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author | Stanislav Lisovskiy | 2019-07-12 10:19:38 +0200 |
---|---|---|
committer | Greg Kroah-Hartman | 2019-08-16 10:12:51 +0200 |
commit | edc388566a1d25f88e631bd8170462d4f86c5a24 (patch) | |
tree | e6ea2cb35d6e7000ec7f7af84395a1ef40565529 /drivers/gpu/drm/v3d/v3d_drv.h | |
parent | hwmon: (nct7802) Fix wrong detection of in4 presence (diff) | |
download | kernel-qcow2-linux-edc388566a1d25f88e631bd8170462d4f86c5a24.tar.gz kernel-qcow2-linux-edc388566a1d25f88e631bd8170462d4f86c5a24.tar.xz kernel-qcow2-linux-edc388566a1d25f88e631bd8170462d4f86c5a24.zip |
drm/i915: Fix wrong escape clock divisor init for GLK
commit 73a0ff0b30af79bf0303d557eb82f1d1945bb6ee upstream.
According to Bspec clock divisor registers in GeminiLake
should be initialized by shifting 1(<<) to amount of correspondent
divisor. While i915 was writing all this time that value as is.
Surprisingly that it by accident worked, until we met some issues
with Microtech Etab.
v2: Added Fixes tag and cc
v3: Added stable to cc as well.
Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108826
Fixes: bcc657004841 ("drm/i915/glk: Program txesc clock divider for GLK")
Cc: Deepak M <m.deepak@intel.com>
Cc: Madhav Chauhan <madhav.chauhan@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190712081938.14185-1-stanislav.lisovskiy@intel.com
(cherry picked from commit ce52ad5dd52cfaf3398058384e0ff94134bbd89c)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/v3d/v3d_drv.h')
0 files changed, 0 insertions, 0 deletions