1 // SPDX-License-Identifier: GPL-2.0-only
90 		if ((div & (div - 1)) == 0) {  in get_pdm_clk()
92 			rate = clk_round_rate(pdm->clk, clkref[i].clk);  in get_pdm_clk()
102 		clk = clk_round_rate(pdm->clk, PDM_SIGNOFF_CLK_RATE);  in get_pdm_clk()
132 		regmap_update_bits(pdm->regmap, PDM_DMA_CTRL,  in rockchip_pdm_rxctrl()
134 		regmap_update_bits(pdm->regmap, PDM_SYSCONFIG,  in rockchip_pdm_rxctrl()
137 		regmap_update_bits(pdm->regmap, PDM_DMA_CTRL,  in rockchip_pdm_rxctrl()
139 		regmap_update_bits(pdm->regmap, PDM_SYSCONFIG,  in rockchip_pdm_rxctrl()
157 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)  in rockchip_pdm_hw_params()
163 		return -EINVAL;  in rockchip_pdm_hw_params()
165 	ret = clk_set_rate(pdm->clk, clk_src);  in rockchip_pdm_hw_params()
167 		return -EINVAL;  in rockchip_pdm_hw_params()
169 	if (pdm->version == RK_PDM_RK3308) {  in rockchip_pdm_hw_params()
171 					    GENMASK(16 - 1, 0),  in rockchip_pdm_hw_params()
172 					    GENMASK(16 - 1, 0),  in rockchip_pdm_hw_params()
177 		regmap_update_bits_check(pdm->regmap, PDM_CTRL1,  in rockchip_pdm_hw_params()
182 			reset_control_assert(pdm->reset);  in rockchip_pdm_hw_params()
183 			reset_control_deassert(pdm->reset);  in rockchip_pdm_hw_params()
192 			return -EINVAL;  in rockchip_pdm_hw_params()
193 		regmap_update_bits(pdm->regmap, PDM_CLK_CTRL,  in rockchip_pdm_hw_params()
198 	regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_DS_RATIO_MSK, val);  in rockchip_pdm_hw_params()
199 	regmap_update_bits(pdm->regmap, PDM_HPF_CTRL,  in rockchip_pdm_hw_params()
201 	regmap_update_bits(pdm->regmap, PDM_HPF_CTRL,  in rockchip_pdm_hw_params()
203 	regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, PDM_CLK_EN, PDM_CLK_EN);  in rockchip_pdm_hw_params()
204 	if (pdm->version != RK_PDM_RK3229)  in rockchip_pdm_hw_params()
205 		regmap_update_bits(pdm->regmap, PDM_CTRL0,  in rockchip_pdm_hw_params()
226 		return -EINVAL;  in rockchip_pdm_hw_params()
243 		dev_err(pdm->dev, "invalid channel: %d\n",  in rockchip_pdm_hw_params()
245 		return -EINVAL;  in rockchip_pdm_hw_params()
248 	regmap_update_bits(pdm->regmap, PDM_CTRL0,  in rockchip_pdm_hw_params()
252 	regmap_update_bits(pdm->regmap, PDM_DMA_CTRL, PDM_DMA_RDL_MSK,  in rockchip_pdm_hw_params()
262 	unsigned int mask = 0, val = 0;  in rockchip_pdm_set_fmt()  local
264 	mask = PDM_CKP_MSK;  in rockchip_pdm_set_fmt()
273 		return -EINVAL;  in rockchip_pdm_set_fmt()
276 	pm_runtime_get_sync(cpu_dai->dev);  in rockchip_pdm_set_fmt()
277 	regmap_update_bits(pdm->regmap, PDM_CLK_CTRL, mask, val);  in rockchip_pdm_set_fmt()
278 	pm_runtime_put(cpu_dai->dev);  in rockchip_pdm_set_fmt()
293 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)  in rockchip_pdm_trigger()
299 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)  in rockchip_pdm_trigger()
303 		ret = -EINVAL;  in rockchip_pdm_trigger()
314 	dai->capture_dma_data = &pdm->capture_dma_data;  in rockchip_pdm_dai_probe()
345 	.name = "rockchip-pdm",
352 	clk_disable_unprepare(pdm->clk);  in rockchip_pdm_runtime_suspend()
353 	clk_disable_unprepare(pdm->hclk);  in rockchip_pdm_runtime_suspend()
363 	ret = clk_prepare_enable(pdm->clk);  in rockchip_pdm_runtime_resume()
365 		dev_err(pdm->dev, "clock enable failed %d\n", ret);  in rockchip_pdm_runtime_resume()
369 	ret = clk_prepare_enable(pdm->hclk);  in rockchip_pdm_runtime_resume()
371 		dev_err(pdm->dev, "hclock enable failed %d\n", ret);  in rockchip_pdm_runtime_resume()
466 	{ .compatible = "rockchip,px30-pdm",
468 	{ .compatible = "rockchip,rk1808-pdm",
470 	{ .compatible = "rockchip,rk3308-pdm",
478 	const struct of_device_id *match;  in rockchip_pdm_probe()  local
484 	pdm = devm_kzalloc(&pdev->dev, sizeof(*pdm), GFP_KERNEL);  in rockchip_pdm_probe()
486 		return -ENOMEM;  in rockchip_pdm_probe()
488 	match = of_match_device(rockchip_pdm_match, &pdev->dev);  in rockchip_pdm_probe()
489 	if (match)  in rockchip_pdm_probe()
490 		pdm->version = (enum rk_pdm_version)match->data;  in rockchip_pdm_probe()
492 	if (pdm->version == RK_PDM_RK3308) {  in rockchip_pdm_probe()
493 		pdm->reset = devm_reset_control_get(&pdev->dev, "pdm-m");  in rockchip_pdm_probe()
494 		if (IS_ERR(pdm->reset))  in rockchip_pdm_probe()
495 			return PTR_ERR(pdm->reset);  in rockchip_pdm_probe()
499 	regs = devm_ioremap_resource(&pdev->dev, res);  in rockchip_pdm_probe()
503 	pdm->regmap = devm_regmap_init_mmio(&pdev->dev, regs,  in rockchip_pdm_probe()
505 	if (IS_ERR(pdm->regmap))  in rockchip_pdm_probe()
506 		return PTR_ERR(pdm->regmap);  in rockchip_pdm_probe()
508 	pdm->capture_dma_data.addr = res->start + PDM_RXFIFO_DATA;  in rockchip_pdm_probe()
509 	pdm->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;  in rockchip_pdm_probe()
510 	pdm->capture_dma_data.maxburst = PDM_DMA_BURST_SIZE;  in rockchip_pdm_probe()
512 	pdm->dev = &pdev->dev;  in rockchip_pdm_probe()
513 	dev_set_drvdata(&pdev->dev, pdm);  in rockchip_pdm_probe()
515 	pdm->clk = devm_clk_get(&pdev->dev, "pdm_clk");  in rockchip_pdm_probe()
516 	if (IS_ERR(pdm->clk))  in rockchip_pdm_probe()
517 		return PTR_ERR(pdm->clk);  in rockchip_pdm_probe()
519 	pdm->hclk = devm_clk_get(&pdev->dev, "pdm_hclk");  in rockchip_pdm_probe()
520 	if (IS_ERR(pdm->hclk))  in rockchip_pdm_probe()
521 		return PTR_ERR(pdm->hclk);  in rockchip_pdm_probe()
523 	ret = clk_prepare_enable(pdm->hclk);  in rockchip_pdm_probe()
527 	pm_runtime_enable(&pdev->dev);  in rockchip_pdm_probe()
528 	if (!pm_runtime_enabled(&pdev->dev)) {  in rockchip_pdm_probe()
529 		ret = rockchip_pdm_runtime_resume(&pdev->dev);  in rockchip_pdm_probe()
534 	ret = devm_snd_soc_register_component(&pdev->dev,  in rockchip_pdm_probe()
539 		dev_err(&pdev->dev, "could not register dai: %d\n", ret);  in rockchip_pdm_probe()
544 	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);  in rockchip_pdm_probe()
546 		dev_err(&pdev->dev, "could not register pcm: %d\n", ret);  in rockchip_pdm_probe()
553 	if (!pm_runtime_status_suspended(&pdev->dev))  in rockchip_pdm_probe()
554 		rockchip_pdm_runtime_suspend(&pdev->dev);  in rockchip_pdm_probe()
556 	pm_runtime_disable(&pdev->dev);  in rockchip_pdm_probe()
558 	clk_disable_unprepare(pdm->hclk);  in rockchip_pdm_probe()
565 	struct rk_pdm_dev *pdm = dev_get_drvdata(&pdev->dev);  in rockchip_pdm_remove()
567 	pm_runtime_disable(&pdev->dev);  in rockchip_pdm_remove()
568 	if (!pm_runtime_status_suspended(&pdev->dev))  in rockchip_pdm_remove()
569 		rockchip_pdm_runtime_suspend(&pdev->dev);  in rockchip_pdm_remove()
571 	clk_disable_unprepare(pdm->clk);  in rockchip_pdm_remove()
572 	clk_disable_unprepare(pdm->hclk);  in rockchip_pdm_remove()
582 	regcache_mark_dirty(pdm->regmap);  in rockchip_pdm_suspend()
598 	ret = regcache_sync(pdm->regmap);  in rockchip_pdm_resume()
616 		.name = "rockchip-pdm",
624 MODULE_AUTHOR("Sugar <sugar.zhang@rock-chips.com>");