There is no need to reset controller every time, do this once in pdm_probe.
Signed-off-by: Sugar Zhang sugar.zhang@rock-chips.com ---
sound/soc/rockchip/rockchip_pdm.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/sound/soc/rockchip/rockchip_pdm.c b/sound/soc/rockchip/rockchip_pdm.c index 8c1be59..abbb6d7 100644 --- a/sound/soc/rockchip/rockchip_pdm.c +++ b/sound/soc/rockchip/rockchip_pdm.c @@ -183,9 +183,6 @@ static int rockchip_pdm_hw_params(struct snd_pcm_substream *substream, val); regmap_update_bits(pdm->regmap, PDM_DMA_CTRL, PDM_DMA_RDL_MSK, PDM_DMA_RDL(16)); - regmap_update_bits(pdm->regmap, PDM_SYSCONFIG, - PDM_RX_MASK | PDM_RX_CLR_MASK, - PDM_RX_STOP | PDM_RX_CLR_WR); }
return 0; @@ -355,6 +352,7 @@ static bool rockchip_pdm_volatile_reg(struct device *dev, unsigned int reg) { switch (reg) { case PDM_SYSCONFIG: + case PDM_FIFO_CTRL: case PDM_INT_CLR: case PDM_INT_ST: return true; @@ -438,6 +436,7 @@ static int rockchip_pdm_probe(struct platform_device *pdev) goto err_suspend; }
+ rockchip_pdm_rxctrl(pdm, 0); ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); if (ret) { dev_err(&pdev->dev, "could not register pcm: %d\n", ret);