diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_hdmi.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index ebd91aa69dd2..7816b2a33fee 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -50,6 +50,7 @@ #include "intel_dp.h" #include "intel_gmbus.h" #include "intel_hdcp.h" +#include "intel_hdcp_regs.h" #include "intel_hdmi.h" #include "intel_lspcon.h" #include "intel_panel.h" @@ -1891,7 +1892,7 @@ int intel_hdmi_tmds_clock(int clock, int bpc, bool ycbcr420_output) * 1.5x for 12bpc * 1.25x for 10bpc */ - return clock * bpc / 8; + return DIV_ROUND_CLOSEST(clock * bpc, 8); } static bool intel_hdmi_source_bpc_possible(struct drm_i915_private *i915, int bpc) @@ -2001,6 +2002,15 @@ intel_hdmi_mode_valid(struct drm_connector *connector, clock *= 2; } + /* + * HDMI2.1 requires higher resolution modes like 8k60, 4K120 to be + * enumerated only if FRL is supported. Current platforms do not support + * FRL so prune the higher resolution modes that require doctclock more + * than 600MHz. + */ + if (clock > 600000) + return MODE_CLOCK_HIGH; + ycbcr_420_only = drm_mode_is_420_only(&connector->display_info, mode); status = intel_hdmi_mode_clock_valid(connector, clock, has_hdmi_sink, ycbcr_420_only); |