diff options
Diffstat (limited to 'drivers/input/touchscreen/sur40.c')
| -rw-r--r-- | drivers/input/touchscreen/sur40.c | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c index 880c40b23f66..4ea475775d58 100644 --- a/drivers/input/touchscreen/sur40.c +++ b/drivers/input/touchscreen/sur40.c @@ -126,7 +126,7 @@ struct sur40_image_header { #define VIDEO_PACKET_SIZE 16384 /* polling interval (ms) */ -#define POLL_INTERVAL 4 +#define POLL_INTERVAL 1 /* maximum number of contacts FIXME: this is a guess? */ #define MAX_CONTACTS 64 @@ -151,7 +151,6 @@ struct sur40_state { struct mutex lock; struct vb2_queue queue; - struct vb2_alloc_ctx *alloc_ctx; struct list_head buf_list; spinlock_t qlock; int sequence; @@ -448,7 +447,7 @@ static void sur40_process_video(struct sur40_state *sur40) /* return error if streaming was stopped in the meantime */ if (sur40->sequence == -1) - goto err_poll; + return; /* mark as finished */ new_buf->vb.vb2_buf.timestamp = ktime_get_ns(); @@ -580,19 +579,13 @@ static int sur40_probe(struct usb_interface *interface, sur40->queue = sur40_queue; sur40->queue.drv_priv = sur40; sur40->queue.lock = &sur40->lock; + sur40->queue.dev = sur40->dev; /* initialize the queue */ error = vb2_queue_init(&sur40->queue); if (error) goto err_unreg_v4l2; - sur40->alloc_ctx = vb2_dma_sg_init_ctx(sur40->dev); - if (IS_ERR(sur40->alloc_ctx)) { - dev_err(sur40->dev, "Can't allocate buffer context"); - error = PTR_ERR(sur40->alloc_ctx); - goto err_unreg_v4l2; - } - sur40->vdev = sur40_video_device; sur40->vdev.v4l2_dev = &sur40->v4l2; sur40->vdev.lock = &sur40->lock; @@ -633,7 +626,6 @@ static void sur40_disconnect(struct usb_interface *interface) video_unregister_device(&sur40->vdev); v4l2_device_unregister(&sur40->v4l2); - vb2_dma_sg_cleanup_ctx(sur40->alloc_ctx); input_unregister_polled_device(sur40->input); input_free_polled_device(sur40->input); @@ -653,13 +645,10 @@ static void sur40_disconnect(struct usb_interface *interface) */ static int sur40_queue_setup(struct vb2_queue *q, unsigned int *nbuffers, unsigned int *nplanes, - unsigned int sizes[], void *alloc_ctxs[]) + unsigned int sizes[], struct device *alloc_devs[]) { - struct sur40_state *sur40 = vb2_get_drv_priv(q); - if (q->num_buffers + *nbuffers < 3) *nbuffers = 3 - q->num_buffers; - alloc_ctxs[0] = sur40->alloc_ctx; if (*nplanes) return sizes[0] < sur40_video_format.sizeimage ? -EINVAL : 0; @@ -736,6 +725,7 @@ static int sur40_start_streaming(struct vb2_queue *vq, unsigned int count) static void sur40_stop_streaming(struct vb2_queue *vq) { struct sur40_state *sur40 = vb2_get_drv_priv(vq); + vb2_wait_for_all_buffers(vq); sur40->sequence = -1; /* Release all active buffers */ @@ -793,7 +783,6 @@ static int sur40_vidioc_enum_fmt(struct file *file, void *priv, { if (f->index != 0) return -EINVAL; - strlcpy(f->description, "8-bit greyscale", sizeof(f->description)); f->pixelformat = V4L2_PIX_FMT_GREY; f->flags = 0; return 0; |