[media] gsc-m2m: add device name sufix to bus_info capatiliby field

The driver doesn't set the device in the struct v4l2_capability bus_info
field so v4l2-compliance reports the following error for VIDIOC_QUERYCAP:

Required ioctls:
                fail: v4l2-compliance.cpp(537): missing bus_info prefix ('platform')
        test VIDIOC_QUERYCAP: FAIL

This patch fixes this by filling also the device besides the bus.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c
index ec6494c..725ee8f 100644 (file)
--- a/drivers/media/platform/exynos-gsc/gsc-m2m.c
+++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c
@@ -279,7 +279,8 @@ static int gsc_m2m_querycap(struct file *file, void *fh,
 
        strlcpy(cap->driver, gsc->pdev->name, sizeof(cap->driver));
        strlcpy(cap->card, gsc->pdev->name, sizeof(cap->card));
-       strlcpy(cap->bus_info, "platform", sizeof(cap->bus_info));
+       snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
+                dev_name(&gsc->pdev->dev));
        cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M_MPLANE |
                V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE;