Lines Matching full:pdm

3  * Rockchip PDM ALSA SoC Digital Audio Interface(DAI)  driver
77 static unsigned int get_pdm_clk(struct rk_pdm_dev *pdm, unsigned int sr,
93 rate = clk_round_rate(pdm->clk, clkref[i].clk);
103 clk = clk_round_rate(pdm->clk, PDM_SIGNOFF_CLK_RATE);
179 static void rockchip_pdm_rxctrl(struct rk_pdm_dev *pdm, int on)
182 regmap_update_bits(pdm->regmap, PDM_DMA_CTRL,
184 regmap_update_bits(pdm->regmap, PDM_SYSCONFIG,
187 regmap_update_bits(pdm->regmap, PDM_DMA_CTRL,
189 regmap_update_bits(pdm->regmap, PDM_SYSCONFIG,
199 struct rk_pdm_dev *pdm = to_info(dai);
211 clk_rate = get_pdm_clk(pdm, samplerate, &clk_src, &clk_out);
215 ret = clk_set_rate(pdm->clk, clk_src);
219 if (pdm->version == RK_PDM_RK3308 ||
220 pdm->version == RK_PDM_RV1126) {
228 regmap_update_bits_check(pdm->regmap, PDM_CTRL1,
233 reset_control_assert(pdm->reset);
234 reset_control_deassert(pdm->reset);
235 rockchip_pdm_rxctrl(pdm, 0);
244 regmap_update_bits(pdm->regmap, PDM_CLK_CTRL,
249 if (pdm->version == RK_PDM_RV1126) {
251 regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_CIC_RATIO_MSK, val);
253 regmap_update_bits(pdm->regmap, PDM_CTRL0,
257 regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_DS_RATIO_MSK, val);
260 regmap_update_bits(pdm->regmap, PDM_HPF_CTRL,
262 regmap_update_bits(pdm->regmap, PDM_HPF_CTRL,
264 regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_CLK_EN, PDM_CLK_EN);
265 if (pdm->version != RK_PDM_RK3229)
266 regmap_update_bits(pdm->regmap, PDM_CTRL0,
304 dev_err(pdm->dev, "invalid channel: %d\n",
309 regmap_update_bits(pdm->regmap, PDM_CTRL0,
313 regmap_update_bits(pdm->regmap, PDM_DMA_CTRL, PDM_DMA_RDL_MSK,
322 struct rk_pdm_dev *pdm = to_info(cpu_dai);
338 regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, mask, val);
347 struct rk_pdm_dev *pdm = to_info(dai);
355 rockchip_pdm_rxctrl(pdm, 1);
361 rockchip_pdm_rxctrl(pdm, 0);
373 struct rk_pdm_dev *pdm = to_info(dai);
375 snd_soc_dai_dma_data_set_capture(dai, &pdm->capture_dma_data);
406 .name = "rockchip-pdm",
412 struct rk_pdm_dev *pdm = dev_get_drvdata(dev);
414 clk_disable_unprepare(pdm->clk);
415 clk_disable_unprepare(pdm->hclk);
422 struct rk_pdm_dev *pdm = dev_get_drvdata(dev);
425 ret = clk_prepare_enable(pdm->clk);
427 dev_err(pdm->dev, "clock enable failed %d\n", ret);
431 ret = clk_prepare_enable(pdm->hclk);
433 clk_disable_unprepare(pdm->clk);
434 dev_err(pdm->dev, "hclock enable failed %d\n", ret);
528 { .compatible = "rockchip,pdm",
530 { .compatible = "rockchip,px30-pdm",
532 { .compatible = "rockchip,rk1808-pdm",
534 { .compatible = "rockchip,rk3308-pdm",
536 { .compatible = "rockchip,rk3568-pdm",
538 { .compatible = "rockchip,rv1126-pdm",
544 static int rockchip_pdm_path_parse(struct rk_pdm_dev *pdm, struct device_node *node)
566 regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, msk, val);
574 struct rk_pdm_dev *pdm;
579 pdm = devm_kzalloc(&pdev->dev, sizeof(*pdm), GFP_KERNEL);
580 if (!pdm)
583 pdm->version = (enum rk_pdm_version)device_get_match_data(&pdev->dev);
584 if (pdm->version == RK_PDM_RK3308) {
585 pdm->reset = devm_reset_control_get(&pdev->dev, "pdm-m");
586 if (IS_ERR(pdm->reset))
587 return PTR_ERR(pdm->reset);
594 pdm->regmap = devm_regmap_init_mmio(&pdev->dev, regs,
596 if (IS_ERR(pdm->regmap))
597 return PTR_ERR(pdm->regmap);
599 pdm->capture_dma_data.addr = res->start + PDM_RXFIFO_DATA;
600 pdm->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
601 pdm->capture_dma_data.maxburst = PDM_DMA_BURST_SIZE;
603 pdm->dev = &pdev->dev;
604 dev_set_drvdata(&pdev->dev, pdm);
606 pdm->clk = devm_clk_get(&pdev->dev, "pdm_clk");
607 if (IS_ERR(pdm->clk))
608 return PTR_ERR(pdm->clk);
610 pdm->hclk = devm_clk_get(&pdev->dev, "pdm_hclk");
611 if (IS_ERR(pdm->hclk))
612 return PTR_ERR(pdm->hclk);
614 ret = clk_prepare_enable(pdm->hclk);
634 rockchip_pdm_rxctrl(pdm, 0);
636 ret = rockchip_pdm_path_parse(pdm, node);
654 clk_disable_unprepare(pdm->hclk);
661 struct rk_pdm_dev *pdm = dev_get_drvdata(&pdev->dev);
667 clk_disable_unprepare(pdm->clk);
668 clk_disable_unprepare(pdm->hclk);
673 struct rk_pdm_dev *pdm = dev_get_drvdata(dev);
675 regcache_mark_dirty(pdm->regmap);
682 struct rk_pdm_dev *pdm = dev_get_drvdata(dev);
689 ret = regcache_sync(pdm->regmap);
706 .name = "rockchip-pdm",
715 MODULE_DESCRIPTION("Rockchip PDM Controller Driver");