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  1. 13 Jun, 2013 3 commits
  2. 14 Apr, 2013 2 commits
  3. 04 Apr, 2013 1 commit
  4. 31 Mar, 2013 5 commits
  5. 05 Feb, 2013 1 commit
  6. 21 Dec, 2012 1 commit
  7. 01 Oct, 2012 3 commits
  8. 15 Aug, 2012 1 commit
  9. 25 Jun, 2012 1 commit
    • Sylwester Nawrocki's avatar
      [media] s5p-fimc: Prevent lock-up in multiple sensor systems · e3fc82e8
      Sylwester Nawrocki authored
      The camera clocks managed by the driver were improperly reference counted
      and remained disabled when multiple video nodes were opened simultaneously.
      It manifested itself with following warning:
      
       [12.920000] WARNING: at drivers/media/video/s5p-fimc/fimc-mdevice.c:787 __fimc_md_set_camclk+0x1c0/0x1dc()
       [13.005000] Modules linked in:
       [13.005000] Backtrace:
       [13.040000] [<c0013084>] (dump_backtrace+0x0/0x10c) from [<c0454b70>] (dump_stack+0x18/0x1c)
       [13.070000]  r7:00000009 r6:00000313 r5:c02d576c r4:00000000
       [13.155000] [<c0454b58>] (dump_stack+0x0/0x1c) from [<c0022ec4>] (warn_slowpath_common+0x54/0x6c)
       [13.285000] [<c0022e70>] (warn_slowpath_common+0x0/0x6c) from [<c0022f00>] (warn_slowpath_null+0x24/0x2c)
       [13.360000]  r9:e1981010 r8:00000000 r7:c061d3fc r6:e1981010 r5:e1981030
       [13.430000] r4:00000000
       [13.430000] [<c0022edc>] (warn_slowpath_null+0x0/0x2c) from [<c02d576c>] (__fimc_md_set_camclk+0x1c0/0x1dc)
       [13.550000] [<c02d55ac>] (__fimc_md_set_camclk+0x0/0x1dc) from [<c02d57b0>] (fimc_md_set_camclk+0x28/0x2c)
       [13.630000] [<c02d5788>] (fimc_md_set_camclk+0x0/0x2c) from [<c02d57e8>] (__fimc_pipeline_shutdown+0x34/0x50)
       [13.705000] [<c02d57b4>] (__fimc_pipeline_shutdown+0x0/0x50) from [<c02d5844>] (fimc_pipeline_shutdown+0x40/0x58)
       [13.765000]  r5:e2391200 r4:e2357704
       [13.805000] [<c02d5804>] (fimc_pipeline_shutdown+0x0/0x58) from [<c02d4754>] (fimc_capture_close+0xcc/0xe4)
       [13.915000]  r5:e1b396c0 r4:e2357410
       [13.915000] [<c02d4688>] (fimc_capture_close+0x0/0xe4) from [<c02b2d5c>] (v4l2_release+0x5c/0x80)
       [13.970000]  r7:00000010 r6:e1d2d990 r5:e1b396c0 r4:e2394800
       [14.000000] [<c02b2d00>] (v4l2_release+0x0/0x80) from [<c00b66cc>] (fput+0xc0/0x22c)
       [14.015000]  r5:c157ef30 r4:e1b396c0
       [14.015000] [<c00b660c>] (fput+0x0/0x22c) from [<c00b2ca0>] (filp_close+0x60/0x80)
       [14.080000] [<c00b2c40>] (filp_close+0x0/0x80) from [<c00b2d78>] (sys_close+0xb8/0xf4)
       [14.125000]  r7:00000001 r6:e1b396c0 r5:c1400340 r4:c1400300
       [14.125000] [<c00b2cc0>] (sys_close+0x0/0xf4) from [<c000f300>] (ret_fast_syscall+0x0/0x30)
       [14.205000]  r7:00000006 r6:beee5b94 r5:00000003 r4:b6f64fac
      
      Fix this, as well as potential memory leaks due to not calling
      v4l2_fh_release() on some error paths.
      
      Also remove some error logs printed for events that aren't critical and
      are normal conditions for some system configurations.
      
      Also check if the device have been properly run-time enabled during
      video node open.
      Signed-off-by: default avatarSylwester Nawrocki <s.nawrocki@samsung.com>
      Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      e3fc82e8
  10. 20 May, 2012 4 commits
  11. 06 Sep, 2011 1 commit
    • Sylwester Nawrocki's avatar
      [media] s5p-fimc: Add the media device driver · d3953223
      Sylwester Nawrocki authored
      Add a top level media device driver aggregating FIMC video devnodes,
      MIPI-CSIS and sensor subdevs. This driver gathers all media entities
      and creates the possible links between them during initialization. By
      default some links will be activated to enable access to all available
      sensors in the system. For example if there are sensors S0, S1 listed
      in the media device platform data definition they will be by default
      assigned to FIMC0, FIMC1 respectively, which in turn will corresponds
      to separate /dev/video?.
      There is enough FIMC H/W entities to cover all available physical camera
      interfaces in the system.
      
      The fimc media device driver is bound to the "s5p-fimc-md" platform device.
      Such platform device should be created by board initialization code
      and camera sensors description array need to be specified as its
      platform data.
      
      The media device driver also implements various video pipeline operations,
      for enabling subdevs power, streaming, etc., which will be used by the
      capture video node driver.
      Signed-off-by: default avatarSylwester Nawrocki <s.nawrocki@samsung.com>
      Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      d3953223