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openwrt/target/linux/bcm27xx/patches-6.6/950-0920-media-ov64a40-Do-not-match-on-endpoint.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

138 lines
4.1 KiB
Diff

From a3e618d12ea798cf086d6ae2d7139fc32b5016b9 Mon Sep 17 00:00:00 2001
From: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Date: Thu, 29 Feb 2024 09:35:16 +0100
Subject: [PATCH 0920/1085] media: ov64a40: Do not match on endpoint
Before commit 1029939b3782 ("media: v4l: async: Simplify async
sub-device fwnode matching") sensor drivers were encouraged on matching
on endpoints, to increase the accuracy of matching logic in v4l2-async.
After the framework changes in v6.6 in which endpoint matching has
been deprecated, sensor drivers are not supposed to initialized
sd->fwnode.
Drop it in ov64a40 driver and modify the error paths accordingly.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
---
drivers/media/i2c/ov64a40.c | 40 +++++++++++++++----------------------
1 file changed, 16 insertions(+), 24 deletions(-)
--- a/drivers/media/i2c/ov64a40.c
+++ b/drivers/media/i2c/ov64a40.c
@@ -3457,8 +3457,8 @@ static int ov64a40_parse_dt(struct ov64a
.bus_type = V4L2_MBUS_CSI2_DPHY
};
struct fwnode_handle *endpoint;
- int ret = -EINVAL;
unsigned int i;
+ int ret;
endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(ov64a40->dev),
NULL);
@@ -3467,27 +3467,31 @@ static int ov64a40_parse_dt(struct ov64a
return -EINVAL;
}
- if (v4l2_fwnode_endpoint_alloc_parse(endpoint, &v4l2_fwnode)) {
+ ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &v4l2_fwnode);
+ fwnode_handle_put(endpoint);
+ if (ret) {
dev_err(ov64a40->dev, "Failed to parse endpoint\n");
- goto error_put_fwnode;
-
+ return ret;
}
if (v4l2_fwnode.bus.mipi_csi2.num_data_lanes != 2) {
dev_err(ov64a40->dev, "Unsupported number of data lanes: %u\n",
v4l2_fwnode.bus.mipi_csi2.num_data_lanes);
- goto error_free_fwnode;
+ v4l2_fwnode_endpoint_free(&v4l2_fwnode);
+ return -EINVAL;
}
if (!v4l2_fwnode.nr_of_link_frequencies) {
dev_warn(ov64a40->dev, "no link frequencies defined\n");
- goto error_free_fwnode;
+ v4l2_fwnode_endpoint_free(&v4l2_fwnode);
+ return -EINVAL;
}
if (v4l2_fwnode.nr_of_link_frequencies > 2) {
dev_warn(ov64a40->dev,
"Unsupported number of link frequencies\n");
- goto error_free_fwnode;
+ v4l2_fwnode_endpoint_free(&v4l2_fwnode);
+ return -EINVAL;
}
ov64a40->link_frequencies =
@@ -3495,8 +3499,8 @@ static int ov64a40_parse_dt(struct ov64a
sizeof(v4l2_fwnode.link_frequencies[0]),
GFP_KERNEL);
if (!ov64a40->link_frequencies) {
- ret = -ENOMEM;
- goto error_free_fwnode;
+ v4l2_fwnode_endpoint_free(&v4l2_fwnode);
+ return -ENOMEM;
}
ov64a40->num_link_frequencies = v4l2_fwnode.nr_of_link_frequencies;
@@ -3506,7 +3510,8 @@ static int ov64a40_parse_dt(struct ov64a
dev_err(ov64a40->dev,
"Unsupported link frequency %lld\n",
v4l2_fwnode.link_frequencies[i]);
- goto error_free_fwnode;
+ v4l2_fwnode_endpoint_free(&v4l2_fwnode);
+ return -EINVAL;
}
ov64a40->link_frequencies[i] = v4l2_fwnode.link_frequencies[i];
@@ -3514,16 +3519,7 @@ static int ov64a40_parse_dt(struct ov64a
v4l2_fwnode_endpoint_free(&v4l2_fwnode);
- /* Register the subdev on the endpoint, so don't put it yet. */
- ov64a40->sd.fwnode = endpoint;
-
return 0;
-
-error_free_fwnode:
- v4l2_fwnode_endpoint_free(&v4l2_fwnode);
-error_put_fwnode:
- fwnode_handle_put(endpoint);
- return ret;
}
static int ov64a40_get_regulators(struct ov64a40 *ov64a40)
@@ -3586,7 +3582,7 @@ static int ov64a40_probe(struct i2c_clie
ret = ov64a40_power_on(&client->dev);
if (ret)
- goto error_put_fwnode;
+ return ret;
ret = ov64a40_identify(ov64a40);
if (ret)
@@ -3644,8 +3640,6 @@ error_handler_free:
error_poweroff:
ov64a40_power_off(&client->dev);
pm_runtime_set_suspended(&client->dev);
-error_put_fwnode:
- fwnode_handle_put(ov64a40->sd.fwnode);
return ret;
}
@@ -3653,10 +3647,8 @@ error_put_fwnode:
static void ov64a40_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
- struct ov64a40 *ov64a40 = sd_to_ov64a40(sd);
v4l2_async_unregister_subdev(sd);
- fwnode_handle_put(ov64a40->sd.fwnode);
v4l2_subdev_cleanup(sd);
media_entity_cleanup(&sd->entity);
v4l2_ctrl_handler_free(sd->ctrl_handler);