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ASoC: rsnd: ssi: remove unnesessary period_pos

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period_pos can always be calculated by byte_pos and
byte_per_period, there is no reason to maintain this
variable in rsnd_dai_stream.

This patch removes period_pos from rsnd_ssi and calculates
next_period_byte with consideration of actual byte_pos value.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jiada Wang 2017-12-07 22:15:39 -08:00 committed by Mark Brown
parent c046010a83
commit 2e2d53da81
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GPG key ID: 24D68B725D5487D0
1 changed files with 3 additions and 6 deletions
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9
sound/soc/sh/rcar/ssi.c
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@ -80,7 +80,6 @@ struct rsnd_ssi {
unsigned int usrcnt;
int byte_pos;
int period_pos;
int byte_per_period;
int next_period_byte;
};
@ -421,7 +420,6 @@ static void rsnd_ssi_pointer_init(struct rsnd_mod *mod,
struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
ssi->byte_pos = 0;
ssi->period_pos = 0;
ssi->byte_per_period = runtime->period_size *
runtime->channels *
samples_to_bytes(runtime, 1);
@ -453,13 +451,12 @@ static bool rsnd_ssi_pointer_update(struct rsnd_mod *mod,
if (byte_pos >= ssi->next_period_byte) {
struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
int period_pos = byte_pos / ssi->byte_per_period;
ssi->period_pos++;
ssi->next_period_byte += ssi->byte_per_period;
ssi->next_period_byte = (period_pos + 1) * ssi->byte_per_period;
if (ssi->period_pos >= runtime->periods) {
if (period_pos >= runtime->periods) {
byte_pos = 0;
ssi->period_pos = 0;
ssi->next_period_byte = ssi->byte_per_period;
}