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

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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>
This commit is contained in:
Subhransu S. Prusty 2016-04-12 10:31:23 +05:30 committed by Mark Brown
parent b8af8b1d80
commit f0c8e1d9c4
1 changed files with 18 additions and 8 deletions
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18
sound/soc/intel/skylake/skl-topology.c
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@ -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
@ -249,13 +250,22 @@ 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) *
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;
mcfg->obs = (mcfg->out_fmt->s_freq / 1000) *
(mcfg->out_fmt->channels) *
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;
}