redonkable/alistair23-linux
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drm/i915: drop TVclock special casing on ilk+

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TV-out uses the same reference clock as everyone else. The only
difference seems to be in the slightly different CB tuning limit.

Note that PLL_REF_INPUT_TVCLKINBC is a reserved value on ilk+. Also
strictly speaking we don't support native TV-out on ilk+, hence all
that code is dead. But Bspec still contains some residual mentions of
native TV-out on some pch-split platforms, so I've figured it doesn't
hurt to keep the code around a bit longer (e.g. in the cb tune
function).

v2: Improve the commit message as Jani suggested in his review.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2013-04-30 14:01:42 +02:00
parent 7048455929
commit b4c09f3bbd
1 changed files with 1 additions and 10 deletions
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11
drivers/gpu/drm/i915/intel_display.c
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@ -5637,9 +5637,6 @@ static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
if (intel_encoder->needs_tv_clock)
is_tv = true;
break;
case INTEL_OUTPUT_TVOUT:
is_tv = true;
break;
}
num_connectors++;
@ -5698,13 +5695,7 @@ static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
break;
}
if (is_sdvo && is_tv)
dpll |= PLL_REF_INPUT_TVCLKINBC;
else if (is_tv)
/* XXX: just matching BIOS for now */
/* dpll |= PLL_REF_INPUT_TVCLKINBC; */
dpll |= 3;
else if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
else
dpll |= PLL_REF_INPUT_DREFCLK;