1 // SPDX-License-Identifier: GPL-2.0+
5 #include <linux/clk-provider.h>
19 #include <linux/dma-mapping.h>
22 #include "imx-pcm.h"
27 	struct fsl_aud2htx *aud2htx = snd_soc_dai_get_drvdata(dai);  in fsl_aud2htx_trigger()  local
33 		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL,  in fsl_aud2htx_trigger()
35 		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,  in fsl_aud2htx_trigger()
41 		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,  in fsl_aud2htx_trigger()
43 		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL,  in fsl_aud2htx_trigger()
47 		return -EINVAL;  in fsl_aud2htx_trigger()
54 	struct fsl_aud2htx *aud2htx = dev_get_drvdata(cpu_dai->dev);  in fsl_aud2htx_dai_probe()  local
57 	regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,  in fsl_aud2htx_dai_probe()
61 	regmap_update_bits(aud2htx->regmap, AUD2HTX_IRQ_MASK,  in fsl_aud2htx_dai_probe()
70 	regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,  in fsl_aud2htx_dai_probe()
73 	regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,  in fsl_aud2htx_dai_probe()
77 	snd_soc_dai_init_dma_data(cpu_dai, &aud2htx->dma_params_tx,  in fsl_aud2htx_dai_probe()
78 				  &aud2htx->dma_params_rx);  in fsl_aud2htx_dai_probe()
90 		.stream_name = "CPU-Playback",
106 	.name			= "fsl-aud2htx",
177 	{ .compatible = "fsl,imx8mp-aud2htx",},
189 	struct fsl_aud2htx *aud2htx;  in fsl_aud2htx_probe()  local
194 	aud2htx = devm_kzalloc(&pdev->dev, sizeof(*aud2htx), GFP_KERNEL);  in fsl_aud2htx_probe()
195 	if (!aud2htx)  in fsl_aud2htx_probe()
196 		return -ENOMEM;  in fsl_aud2htx_probe()
198 	aud2htx->pdev = pdev;  in fsl_aud2htx_probe()
204 	aud2htx->regmap = devm_regmap_init_mmio(&pdev->dev, regs,  in fsl_aud2htx_probe()
206 	if (IS_ERR(aud2htx->regmap)) {  in fsl_aud2htx_probe()
207 		dev_err(&pdev->dev, "failed to init regmap");  in fsl_aud2htx_probe()
208 		return PTR_ERR(aud2htx->regmap);  in fsl_aud2htx_probe()
215 	ret = devm_request_irq(&pdev->dev, irq, fsl_aud2htx_isr, 0,  in fsl_aud2htx_probe()
216 			       dev_name(&pdev->dev), aud2htx);  in fsl_aud2htx_probe()
218 		dev_err(&pdev->dev, "failed to claim irq %u: %d\n", irq, ret);  in fsl_aud2htx_probe()
222 	aud2htx->bus_clk = devm_clk_get(&pdev->dev, "bus");  in fsl_aud2htx_probe()
223 	if (IS_ERR(aud2htx->bus_clk)) {  in fsl_aud2htx_probe()
224 		dev_err(&pdev->dev, "failed to get mem clock\n");  in fsl_aud2htx_probe()
225 		return PTR_ERR(aud2htx->bus_clk);  in fsl_aud2htx_probe()
228 	aud2htx->dma_params_tx.chan_name = "tx";  in fsl_aud2htx_probe()
229 	aud2htx->dma_params_tx.maxburst = AUD2HTX_MAXBURST;  in fsl_aud2htx_probe()
230 	aud2htx->dma_params_tx.addr = res->start + AUD2HTX_WR;  in fsl_aud2htx_probe()
232 	platform_set_drvdata(pdev, aud2htx);  in fsl_aud2htx_probe()
233 	pm_runtime_enable(&pdev->dev);  in fsl_aud2htx_probe()
235 	regcache_cache_only(aud2htx->regmap, true);  in fsl_aud2htx_probe()
241 	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);  in fsl_aud2htx_probe()
243 		dev_err(&pdev->dev, "failed to pcm register\n");  in fsl_aud2htx_probe()
244 		pm_runtime_disable(&pdev->dev);  in fsl_aud2htx_probe()
248 	ret = devm_snd_soc_register_component(&pdev->dev,  in fsl_aud2htx_probe()
252 		dev_err(&pdev->dev, "failed to register ASoC DAI\n");  in fsl_aud2htx_probe()
253 		pm_runtime_disable(&pdev->dev);  in fsl_aud2htx_probe()
262 	pm_runtime_disable(&pdev->dev);  in fsl_aud2htx_remove()
267 	struct fsl_aud2htx *aud2htx = dev_get_drvdata(dev);  in fsl_aud2htx_runtime_suspend()  local
269 	regcache_cache_only(aud2htx->regmap, true);  in fsl_aud2htx_runtime_suspend()
270 	clk_disable_unprepare(aud2htx->bus_clk);  in fsl_aud2htx_runtime_suspend()
277 	struct fsl_aud2htx *aud2htx = dev_get_drvdata(dev);  in fsl_aud2htx_runtime_resume()  local
280 	ret = clk_prepare_enable(aud2htx->bus_clk);  in fsl_aud2htx_runtime_resume()
284 	regcache_cache_only(aud2htx->regmap, false);  in fsl_aud2htx_runtime_resume()
285 	regcache_mark_dirty(aud2htx->regmap);  in fsl_aud2htx_runtime_resume()
286 	regcache_sync(aud2htx->regmap);  in fsl_aud2htx_runtime_resume()
303 		.name = "fsl-aud2htx",
311 MODULE_DESCRIPTION("NXP AUD2HTX driver");