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[73.202.231.77]) by smtp.googlemail.com with ESMTPSA id 30sm31296349pjk.17.2019.08.05.16.35.27 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 05 Aug 2019 16:35:28 -0700 (PDT) From: Steve Longerbeam To: linux-media@vger.kernel.org Cc: Steve Longerbeam , Philipp Zabel , Mauro Carvalho Chehab , linux-kernel@vger.kernel.org (open list) Subject: [PATCH 12/22] media: video-mux: Create media links in bound notifier Date: Mon, 5 Aug 2019 16:34:55 -0700 Message-Id: <20190805233505.21167-13-slongerbeam@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190805233505.21167-1-slongerbeam@gmail.com> References: <20190805233505.21167-1-slongerbeam@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Implement a notifier bound op to register media links from the remote sub-device's source pads to all of the video-mux sink pads. Signed-off-by: Steve Longerbeam --- drivers/media/platform/video-mux.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/media/platform/video-mux.c b/drivers/media/platform/video-mux.c index ca1cef783646..de5b0698fc1d 100644 --- a/drivers/media/platform/video-mux.c +++ b/drivers/media/platform/video-mux.c @@ -36,6 +36,12 @@ static const struct v4l2_mbus_framefmt video_mux_format_mbus_default = { .field = V4L2_FIELD_NONE, }; +static inline struct video_mux * +notifier_to_video_mux(struct v4l2_async_notifier *n) +{ + return container_of(n, struct video_mux, notifier); +} + static inline struct video_mux *v4l2_subdev_to_video_mux(struct v4l2_subdev *sd) { return container_of(sd, struct video_mux, subdev); @@ -343,6 +349,22 @@ static int video_mux_parse_endpoint(struct device *dev, return fwnode_device_is_available(asd->match.fwnode) ? 0 : -ENOTCONN; } +static int video_mux_notify_bound(struct v4l2_async_notifier *notifier, + struct v4l2_subdev *sd, + struct v4l2_async_subdev *asd) +{ + struct video_mux *vmux = notifier_to_video_mux(notifier); + + return media_create_fwnode_links(&vmux->subdev.entity, + dev_fwnode(vmux->subdev.dev), + &sd->entity, + dev_fwnode(sd->dev), 0); +} + +static const struct v4l2_async_notifier_operations video_mux_notify_ops = { + .bound = video_mux_notify_bound, +}; + static int video_mux_async_register(struct video_mux *vmux, unsigned int num_input_pads) { @@ -357,6 +379,8 @@ static int video_mux_async_register(struct video_mux *vmux, v4l2_async_notifier_init(&vmux->notifier); + vmux->notifier.ops = &video_mux_notify_ops; + ret = v4l2_async_register_fwnode_subdev( &vmux->subdev, &vmux->notifier, sizeof(struct v4l2_async_subdev), -- 2.17.1