diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index db3b461ad412..94f860cce3f7 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -208,17 +208,8 @@ intel_dp_link_clock(uint8_t link_bw) */ static int -intel_dp_link_required(struct intel_dp *intel_dp, int pixel_clock, int check_bpp) +intel_dp_link_required(int pixel_clock, int bpp) { - struct drm_crtc *crtc = intel_dp->base.base.crtc; - struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - int bpp = 24; - - if (check_bpp) - bpp = check_bpp; - else if (intel_crtc) - bpp = intel_crtc->bpp; - return (pixel_clock * bpp + 9) / 10; } @@ -245,12 +236,11 @@ intel_dp_mode_valid(struct drm_connector *connector, return MODE_PANEL; } - mode_rate = intel_dp_link_required(intel_dp, mode->clock, 0); + mode_rate = intel_dp_link_required(mode->clock, 24); max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes); if (mode_rate > max_rate) { - mode_rate = intel_dp_link_required(intel_dp, - mode->clock, 18); + mode_rate = intel_dp_link_required(mode->clock, 18); if (mode_rate > max_rate) return MODE_CLOCK_HIGH; else @@ -683,7 +673,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, int lane_count, clock; int max_lane_count = intel_dp_max_lane_count(intel_dp); int max_clock = intel_dp_max_link_bw(intel_dp) == DP_LINK_BW_2_7 ? 1 : 0; - int bpp = mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 0; + int bpp = mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 24; static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 }; if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) { @@ -701,7 +691,7 @@ 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(intel_dp, mode->clock, bpp) + if (intel_dp_link_required(mode->clock, bpp) <= link_avail) { intel_dp->link_bw = bws[clock]; intel_dp->lane_count = lane_count; |