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From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-media@vger.kernel.org
Cc: laurent.pinchart@ideasonboard.com,
	Tianshu Qiu <tian.shu.qiu@intel.com>,
	Bingbu Cao <bingbu.cao@intel.com>,
	Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
	Jacopo Mondi <jacopo+renesas@jmondi.org>,
	Rui Miguel Silva <rmfrfs@gmail.com>,
	Martin Kepplinger <martink@posteo.de>
Subject: [PATCH v2 07/12] media: ov2740: Enable runtime PM before registering the async subdev
Date: Mon, 18 Sep 2023 15:51:33 +0300	[thread overview]
Message-ID: <20230918125138.90002-8-sakari.ailus@linux.intel.com> (raw)
In-Reply-To: <20230918125138.90002-1-sakari.ailus@linux.intel.com>

Enable runtime PM before registering the async subdev as the driver UAPI
may become accessible immediately after the registration. Runtime PM needs
to be enabled by that time.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/i2c/ov2740.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/media/i2c/ov2740.c b/drivers/media/i2c/ov2740.c
index 41d4f85470fd..319dc00e47b4 100644
--- a/drivers/media/i2c/ov2740.c
+++ b/drivers/media/i2c/ov2740.c
@@ -1172,6 +1172,12 @@ static int ov2740_probe(struct i2c_client *client)
 		goto probe_error_v4l2_ctrl_handler_free;
 	}
 
+	/* Set the device's state to active if it's in D0 state. */
+	if (full_power)
+		pm_runtime_set_active(&client->dev);
+	pm_runtime_enable(&client->dev);
+	pm_runtime_idle(&client->dev);
+
 	ret = v4l2_async_register_subdev_sensor(&ov2740->sd);
 	if (ret < 0) {
 		dev_err_probe(dev, ret, "failed to register V4L2 subdev\n");
@@ -1182,16 +1188,12 @@ static int ov2740_probe(struct i2c_client *client)
 	if (ret)
 		dev_warn(&client->dev, "register nvmem failed, ret %d\n", ret);
 
-	/* Set the device's state to active if it's in D0 state. */
-	if (full_power)
-		pm_runtime_set_active(&client->dev);
-	pm_runtime_enable(&client->dev);
-	pm_runtime_idle(&client->dev);
-
 	return 0;
 
 probe_error_media_entity_cleanup:
 	media_entity_cleanup(&ov2740->sd.entity);
+	pm_runtime_disable(&client->dev);
+	pm_runtime_set_suspended(&client->dev);
 
 probe_error_v4l2_ctrl_handler_free:
 	v4l2_ctrl_handler_free(ov2740->sd.ctrl_handler);
-- 
2.39.2


  parent reply	other threads:[~2023-09-18 12:53 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-18 12:51 [PATCH v2 00/12] Small fixes and cleanups (ov2740 and ccs) Sakari Ailus
2023-09-18 12:51 ` [PATCH v2 01/12] media: Documentation: Align numbered list, make it a proper ReST Sakari Ailus
2023-09-18 12:51 ` [PATCH v2 02/12] media: ccs: Fix driver quirk struct documentation Sakari Ailus
2023-09-18 12:51 ` [PATCH v2 03/12] media: ccs: Correctly initialise try compose rectangle Sakari Ailus
2023-09-18 12:51 ` [PATCH v2 04/12] media: ccs: Correct error handling in ccs_register_subdev Sakari Ailus
2023-09-18 12:51 ` [PATCH v2 05/12] media: ccs: Switch to init_cfg Sakari Ailus
2023-09-18 13:53   ` Laurent Pinchart
2023-09-18 12:51 ` [PATCH v2 06/12] media: ccs: Use sub-device active state Sakari Ailus
2023-09-18 13:59   ` Laurent Pinchart
2023-09-19 10:29     ` Sakari Ailus
2023-09-19 13:42       ` Laurent Pinchart
2023-09-18 12:51 ` Sakari Ailus [this message]
2023-09-18 13:27   ` [PATCH v2 07/12] media: ov2740: Enable runtime PM before registering the async subdev Laurent Pinchart
2023-09-18 12:51 ` [PATCH v2 08/12] media: ov2740: Use sub-device active state Sakari Ailus
2023-09-18 12:51 ` [PATCH v2 09/12] media: ov2740: Return -EPROBE_DEFER if no endpoint is found Sakari Ailus
2023-09-18 13:24   ` Laurent Pinchart
2023-09-19 10:11     ` Sakari Ailus
2023-09-18 12:51 ` [PATCH v2 10/12] media: v4l: subdev: Clear frame descriptor before get_frame_desc Sakari Ailus
2023-09-18 13:30   ` Laurent Pinchart
2023-09-19  8:04   ` Tomi Valkeinen
2023-09-18 12:51 ` [PATCH v2 11/12] media: v4l: subdev: Print debug information on frame descriptor Sakari Ailus
2023-09-18 13:39   ` Laurent Pinchart
2023-09-19  8:19     ` Tomi Valkeinen
2023-09-19 10:21       ` Sakari Ailus
2023-09-18 12:51 ` [PATCH v2 12/12] media: mc: Check pad flag validity Sakari Ailus
2023-09-18 13:48   ` Laurent Pinchart
2023-09-19 10:24     ` Sakari Ailus
2023-09-19 10:37       ` Laurent Pinchart

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