kernel/linux.git/include/drm/i915_component.h, branch v4.6.4

drm/i915: Add get_eld audio component

2015-12-10T12:39:27+00:00

Implement a new i915_audio_component_ops, get_eld(). It's called by the audio driver to fetch the current audio status and ELD of the given HDMI/DP port. It returns the size of expected ELD bytes if it's valid, zero if no valid ELD is found, or a negative error code. The current state of audio on/off is stored in the given pointer, too. Note that the returned size isn't limited to the given max bytes. If the size is greater than the max bytes, it means that only a part of ELD has been copied back. For achieving this implementation, a new field audio_connector is added to struct intel_digital_port. It points to the connector assigned to the given digital port. It's set/reset at each audio enable/disable call in intel_audio.c, and protected with av_mutex. Reviewed-by: Daniel Vetter Signed-off-by: Takashi Iwai

drm/i915: Improve kernel-doc for i915_audio_component struct

2015-10-19T10:23:00+00:00

Signed-off-by: David Henningsson Link: http://patchwork.freedesktop.org/patch/msgid/1444987464-8657-1-git-send-email-david.henningsson@canonical.com Signed-off-by: Daniel Vetter

drm/i915: add kerneldoc for i915_audio_component

2015-10-07T14:05:37+00:00

Add the kerneldoc for i915_audio_component in i915_component.h Signed-off-by: Libin Yang Signed-off-by: Daniel Vetter

drm/i915: set proper N/CTS in modeset

2015-09-25T08:05:05+00:00

When modeset occurs and the TMDS frequency is set to some speical values, the N/CTS need to be set manually if audio is playing. Signed-off-by: Libin Yang Reviewed-by: Jani Nikula Signed-off-by: Takashi Iwai

drm/i915: Add audio sync_audio_rate callback

2015-09-25T08:04:40+00:00

Add the sync_audio_rate callback. With the callback, audio driver can trigger i915 driver to set the proper N/CTS or N/M based on different sample rates. Signed-off-by: Libin Yang Reviewed-by: Jani Nikula Signed-off-by: Takashi Iwai

drm/i915: Drop port_mst_index parameter from pin/eld callback

2015-09-03T10:09:03+00:00

The port_mst_index parameter was reserved for future use, but maintainers prefer to add it later when it is actually used. [Note: this is an update patch to commit [51e1d83cab99: drm/i915: Call audio pin/ELD notify function] where I mistakenly applied the older version. Jani and Daniel's review tags were to the latest version, so I add them below, too -- tiwai] Signed-off-by: David Henningsson Reviewed-by: Jani Nikula Acked-by: Daniel Vetter Signed-off-by: Takashi Iwai

drm/i915: Add audio pin sense / ELD callback

2015-09-02T09:30:44+00:00

This callback will be called by the i915 driver to notify the hda driver that its HDMI information needs to be refreshed, i e, that audio output is now available (or unavailable) - usually as a result of a monitor being plugged in (or unplugged). Signed-off-by: David Henningsson Reviewed-by: Jani Nikula Acked-by: Daniel Vetter Signed-off-by: Takashi Iwai

drm/i915/audio: add codec wakeup override enabled/disable callback

2015-05-05T12:44:19+00:00

Add support for enabling codec wakeup override signal to allow re-enumeration of the controller on SKL after resume from low power state. In SKL, HDMI/DP codec and PCH HD Audio Controller are in different power wells, so it's necessary to reset display audio codecs when power well on, otherwise display audio codecs will disappear when resume from low power state. Reset steps when power on: enable codec wakeup -> azx_init_chip() -> disable codec wakeup v3 by Jani: Simplify to only support toggling the appropriate chicken bit. v4 by Han: add explanation and specify the hw swquence. Signed-off-by: Lu, Han Signed-off-by: Jani Nikula Acked-by: Daniel Vetter Signed-off-by: Takashi Iwai

drm/i915: add component support

2015-01-12T01:48:20+00:00

Register a component to be used to interface with the snd_hda_intel driver. This is meant to replace the same interface that is currently based on module symbol lookup. v2: - change roles between the hda and i915 components (Daniel) - add the implementation to a new file (Jani) - use better namespacing (Jani) v3: - move the implementation to intel_audio.c (Daniel) - rename display_component to audio_component (Daniel) - add kerneldoc (Daniel) v4: - run forgotten git rm i915_component.c (Jani) Signed-off-by: Imre Deak Reviewed-by: Takashi Iwai Signed-off-by: Daniel Vetter