ALSA: pcm: don't override timestamp unconditionally
timestamp in RUNNING mode is already taken in update_hw_ptr routine, getting a new timestamp introduces offset between hw_ptr, audio_tstamp and system time Add else condition to read timestamp as fallback and only when enabled Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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