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Diffstat (limited to 'sound/soc/sh/rcar/ssi.c')
-rw-r--r--sound/soc/sh/rcar/ssi.c98
1 files changed, 58 insertions, 40 deletions
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index f7df3b5e2985..46feddd78ee2 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -208,6 +208,46 @@ u32 rsnd_ssi_multi_slaves_runtime(struct rsnd_dai_stream *io)
return 0;
}
+unsigned int rsnd_ssi_clk_query(struct rsnd_priv *priv,
+ int param1, int param2, int *idx)
+{
+ int ssi_clk_mul_table[] = {
+ 1, 2, 4, 8, 16, 6, 12,
+ };
+ int j, ret;
+ unsigned int main_rate;
+
+ for (j = 0; j < ARRAY_SIZE(ssi_clk_mul_table); j++) {
+
+ /*
+ * It will set SSIWSR.CONT here, but SSICR.CKDV = 000
+ * with it is not allowed. (SSIWSR.WS_MODE with
+ * SSICR.CKDV = 000 is not allowed either).
+ * Skip it. See SSICR.CKDV
+ */
+ if (j == 0)
+ continue;
+
+ /*
+ * this driver is assuming that
+ * system word is 32bit x chan
+ * see rsnd_ssi_init()
+ */
+ main_rate = 32 * param1 * param2 * ssi_clk_mul_table[j];
+
+ ret = rsnd_adg_clk_query(priv, main_rate);
+ if (ret < 0)
+ continue;
+
+ if (idx)
+ *idx = j;
+
+ return main_rate;
+ }
+
+ return 0;
+}
+
static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod,
struct rsnd_dai_stream *io)
{
@@ -217,10 +257,7 @@ static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod,
struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
struct rsnd_mod *ssi_parent_mod = rsnd_io_to_mod_ssip(io);
int chan = rsnd_runtime_channel_for_ssi(io);
- int j, ret;
- int ssi_clk_mul_table[] = {
- 1, 2, 4, 8, 16, 6, 12,
- };
+ int idx, ret;
unsigned int main_rate;
unsigned int rate = rsnd_io_is_play(io) ?
rsnd_src_get_out_rate(priv, io) :
@@ -244,45 +281,25 @@ static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod,
return 0;
}
- /*
- * Find best clock, and try to start ADG
- */
- for (j = 0; j < ARRAY_SIZE(ssi_clk_mul_table); j++) {
-
- /*
- * It will set SSIWSR.CONT here, but SSICR.CKDV = 000
- * with it is not allowed. (SSIWSR.WS_MODE with
- * SSICR.CKDV = 000 is not allowed either).
- * Skip it. See SSICR.CKDV
- */
- if (j == 0)
- continue;
-
- /*
- * this driver is assuming that
- * system word is 32bit x chan
- * see rsnd_ssi_init()
- */
- main_rate = rate * 32 * chan * ssi_clk_mul_table[j];
-
- ret = rsnd_adg_ssi_clk_try_start(mod, main_rate);
- if (0 == ret) {
- ssi->cr_clk = FORCE | SWL_32 |
- SCKD | SWSD | CKDV(j);
- ssi->wsr = CONT;
+ main_rate = rsnd_ssi_clk_query(priv, rate, chan, &idx);
+ if (!main_rate) {
+ dev_err(dev, "unsupported clock rate\n");
+ return -EIO;
+ }
- ssi->rate = rate;
+ ret = rsnd_adg_ssi_clk_try_start(mod, main_rate);
+ if (ret < 0)
+ return ret;
- dev_dbg(dev, "%s[%d] outputs %u Hz\n",
- rsnd_mod_name(mod),
- rsnd_mod_id(mod), rate);
+ ssi->cr_clk = FORCE | SWL_32 | SCKD | SWSD | CKDV(idx);
+ ssi->wsr = CONT;
+ ssi->rate = rate;
- return 0;
- }
- }
+ dev_dbg(dev, "%s[%d] outputs %u Hz\n",
+ rsnd_mod_name(mod),
+ rsnd_mod_id(mod), rate);
- dev_err(dev, "unsupported clock rate\n");
- return -EIO;
+ return 0;
}
static void rsnd_ssi_master_clk_stop(struct rsnd_mod *mod,
@@ -897,7 +914,8 @@ static void rsnd_ssi_connect(struct rsnd_mod *mod,
type = types[i];
if (!rsnd_io_to_mod(io, type)) {
rsnd_dai_connect(mod, io, type);
- rsnd_set_slot(rdai, 2 * (i + 1), (i + 1));
+ rsnd_rdai_channels_set(rdai, (i + 1) * 2);
+ rsnd_rdai_ssi_lane_set(rdai, (i + 1));
return;
}
}