From e37ece47a01203ef1b74f4cbb0bc252e38456c4e Mon Sep 17 00:00:00 2001 From: dumbbell Date: Sat, 24 Aug 2013 16:41:14 +0000 Subject: drm/i915: Import Linux commit 71244653a8fb0f46bc12ae421f1d5f72af6a75da Author: Daniel Vetter Date: Mon Jun 4 18:39:20 2012 +0200 drm/i915: adjusted_mode->clock in the dp mode_fixup ... instead of changing mode->clock, which we should leave as-is. After the previous patch we only touch that if it's a panel, and then adjusted mode->clock equals adjusted_mode->clock. Outside of intel_dp.c we only use ajusted_mode->clock in the mode_set functions. Within intel_dp.c we only use it to calculate the dp dithering and link bw parameters, so that's the only thing we need to fix up. As a temporary ugliness (until the cleanup in the next patch) we pass the adjusted_mode into dp_dither for both parameters (because that one still looks at mode->clock). Note that we do overwrite adjusted_mode->clock with the selected dp link clock, but that only happens after we've calculated everything we need based on the dotclock of the adjusted output configuration. Outside of intel_dp.c only intel_display.c uses adjusted_mode->clock, and that stays the same after this patch (still equals the selected dp link clock). intel_display.c also needs the actual dotclock (as target_clock), but that has been fixed up in the previous patch. v2: Adjust the debug message to also use adjusted_mode->clock. Reviewed-by: Chris Wilson Reviewed-by: Jesse Barnes Signed-off-by: Daniel Vetter --- sys/dev/drm2/i915/intel_dp.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/sys/dev/drm2/i915/intel_dp.c b/sys/dev/drm2/i915/intel_dp.c index 4820e45..471a4e4 100644 --- a/sys/dev/drm2/i915/intel_dp.c +++ b/sys/dev/drm2/i915/intel_dp.c @@ -691,14 +691,9 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, intel_fixed_panel_mode(intel_dp->panel_fixed_mode, adjusted_mode); intel_pch_panel_fitting(dev, DRM_MODE_SCALE_FULLSCREEN, mode, adjusted_mode); - /* - * the mode->clock is used to calculate the Data&Link M/N - * of the pipe. For the eDP the fixed clock should be used. - */ - mode->clock = intel_dp->panel_fixed_mode->clock; } - if (!intel_dp_adjust_dithering(intel_dp, mode, adjusted_mode)) + if (!intel_dp_adjust_dithering(intel_dp, adjusted_mode, adjusted_mode)) return false; bpp = adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 24; @@ -707,7 +702,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, for (clock = 0; clock <= max_clock; clock++) { int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count); - if (intel_dp_link_required(mode->clock, bpp) + if (intel_dp_link_required(adjusted_mode->clock, bpp) <= link_avail) { intel_dp->link_bw = bws[clock]; intel_dp->lane_count = lane_count; -- cgit v1.1