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Commit 09d09386 authored by Ander Conselvan de Oliveira's avatar Ander Conselvan de Oliveira
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drm/i915/glk: Allow dotclock up to 2 * cdclk on geminilake 



Geminilake has double wide pipes so it can output two pixels per CD
clock.

Signed-off-by: default avatarAnder Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1480667037-11215-8-git-send-email-ander.conselvan.de.oliveira@intel.com
parent 89b3c3c7

drivers/gpu/drm/i915/intel_display.c

+6 −4
Original line number Diff line number Diff line
@@ -5805,7 +5805,9 @@ static int intel_compute_max_dotclk(struct drm_i915_private *dev_priv) 
{

	int max_cdclk_freq = dev_priv->max_cdclk_freq;



	if (INTEL_INFO(dev_priv)->gen >= 9 ||

	if (IS_GEMINILAKE(dev_priv))

		return 2 * max_cdclk_freq;

	else if (INTEL_INFO(dev_priv)->gen >= 9 ||

		 IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))

		return max_cdclk_freq;

	else if (IS_CHERRYVIEW(dev_priv))
@@ -6563,9 +6565,9 @@ static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv, 


static int glk_calc_cdclk(int max_pixclk)

{

	if (max_pixclk > 158400)

	if (max_pixclk > 2 * 158400)

		return 316800;

	else if (max_pixclk > 79200)

	else if (max_pixclk > 2 * 79200)

		return 158400;

	else

		return 79200;