From 16bf900f50ec7fd2f45dc3a297d7936075cdae55 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Date: Sun, 23 Mar 2014 16:25:09 +0100 Subject: [PATCH] usb: gadget: uvc: Switch to monotonic clock for buffer timestamps The wall time clock isn't useful for applications as it can jump around due to time adjustement. Switch to the monotonic clock. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> --- drivers/usb/gadget/uvc_queue.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c index 0bb5d50075de..9ac4ffe19014 100644 --- a/drivers/usb/gadget/uvc_queue.c +++ b/drivers/usb/gadget/uvc_queue.c @@ -20,6 +20,7 @@ #include <linux/vmalloc.h> #include <linux/wait.h> +#include <media/v4l2-common.h> #include <media/videobuf2-vmalloc.h> #include "uvc.h" @@ -379,14 +380,8 @@ static struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue, else nextbuf = NULL; - /* - * FIXME: with videobuf2, the sequence number or timestamp fields - * are valid only for video capture devices and the UVC gadget usually - * is a video output device. Keeping these until the specs are clear on - * this aspect. - */ buf->buf.v4l2_buf.sequence = queue->sequence++; - do_gettimeofday(&buf->buf.v4l2_buf.timestamp); + v4l2_get_timestamp(&buf->buf.v4l2_buf.timestamp); vb2_set_plane_payload(&buf->buf, 0, buf->bytesused); vb2_buffer_done(&buf->buf, VB2_BUF_STATE_DONE); -- 2.34.1