linux-kernel - Re: [PATCH RFC] [media] adv7180.c: convert to v4l2 control framework

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Date:	Wed, 11 Jul 2012 16:19:02 +0200
From:	Federico Vaga <federico.vaga@...il.com>
To:	Hans Verkuil <hverkuil@...all.nl>
Cc:	Mauro Carvalho Chehab <mchehab@...radead.org>,
	Giancarlo Asnaghi <giancarlo.asnaghi@...com>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC] [media] adv7180.c: convert to v4l2 control framework

> > > @@ -445,9 +402,9 @@ static const struct v4l2_subdev_video_ops
> > > adv7180_video_ops = {> 
> > >  static const struct v4l2_subdev_core_ops adv7180_core_ops = {
> > >  
> > >   .g_chip_ident = adv7180_g_chip_ident,
> > >   .s_std = adv7180_s_std,
> > > 
> > > - .queryctrl = adv7180_queryctrl,
> > > - .g_ctrl = adv7180_g_ctrl,
> > > - .s_ctrl = adv7180_s_ctrl,
> > > + .queryctrl = v4l2_subdev_queryctrl,
> > > + .g_ctrl = v4l2_subdev_g_ctrl,
> > > + .s_ctrl = v4l2_subdev_s_ctrl,
> > 
> > I'm not sure to undestand this point. I "grepped" for the adv7180
> > and it seem that I'm the only user of the adv7180 (sta2x11 VIP
> > driver). In the VIP driver I don't use the control framework (there
> > aren't controls), so I think these lines must be there. Am I wrong?
> 
> Correct. But once sta2x11 is converted to using the control framework,
> then these lines can be dropped since no one else is using this
> subdevice driver.

What do you suggest? I re-submit this patch and when sta2x11 is fixed a 
I submit a new patch to remove these lines; or wait the full conversion 
of the sta2x11 driver and submit both patch?

-- 
Federico Vaga
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