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ALSA: hda: Add pplcllpl/u members to hdac_ext_stream

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The pplcllpl/u can be used to save the Link Connection Linear Link
Position register value to be used for compensation of the LLP register
value in case the counter is not reset (after pause/resume or
stop/start without closing the stream).

The LLP can be used along with PPHCLDP to calculate delay caused by the DSP
processing for HDA links.

Cc: stable@vger.kernel.org # 6.8
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://msgid.link/r/20240321130814.4412-17-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi 2024-03-21 15:08:13 +02:00 committed by Mark Brown
parent 0ea06680df
commit f9eeb6bb13
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1 changed files with 3 additions and 0 deletions
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3
include/sound/hdaudio_ext.h
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@ -56,6 +56,9 @@ struct hdac_ext_stream {
u32 pphcldpl; u32 pphcldpl;
u32 pphcldpu; u32 pphcldpu;
u32 pplcllpl;
u32 pplcllpu;
bool decoupled:1; bool decoupled:1;
bool link_locked:1; bool link_locked:1;
bool link_prepared; bool link_prepared;