From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
SSI interrupt handler of R-Car sound driver will be called when DIRQ (= Data read/write timing for PIO) or UIRQ / OIRQ (= under/over run error). DIRQ "interrupt" doesn't occur when DMA transfer, but then, DIRQ "status bit" might occur. we need to ignore this DIRQ operation when DMA. Otherwise, driver will push/pop as PIO.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/sh/rcar/ssi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index d26634b..4b64612 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -384,13 +384,14 @@ static irqreturn_t rsnd_ssi_interrupt(int irq, void *data) struct rsnd_mod *mod = &ssi->mod; struct rsnd_priv *priv = rsnd_mod_to_priv(mod); struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); + int is_dma = rsnd_ssi_is_dma_mode(mod); u32 status = rsnd_mod_read(mod, SSISR);
if (!io) return IRQ_NONE;
/* PIO only */ - if (status & DIRQ) { + if (!is_dma && (status & DIRQ)) { struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); u32 *buf = (u32 *)(runtime->dma_area + rsnd_dai_pointer_offset(io, 0));