From: Ville Syrjälä Date: Tue, 5 May 2015 14:06:27 +0000 (+0300) Subject: drm/i915: Double the port clock when using double clocked modes with 12bpc X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=3320e37f7ac1f4df90268f204fef490dacee7ca0;p=deliverable%2Flinux.git drm/i915: Double the port clock when using double clocked modes with 12bpc Currently we're forgetting to double the port clock when using double clocked modes with 12bpc on HDMI. We're only accounting for the 1.5x factor due to the 12bpc. So further double the 1.5x port clock when we have a double clocked mode. Unfortunately I don't have any displays that support both 12bpc and double clocked modes, so I was unable to test this. Signed-off-by: Ville Syrjälä Reviewed-by: Chandra Konduru Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 42fc50528190..00c4b40e0158 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -1242,6 +1242,7 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder, if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK) { pipe_config->pixel_multiplier = 2; + clock_12bpc *= 2; } if (intel_hdmi->color_range)