From: Clint Taylor clinton.a.taylor@intel.com
Enable 2x pixel replication for modes the mode flag DBLCLK to double horizontal timings and pixel clock across TMDS.
Signed-off-by: Clint Taylor clinton.a.taylor@intel.com Cc: Daniel Vetter daniel.vetter@ffwll.ch Cc: Ville Syrjälä ville.syrjala@linux.intel.com Reviewed-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/intel_hdmi.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 9169786..9695768 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -864,10 +864,15 @@ static enum drm_mode_status intel_hdmi_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { - if (mode->clock > hdmi_portclock_limit(intel_attached_hdmi(connector), - true)) + int clock = mode->clock; + + if (mode->flags & DRM_MODE_FLAG_DBLCLK) + clock *= 2; + + if (clock > hdmi_portclock_limit(intel_attached_hdmi(connector), + true)) return MODE_CLOCK_HIGH; - if (mode->clock < 20000) + if (clock < 20000) return MODE_CLOCK_LOW;
if (mode->flags & DRM_MODE_FLAG_DBLSCAN) @@ -921,6 +926,10 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder, intel_hdmi->color_range = 0; }
+ if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK) { + pipe_config->pixel_multiplier = 2; + } + if (intel_hdmi->color_range) pipe_config->limited_color_range = true;