[PATCH 0/8] Rework ironlake_crtc_mode_set

[Paulo Zanoni <przanoni@gmail.com>]

From: Paulo Zanoni <paulo.r.zanoni@intel.com>

Every time I have to change ironlake_crtc_mode_set I get scared by the
fact that it has 404 lines. I feel way more confident when I'm changing
small functions that do specific self-contained things.

Thus, the goal of this patch series is to extract from
ironlake_crtc_mode_set sub-functions that do specific things. The goal
of the series is to only change the coding style, not changing the
functionality.

The order that code executes was slightly changed in a few cases, but I
don't expect this to break anything. I tested this series on a SNB with
LVDS, HDMI, DP and VGA and everything worked. I don't have access to
more machines right now, but once I get to my office again I will test
more.

Also, I did a quick check on i9xx_crtc_mode_set and concluded we won't
be able to reuse any of the ironlake functions on it, although we can
try to split i9xx_crtc_mode_set in a similar way. Still, I'm not sure we
want to do that.

After these changes I'll be able to properly and sanely fix the
Haswell/LPT case (since Haswell/LPT is currently running
ironlake_crtc_mode_set):
  - fork a haswell_crtc_mode_set function
  - create haswell-specific versions of functions that should be
    different on Haswell
  - run IBX/CPT-specific code only on IBX/CPT, same for LPT

Paulo Zanoni (8):
  drm/i915: extract ironlake_set_pipeconf form ironlake_crtc_mode_set
  drm/i915: extract LVDS-specific code from ironlake_crtc_mode_set
  drm/i915: extract set_pipe_timings from ironlake_crtc_mode_set
  drm/i915: simplify setting DSPCNTR inside ironlake_crtc_mode_set
  drm/i915: extract set_m_n from ironlake_crtc_mode_set
  drm/i915: extract compute_clocks from ironlake_crtc_mode_set
  drm/i915: extract pch_pll_set from ironlake_crtc_mode_set
  drm/i915: remove unused variables from ironlake_crtc_mode_set

 drivers/gpu/drm/i915/intel_display.c |  575 +++++++++++++++++++---------------
 drivers/gpu/drm/i915/intel_drv.h     |    3 +
 drivers/gpu/drm/i915/intel_lvds.c    |   43 +++
 3 files changed, 374 insertions(+), 247 deletions(-)

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1.7.10.4