From: Philipp Zabel 
Date: Thu, 21 Aug 2014 14:54:44 +0000 (+0200)
Subject: usb: gadget: uvc: Add support for DMABUF importing
X-Git-Tag: v3.18-rc1~131^2~118^2~69
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ee7ec7f6b39d2ae25dca000398929edaa2ce412d;p=users%2Fdwmw2%2Flinux.git
usb: gadget: uvc: Add support for DMABUF importing
Activate the videobuf2 DMABUF support. As vb2-vmalloc supports the
importer role only, exporting buffers isn't supported yet. When the
exporter role will be implemented in vb2-vmalloc the UVC gadget driver
will automatically gain support for it.
Signed-off-by: Philipp Zabel 
Signed-off-by: Laurent Pinchart 
Signed-off-by: Felipe Balbi 
---
diff --git a/drivers/usb/gadget/function/uvc_queue.c b/drivers/usb/gadget/function/uvc_queue.c
index 1c29bc954db9f..8590f9ff0849d 100644
--- a/drivers/usb/gadget/function/uvc_queue.c
+++ b/drivers/usb/gadget/function/uvc_queue.c
@@ -132,7 +132,7 @@ static int uvc_queue_init(struct uvc_video_queue *queue,
 	int ret;
 
 	queue->queue.type = type;
-	queue->queue.io_modes = VB2_MMAP | VB2_USERPTR;
+	queue->queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
 	queue->queue.drv_priv = queue;
 	queue->queue.buf_struct_size = sizeof(struct uvc_buffer);
 	queue->queue.ops = &uvc_queue_qops;