[PATCH v2 0/9] Add get_eld audio component for i915/HD-audio

Takashi Iwai
2015-12-01T16:10:04Z

Hi,

this is a revised patchset to add get_eld op to audio component for
communicating more directly between i915 and HD-audio. Currently, the
HDMI/DP audio status and ELD are notified and obtained via the
hardware-level communication over HD-audio unsolicited event and
verbs although the graphics driver holds the exactly same
information. As we already have a notification via audio component,
this is another step forward; the audio driver fetches directly the
audio status and ELD via the new component op.

The patch still doesn't follow the recent kernel doc comment changes
in i915_component.h. I'll rebase once when I get the steady branch in
drm tree.

The current patchset is found in sound git tree test/hdmi-jack
branch.

Takashi

===

v1->v2:
* Use modeset lock for get_eld lock, drop av mutex
* Return the expected size from get_eld, not the copied size
* Add reverse map from a port number to the encoder
* Deferred invocation of get_eld from the eld_notify in HDA side
* A bit more code refactoring in HDA side
* Move audio component accessors to hdac_i915.c

Takashi Iwai (9):
drm/i915: Remove superfluous NULL check
drm/i915: Add get_eld audio component
drm/i915: refactoring audio component functions
drm/i915: Add reverse mapping between port and intel_encoder
ALSA: hda - Split ELD update code from hdmi_present_sense()
ALSA: hda - Use component ops for i915 HDMI/DP audio jack handling
ALSA: hda - Do zero-clear in snd_hdmi_parse_eld() itself
ALSA: hda - Skip ELD notification during PM process
ALSA: hda - Move audio component accesses to hdac_i915.c

drivers/gpu/drm/i915/i915_drv.h | 2 +
drivers/gpu/drm/i915/intel_audio.c | 59 ++++++---
drivers/gpu/drm/i915/intel_ddi.c | 1 +
drivers/gpu/drm/i915/intel_dp.c | 1 +
drivers/gpu/drm/i915/intel_drv.h | 1 +
drivers/gpu/drm/i915/intel_hdmi.c | 2 +
include/drm/i915_component.h | 6 +
include/sound/hda_i915.h | 14 +++
sound/hda/hdac_i915.c | 66 +++++++++++
sound/pci/hda/hda_eld.c | 1 +
sound/pci/hda/patch_hdmi.c | 237 +++++++++++++++++++++++++------------
11 files changed, 294 insertions(+), 96 deletions(-)

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2.6.3