openwrt/target/linux/bcm27xx/patches-5.4/950-0651-media-bcm2835-unicam-Disable-event-related-ioctls-on.patch
Álvaro Fernández Rojas 62b7f5931c bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
2021-02-19 07:17:21 +01:00

32 lines
1.2 KiB
Diff

From e8f2c38720e391ce44154f17f3602484c1827a59 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Tue, 24 Mar 2020 23:13:02 +0200
Subject: [PATCH] media: bcm2835-unicam: Disable event-related ioctls
on metadata node
The unicam driver supports both the SOURCE_CHANGE and CTRL events. Both
events are only generated on the image video node, so the event-related
ioctls are useless on the medatada node. Disable them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
---
drivers/media/platform/bcm2835/bcm2835-unicam.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
+++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
@@ -2374,6 +2374,11 @@ static int register_node(struct unicam_d
return -ENOMEM;
}
+ if (node->pad_id == METADATA_PAD) {
+ v4l2_disable_ioctl(vdev, VIDIOC_DQEVENT);
+ v4l2_disable_ioctl(vdev, VIDIOC_SUBSCRIBE_EVENT);
+ v4l2_disable_ioctl(vdev, VIDIOC_UNSUBSCRIBE_EVENT);
+ }
if (node->pad_id == METADATA_PAD ||
!v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_STD);