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authorÁlvaro Fernández Rojas <noltari@gmail.com>2021-08-21 10:54:34 +0200
committerÁlvaro Fernández Rojas <noltari@gmail.com>2021-08-21 19:07:07 +0200
commit8299d1f057439f94c6a4412e2e5c5082b82a30c9 (patch)
tree1bf678d61f11f7394493be464c7876e496f7faed /target/linux/bcm27xx/patches-5.10/950-0516-staging-bcm2835-camera-Add-support-for-DMABUFs.patch
parent33b6885975ce376ff075362b7f0890326043111b (diff)
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bcm27xx: add kernel 5.10 support
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0516-staging-bcm2835-camera-Add-support-for-DMABUFs.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.10/950-0516-staging-bcm2835-camera-Add-support-for-DMABUFs.patch37
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0516-staging-bcm2835-camera-Add-support-for-DMABUFs.patch b/target/linux/bcm27xx/patches-5.10/950-0516-staging-bcm2835-camera-Add-support-for-DMABUFs.patch
new file mode 100644
index 0000000000..7f446e7189
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0516-staging-bcm2835-camera-Add-support-for-DMABUFs.patch
@@ -0,0 +1,37 @@
+From 12dc4e884b44a95ebd4da612a5f57a24e9a1930f Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 17 Mar 2021 12:34:57 +0000
+Subject: [PATCH] staging/bcm2835-camera: Add support for DMABUFs
+
+DMABUFs are all handled by videobuf2, so there is no reason not
+to enable support for them.
+
+Note that this driver is still using the vmalloc allocator, so
+the buffers it allocates will not be compatible with the codec
+or ISP driver that require contiguous buffers. However this
+driver should be able to import the buffers allocated by them.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
++++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
+@@ -1453,6 +1453,7 @@ static const struct v4l2_ioctl_ops camer
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
++ .vidioc_expbuf = vb2_ioctl_expbuf,
+ .vidioc_enum_framesizes = vidioc_enum_framesizes,
+ .vidioc_enum_frameintervals = vidioc_enum_frameintervals,
+ .vidioc_g_parm = vidioc_g_parm,
+@@ -1934,7 +1935,7 @@ static int bcm2835_mmal_probe(struct pla
+ q = &dev->capture.vb_vidq;
+ memset(q, 0, sizeof(*q));
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+- q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
++ q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ | VB2_DMABUF;
+ q->drv_priv = dev;
+ q->buf_struct_size = sizeof(struct vb2_mmal_buffer);
+ q->ops = &bm2835_mmal_video_qops;