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media: exynos-gsc: Register v4l2 device

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commit d0b1c31349 upstream.

Gscaler video device registration was happening without reference to
a parent v4l2_dev causing probe to fail. The patch creates a parent
v4l2 device and uses it for the gsc m2m video device registration.
This fixes regression introduced with comit commit 1c1d86a1ea
[media] v4l2: always require v4l2_dev, rename parent to dev_parent

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arun Kumar K
2013-07-26 07:28:01 -03:00
committed by Greg Kroah-Hartman
parent 5f24e1842d
commit 1d9d780fcd
3 changed files with 10 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/media/platform/exynos-gsc/gsc-core.c
View File

@@ -1122,10 +1122,14 @@ static int gsc_probe(struct platform_device *pdev)
goto err_clk;
}
ret = gsc_register_m2m_device(gsc);
ret = v4l2_device_register(dev, &gsc->v4l2_dev);
if (ret)
goto err_clk;
ret = gsc_register_m2m_device(gsc);
if (ret)
goto err_v4l2;
platform_set_drvdata(pdev, gsc);
pm_runtime_enable(dev);
ret = pm_runtime_get_sync(&pdev->dev);
@@ -1147,6 +1151,8 @@ err_pm:
pm_runtime_put(dev);
err_m2m:
gsc_unregister_m2m_device(gsc);
err_v4l2:
v4l2_device_unregister(&gsc->v4l2_dev);
err_clk:
gsc_clk_put(gsc);
return ret;
@@ -1157,6 +1163,7 @@ static int gsc_remove(struct platform_device *pdev)
struct gsc_dev *gsc = platform_get_drvdata(pdev);
gsc_unregister_m2m_device(gsc);
v4l2_device_unregister(&gsc->v4l2_dev);
vb2_dma_contig_cleanup_ctx(gsc->alloc_ctx);
pm_runtime_disable(&pdev->dev);

1
drivers/media/platform/exynos-gsc/gsc-core.h
View File

@@ -343,6 +343,7 @@ struct gsc_dev {
unsigned long state;
struct vb2_alloc_ctx *alloc_ctx;
struct video_device vdev;
struct v4l2_device v4l2_dev;
};
/**

1
drivers/media/platform/exynos-gsc/gsc-m2m.c
View File

@@ -751,6 +751,7 @@ int gsc_register_m2m_device(struct gsc_dev *gsc)
gsc->vdev.release = video_device_release_empty;
gsc->vdev.lock = &gsc->lock;
gsc->vdev.vfl_dir = VFL_DIR_M2M;
gsc->vdev.v4l2_dev = &gsc->v4l2_dev;
snprintf(gsc->vdev.name, sizeof(gsc->vdev.name), "%s.%d:m2m",
GSC_MODULE_NAME, gsc->id);