| From 7e26f0edcc0626e680878903e2806ae7695b9ef9 Mon Sep 17 00:00:00 2001 |
| From: Daniel Vetter <daniel.vetter@ffwll.ch> |
| Date: Tue, 30 Apr 2013 14:01:43 +0200 |
| Subject: drm/i915: rip out TV-out lore ... |
| |
| This seems to be an impressive piece of copy&pasta lore. I've |
| checked all docs and on most platforms these bits are all MBZ, with |
| the exception of the SDVO pixel multiplier on gen3. On gen4 that |
| moved to a special DPLL_MD registers. |
| |
| No indication whatsoever that we actually need this for native |
| TV-out support. I suspect this started as a hack when we didn't |
| yet have proper pixel multiplier support in place for SDVO TV, but |
| then got stuck in a life of its own. |
| |
| Just rip it out. |
| |
| Reviewed-by: Jani Nikula <jani.nikula@intel.com> |
| Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
| (cherry picked from commit fec32900cc8f4ec8ad6b3007d2035e598f128f24) |
| Signed-off-by: Darren Hart <dvhart@linux.intel.com> |
| --- |
| drivers/gpu/drm/i915/intel_display.c | 4 ---- |
| 1 file changed, 4 deletions(-) |
| |
| diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c |
| index d747f227bfe3..ca2d851d3b73 100644 |
| --- a/drivers/gpu/drm/i915/intel_display.c |
| +++ b/drivers/gpu/drm/i915/intel_display.c |
| @@ -4596,10 +4596,6 @@ static void i9xx_update_pll(struct intel_crtc *crtc, |
| |
| if (is_sdvo && needs_tv_clock) |
| dpll |= PLL_REF_INPUT_TVCLKINBC; |
| - else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_TVOUT)) |
| - /* XXX: just matching BIOS for now */ |
| - /* dpll |= PLL_REF_INPUT_TVCLKINBC; */ |
| - dpll |= 3; |
| else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) && |
| intel_panel_use_ssc(dev_priv) && num_connectors < 2) |
| dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN; |
| -- |
| 1.8.5.rc3 |
| |
