@@ -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);
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(-)