drm/i915: Make .modeset_calc_cdclk() mandatory

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While not all platforms allow us to change the cdclk frequency
we should still verify that the fixed cdclk frequency isn't
too low. To that end let's cook up a .modeset_calc_cdclk()
implementation that only does the min_cdclk vs. actual cdclk
frequency check for such platforms.

Also we mustn't forget about double wide pipe on gen2/3 when
doing this.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190708125325.16576-11-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

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This commit is contained in:

Ville Syrjälä 2019-07-08 15:53:16 +03:00

parent 131d3b1af1

commit 3e30d70805

2 changed files with 28 additions and 11 deletions

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31

drivers/gpu/drm/i915/display/intel_cdclk.c

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8

drivers/gpu/drm/i915/display/intel_display.c

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