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@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)) {