diff options
| author | Sugar Zhang <sugar.zhang@rock-chips.com> | 2019-04-03 21:40:48 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-04-04 15:04:25 +0700 |
| commit | 252163a66a06859f468ef1e00fa5a1f377b16eed (patch) | |
| tree | 8c7d8aba2a220b83e55a04e70ef237fbe85b2bef /sound/soc/rockchip | |
| parent | a7980cd212cef9002fe9683f440d27609d1aae37 (diff) | |
| download | linux-252163a66a06859f468ef1e00fa5a1f377b16eed.tar.bz2 | |
ASoC: rockchip: pdm: optimize clear logic
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>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/rockchip')
| -rw-r--r-- | sound/soc/rockchip/rockchip_pdm.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sound/soc/rockchip/rockchip_pdm.c b/sound/soc/rockchip/rockchip_pdm.c index 984d99889a65..eb5216dd7dbc 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; @@ -353,6 +350,7 @@ 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; @@ -436,6 +434,7 @@ 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); |