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path: root/drivers/media/usb/gspca/sn9c20x.c
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* [media] sn9c20x: Remove deprecated create_singlethread_workqueueBhaktipriya Shridhar2016-07-08
| | | | | | | | | | | | | | | | | | | | | | | | The workqueue "work_thread" is involved in JPEG quality update. It has a single work item(&sd->work) and hence doesn't require ordering. Also, it is not being used on a memory reclaim path. Hence, the singlethreaded workqueue has been replaced with the use of system_wq. System workqueues have been able to handle high level of concurrency for a long time now and hence it's not required to have a singlethreaded workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue created with create_singlethread_workqueue(), system_wq allows multiple work items to overlap executions even on the same CPU; however, a per-cpu workqueue doesn't have any CPU locality or global ordering guarantee unless the target CPU is explicitly specified and thus the increase of local concurrency shouldn't make any difference. Work item has been flushed in sd_stop0() to ensure that there are no pending tasks while disconnecting the driver. Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] sn9c20x: fix checkpatch warning: sizeof cmatrix should be ↵Morgan Phillips2014-09-21
| | | | | | | | sizeof(cmatrix) Signed-off-by: Morgan Phillips <winter2718@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] sn9c20x.c: fix checkpatch error: that open brace { should be on the ↵Morgan Phillips2014-09-21
| | | | | | | | previous line Signed-off-by: Morgan Phillips <winter2718@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media: gspca: sn9c20x: add ID for Genius Look 1320 V2Wolfram Sang2014-02-28
| | | | | | | Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] gspca: store current mode instead of individual parametersOndrej Zary2013-09-26
| | | | | | | | | | Store complete current mode (struct v4l2_pix_format) in struct gspca_dev instead of separate pixfmt, width and height parameters. This is a preparation for variable resolution support. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] sn9c20x: the reg->size field wasn't filled inHans Verkuil2013-06-17
| | | | | Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] gspca: remove g_chip_identHans Verkuil2013-06-17
| | | | | | | Remove g_chip_ident and replace it with g_chip_info. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] v4l2: add const to argument of write-only s_register ioctlHans Verkuil2013-03-24
| | | | | | | | | This ioctl is defined as IOW, so pass the argument as const. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] usb/gspca/sn9c20x.c: use IS_ENABLED() macroPeter Senna Tschudin2013-02-05
| | | | | | | | | | | | | | replace: #if defined(CONFIG_INPUT) || \ defined(CONFIG_INPUT_MODULE) with: #if IS_ENABLED(CONFIG_INPUT) This change was made for: CONFIG_INPUT Reported-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] gspca: Update / fix various comments wrt workqueue usb_lock usageHans de Goede2012-09-13
| | | | | Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] rename most media/video usb drivers to media/usbMauro Carvalho Chehab2012-08-15
Rename all USB drivers with their own directory under drivers/media/video into drivers/media/usb and update the building system. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>