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From: Jacopo Mondi <jacopo+renesas@jmondi.org>
To: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Jacopo Mondi <jacopo+renesas@jmondi.org>,
	linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org
Subject: [RFC 3/4] media: v4l2-async: Call post_register() subdev op
Date: Thu, 17 Jun 2021 19:16:10 +0200	[thread overview]
Message-ID: <20210617171611.80542-4-jacopo+renesas@jmondi.org> (raw)
In-Reply-To: <20210617171611.80542-1-jacopo+renesas@jmondi.org>

Call the "post_register()" subdev operation on a just registered
subdevice, immediately after having called the 'bound' notifier
operation on the parent.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
---
 drivers/media/v4l2-core/v4l2-async.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index 0836e01e59ca..8656b50ee799 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -293,6 +293,16 @@ static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
 		return ret;
 	}
 
+	if (!(notifier->flags & V4L2_ASYNC_NOTIFIER_SKIP_POST_REGISTER) &&
+	    sd->ops->core && sd->ops->core->post_register) {
+		ret = sd->ops->core->post_register(sd);
+		if (ret) {
+			v4l2_async_notifier_call_unbind(notifier, sd, sd->asd);
+			v4l2_device_unregister_subdev(sd);
+			return ret;
+		}
+	}
+
 	/* Remove from the waiting list */
 	list_del(&asd->list);
 	sd->asd = asd;
-- 
2.31.1


  parent reply	other threads:[~2021-06-17 17:15 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-17 17:16 [RFC 0/4] media: Introduce post_register() subdev operation Jacopo Mondi
2021-06-17 17:16 ` [RFC 1/4] media: v4l2-subdev: Introduce post_register() core op Jacopo Mondi
2021-06-17 17:16 ` [RFC 2/4] media: v4l2-async: Add notifier flags Jacopo Mondi
2021-07-06  7:47   ` Hans Verkuil
2021-06-17 17:16 ` Jacopo Mondi [this message]
2021-06-17 17:16 ` [RFC 4/4] media: i2c: gmsl: Defer camera intialization Jacopo Mondi
2021-06-18 10:21 ` [RFC 0/4] media: Introduce post_register() subdev operation Hans Verkuil
2021-07-05 14:58   ` Jacopo Mondi

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