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dm: core: device: add function: dev_get_driver_ops()

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This commit extends the driver model device's API by function:
- dev_get_driver_ops()

And this function returns the device's driver's operations if given:
- dev pointer, is non-NULL
- dev->driver->ops pointer, is non-NULL
in other case the, the NULL pointer is returned.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Przemyslaw Marczak 2015-04-15 13:07:24 +02:00 committed by Simon Glass
parent b7af1a2da7
commit cc73d37b7f
2 changed files with 19 additions and 0 deletions
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8
drivers/core/device.c
View file

@ -499,6 +499,14 @@ ulong dev_get_driver_data(struct udevice *dev)
return dev->driver_data;
}
const void *dev_get_driver_ops(struct udevice *dev)
{
if (!dev || !dev->driver->ops)
return NULL;
return dev->driver->ops;
}
enum uclass_id device_get_uclass_id(struct udevice *dev)
{
return dev->uclass->uc_drv->id;

11
include/dm/device.h
View file

@ -280,6 +280,17 @@ void *dev_get_uclass_priv(struct udevice *dev);
*/
ulong dev_get_driver_data(struct udevice *dev);
/**
* dev_get_driver_ops() - get the device's driver's operations
*
* This checks that dev is not NULL, and returns the pointer to device's
* driver's operations.
*
* @dev: Device to check
* @return void pointer to driver's operations or NULL for NULL-dev or NULL-ops
*/
const void *dev_get_driver_ops(struct udevice *dev);
/*
* device_get_uclass_id() - return the uclass ID of a device
*