Hi Jacek,
Thanks for the review!
I have to say I found the v4l2-flash-led-class framework quite useful, now
that I refactored a driver for using it. Now we have a user for the
indicator, too. :-)
On Wed, Jun 14, 2017 at 11:15:24PM +0200, Jacek Anaszewski wrote:
> > +static __maybe_unused int as3645a_suspend(struct device *dev)
> > +{
> > + struct i2c_client *client = to_i2c_client(dev);
> > + struct as3645a *flash = i2c_get_clientdata(client);
> > + int rval;
> > +
> > + rval = as3645a_set_control(flash, AS_MODE_EXT_TORCH, false);
> > + dev_dbg(dev, "Suspend %s\n", rval < 0 ? "failed" : "ok");
> > +
> > + return rval;
> > +}
> > +
> > +static __maybe_unused int as3645a_resume(struct device *dev)
> > +{
> > + struct i2c_client *client = to_i2c_client(dev);
> > + struct as3645a *flash = i2c_get_clientdata(client);
> > + int rval;
> > +
> > + rval = as3645a_setup(flash);
> > +
>
> nitpicking: inconsistent coding style - there is no empty line before
> dev_dbg() in the as3645a_suspend().
Added one for as3645a_suspend() --- it should have been there.
>
> > + dev_dbg(dev, "Resume %s\n", rval < 0 ? "fail" : "ok");
> > +
> > + return rval;
> > +}
...
> > +static int as3645a_led_class_setup(struct as3645a *flash)
> > +{
> > + struct led_classdev *fled_cdev = &flash->fled.led_cdev;
> > + struct led_classdev *iled_cdev = &flash->iled_cdev;
> > + struct led_flash_setting *cfg;
> > + int rval;
> > +
> > + iled_cdev->name = "as3645a indicator";
> > + iled_cdev->brightness_set_blocking = as3645a_set_indicator_brightness;
> > + iled_cdev->max_brightness =
> > + flash->cfg.indicator_max_ua / AS_INDICATOR_INTENSITY_STEP;
> > +
> > + rval = led_classdev_register(&flash->client->dev, iled_cdev);
> > + if (rval < 0)
> > + return rval;
> > +
> > + cfg = &flash->fled.brightness;
> > + cfg->min = AS_FLASH_INTENSITY_MIN;
> > + cfg->max = flash->cfg.flash_max_ua;
> > + cfg->step = AS_FLASH_INTENSITY_STEP;
> > + cfg->val = flash->cfg.flash_max_ua;
> > +
> > + cfg = &flash->fled.timeout;
> > + cfg->min = AS_FLASH_TIMEOUT_MIN;
> > + cfg->max = flash->cfg.flash_timeout_us;
> > + cfg->step = AS_FLASH_TIMEOUT_STEP;
> > + cfg->val = flash->cfg.flash_timeout_us;
> > +
> > + flash->fled.ops = &as3645a_led_flash_ops;
> > +
> > + fled_cdev->name = "as3645a flash";
>
> LED class device name should be taken from label DT property,
> or DT node name if the former wasn't defined.
>
> Also LED device naming convention defines colon as a separator
> between name segments.
Right. I'll fix that.
I just realised I'm missing DT binding documentation for this device; I'll
add that, too.
Is the preference to allow freely chosen node names for the LEDs? Now that
there's the label, too, this appears to be somewhat duplicated information.
--
Kind regards,
Sakari Ailus
e-mail: sakari.ailus@xxxxxx XMPP: sailus@xxxxxxxxxxxxxx
