1 // SPDX-License-Identifier: GPL-2.0+
5 #include <linux/clk-provider.h>
18 #include <linux/dma-mapping.h>
21 #include "imx-pcm.h"
26 	struct fsl_aud2htx *aud2htx = snd_soc_dai_get_drvdata(dai);  in fsl_aud2htx_trigger()  local
32 		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL,  in fsl_aud2htx_trigger()
34 		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,  in fsl_aud2htx_trigger()
40 		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,  in fsl_aud2htx_trigger()
42 		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL,  in fsl_aud2htx_trigger()
46 		return -EINVAL;  in fsl_aud2htx_trigger()
53 	struct fsl_aud2htx *aud2htx = dev_get_drvdata(cpu_dai->dev);  in fsl_aud2htx_dai_probe()  local
56 	regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,  in fsl_aud2htx_dai_probe()
60 	regmap_update_bits(aud2htx->regmap, AUD2HTX_IRQ_MASK,  in fsl_aud2htx_dai_probe()
69 	regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,  in fsl_aud2htx_dai_probe()
72 	regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,  in fsl_aud2htx_dai_probe()
76 	snd_soc_dai_init_dma_data(cpu_dai, &aud2htx->dma_params_tx,  in fsl_aud2htx_dai_probe()
77 				  &aud2htx->dma_params_rx);  in fsl_aud2htx_dai_probe()
89 		.stream_name = "CPU-Playback",
105 	.name			= "fsl-aud2htx",
176 	{ .compatible = "fsl,imx8mp-aud2htx",},
188 	struct fsl_aud2htx *aud2htx;  in fsl_aud2htx_probe()  local
193 	aud2htx = devm_kzalloc(&pdev->dev, sizeof(*aud2htx), GFP_KERNEL);  in fsl_aud2htx_probe()
194 	if (!aud2htx)  in fsl_aud2htx_probe()
195 		return -ENOMEM;  in fsl_aud2htx_probe()
197 	aud2htx->pdev = pdev;  in fsl_aud2htx_probe()
203 	aud2htx->regmap = devm_regmap_init_mmio(&pdev->dev, regs,  in fsl_aud2htx_probe()
205 	if (IS_ERR(aud2htx->regmap)) {  in fsl_aud2htx_probe()
206 		dev_err(&pdev->dev, "failed to init regmap");  in fsl_aud2htx_probe()
207 		return PTR_ERR(aud2htx->regmap);  in fsl_aud2htx_probe()
214 	ret = devm_request_irq(&pdev->dev, irq, fsl_aud2htx_isr, 0,  in fsl_aud2htx_probe()
215 			       dev_name(&pdev->dev), aud2htx);  in fsl_aud2htx_probe()
217 		dev_err(&pdev->dev, "failed to claim irq %u: %d\n", irq, ret);  in fsl_aud2htx_probe()
221 	aud2htx->bus_clk = devm_clk_get(&pdev->dev, "bus");  in fsl_aud2htx_probe()
222 	if (IS_ERR(aud2htx->bus_clk)) {  in fsl_aud2htx_probe()
223 		dev_err(&pdev->dev, "failed to get mem clock\n");  in fsl_aud2htx_probe()
224 		return PTR_ERR(aud2htx->bus_clk);  in fsl_aud2htx_probe()
227 	aud2htx->dma_params_tx.chan_name = "tx";  in fsl_aud2htx_probe()
228 	aud2htx->dma_params_tx.maxburst = AUD2HTX_MAXBURST;  in fsl_aud2htx_probe()
229 	aud2htx->dma_params_tx.addr = res->start + AUD2HTX_WR;  in fsl_aud2htx_probe()
231 	platform_set_drvdata(pdev, aud2htx);  in fsl_aud2htx_probe()
232 	pm_runtime_enable(&pdev->dev);  in fsl_aud2htx_probe()
234 	regcache_cache_only(aud2htx->regmap, true);  in fsl_aud2htx_probe()
240 	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);  in fsl_aud2htx_probe()
242 		dev_err(&pdev->dev, "failed to pcm register\n");  in fsl_aud2htx_probe()
243 		pm_runtime_disable(&pdev->dev);  in fsl_aud2htx_probe()
247 	ret = devm_snd_soc_register_component(&pdev->dev,  in fsl_aud2htx_probe()
251 		dev_err(&pdev->dev, "failed to register ASoC DAI\n");  in fsl_aud2htx_probe()
252 		pm_runtime_disable(&pdev->dev);  in fsl_aud2htx_probe()
261 	pm_runtime_disable(&pdev->dev);  in fsl_aud2htx_remove()
266 	struct fsl_aud2htx *aud2htx = dev_get_drvdata(dev);  in fsl_aud2htx_runtime_suspend()  local
268 	regcache_cache_only(aud2htx->regmap, true);  in fsl_aud2htx_runtime_suspend()
269 	clk_disable_unprepare(aud2htx->bus_clk);  in fsl_aud2htx_runtime_suspend()
276 	struct fsl_aud2htx *aud2htx = dev_get_drvdata(dev);  in fsl_aud2htx_runtime_resume()  local
279 	ret = clk_prepare_enable(aud2htx->bus_clk);  in fsl_aud2htx_runtime_resume()
283 	regcache_cache_only(aud2htx->regmap, false);  in fsl_aud2htx_runtime_resume()
284 	regcache_mark_dirty(aud2htx->regmap);  in fsl_aud2htx_runtime_resume()
285 	regcache_sync(aud2htx->regmap);  in fsl_aud2htx_runtime_resume()
301 		.name = "fsl-aud2htx",
309 MODULE_DESCRIPTION("NXP AUD2HTX driver");