PCI: Implement devm_pci_remap_cfgspace()
authorLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Wed, 19 Apr 2017 16:48:55 +0000 (17:48 +0100)
committerBjorn Helgaas <bhelgaas@google.com>
Mon, 24 Apr 2017 18:53:13 +0000 (13:53 -0500)
commit490cb6ddb17df5ef5f5eb33c9a34f3033b31c204
tree7c3b684679bae3d890199b330bb18b3c744b7497
parent6524754eff305760d0b31dac468e78057a56f47e
PCI: Implement devm_pci_remap_cfgspace()

The introduction of the pci_remap_cfgspace() interface allows PCI host
controller drivers to map PCI config space through a dedicated kernel
interface. Current PCI host controller drivers use the devm_ioremap_*()
devres interfaces to map PCI configuration space regions so in order to
update them to the new pci_remap_cfgspace() mapping interface a new set of
devres interfaces should be implemented so that PCI host controller drivers
can make use of them.

Introduce two new functions in the PCI kernel layer and Devres
documentation:

- devm_pci_remap_cfgspace()
- devm_pci_remap_cfg_resource()

so that PCI host controller drivers can make use of them to map PCI
configuration space regions.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Documentation/driver-model/devres.txt
drivers/pci/pci.c
include/linux/pci.h