[alsa-devel] [PATCH v2 01/10] ASoC: sun4i-i2s: Increase DMA max burst to 8
Mylène Josserand
mylene.josserand at free-electrons.com
Tue Jan 17 15:02:21 CET 2017
As done previously for sun4i-codec, the DMA maxburst of 4
is not supported by every SoCs so the DMA controller engine
returns "unsupported value".
As a maxburst of 8 is supported by all variants, this patch
increases it to 8.
For more details, see commit from Chen-Yu Tsai:
commit 730e2dd0cbc7 ("ASoC: sun4i-codec: Increase DMA max burst to 8")
Signed-off-by: Mylène Josserand <mylene.josserand at free-electrons.com>
---
sound/soc/sunxi/sun4i-i2s.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index f24d19526603..4237323ef594 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -694,10 +694,10 @@ static int sun4i_i2s_probe(struct platform_device *pdev)
}
i2s->playback_dma_data.addr = res->start + SUN4I_I2S_FIFO_TX_REG;
- i2s->playback_dma_data.maxburst = 4;
+ i2s->playback_dma_data.maxburst = 8;
i2s->capture_dma_data.addr = res->start + SUN4I_I2S_FIFO_RX_REG;
- i2s->capture_dma_data.maxburst = 4;
+ i2s->capture_dma_data.maxburst = 8;
pm_runtime_enable(&pdev->dev);
if (!pm_runtime_enabled(&pdev->dev)) {
--
2.11.0
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