One of those 8 commits is responsible for bug https://bugzilla.kernel.org/show_bug.cgi?id=60674

git-bisect-visualize

commit fe214163cc6e6b33253b7ac14bc3dd616e76b513
Author: Rafał Miłecki <zajec5@gmail.com>
Date:   Fri Apr 19 19:01:25 2013 +0200

    drm: add drm_edid_to_eld helper extracting SADs from EDID (v2)

    Some devices (ATI/AMD cards) don't support passing ELD struct to the
    hardware but just require filling specific registers and then the
    hardware/firmware does the rest. In such cases we need to read the info
    from SAD blocks and put them in the correct registers.

    agd5f: note that the returned pointer needs to be kfreed as per
    Christian's suggestion.

    v2: fix warning

    Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
    Reviewed-by: Christian König <christian.koenig@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

commit 205996c0776a229052c33688ee58a605a021740d
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Fri Mar 1 17:08:42 2013 -0500

    drm/radeon/si: add support for golden register init

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

commit a2c96a2112a32b332aa7bf9622b122a18caf2dfc
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Thu Feb 28 17:58:36 2013 -0500

    drm/radeon/cayman,TN: add support for golden register init (v2)

    v2: add richland support

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

commit d4788db30a1a66255b592dd12613dda80c1443f7
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Thu Feb 28 14:40:09 2013 -0500

    drm/radeon/evergreen: add support for golden register init

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

commit fbb55663e8681dc135567e6a8b6bca2e05254d72
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Tue Feb 26 15:59:47 2013 -0500

    drm/radeon/7xx: add support for golden register init

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

commit 2e1b65f98bcaea6544d8781c3b34c631fcebe29a
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Tue Feb 26 11:26:51 2013 -0500

    drm/radeon: add helper function to support golden registers

    Golden registers are arrays of register settings from the
    hw team that need to be initialized at asic startup.

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

commit 79b52d6a7085a3e430c6de450a5847fdbe04159b
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Thu Apr 18 16:26:36 2013 -0400

    drm/radeon: fix typo in si_select_se_sh()

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    Cc: stable@vger.kernel.org

commit a973bea11c91bf8283cc13eb17d3ef7086f679d6
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Thu Apr 18 11:32:16 2013 -0400

    drm/radeon: switch audio handling to use callbacks

    Register audio callbacks for asic where we support
    audio.  Cleans up the code and makes it easier to
    add support for newer asics.

    Reviewed-by: Christian König <christian.koenig@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>