drm/i915: use pipe bpp when setting HDMI bpc

The Intel HDMI encoder can support 8bpc or 12bpc. Set the appropriate value based on the pipe bpp when configuring the output. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Keith Packard <keithp@keithp.com>

drm/i915: use pipe bpp when setting HDMI bpc
The Intel HDMI encoder can support 8bpc or 12bpc. Set the appropriate value based on the pipe bpp when configuring the output. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Keith Packard <keithp@keithp.com>
Jesse Barnes · Keith Packard
1 parent 858fa03527
Showing 1 changed file with 5 additions and 0 deletions Side-by-side Diff
drivers/gpu/drm/i915/intel_hdmi.c
@@ -131,6 +131,11 @@
 	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
 		sdvox |= SDVO_HSYNC_ACTIVE_HIGH;
  
+	if (intel_crtc->bpp > 24)
+		sdvox |= COLOR_FORMAT_12bpc;
+	else
+		sdvox |= COLOR_FORMAT_8bpc;
+
 	/* Required on CPT */
 	if (intel_hdmi->has_hdmi_sink && HAS_PCH_CPT(dev))
 		sdvox |= HDMI_MODE_SELECT;
...	...	@@ -131,6 +131,11 @@
131	131	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
132	132	sdvox \|= SDVO_HSYNC_ACTIVE_HIGH;
133	133
	134	+ if (intel_crtc->bpp > 24)
	135	+ sdvox \|= COLOR_FORMAT_12bpc;
	136	+ else
	137	+ sdvox \|= COLOR_FORMAT_8bpc;
	138	+
134	139	/* Required on CPT */
135	140	if (intel_hdmi->has_hdmi_sink && HAS_PCH_CPT(dev))
136	141	sdvox \|= HDMI_MODE_SELECT;