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Commit 12927a8f authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Mark Brown
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ASoC: rsnd: don't care under/over run error when PIO 



PIO is used only for checking data path / codec settings. And underrun
is very normal when PIO mode. Let's don't care about under/over run
error when PIO case. Otherwise, 1) too many HW restart happens, 2) some
sounds which need much data transfer can't play since it falls into
error detection method which was created for DMA transfer

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: default avatarKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 02299d98

sound/soc/sh/rcar/ssi.c

+9 −7
Original line number Diff line number Diff line
@@ -199,15 +199,17 @@ static void rsnd_ssi_hw_start(struct rsnd_ssi *ssi, 
		}

	}



	cr_mode = rsnd_ssi_is_dma_mode(&ssi->mod) ?

		DMEN :	/* DMA : enable DMA */

		DIEN;	/* PIO : enable Data interrupt */



	if (rsnd_ssi_is_dma_mode(&ssi->mod)) {

		cr_mode = UIEN | OIEN |	/* over/under run */

			  DMEN;		/* DMA : enable DMA */

	} else {

		cr_mode = DIEN;		/* PIO : enable Data interrupt */

	}



	cr  =	ssi->cr_own	|

		ssi->cr_clk	|

		cr_mode		|

		UIEN | OIEN | EN;

		EN;



	rsnd_mod_write(&ssi->mod, SSICR, cr);
@@ -452,8 +454,8 @@ static irqreturn_t rsnd_ssi_interrupt(int irq, void *data) 
		rsnd_dai_pointer_update(io, sizeof(*buf));

	}



	/* PIO / DMA */

	if (status & (UIRQ | OIRQ)) {

	/* DMA only */

	if (is_dma && (status & (UIRQ | OIRQ))) {

		struct device *dev = rsnd_priv_to_dev(priv);



		/*