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From: Sylwester Nawrocki <s.nawrocki@samsung.com>
To: Sakari Ailus <sakari.ailus@iki.fi>
Cc: Hans Verkuil <hverkuil@xs4all.nl>,
	Mauro Carvalho Chehab <mchehab@s-opensource.com>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	linux-media@vger.kernel.org, niklas.soderlund@ragnatech.se,
	maxime.ripard@free-electrons.com,
	laurent.pinchart@ideasonboard.com, pavel@ucw.cz, sre@kernel.org
Subject: Re: [PATCH v15 01/32] v4l: async: Remove re-probing support
Date: Mon, 09 Oct 2017 18:44:52 +0200	[thread overview]
Message-ID: <d24f3e73-0eb5-f523-45a2-6d8b037b3a4d@samsung.com> (raw)
In-Reply-To: <20171009141823.zu6m6ir2z7id7px3@valkosipuli.retiisi.org.uk>

Hi Sakari,

On 10/09/2017 04:18 PM, Sakari Ailus wrote:
> Sure, how about this at the end of the current commit message:
> 
> If there is a need to support removing the clock provider in the future,
> this should be implemented in the clock framework instead, not in V4L2.

I find it a little bit misleading, there is already support for removing
the clock provider, only any clock references for consumers became then
stale.  Perhaps:

"If there is a need to support the clock provider unregister/register 
cycle while keeping the clock references in the consumers in the future, 
this should be implemented in the clock framework instead, not in V4L2."

? That said, I doubt this issue is going to be entirely solved solely 
in the clock framework, as it is a more general problem of resource 
dependencies.  It could be related to other resources, like regulator
or GPIO.  It has been discussed for a long time now and it will likely 
take time until a general solution is available.

--
Thanks, 
Sylwester

  parent reply	other threads:[~2017-10-09 16:45 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-04 21:50 [PATCH v15 00/32] Unified fwnode endpoint parser, async sub-device notifier support, N9 flash DTS Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 01/32] v4l: async: Remove re-probing support Sakari Ailus
2017-10-08 21:50   ` Sebastian Reichel
2017-10-09 11:22   ` Mauro Carvalho Chehab
2017-10-09 14:06     ` Sakari Ailus
2017-10-09 14:08       ` Hans Verkuil
2017-10-09 14:18         ` Sakari Ailus
2017-10-09 14:20           ` Hans Verkuil
2017-10-09 15:27             ` Mauro Carvalho Chehab
     [not found]           ` <CGME20171009164457epcas1p3c5e134e4bb5d85498fe8d4f00332f2fc@epcas1p3.samsung.com>
2017-10-09 16:44             ` Sylwester Nawrocki [this message]
2017-10-09 19:18               ` Laurent Pinchart
2017-10-10 12:18               ` Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 02/32] v4l: async: Don't set sd->dev NULL in v4l2_async_cleanup Sakari Ailus
2017-10-08 21:50   ` Sebastian Reichel
2017-10-09 11:21   ` Hans Verkuil
2017-10-04 21:50 ` [PATCH v15 03/32] v4l: async: fix unbind error in v4l2_async_notifier_unregister() Sakari Ailus
2017-10-08 21:50   ` Sebastian Reichel
2017-10-09 11:23   ` Hans Verkuil
2017-10-04 21:50 ` [PATCH v15 04/32] v4l: async: Fix notifier complete callback error handling Sakari Ailus
2017-10-09 11:45   ` Hans Verkuil
2017-10-10 12:57     ` Sakari Ailus
2017-10-10 13:18       ` Hans Verkuil
2017-10-10 14:21         ` Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 05/32] v4l: async: Correctly serialise async sub-device unregistration Sakari Ailus
2017-10-08 21:52   ` Sebastian Reichel
2017-10-09 11:45   ` Hans Verkuil
2017-10-04 21:50 ` [PATCH v15 06/32] v4l: async: Use more intuitive names for internal functions Sakari Ailus
2017-10-08 21:53   ` Sebastian Reichel
2017-10-04 21:50 ` [PATCH v15 07/32] v4l: async: Add V4L2 async documentation to the documentation build Sakari Ailus
2017-10-08 21:54   ` Sebastian Reichel
2017-10-09 11:31   ` Mauro Carvalho Chehab
2017-10-04 21:50 ` [PATCH v15 08/32] v4l: fwnode: Support generic parsing of graph endpoints in a device Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 09/32] omap3isp: Use generic parser for parsing fwnode endpoints Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 10/32] rcar-vin: " Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 11/32] omap3isp: Fix check for our own sub-devices Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 12/32] omap3isp: Print the name of the entity where no source pads could be found Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 13/32] v4l: async: Move async subdev notifier operations to a separate structure Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 14/32] v4l: async: Introduce helpers for calling async ops callbacks Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 15/32] v4l: async: Register sub-devices before calling bound callback Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 16/32] v4l: async: Allow async notifier register call succeed with no subdevs Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 17/32] v4l: async: Prepare for async sub-device notifiers Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 18/32] v4l: async: Allow binding notifiers to sub-devices Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 19/32] v4l: async: Ensure only unique fwnodes are registered to notifiers Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 20/32] dt: bindings: Add a binding for flash LED devices associated to a sensor Sakari Ailus
     [not found]   ` <20171004215051.13385-21-sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-10-13 13:41     ` Rob Herring
2017-10-13 13:41       ` Rob Herring
2017-10-04 21:50 ` [PATCH v15 21/32] dt: bindings: Add lens-focus binding for image sensors Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 22/32] v4l: fwnode: Move KernelDoc documentation to the header Sakari Ailus
2017-10-05 12:03   ` [PATCH v15.1 " Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 23/32] v4l: fwnode: Add a helper function for parsing generic references Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 24/32] v4l: fwnode: Add a helper function to obtain device / integer references Sakari Ailus
2017-10-18 13:56   ` [PATCH v15.1 " Sakari Ailus
2017-10-18 15:32     ` Sakari Ailus
2017-10-19  6:52       ` Hans Verkuil
2017-10-20 11:35         ` Sakari Ailus
2017-10-24 20:32         ` [PATCH v15.2 " Sakari Ailus
2017-10-24 20:36           ` Sakari Ailus
2017-10-25  7:28           ` Hans Verkuil
2017-10-04 21:50 ` [PATCH v15 25/32] v4l: fwnode: Add convenience function for parsing common external refs Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 26/32] v4l: fwnode: Add a convenience function for registering sensors Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 27/32] dt: bindings: smiapp: Document lens-focus and flash-leds properties Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 28/32] smiapp: Add support for flash and lens devices Sakari Ailus
2017-10-06 11:21   ` Pavel Machek
2017-10-04 21:50 ` [PATCH v15 29/32] et8ek8: " Sakari Ailus
2017-10-06 11:21   ` Pavel Machek
2017-10-04 21:50 ` [PATCH v15 30/32] ov5670: " Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 31/32] ov13858: " Sakari Ailus
2017-10-04 21:50 ` [PATCH v15 32/32] arm: dts: omap3: N9/N950: Add flash references to the camera Sakari Ailus
2017-10-05  6:11 ` [PATCH v15 00/32] Unified fwnode endpoint parser, async sub-device notifier support, N9 flash DTS Sakari Ailus

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