From: randerwang rander.wang@linux.intel.com
On some platforms such as Up Extreme all links are enabled but only one link can be used by external codec. Instead of exact match of two masks, first check whether link_mask of mach is subset of link_mask supported by hw and then go on searching link_adr.
Signed-off-by: randerwang rander.wang@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Guennadi Liakhovetski guennadi.liakhovetski@linux.intel.com Signed-off-by: Kai Vehmanen kai.vehmanen@linux.intel.com --- sound/soc/sof/intel/hda.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index 578ac7b036b0..63ca920c8e6e 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -1107,7 +1107,15 @@ static int hda_sdw_machine_select(struct snd_sof_dev *sdev) if (link_mask && !pdata->machine) { for (mach = pdata->desc->alt_machines; mach && mach->link_mask; mach++) { - if (mach->link_mask != link_mask) + /* + * On some platforms such as Up Extreme all links + * are enabled but only one link can be used by + * external codec. Instead of exact match of two masks, + * first check whether link_mask of mach is subset of + * link_mask supported by hw and then go on searching + * link_adr + */ + if (~link_mask & mach->link_mask) continue;
/* No need to match adr if there is no links defined */