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authorKishon Vijay Abraham I <kishon@ti.com>2018-04-02 18:59:35 +0530
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2018-05-18 16:40:50 +0100
commitef1433f717a2c63747a519d86965d73ff9bd08b3 (patch)
tree8b9c4ae16132f1695e70742c24b5e9ca0fc31b11 /drivers/pci/endpoint
parentecc57efe9d0d958c8a3a43a4430bf19319e74728 (diff)
PCI: endpoint: Create configfs entry for each pci_epf_device_id table entry
In order to be able to provide correct driver_data for pci_epf device, a separate configfs entry for each pci_epf_device_id table entry in pci_epf_driver is required. Add support to create configfs entry for each pci_epf_device_id table entry here. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Tested-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Diffstat (limited to 'drivers/pci/endpoint')
-rw-r--r--drivers/pci/endpoint/pci-epf-core.c23
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c
index 465b5f058b6d..523a8cab3bfb 100644
--- a/drivers/pci/endpoint/pci-epf-core.c
+++ b/drivers/pci/endpoint/pci-epf-core.c
@@ -15,6 +15,8 @@
#include <linux/pci-epf.h>
#include <linux/pci-ep-cfs.h>
+static DEFINE_MUTEX(pci_epf_mutex);
+
static struct bus_type pci_epf_bus_type;
static const struct device_type pci_epf_type;
@@ -143,7 +145,13 @@ EXPORT_SYMBOL_GPL(pci_epf_alloc_space);
*/
void pci_epf_unregister_driver(struct pci_epf_driver *driver)
{
- pci_ep_cfs_remove_epf_group(driver->group);
+ struct config_group *group;
+
+ mutex_lock(&pci_epf_mutex);
+ list_for_each_entry(group, &driver->epf_group, group_entry)
+ pci_ep_cfs_remove_epf_group(group);
+ list_del(&driver->epf_group);
+ mutex_unlock(&pci_epf_mutex);
driver_unregister(&driver->driver);
}
EXPORT_SYMBOL_GPL(pci_epf_unregister_driver);
@@ -159,6 +167,8 @@ int __pci_epf_register_driver(struct pci_epf_driver *driver,
struct module *owner)
{
int ret;
+ struct config_group *group;
+ const struct pci_epf_device_id *id;
if (!driver->ops)
return -EINVAL;
@@ -173,7 +183,16 @@ int __pci_epf_register_driver(struct pci_epf_driver *driver,
if (ret)
return ret;
- driver->group = pci_ep_cfs_add_epf_group(driver->driver.name);
+ INIT_LIST_HEAD(&driver->epf_group);
+
+ id = driver->id_table;
+ while (id->name[0]) {
+ group = pci_ep_cfs_add_epf_group(id->name);
+ mutex_lock(&pci_epf_mutex);
+ list_add_tail(&group->group_entry, &driver->epf_group);
+ mutex_unlock(&pci_epf_mutex);
+ id++;
+ }
return 0;
}