[PATCH v3 07/14] media: marvell-ccic: Use v4l2_async_notifier_add_*_subdev
From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: 2021-01-26 05:46:11
Subsystem:
media input infrastructure (v4l/dvb), the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
From: Ezequiel Garcia <redacted> The use of v4l2_async_notifier_add_subdev will be discouraged. Drivers are instead encouraged to use a helper such as v4l2_async_notifier_add_fwnode_remote_subdev. This fixes a misuse of the API, as v4l2_async_notifier_add_subdev should get a kmalloc'ed struct v4l2_async_subdev, removing some boilerplate code while at it. Use the appropriate helper: v4l2_async_notifier_add_i2c_subdev or v4l2_async_notifier_add_fwnode_remote_subdev, which handles the needed setup, instead of open-coding it. Signed-off-by: Ezequiel Garcia <redacted> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Helen Koike <redacted> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> --- drivers/media/platform/marvell-ccic/cafe-driver.c | 14 +++++++++++--- drivers/media/platform/marvell-ccic/mcam-core.c | 10 ---------- drivers/media/platform/marvell-ccic/mcam-core.h | 1 - drivers/media/platform/marvell-ccic/mmp-driver.c | 11 ++++++++--- 4 files changed, 19 insertions(+), 17 deletions(-)
diff --git a/drivers/media/platform/marvell-ccic/cafe-driver.c b/drivers/media/platform/marvell-ccic/cafe-driver.c
index 00f623d62c96..91d65f71be96 100644
--- a/drivers/media/platform/marvell-ccic/cafe-driver.c
+++ b/drivers/media/platform/marvell-ccic/cafe-driver.c@@ -489,6 +489,7 @@ static int cafe_pci_probe(struct pci_dev *pdev, int ret; struct cafe_camera *cam; struct mcam_camera *mcam; + struct v4l2_async_subdev *asd; /* * Start putting together one of our big camera structures.
@@ -546,9 +547,16 @@ static int cafe_pci_probe(struct pci_dev *pdev, if (ret) goto out_pdown; - mcam->asd.match_type = V4L2_ASYNC_MATCH_I2C; - mcam->asd.match.i2c.adapter_id = i2c_adapter_id(cam->i2c_adapter); - mcam->asd.match.i2c.address = ov7670_info.addr; + v4l2_async_notifier_init(&mcam->notifier); + + asd = v4l2_async_notifier_add_i2c_subdev(&mcam->notifier, + i2c_adapter_id(cam->i2c_adapter), + ov7670_info.addr, + sizeof(*asd)); + if (IS_ERR(asd)) { + ret = PTR_ERR(asd); + goto out_smbus_shutdown; + } ret = mccic_register(mcam); if (ret)
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index c012fd2e1d29..153277e4fe80 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c@@ -1866,16 +1866,6 @@ int mccic_register(struct mcam_camera *cam) cam->pix_format = mcam_def_pix_format; cam->mbus_code = mcam_def_mbus_code; - /* - * Register sensor notifier. - */ - v4l2_async_notifier_init(&cam->notifier); - ret = v4l2_async_notifier_add_subdev(&cam->notifier, &cam->asd); - if (ret) { - cam_warn(cam, "failed to add subdev to a notifier"); - goto out; - } - cam->notifier.ops = &mccic_notify_ops; ret = v4l2_async_notifier_register(&cam->v4l2_dev, &cam->notifier); if (ret < 0) {
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.h b/drivers/media/platform/marvell-ccic/mcam-core.h
index b55545822fd2..f324d808d737 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.h
+++ b/drivers/media/platform/marvell-ccic/mcam-core.h@@ -151,7 +151,6 @@ struct mcam_camera { */ struct video_device vdev; struct v4l2_async_notifier notifier; - struct v4l2_async_subdev asd; struct v4l2_subdev *sensor; /* Videobuf2 stuff */
diff --git a/drivers/media/platform/marvell-ccic/mmp-driver.c b/drivers/media/platform/marvell-ccic/mmp-driver.c
index 032fdddbbecc..40d9fc4a731a 100644
--- a/drivers/media/platform/marvell-ccic/mmp-driver.c
+++ b/drivers/media/platform/marvell-ccic/mmp-driver.c@@ -180,6 +180,7 @@ static int mmpcam_probe(struct platform_device *pdev) struct resource *res; struct fwnode_handle *ep; struct mmp_camera_platform_data *pdata; + struct v4l2_async_subdev *asd; int ret; cam = devm_kzalloc(&pdev->dev, sizeof(*cam), GFP_KERNEL);
@@ -238,10 +239,15 @@ static int mmpcam_probe(struct platform_device *pdev) if (!ep) return -ENODEV; - mcam->asd.match_type = V4L2_ASYNC_MATCH_FWNODE; - mcam->asd.match.fwnode = fwnode_graph_get_remote_port_parent(ep); + v4l2_async_notifier_init(&mcam->notifier); + asd = v4l2_async_notifier_add_fwnode_remote_subdev(&mcam->notifier, + ep, sizeof(*asd)); fwnode_handle_put(ep); + if (IS_ERR(asd)) { + ret = PTR_ERR(asd); + goto out; + } /* * Register the device with the core.
@@ -278,7 +284,6 @@ static int mmpcam_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); return 0; out: - fwnode_handle_put(mcam->asd.match.fwnode); mccic_shutdown(mcam); return ret;
--
2.29.2