[PATCH v7 2/3] pwm_backlight: use power sequences
Alex Courbot
acourbot at nvidia.com
Fri Oct 19 20:31:53 EST 2012
On Friday 19 October 2012 17:20:36 Tony Prisk wrote:
> On Fri, 2012-10-19 at 18:06 +0900, Alexandre Courbot wrote:
> > +static void pwm_backlight_on(struct backlight_device *bl)
> > +{
> > + struct pwm_bl_data *pb = dev_get_drvdata(&bl->dev);
> > + int ret;
> > +
> > + if (pb->enabled)
> > + return;
> > +
> > + if (pb->power_on_seq) {
> > + ret = power_seq_run(pb->power_on_seq);
> > + if (ret < 0) {
> > + dev_err(&bl->dev, "cannot run power on
> > sequence\n");
> > + return;
> > + }
> > + } else {
> > + /* legacy framework */
> > + pwm_config(pb->pwm, 0, pb->period);
> > + pwm_disable(pb->pwm);
>
> Is this right? pwm_disable() in the backlight_on function?
Now everybody will notice that I never really tested the legacy interface. >_<
Thanks, this was totally wrong indeed.
Alex.
More information about the devicetree-discuss
mailing list