range() and its callers as
needed.

Tested-by: dann frazier <dann.frazier@canonical.com>
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Gabriele Paoloni 2018-03-15 02:15:52 +08:00 committed by Bjorn Helgaas
parent e2515476ab
commit fcfaab3093
4 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/acpi/pci_root.c
View File

@ -729,7 +729,8 @@ next:
}
}
static void acpi_pci_root_remap_iospace(struct resource_entry *entry)
static void acpi_pci_root_remap_iospace(struct fwnode_handle *fwnode,
struct resource_entry *entry)
{
#ifdef PCI_IOBASE
struct resource *res = entry->res;
@ -738,7 +739,7 @@ static void acpi_pci_root_remap_iospace(struct resource_entry *entry)
resource_size_t length = resource_size(res);
unsigned long port;
if (pci_register_io_range(cpu_addr, length))
if (pci_register_io_range(fwnode, cpu_addr, length))
goto err;
port = pci_address_to_pio(cpu_addr);
@ -780,7 +781,8 @@ int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info)
else {
resource_list_for_each_entry_safe(entry, tmp, list) {
if (entry->res->flags & IORESOURCE_IO)
acpi_pci_root_remap_iospace(entry);
acpi_pci_root_remap_iospace(&device->fwnode,
entry);
if (entry->res->flags & IORESOURCE_DISABLED)
resource_list_destroy_entry(entry);

4
drivers/of/address.c
View File

@ -2,6 +2,7 @@
#define pr_fmt(fmt) "OF: " fmt
#include <linux/device.h>
#include <linux/fwnode.h>
#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/module.h>
@ -333,7 +334,8 @@ int of_pci_range_to_resource(struct of_pci_range *range,
if (res->flags & IORESOURCE_IO) {
unsigned long port;
err = pci_register_io_range(range->cpu_addr, range->size);
err = pci_register_io_range(&np->fwnode, range->cpu_addr,
range->size);
if (err)
goto invalid_range;
port = pci_address_to_pio(range->cpu_addr);

3
drivers/pci/pci.c
View File

@ -3455,7 +3455,8 @@ static DEFINE_SPINLOCK(io_range_lock);
* Record the PCI IO range (expressed as CPU physical address + size).
* Return a negative value if an error has occured, zero otherwise
*/
int pci_register_io_range(phys_addr_t addr, resource_size_t size)
int pci_register_io_range(struct fwnode_handle *fwnode, phys_addr_t addr,
resource_size_t size)
{
int err = 0;

3
include/linux/pci.h
View File

@ -1226,7 +1226,8 @@ int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
void *alignf_data);
int pci_register_io_range(phys_addr_t addr, resource_size_t size);
int pci_register_io_range(struct fwnode_handle *fwnode, phys_addr_t addr,
resource_size_t size);
unsigned long pci_address_to_pio(phys_addr_t addr);
phys_addr_t pci_pio_to_address(unsigned long pio);
int pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr);