drm/i915: drop TVclock special casing on ilk+
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>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 9365c5a..5fcd5b0 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5637,9 +5637,6 @@
if (intel_encoder->needs_tv_clock)
is_tv = true;
break;
- case INTEL_OUTPUT_TVOUT:
- is_tv = true;
- break;
}
num_connectors++;
@@ -5698,13 +5695,7 @@
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;