Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a4006641 authored by Paulo Zanoni's avatar Paulo Zanoni Committed by Daniel Vetter
Browse files

drm/i915: add the FCLK case to intel_ddi_get_cdclk_freq 



We already have code to disable LCPLL and switch to FCLK, so we need this too.
We still don't call the code to disable LCPLL, but we'll call it when we add
support for Package C8+.

Signed-off-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent ec013e7f

drivers/gpu/drm/i915/intel_ddi.c

+6 −3
Original line number Diff line number Diff line
@@ -1139,10 +1139,13 @@ static void intel_disable_ddi(struct intel_encoder *intel_encoder) 


int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv)

{

	if (I915_READ(HSW_FUSE_STRAP) & HSW_CDCLK_LIMIT)

	uint32_t lcpll = I915_READ(LCPLL_CTL);



	if (lcpll & LCPLL_CD_SOURCE_FCLK)

		return 800000;

	else if (I915_READ(HSW_FUSE_STRAP) & HSW_CDCLK_LIMIT)

		return 450000;

	else if ((I915_READ(LCPLL_CTL) & LCPLL_CLK_FREQ_MASK) ==

		 LCPLL_CLK_FREQ_450)

	else if ((lcpll & LCPLL_CLK_FREQ_MASK) == LCPLL_CLK_FREQ_450)

		return 450000;

	else if (IS_ULT(dev_priv->dev))

		return 337500;