Files
linux/drivers/gpu/drm
Gabriel Feceoru 8c448cadd4 drm/i915: Handle PipeC fused off on IVB/HSW/BDW
Some Gen7/8 production parts may have the Display Pipe C fused off.
In this case, the display hardware will prevent the enable bit in
PIPE_CONF register (for Pipe C) from being set to 1.

Fixed by adjusting pipe_count to reflect this.

v2: Rename HSW_PIPE_C_DISABLE to IVB_PIPE_C_DISABLE as it already exists
    on ivybridge (Ville)
v3: Remove unnecessary MMIO read, correct the description (Damien)
v4: Be more specific in description (Patrick)

Signed-off-by: Gabriel Feceoru <gabriel.feceoru@intel.com>
Reviewed-by: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1453462125-21519-1-git-send-email-gabriel.feceoru@intel.com
2016-02-10 08:29:34 +01:00
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