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authorTakashi Iwai <tiwai@suse.de>2013-03-18 11:25:36 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-03-18 11:25:36 +0100
commit9d1a455b0ca1c2c956b4d9ab212864a8695270f1 (patch)
tree3f77f0d1d0be0c02273399d7befbe593f7bd465e /MAINTAINERS
parent3b4f819d5eac94ba8fe5e8c061f6dabfe8d7b22c (diff)
downloadlinux-9d1a455b0ca1c2c956b4d9ab212864a8695270f1.tar.gz
drm/i915: Use the fixed pixel clock for eDP in intel_dp_set_m_n()
The eDP output on HP Z1 is still broken when X is started even after fixing the infinite link-train loop. The regression was introduced in 3.6 kernel for cleaning up the mode clock handling code in intel_dp.c by the commit [71244653: drm/i915: adjusted_mode->clock in the dp mode_fix]. In the past, the clock of the reference mode was modified in intel_dp_mode_fixup() in the case of eDP fixed clock, and this clock was used for calculating in intel_dp_set_m_n(). This override was removed, thus the wrong mode clock is used for the calculation, resulting in a psychedelic smoking output in the end. This patch corrects the clock to be used in the place. v1->v2: Use intel_edp_target_clock() for checking eDP fixed clock instead of open code as in ironlake_set_m_n(). Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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