Re: [PATCH 12/19] twl4030: mfd_cell is now implicitly available to drivers

On Wed, Feb 02, 2011 at 11:03:26PM -0800, Andres Salomon wrote:

Dmitry Torokhov [off-list ref] wrote:

quoted

Then they are doing it incorrectly. One possible way is to have parent
device carry relevant data in its drvdata and have children get it
from there.

I believe some drivers are even using the parent device already.  See
drivers/leds/leds-mc13783.c, for example, whose parent device drvdata
is used to pass around a struct mc13783 to its children.  Sounds
like a possibility, will need to look into it further.

That's the current best practice approach.