ASoC: Intel: Skylake: Fix ibs/obs calc for non-integral sampling rates

FW expects sampling rate rounded up to next higher integer value
when calculating ibs/obs. For example for 44.1k, it should be
rounded up to 45 to calculate ibs/obs.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 19 insertions, 9 deletions

diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index 5a85f3a4699b..cdb78b7e5a14 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -239,6 +239,7 @@ static void skl_tplg_update_buffer_size(struct skl_sst *ctx,
 {
         int multiplier = 1;
         struct skl_module_fmt *in_fmt, *out_fmt;
+        int in_rate, out_rate;
 
 
         /* Since fixups is applied to pin 0 only, ibs, obs needs
@@ -249,15 +250,24 @@ static void skl_tplg_update_buffer_size(struct skl_sst *ctx,
 
         if (mcfg->m_type == SKL_MODULE_TYPE_SRCINT)
                 multiplier = 5;
-        mcfg->ibs = (in_fmt->s_freq / 1000) *
-                                (mcfg->in_fmt->channels) *
-                                (mcfg->in_fmt->bit_depth >> 3) *
-                                multiplier;
-
-        mcfg->obs = (mcfg->out_fmt->s_freq / 1000) *
-                                (mcfg->out_fmt->channels) *
-                                (mcfg->out_fmt->bit_depth >> 3) *
-                                multiplier;
+
+        if (in_fmt->s_freq % 1000)
+                in_rate = (in_fmt->s_freq / 1000) + 1;
+        else
+                in_rate = (in_fmt->s_freq / 1000);
+
+        mcfg->ibs = in_rate * (mcfg->in_fmt->channels) *
+                        (mcfg->in_fmt->bit_depth >> 3) *
+                        multiplier;
+
+        if (mcfg->out_fmt->s_freq % 1000)
+                out_rate = (mcfg->out_fmt->s_freq / 1000) + 1;
+        else
+                out_rate = (mcfg->out_fmt->s_freq / 1000);
+
+        mcfg->obs = out_rate * (mcfg->out_fmt->channels) *
+                        (mcfg->out_fmt->bit_depth >> 3) *
+                        multiplier;
 }
 
 static int skl_tplg_update_be_blob(struct snd_soc_dapm_widget *w,