1. 26 Jun, 2013 18 commits
  2. 25 Jun, 2013 20 commits
  3. 12 Jun, 2013 2 commits
    • Alex Deucher's avatar
      drm/radeon: add backlight quirk for hybrid mac · 80101790
      Alex Deucher authored
      Mac laptops with multiple GPUs apparently use the gmux
      driver for backlight control.  Don't register a radeon
      backlight interface.  We may need to add other pci ids
      for other hybrid mac laptops.
      
      Fixes:
      https://bugs.freedesktop.org/show_bug.cgi?id=65377Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      Cc: stable@vger.kernel.org
      80101790
    • Alex Deucher's avatar
      drm/radeon: fix AVI infoframe generation · f100380e
      Alex Deucher authored
      - remove adding 2 to checksum, this is incorrect.
      
      This was incorrectly introduced in:
      92db7f6c
      http://lists.freedesktop.org/archives/dri-devel/2011-December/017717.html
      However, the off by 2 was due to adding the version twice.
      From the examples in the URL above:
      
      [Rafał Miłecki][RV620] fglrx:
      0x7454: 00 A8 5E 79     R600_HDMI_VIDEOINFOFRAME_0
      0x7458: 00 28 00 10     R600_HDMI_VIDEOINFOFRAME_1
      0x745C: 00 48 00 28     R600_HDMI_VIDEOINFOFRAME_2
      0x7460: 02 00 00 48     R600_HDMI_VIDEOINFOFRAME_3
      ===================
      (0x82 + 0x2 + 0xD) + 0x1F8 = 0x289
      -0x289 = 0x77
      
      However, the payload sum is not 0x1f8, it's 0x1f6.
      00 + A8 + 5E + 00 +
      00 + 28 + 00 + 10 +
      00 + 48 + 00 + 28 +
      00 + 48 =
      0x1f6
      
      Bits 25:24 of HDMI_VIDEOINFOFRAME_3 are the packet version, not part
      of the payload.  So the total would be:
      (0x82 + 0x2 + 0xD) + 0x1f6 = 0x287
      -0x287 = 0x79
      
      - properly emit the AVI infoframe version.  This was not being
      emitted previous which is probably what caused the issue above.
      
      This should fix blank screen when HDMI audio is enabled on
      certain monitors.
      Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      Cc: stable@vger.kernel.org
      Cc: Rafał Miłecki <zajec5@gmail.com>
      f100380e