lkml.org 
[lkml]   [2011]   [Dec]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRe: [PATCH 4/4] ASoC: OMAP: ams-delta: drop .set_bias_level callback
    Date
    On Monday 26 of December 2011 at 12:03:49, Mark Brown wrote:
    > On Sat, Dec 24, 2011 at 12:12:24AM +0100, Janusz Krzysztofik wrote:
    >
    > > +struct regulator_consumer_data {
    > > + struct mutex lock;
    > > + struct regulator *regulator;
    > > + bool enabled;
    > > +};
    > > +
    > > +static int regulator_toggle(struct regulator_consumer_data *consumer,
    > > + bool enable)
    > > +{
    > > + int err = 0;
    > > +
    > > + if (!consumer->regulator)
    > > + return -ENODEV;
    > > +
    > > + mutex_lock(&consumer->lock);
    > > + if (IS_ERR(consumer->regulator)) {
    > > + err = PTR_ERR(consumer->regulator);
    > > + } else if (enable) {
    > > + if (!consumer->enabled) {
    > > + err = regulator_enable(consumer->regulator);
    > > + consumer->enabled = true;
    > > + }
    > > + } else {
    > > + if (consumer->enabled) {
    > > + err = regulator_disable(consumer->regulator);
    > > + consumer->enabled = false;
    > > + }
    > > + }
    > > + mutex_unlock(&consumer->lock);
    > > +
    > > + return err;
    > > +}
    > > +
    >
    > Why's this code not been dropped and what is it for?

    It is, and will be, used by another regulator consumer, the modem. The
    device is controlled by the generic serial8250 driver, extended with a
    custom .pm hook which enables/disables the regulator. The above code,
    temporarily shared with the ASoC device before updated, is now just
    moved down the board file where the modem related bits are located (see
    patch 3/4).

    Any hints like that for the codec driver?

    Thanks,
    Janusz


    \
     
     \ /
      Last update: 2011-12-26 13:33    [W:0.023 / U:32.080 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site