The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable@xxxxxxxxxxxxxxx>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 7b0454cfd8edb3509619407c3b9f78a6d0dee1a5 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable@xxxxxxxxxxxxxxx>' --in-reply-to '2024012659-opacity-greedy-0493@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: 7b0454cfd8ed ("media: ov13b10: Enable runtime PM before registering async sub-device") 1af2f618acc1 ("media: ov13b10: Support device probe in non-zero ACPI D state") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 7b0454cfd8edb3509619407c3b9f78a6d0dee1a5 Mon Sep 17 00:00:00 2001 From: Bingbu Cao <bingbu.cao@xxxxxxxxx> Date: Wed, 22 Nov 2023 17:46:08 +0800 Subject: [PATCH] media: ov13b10: Enable runtime PM before registering async sub-device As the sensor device maybe accessible right after its async sub-device is registered, such as ipu-bridge will try to power up sensor by sensor's client device's runtime PM from the async notifier callback, if runtime PM is not enabled, it will fail. So runtime PM should be ready before its async sub-device is registered and accessible by others. Fixes: 7ee850546822 ("media: Add sensor driver support for the ov13b10 camera.") Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Bingbu Cao <bingbu.cao@xxxxxxxxx> Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx> diff --git a/drivers/media/i2c/ov13b10.c b/drivers/media/i2c/ov13b10.c index c06411d5ee2b..73c844aa5697 100644 --- a/drivers/media/i2c/ov13b10.c +++ b/drivers/media/i2c/ov13b10.c @@ -1554,24 +1554,27 @@ static int ov13b10_probe(struct i2c_client *client) goto error_handler_free; } - ret = v4l2_async_register_subdev_sensor(&ov13b->sd); - if (ret < 0) - goto error_media_entity; /* * Device is already turned on by i2c-core with ACPI domain PM. * Enable runtime PM and turn off the device. */ - /* 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(&ov13b->sd); + if (ret < 0) + goto error_media_entity_runtime_pm; + return 0; -error_media_entity: +error_media_entity_runtime_pm: + pm_runtime_disable(&client->dev); + if (full_power) + pm_runtime_set_suspended(&client->dev); media_entity_cleanup(&ov13b->sd.entity); error_handler_free: @@ -1594,6 +1597,7 @@ static void ov13b10_remove(struct i2c_client *client) ov13b10_free_controls(ov13b); pm_runtime_disable(&client->dev); + pm_runtime_set_suspended(&client->dev); } static DEFINE_RUNTIME_DEV_PM_OPS(ov13b10_pm_ops, ov13b10_suspend,
