diff options
Diffstat (limited to 'Documentation/driver-api/driver-model/platform.rst')
| -rw-r--r-- | Documentation/driver-api/driver-model/platform.rst | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/Documentation/driver-api/driver-model/platform.rst b/Documentation/driver-api/driver-model/platform.rst index 334dd4071ae4..cf5ff48d3115 100644 --- a/Documentation/driver-api/driver-model/platform.rst +++ b/Documentation/driver-api/driver-model/platform.rst @@ -4,7 +4,7 @@ Platform Devices and Drivers See <linux/platform_device.h> for the driver model interface to the platform bus: platform_device, and platform_driver. This pseudo-bus -is used to connect devices on busses with minimal infrastructure, +is used to connect devices on buses with minimal infrastructure, like those used to integrate peripherals on many system-on-chip processors, or some "legacy" PC interconnects; as opposed to large formally specified ones like PCI or USB. @@ -41,13 +41,14 @@ and shutdown notifications using the standard conventions:: struct platform_driver { int (*probe)(struct platform_device *); - int (*remove)(struct platform_device *); + void (*remove)(struct platform_device *); void (*shutdown)(struct platform_device *); int (*suspend)(struct platform_device *, pm_message_t state); - int (*suspend_late)(struct platform_device *, pm_message_t state); - int (*resume_early)(struct platform_device *); int (*resume)(struct platform_device *); struct device_driver driver; + const struct platform_device_id *id_table; + bool prevent_deferred_probe; + bool driver_managed_dma; }; Note that probe() should in general verify that the specified device hardware @@ -108,7 +109,7 @@ field to hold additional information. Embedded systems frequently need one or more clocks for platform devices, which are normally kept off until they're actively needed (to save power). -System setup also associates those clocks with the device, so that that +System setup also associates those clocks with the device, so that calls to clk_get(&pdev->dev, clock_name) return them as needed. |