Default channel map is set for 2 channels. Fix the channel map
based on runtime params to support multichannel.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@xxxxxxxxx>
Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
---
sound/soc/intel/skylake/skl-topology.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index cdb78b7..1f4fe0e 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -154,13 +154,32 @@ static void skl_dump_mconfig(struct skl_sst *ctx,
dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->out_fmt[0].ch_cfg);
}
+static void skl_tplg_update_chmap(struct skl_module_fmt *fmt, int chs)
+{
+ int slot_map = 0xFFFFFFFF;
+ int start_slot = 0;
+ int i;
+
+ for (i = 0; i < chs; i++) {
+ /*
+ * For 2 channels with starting slot as 0, slot map will
+ * look like 0xFFFFFF10.
+ */
+ slot_map &= (~(0xF << (4 * i)) | (start_slot << (4 * i)));
+ start_slot++;
+ }
+ fmt->ch_map = slot_map;
+}
+
static void skl_tplg_update_params(struct skl_module_fmt *fmt,
struct skl_pipe_params *params, int fixup)
{
if (fixup & SKL_RATE_FIXUP_MASK)
fmt->s_freq = params->s_freq;
- if (fixup & SKL_CH_FIXUP_MASK)
+ if (fixup & SKL_CH_FIXUP_MASK) {
fmt->channels = params->ch;
+ skl_tplg_update_chmap(fmt, fmt->channels);
+ }
if (fixup & SKL_FMT_FIXUP_MASK) {
fmt->valid_bit_depth = skl_get_bit_depth(params->s_fmt);
--
1.9.1
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