summaryrefslogtreecommitdiff
path: root/drivers/of/platform.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/of/platform.c')
-rw-r--r--drivers/of/platform.c67
1 files changed, 64 insertions, 3 deletions
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 9d3d932bcb6f..712dfd866df0 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -20,6 +20,54 @@
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+
+static int platform_driver_probe_shim(struct platform_device *pdev)
+{
+ struct platform_driver *pdrv;
+ struct of_platform_driver *ofpdrv;
+ const struct of_device_id *match;
+
+ pdrv = container_of(pdev->dev.driver, struct platform_driver, driver);
+ ofpdrv = container_of(pdrv, struct of_platform_driver, platform_driver);
+ match = of_match_device(pdev->dev.driver->of_match_table, &pdev->dev);
+ return ofpdrv->probe(pdev, match);
+}
+
+static void platform_driver_shutdown_shim(struct platform_device *pdev)
+{
+ struct platform_driver *pdrv;
+ struct of_platform_driver *ofpdrv;
+
+ pdrv = container_of(pdev->dev.driver, struct platform_driver, driver);
+ ofpdrv = container_of(pdrv, struct of_platform_driver, platform_driver);
+ ofpdrv->shutdown(pdev);
+}
+
+/**
+ * of_register_platform_driver
+ */
+int of_register_platform_driver(struct of_platform_driver *drv)
+{
+ /* setup of_platform_driver to platform_driver adaptors */
+ drv->platform_driver.driver = drv->driver;
+ if (drv->probe)
+ drv->platform_driver.probe = platform_driver_probe_shim;
+ drv->platform_driver.remove = drv->remove;
+ if (drv->shutdown)
+ drv->platform_driver.shutdown = platform_driver_shutdown_shim;
+ drv->platform_driver.suspend = drv->suspend;
+ drv->platform_driver.resume = drv->resume;
+
+ return platform_driver_register(&drv->platform_driver);
+}
+EXPORT_SYMBOL(of_register_platform_driver);
+
+void of_unregister_platform_driver(struct of_platform_driver *drv)
+{
+ platform_driver_unregister(&drv->platform_driver);
+}
+EXPORT_SYMBOL(of_unregister_platform_driver);
#if defined(CONFIG_PPC_DCR)
#include <asm/dcr.h>
@@ -392,16 +440,29 @@ int of_bus_type_init(struct bus_type *bus, const char *name)
int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus)
{
- drv->driver.bus = bus;
+ /*
+ * Temporary: of_platform_bus used to be distinct from the platform
+ * bus. It isn't anymore, and so drivers on the platform bus need
+ * to be registered in a special way.
+ *
+ * After all of_platform_bus_type drivers are converted to
+ * platform_drivers, this exception can be removed.
+ */
+ if (bus == &platform_bus_type)
+ return of_register_platform_driver(drv);
/* register with core */
+ drv->driver.bus = bus;
return driver_register(&drv->driver);
}
EXPORT_SYMBOL(of_register_driver);
void of_unregister_driver(struct of_platform_driver *drv)
{
- driver_unregister(&drv->driver);
+ if (drv->driver.bus == &platform_bus_type)
+ of_unregister_platform_driver(drv);
+ else
+ driver_unregister(&drv->driver);
}
EXPORT_SYMBOL(of_unregister_driver);
@@ -548,7 +609,7 @@ struct of_device *of_platform_device_create(struct device_node *np,
dev->archdata.dma_mask = 0xffffffffUL;
#endif
dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
- dev->dev.bus = &of_platform_bus_type;
+ dev->dev.bus = &platform_bus_type;
/* We do not fill the DMA ops for platform devices by default.
* This is currently the responsibility of the platform code