drm/i915: don't write PLANE_BUF_CFG twice every time

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We were writing to PLANE_BUF_CFG(pipe, plane_id) twice for every
platform, and we were even using different values on the gen10- planar
case. The first write is useless since it just gets replaced with the
next one, so kill it.

There's a lot to improve in the DDB code, but let's start by avoiding
the double write.

Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181004231600.14101-6-paulo.r.zanoni@intel.com

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Paulo Zanoni 2018-10-04 16:15:59 -07:00

parent cbacc79db6

commit 9e44b180f8

1 changed files with 0 additions and 2 deletions

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drivers/gpu/drm/i915/intel_pm.c

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