diff options
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 1ba9d617d24..f6bcf22e6bd 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -1052,9 +1052,11 @@ static __initdata LIST_HEAD(early_platform_driver_list); static __initdata LIST_HEAD(early_platform_device_list); /** - * early_platform_driver_register + * early_platform_driver_register - register early platform driver * @epdrv: early_platform driver structure * @buf: string passed from early_param() + * + * Helper function for early_platform_init() / early_platform_init_buffer() */ int __init early_platform_driver_register(struct early_platform_driver *epdrv, char *buf) @@ -1106,9 +1108,12 @@ int __init early_platform_driver_register(struct early_platform_driver *epdrv, } /** - * early_platform_add_devices - add a numbers of early platform devices + * early_platform_add_devices - adds a number of early platform devices * @devs: array of early platform devices to add * @num: number of early platform devices in array + * + * Used by early architecture code to register early platform devices and + * their platform data. */ void __init early_platform_add_devices(struct platform_device **devs, int num) { @@ -1128,8 +1133,12 @@ void __init early_platform_add_devices(struct platform_device **devs, int num) } /** - * early_platform_driver_register_all + * early_platform_driver_register_all - register early platform drivers * @class_str: string to identify early platform driver class + * + * Used by architecture code to register all early platform drivers + * for a certain class. If omitted then only early platform drivers + * with matching kernel command line class parameters will be registered. */ void __init early_platform_driver_register_all(char *class_str) { @@ -1151,7 +1160,7 @@ void __init early_platform_driver_register_all(char *class_str) } /** - * early_platform_match + * early_platform_match - find early platform device matching driver * @epdrv: early platform driver structure * @id: id to match against */ @@ -1169,7 +1178,7 @@ early_platform_match(struct early_platform_driver *epdrv, int id) } /** - * early_platform_left + * early_platform_left - check if early platform driver has matching devices * @epdrv: early platform driver structure * @id: return true if id or above exists */ @@ -1187,7 +1196,7 @@ static __init int early_platform_left(struct early_platform_driver *epdrv, } /** - * early_platform_driver_probe_id + * early_platform_driver_probe_id - probe drivers matching class_str and id * @class_str: string to identify early platform driver class * @id: id to match against * @nr_probe: number of platform devices to successfully probe before exiting @@ -1257,10 +1266,14 @@ static int __init early_platform_driver_probe_id(char *class_str, } /** - * early_platform_driver_probe + * early_platform_driver_probe - probe a class of registered drivers * @class_str: string to identify early platform driver class * @nr_probe: number of platform devices to successfully probe before exiting * @user_only: only probe user specified early platform devices + * + * Used by architecture code to probe registered early platform drivers + * within a certain class. For probe to happen a registered early platform + * device matching a registered early platform driver is needed. */ int __init early_platform_driver_probe(char *class_str, int nr_probe, |