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Re: camera subdevice support was Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling multiple times

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Moi! :-)

On Sat, Feb 25, 2017 at 10:53:22PM +0100, Pavel Machek wrote:
> Hi!
> 
> > > Ok, I got the camera sensor to work. No subdevices support, so I don't
> > > have focus (etc) working, but that's a start. I also had to remove
> > > video-bus-switch support; but I guess it will be easier to use
> > > video-multiplexer patches... 
> > > 
> > > I'll have patches over weekend.
> > 
> > I briefly looked at what's there --- you do miss the video nodes for the
> > non-sensor sub-devices, and they also don't show up in the media graph,
> > right?
> 
> Yes.
> 
> > I guess they don't end up matching in the async list.
> 
> How should they get to the async list?

The patch you referred to does that. The problem is, it does make the bus
configuration a pointer as well. There should be two patches. That's not a
lot of work to separate them though. But it should be done.

> 
> > I think we need to make the non-sensor sub-device support more generic;
> > it's not just the OMAP 3 ISP that needs it. I think we need to document
> > the property for the flash phandle as well; I can write one, or refresh
> > an existing one that I believe already exists.
> > 
> > How about calling it either simply "flash" or "camera-flash"? Similarly
> > for lens: "lens" or "camera-lens". I have a vague feeling the "camera-"
> > prefix is somewhat redundant, so I'd just go for "flash" or "lens".
> 
> Actually, I'd go for "flash" and "focus-coil". There may be other
> lens properties, such as zoom, mirror movement, lens identification,
> ...

Good point. Still there may be other ways to move the lens than the voice
coil (which sure is cheap), so how about "flash" and "lens-focus"?

-- 
Regards,

Sakari Ailus
e-mail: sakari.ailus@iki.fi	XMPP: sailus@retiisi.org.uk

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[PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-14 23:40 +0100
  [PATCH 4/4] v4l: split lane parsing code Pavel Machek <pavel@ucw.cz> - 2017-02-14 23:40 +0100
  [PATCH 2/4] Core changes for CCP2/CSI1 support. Pavel Machek <pavel@ucw.cz> - 2017-02-14 23:40 +0100
  [PATCH 3/4] smiapp: add CCP2 support Pavel Machek <pavel@ucw.cz> - 2017-02-14 23:40 +0100
  Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-20 11:40 +0100
    Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Sakari Ailus <sakari.ailus@iki.fi> - 2017-02-20 14:20 +0100
      Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Sakari Ailus <sakari.ailus@iki.fi> - 2017-02-20 15:00 +0100
        Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-21 12:10 +0100
          Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Sakari Ailus <sakari.ailus@iki.fi> - 2017-02-21 12:20 +0100
            Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-24 00:00 +0100
            Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-25 01:10 +0100
              Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Sakari Ailus <sakari.ailus@iki.fi> - 2017-02-25 14:50 +0100
                camera subdevice support was Re: [PATCH 1/4] v4l2:  device_register_subdev_nodes: allow calling multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-25 23:00 +0100
                Re: camera subdevice support was Re: [PATCH 1/4] v4l2:  device_register_subdev_nodes: allow calling multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-26 00:10 +0100
                Re: camera subdevice support was Re: [PATCH 1/4] v4l2:  device_register_subdev_nodes: allow calling multiple times Sakari Ailus <sakari.ailus@iki.fi> - 2017-02-26 00:20 +0100
                Re: camera subdevice support was Re: [PATCH 1/4] v4l2:  device_register_subdev_nodes: allow calling multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-26 09:40 +0100
                Re: camera subdevice support was Re: [PATCH 1/4] v4l2:  device_register_subdev_nodes: allow calling multiple times Sakari Ailus <sakari.ailus@iki.fi> - 2017-02-26 22:40 +0100
            Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-25 23:20 +0100
              Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-27 21:10 +0100
              Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Sakari Ailus <sakari.ailus@iki.fi> - 2017-02-27 22:00 +0100
                Re: [PATCH 1/4] v4l2: device_register_subdev_nodes: allow calling  multiple times Pavel Machek <pavel@ucw.cz> - 2017-02-28 10:20 +0100
                [PATCH] omap3isp: Parse CSI1 configuration from the device tree. Pavel Machek <pavel@ucw.cz> - 2017-02-28 12:40 +0100

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