diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0405-staging-mmal-vchiq-Remove-check-of-the-number-of-buf.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0405-staging-mmal-vchiq-Remove-check-of-the-number-of-buf.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0405-staging-mmal-vchiq-Remove-check-of-the-number-of-buf.patch b/target/linux/brcm2708/patches-4.14/950-0405-staging-mmal-vchiq-Remove-check-of-the-number-of-buf.patch new file mode 100644 index 0000000000..e51626e08e --- /dev/null +++ b/target/linux/brcm2708/patches-4.14/950-0405-staging-mmal-vchiq-Remove-check-of-the-number-of-buf.patch @@ -0,0 +1,39 @@ +From 338d4e95632213c910335b0283ce52ce0643881d Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.org> +Date: Wed, 4 Jul 2018 17:01:15 +0100 +Subject: [PATCH 405/454] staging: mmal-vchiq: Remove check of the number of + buffers supplied + +Before 9384167 there was a need to ensure that there were sufficient +buffers supplied from the user to cover those being sent to the VPU +(always 1). +With 9384167 the buffers are linked 1:1 between MMAL and V4L2, +therefore there is no need for that check, and indeed it is wrong +as there is no need to submit all the buffers before starting streaming. + +Fixes: 9384167 "staging: bcm2835-camera: Remove V4L2/MMAL buffer remapping" + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> +--- + .../staging/vc04_services/bcm2835-camera/mmal-vchiq.c | 10 ---------- + 1 file changed, 10 deletions(-) + +--- a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c ++++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c +@@ -1410,16 +1410,6 @@ static int port_enable(struct vchiq_mmal + if (port->enabled) + return 0; + +- /* ensure there are enough buffers queued to cover the buffer headers */ +- if (port->buffer_cb) { +- hdr_count = 0; +- list_for_each(buf_head, &port->buffers) { +- hdr_count++; +- } +- if (hdr_count < port->current_buffer.num) +- return -ENOSPC; +- } +- + ret = port_action_port(instance, port, + MMAL_MSG_PORT_ACTION_TYPE_ENABLE); + if (ret) |