3  * ALSA SoC Audio Layer - Rockchip I2S Controller driver
6  * Author: Jianqun <jay.xu@rock-chips.com>
48 	{ .compatible = "rockchip,rk3066-spdif",
50 	{ .compatible = "rockchip,rk3188-spdif",
52 	{ .compatible = "rockchip,rk3228-spdif",
54 	{ .compatible = "rockchip,rk3288-spdif",
56 	{ .compatible = "rockchip,rk3328-spdif",
58 	{ .compatible = "rockchip,rk3366-spdif",
60 	{ .compatible = "rockchip,rk3368-spdif",
62 	{ .compatible = "rockchip,rk3399-spdif",
72 	regcache_cache_only(spdif->regmap, true);  in rk_spdif_runtime_suspend()
73 	clk_disable_unprepare(spdif->mclk);  in rk_spdif_runtime_suspend()
74 	clk_disable_unprepare(spdif->hclk);  in rk_spdif_runtime_suspend()
84 	ret = clk_prepare_enable(spdif->mclk);  in rk_spdif_runtime_resume()
86 		dev_err(spdif->dev, "mclk clock enable failed %d\n", ret);  in rk_spdif_runtime_resume()
90 	ret = clk_prepare_enable(spdif->hclk);  in rk_spdif_runtime_resume()
92 		dev_err(spdif->dev, "hclk clock enable failed %d\n", ret);  in rk_spdif_runtime_resume()
96 	regcache_cache_only(spdif->regmap, false);  in rk_spdif_runtime_resume()
97 	regcache_mark_dirty(spdif->regmap);  in rk_spdif_runtime_resume()
99 	ret = regcache_sync(spdif->regmap);  in rk_spdif_runtime_resume()
101 		clk_disable_unprepare(spdif->mclk);  in rk_spdif_runtime_resume()
102 		clk_disable_unprepare(spdif->hclk);  in rk_spdif_runtime_resume()
131 		return -EINVAL;  in rk_spdif_hw_params()
135 	ret = clk_set_rate(spdif->mclk, mclk);  in rk_spdif_hw_params()
137 		dev_err(spdif->dev, "Failed to set module clock rate: %d\n",  in rk_spdif_hw_params()
142 	ret = regmap_update_bits(spdif->regmap, SPDIF_CFGR,  in rk_spdif_hw_params()
160 		ret = regmap_update_bits(spdif->regmap, SPDIF_DMACR,  in rk_spdif_trigger()
169 		ret = regmap_update_bits(spdif->regmap, SPDIF_XFER,  in rk_spdif_trigger()
176 		ret = regmap_update_bits(spdif->regmap, SPDIF_DMACR,  in rk_spdif_trigger()
183 		ret = regmap_update_bits(spdif->regmap, SPDIF_XFER,  in rk_spdif_trigger()
188 		ret = -EINVAL;  in rk_spdif_trigger()
199 	dai->playback_dma_data = &spdif->playback_dma_data;  in rk_spdif_dai_probe()
228 	.name = "rockchip-spdif",
283 	struct device_node *np = pdev->dev.of_node;  in rk_spdif_probe()
291 	if (match->data == (void *)RK_SPDIF_RK3288) {  in rk_spdif_probe()
296 			dev_err(&pdev->dev,  in rk_spdif_probe()
307 	spdif = devm_kzalloc(&pdev->dev, sizeof(*spdif), GFP_KERNEL);  in rk_spdif_probe()
309 		return -ENOMEM;  in rk_spdif_probe()
311 	spdif->hclk = devm_clk_get(&pdev->dev, "hclk");  in rk_spdif_probe()
312 	if (IS_ERR(spdif->hclk)) {  in rk_spdif_probe()
313 		dev_err(&pdev->dev, "Can't retrieve rk_spdif bus clock\n");  in rk_spdif_probe()
314 		return PTR_ERR(spdif->hclk);  in rk_spdif_probe()
316 	ret = clk_prepare_enable(spdif->hclk);  in rk_spdif_probe()
318 		dev_err(spdif->dev, "hclock enable failed %d\n", ret);  in rk_spdif_probe()
322 	spdif->mclk = devm_clk_get(&pdev->dev, "mclk");  in rk_spdif_probe()
323 	if (IS_ERR(spdif->mclk)) {  in rk_spdif_probe()
324 		dev_err(&pdev->dev, "Can't retrieve rk_spdif master clock\n");  in rk_spdif_probe()
325 		ret = PTR_ERR(spdif->mclk);  in rk_spdif_probe()
329 	ret = clk_prepare_enable(spdif->mclk);  in rk_spdif_probe()
331 		dev_err(spdif->dev, "clock enable failed %d\n", ret);  in rk_spdif_probe()
336 	regs = devm_ioremap_resource(&pdev->dev, res);  in rk_spdif_probe()
342 	spdif->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "hclk", regs,  in rk_spdif_probe()
344 	if (IS_ERR(spdif->regmap)) {  in rk_spdif_probe()
345 		dev_err(&pdev->dev,  in rk_spdif_probe()
347 		ret = PTR_ERR(spdif->regmap);  in rk_spdif_probe()
351 	spdif->playback_dma_data.addr = res->start + SPDIF_SMPDR;  in rk_spdif_probe()
352 	spdif->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;  in rk_spdif_probe()
353 	spdif->playback_dma_data.maxburst = 4;  in rk_spdif_probe()
355 	spdif->dev = &pdev->dev;  in rk_spdif_probe()
356 	dev_set_drvdata(&pdev->dev, spdif);  in rk_spdif_probe()
358 	pm_runtime_set_active(&pdev->dev);  in rk_spdif_probe()
359 	pm_runtime_enable(&pdev->dev);  in rk_spdif_probe()
360 	pm_request_idle(&pdev->dev);  in rk_spdif_probe()
362 	ret = devm_snd_soc_register_component(&pdev->dev,  in rk_spdif_probe()
366 		dev_err(&pdev->dev, "Could not register DAI\n");  in rk_spdif_probe()
370 	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);  in rk_spdif_probe()
372 		dev_err(&pdev->dev, "Could not register PCM\n");  in rk_spdif_probe()
379 	pm_runtime_disable(&pdev->dev);  in rk_spdif_probe()
381 	clk_disable_unprepare(spdif->mclk);  in rk_spdif_probe()
383 	clk_disable_unprepare(spdif->hclk);  in rk_spdif_probe()
390 	struct rk_spdif_dev *spdif = dev_get_drvdata(&pdev->dev);  in rk_spdif_remove()
392 	pm_runtime_disable(&pdev->dev);  in rk_spdif_remove()
393 	if (!pm_runtime_status_suspended(&pdev->dev))  in rk_spdif_remove()
394 		rk_spdif_runtime_suspend(&pdev->dev);  in rk_spdif_remove()
396 	clk_disable_unprepare(spdif->mclk);  in rk_spdif_remove()
397 	clk_disable_unprepare(spdif->hclk);  in rk_spdif_remove()
411 		.name = "rockchip-spdif",
418 MODULE_ALIAS("platform:rockchip-spdif");