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dm: core: Add dev_get_uclass_priv() to access uclass private data

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Add a convenience function to access the private data that a uclass stores
for each of its devices. Convert over most existing uses for consistency
and to provide an example for others.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2015-03-05 12:25:20 -07:00
parent 106cce9604
commit e564f054af
27 changed files with 71 additions and 51 deletions
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8
include/i2c.h
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@ -64,8 +64,8 @@ struct dm_i2c_chip {
* bus can operate at different speeds (measured in Hz, typically 100KHz
* or 400KHz).
*
* To obtain this structure, use bus->uclass_priv where bus is the I2C
* bus udevice.
* To obtain this structure, use dev_get_uclass_priv(bus) where bus is the
* I2C bus udevice.
*
* @speed_hz: Bus speed in hertz (typically 100000)
*/
@ -340,7 +340,7 @@ struct dm_i2c_ops {
* The bus speed value will be updated by the uclass if this function
* does not return an error. This method is optional - if it is not
* provided then the driver can read the speed from
* bus->uclass_priv->speed_hz
* dev_get_uclass_priv(bus)->speed_hz
*
* @bus: Bus to adjust
* @speed: Requested speed in Hz
@ -354,7 +354,7 @@ struct dm_i2c_ops {
* Normally this can be provided by the uclass, but if you want your
* driver to check the bus speed by looking at the hardware, you can
* implement that here. This method is optional. This method would
* normally be expected to return bus->uclass_priv->speed_hz.
* normally be expected to return dev_get_uclass_priv(bus)->speed_hz.
*
* @bus: Bus to check
* @return speed of selected I2C bus in Hz, -ve on error