diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0252-staging-bcm2835_camera-Ensure-all-buffers-are-return.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0252-staging-bcm2835_camera-Ensure-all-buffers-are-return.patch | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0252-staging-bcm2835_camera-Ensure-all-buffers-are-return.patch b/target/linux/brcm2708/patches-4.19/950-0252-staging-bcm2835_camera-Ensure-all-buffers-are-return.patch deleted file mode 100644 index b5fbceba24..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0252-staging-bcm2835_camera-Ensure-all-buffers-are-return.patch +++ /dev/null @@ -1,95 +0,0 @@ -From 754a5ed1aa42ce9d5be5f84a5a0888f850b15e00 Mon Sep 17 00:00:00 2001 -From: Dave Stevenson <dave.stevenson@raspberrypi.org> -Date: Thu, 28 Jun 2018 15:57:25 +0100 -Subject: [PATCH 252/703] staging: bcm2835_camera: Ensure all buffers are - returned on disable - -With the recent change to match MMAL and V4L2 buffers there -is a need to wait for all MMAL buffers to be returned during -stop_streaming. - -Fixes: 9384167 "staging: bcm2835-camera: Remove V4L2/MMAL buffer remapping" -Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> ---- - .../bcm2835-camera/bcm2835-camera.c | 22 ++++++++++++++----- - .../vc04_services/bcm2835-camera/mmal-vchiq.c | 4 ++++ - .../vc04_services/bcm2835-camera/mmal-vchiq.h | 3 +++ - 3 files changed, 23 insertions(+), 6 deletions(-) - ---- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c -+++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c -@@ -607,6 +607,7 @@ static void stop_streaming(struct vb2_qu - int ret; - unsigned long timeout; - struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq); -+ struct vchiq_mmal_port *port = dev->capture.port; - - v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n", - __func__, dev); -@@ -630,12 +631,6 @@ static void stop_streaming(struct vb2_qu - &dev->capture.frame_count, - sizeof(dev->capture.frame_count)); - -- /* wait for last frame to complete */ -- timeout = wait_for_completion_timeout(&dev->capture.frame_cmplt, HZ); -- if (timeout == 0) -- v4l2_err(&dev->v4l2_dev, -- "timed out waiting for frame completion\n"); -- - v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, - "disabling connection\n"); - -@@ -650,6 +645,21 @@ static void stop_streaming(struct vb2_qu - ret); - } - -+ /* wait for all buffers to be returned */ -+ while (atomic_read(&port->buffers_with_vpu)) { -+ v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, -+ "%s: Waiting for buffers to be returned - %d outstanding\n", -+ __func__, atomic_read(&port->buffers_with_vpu)); -+ timeout = wait_for_completion_timeout(&dev->capture.frame_cmplt, -+ HZ); -+ if (timeout == 0) { -+ v4l2_err(&dev->v4l2_dev, "%s: Timeout waiting for buffers to be returned - %d outstanding\n", -+ __func__, -+ atomic_read(&port->buffers_with_vpu)); -+ break; -+ } -+ } -+ - if (disable_camera(dev) < 0) - v4l2_err(&dev->v4l2_dev, "Failed to disable camera\n"); - } ---- a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c -+++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c -@@ -246,6 +246,8 @@ static void buffer_work_cb(struct work_s - struct mmal_msg_context *msg_context = - container_of(work, struct mmal_msg_context, u.bulk.work); - -+ atomic_dec(&msg_context->u.bulk.port->buffers_with_vpu); -+ - msg_context->u.bulk.port->buffer_cb(msg_context->u.bulk.instance, - msg_context->u.bulk.port, - msg_context->u.bulk.status, -@@ -389,6 +391,8 @@ buffer_from_host(struct vchiq_mmal_insta - INIT_WORK(&msg_context->u.bulk.buffer_to_host_work, - buffer_to_host_work_cb); - -+ atomic_inc(&port->buffers_with_vpu); -+ - /* prep the buffer from host message */ - memset(&m, 0xbc, sizeof(m)); /* just to make debug clearer */ - ---- a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h -+++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h -@@ -72,6 +72,9 @@ struct vchiq_mmal_port { - struct list_head buffers; - /* lock to serialise adding and removing buffers from list */ - spinlock_t slock; -+ -+ /* Count of buffers the VPU has yet to return */ -+ atomic_t buffers_with_vpu; - /* callback on buffer completion */ - vchiq_mmal_buffer_cb buffer_cb; - /* callback context */ |