lkml.org 
[lkml]   [2009]   [Dec]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] leds: Add LED class driver for regulator driven LEDs.
    On Wed, Dec 02, 2009 at 09:25:21PM +0100, Antonio Ospite wrote:
    > Mark Brown <broonie@opensource.wolfsonmicro.com> wrote:

    > > There's no need to do this since the regulator API matches consumers
    > > based on struct device as well as name so you can have as many LEDs as
    > > you like all using the same supply name mapping to different regulators.

    > I need some more explanation here, I am currently using the driver with
    > this code:

    > +/* VVIB: Vibrator on A780, A1200, A910, E6, E2 */
    > +static struct regulator_consumer_supply pcap_regulator_VVIB_consumers
    > [] = {
    > + { .dev_name = "leds-regulator", .supply = "vibrator", },

    So you're instantiating the device with .id set to -1 (as your code
    below shows), meaning there's only one leds-regulator in the system and
    there's no need to number them. If you had more than one of them then
    you'd number them and then have something like:

    { .dev_name = "leds-regulator.0", supply = "vled" },
    { .dev_name = "leds-regulator.1", supply = "vled" },

    when setting up the supplies.

    > If I set the .supply value fixed, how can I assign different
    > regulators to different leds? Should I use the address to the platform
    > device (a780_vibrator in this case) for .dev when defining the
    > regulator in the first place?

    There is no need to use the .dev field, that is kept to avoid build
    breakage transitioning to dev_name.


    \
     
     \ /
      Last update: 2009-12-02 21:43    [W:0.022 / U:30.564 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site