The patch ASoC: rockchip: pdm: optimize clear logic has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 252163a66a06859f468ef1e00fa5a1f377b16eed Mon Sep 17 00:00:00 2001 From: Sugar Zhang <sugar.zhang@xxxxxxxxxxxxxx> Date: Wed, 3 Apr 2019 21:40:48 +0800 Subject: [PATCH] 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@xxxxxxxxxxxxxx> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> --- 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 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); -- 2.20.1 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
