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From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-media@vger.kernel.org
Cc: linux-leds@vger.kernel.org, laurent.pinchart@ideasonboard.com,
	niklas.soderlund@ragnatech.se, hverkuil@xs4all.nl
Subject: [RFC 14/19] omap3isp: Move sub-device link creation to notifier bound callback
Date: Tue, 18 Jul 2017 22:03:56 +0300	[thread overview]
Message-ID: <20170718190401.14797-15-sakari.ailus@linux.intel.com> (raw)
In-Reply-To: <20170718190401.14797-1-sakari.ailus@linux.intel.com>

The external sub-device links may well be created from the bound callback.
Don't postpone creation to the complete callback.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/platform/omap3isp/isp.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index 92245a457d18..ef6ce2b214ce 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -2085,16 +2085,18 @@ static int isp_fwnode_parse(struct device *dev,
 }
 
 static int isp_subdev_notifier_bound(struct v4l2_async_notifier *async,
-				     struct v4l2_subdev *subdev,
+				     struct v4l2_subdev *sd,
 				     struct v4l2_async_subdev *asd)
 {
+	struct isp_device *isp = container_of(async, struct isp_device,
+					      notifier);
 	struct isp_async_subdev *isd =
 		container_of(asd, struct isp_async_subdev, asd);
 
-	isd->sd = subdev;
-	isd->sd->host_priv = &isd->bus;
+	isd->sd = sd;
+	sd->host_priv = &isd->bus;
 
-	return 0;
+	return isp_link_entity(isp, &sd->entity, isd->bus.interface);
 }
 
 static int isp_subdev_notifier_complete(struct v4l2_async_notifier *async)
@@ -2110,16 +2112,6 @@ static int isp_subdev_notifier_complete(struct v4l2_async_notifier *async)
 	if (ret)
 		return ret;
 
-	list_for_each_entry(sd, &v4l2_dev->subdevs, list) {
-		/* Only try to link entities whose interface was set on bound */
-		if (sd->host_priv) {
-			bus = (struct isp_bus_cfg *)sd->host_priv;
-			ret = isp_link_entity(isp, &sd->entity, bus->interface);
-			if (ret < 0)
-				return ret;
-		}
-	}
-
 	ret = v4l2_device_register_subdev_nodes(&isp->v4l2_dev);
 	if (ret < 0)
 		return ret;
-- 
2.11.0

  parent reply	other threads:[~2017-07-18 19:04 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-18 19:03 [RFC 00/19] Async sub-notifiers and how to use them Sakari Ailus
2017-07-18 19:03 ` [RFC 01/19] device property: Introduce fwnode_property_get_reference_args Sakari Ailus
2017-07-18 19:03 ` [RFC 02/19] v4l: async: add subnotifier registration for subdevices Sakari Ailus
2017-07-18 21:28   ` Niklas Söderlund
2017-07-18 19:03 ` [RFC 03/19] dt: bindings: Add a binding for flash devices associated to a sensor Sakari Ailus
2017-07-18 19:03 ` [RFC 04/19] dt: bindings: Add lens-focus binding for image sensors Sakari Ailus
2017-07-28  8:53   ` Hans Verkuil
2017-07-28 12:45     ` Pavel Machek
2017-08-15 11:24     ` Sakari Ailus
2017-07-18 19:03 ` [RFC 05/19] leds: as3645a: Add LED flash class driver Sakari Ailus
2017-07-19 20:17   ` Jacek Anaszewski
2017-07-19 21:21     ` Sakari Ailus
2017-07-18 19:03 ` [RFC 06/19] leds: as3645a: Separate flash and indicator LED sub-devices Sakari Ailus
2017-07-18 19:03 ` [RFC 07/19] v4l: fwnode: Support generic parsing of graph endpoints in V4L2 Sakari Ailus
2017-07-18 19:03 ` [RFC 08/19] arm: dts: omap3: N9/N950: Add AS3645A camera flash Sakari Ailus
2017-07-18 19:16   ` Sakari Ailus
2017-07-22  9:40   ` Pavel Machek
2017-07-18 19:03 ` [RFC 09/19] v4l2-fwnode: Add conveniences function for parsing generic references Sakari Ailus
2017-07-18 19:03 ` [RFC 10/19] v4l2-fwnode: Add convenience function for parsing common external refs Sakari Ailus
2017-07-18 19:03 ` [RFC 11/19] v4l2-async: Register sub-devices before calling bound callback Sakari Ailus
2017-07-19 11:24   ` Hans Verkuil
2017-07-20 16:09     ` Sakari Ailus
2017-07-20 16:23       ` Hans Verkuil
2017-07-20 19:23         ` Sakari Ailus
2017-07-21  7:14           ` Hans Verkuil
2017-07-20 23:53         ` Kieran Bingham
2017-07-18 19:03 ` [RFC 12/19] v4l2-subdev: Support registering V4L2 sub-device nodes one by one Sakari Ailus
2017-07-18 19:03 ` [RFC 13/19] v4l2-device: Register sub-device nodes at sub-device registration time Sakari Ailus
2017-07-18 19:03 ` Sakari Ailus [this message]
2017-07-18 19:03 ` [RFC 15/19] omap3isp: Initialise "crashed" media entity enum in probe Sakari Ailus
2017-07-18 19:03 ` [RFC 16/19] omap3isp: Move media device registration to probe Sakari Ailus
2017-07-18 19:03 ` [RFC 17/19] omap3isp: Drop the async notifier callback Sakari Ailus
2017-07-18 19:04 ` [RFC 18/19] v4l2-fwnode: Add abstracted sub-device notifiers Sakari Ailus
2017-07-18 21:19   ` Niklas Söderlund
2017-07-19 22:20     ` Sakari Ailus
2017-07-19 22:33     ` [RFC 1/1] v4l2-subdev: Add a function to set sub-device notifier callbacks Sakari Ailus
2017-07-26 17:48       ` Mauro Carvalho Chehab
2017-07-18 19:04 ` [RFC 19/19] smiapp: Add support for flash and lens devices Sakari Ailus
2017-07-19 11:42 ` [RFC 00/19] Async sub-notifiers and how to use them Hans Verkuil
2017-07-20 16:14   ` Sakari Ailus
2017-07-21  6:57     ` Niklas Söderlund
2017-08-04 18:25       ` Sakari Ailus
2017-08-23  9:09         ` Hans Verkuil
2017-08-23 11:34           ` Pavel Machek
2017-08-23 12:02             ` Hans Verkuil
2017-08-23 12:29           ` Laurent Pinchart
2017-08-23 15:40             ` Hans Verkuil
2017-08-23 12:59           ` Niklas Söderlund
2017-08-23 13:32             ` Laurent Pinchart
2017-08-23 15:23               ` Hans Verkuil

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