drm/i915: Track has_audio in the pipe config
Including state readout and cross-checking. This allows us to get rid
of crtc->eld_vld on hsw+. It also means that fastboot will be unhappy
if the BIOS hasn't set up the audio routing like we want it too.
Wrt fastboot and external screens I see a few options:
- Don't.
- Try to fix up eld, infoframes and audio settings after the fact. But
that means some pretty extensive reworking of our code which
currently does all this while the pipe/port is still off.
I won't bother with converting SDVO over to this because the audio
support for SDVO is very lacking:
- We don't update the eld.
- We don't update the audio state on the sdvo encoder.
- We don't check whether the platform can even feed audio to the sdvo
encoder.
I've converted hdmi, dp & ddi all in one go since ddi needs both hdmi
and dp converted and so doing it step-by-step would have required a
few intermediate hacks.
Reviewed-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 9c96985..0894ade 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -658,7 +658,7 @@
if (crtc->config.has_hdmi_sink)
hdmi_val |= HDMI_MODE_SELECT_HDMI;
- if (intel_hdmi->has_audio) {
+ if (crtc->config.has_audio) {
WARN_ON(!crtc->config.has_hdmi_sink);
DRM_DEBUG_DRIVER("Enabling HDMI audio on pipe %c\n",
pipe_name(crtc->pipe));
@@ -726,6 +726,9 @@
if (tmp & HDMI_MODE_SELECT_HDMI)
pipe_config->has_hdmi_sink = true;
+ if (tmp & HDMI_MODE_SELECT_HDMI)
+ pipe_config->has_audio = true;
+
pipe_config->adjusted_mode.flags |= flags;
if ((tmp & SDVO_COLOR_FORMAT_MASK) == HDMI_COLOR_FORMAT_12bpc)
@@ -748,7 +751,7 @@
u32 temp;
u32 enable_bits = SDVO_ENABLE;
- if (intel_hdmi->has_audio)
+ if (intel_crtc->config.has_audio)
enable_bits |= SDVO_AUDIO_ENABLE;
temp = I915_READ(intel_hdmi->hdmi_reg);
@@ -919,6 +922,9 @@
if (HAS_PCH_SPLIT(dev) && !HAS_DDI(dev))
pipe_config->has_pch_encoder = true;
+ if (pipe_config->has_hdmi_sink && intel_hdmi->has_audio)
+ pipe_config->has_audio = true;
+
/*
* HDMI is either 12 or 8, so if the display lets 10bpc sneak
* through, clamp it down. Note that g4x/vlv don't support 12bpc hdmi