ASoC: rsnd: don't care under/over run error when PIO (12927a8f) · Commits · 戴 / test

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:

Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by:

Keita Kobayashi <keita.kobayashi.ym@renesas.com> Signed-off-by:

Mark Brown <broonie@kernel.org>

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);

		/*

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