1 // SPDX-License-Identifier: GPL-2.0-only
3 // tegra_audio_graph_card.c - Audio Graph based Tegra Machine Driver
5 // Copyright (c) 2020-2021 NVIDIA CORPORATION.  All rights reserved.
41 /* Tegra audio chip data */
52 	struct asoc_simple_priv *simple = snd_soc_card_get_drvdata(rtd->card);  in tegra_audio_graph_update_pll()
54 	struct device *dev = rtd->card->dev;  in tegra_audio_graph_update_pll()
66 		plla_out0_rate = data->plla_out0_rates[x11_RATE];  in tegra_audio_graph_update_pll()
67 		plla_rate = data->plla_rates[x11_RATE];  in tegra_audio_graph_update_pll()
75 		plla_out0_rate = data->plla_out0_rates[x8_RATE];  in tegra_audio_graph_update_pll()
76 		plla_rate = data->plla_rates[x8_RATE];  in tegra_audio_graph_update_pll()
79 		dev_err(rtd->card->dev, "Unsupported sample rate %u\n",  in tegra_audio_graph_update_pll()
81 		return -EINVAL;  in tegra_audio_graph_update_pll()
89 	 *	  |--> PLLA_OUT0  in tegra_audio_graph_update_pll()
91 	 *		  |---> I2S modules  in tegra_audio_graph_update_pll()
93 	 *		  |---> DMIC modules  in tegra_audio_graph_update_pll()
95 	 *		  |---> DSPK modules  in tegra_audio_graph_update_pll()
100 	 * clock rates and glitchy audio. The maximum divider is 128  in tegra_audio_graph_update_pll()
111 	dev_dbg(rtd->card->dev,  in tegra_audio_graph_update_pll()
116 	err = clk_set_rate(priv->clk_plla, plla_rate);  in tegra_audio_graph_update_pll()
118 		dev_err(rtd->card->dev,  in tegra_audio_graph_update_pll()
125 	err = clk_set_rate(priv->clk_plla_out0, plla_out0_rate);  in tegra_audio_graph_update_pll()
127 		dev_err(rtd->card->dev,  in tegra_audio_graph_update_pll()
155 	if (cpu_dai->driver->ops && rtd->dai_link->no_pcm) {  in tegra_audio_graph_hw_params()
175 	priv->clk_plla = devm_clk_get(card->dev, "pll_a");  in tegra_audio_graph_card_probe()
176 	if (IS_ERR(priv->clk_plla)) {  in tegra_audio_graph_card_probe()
177 		dev_err(card->dev, "Can't retrieve clk pll_a\n");  in tegra_audio_graph_card_probe()
178 		return PTR_ERR(priv->clk_plla);  in tegra_audio_graph_card_probe()
181 	priv->clk_plla_out0 = devm_clk_get(card->dev, "plla_out0");  in tegra_audio_graph_card_probe()
182 	if (IS_ERR(priv->clk_plla_out0)) {  in tegra_audio_graph_card_probe()
183 		dev_err(card->dev, "Can't retrieve clk plla_out0\n");  in tegra_audio_graph_card_probe()
184 		return PTR_ERR(priv->clk_plla_out0);  in tegra_audio_graph_card_probe()
193 	struct device *dev = &pdev->dev;  in tegra_audio_graph_probe()
198 		return -ENOMEM;  in tegra_audio_graph_probe()
200 	card = simple_priv_to_card(&priv->simple);  in tegra_audio_graph_probe()
201 	card->driver_name = "tegra-ape";  in tegra_audio_graph_probe()
203 	card->probe = tegra_audio_graph_card_probe;  in tegra_audio_graph_probe()
206 	card->component_chaining = 1;  in tegra_audio_graph_probe()
207 	priv->simple.ops = &tegra_audio_graph_ops;  in tegra_audio_graph_probe()
208 	priv->simple.force_dpcm = 1;  in tegra_audio_graph_probe()
210 	return audio_graph_parse_of(&priv->simple, dev);  in tegra_audio_graph_probe()
232 	{ .compatible = "nvidia,tegra210-audio-graph-card",
234 	{ .compatible = "nvidia,tegra186-audio-graph-card",
242 		.name = "tegra-audio-graph-card",
252 MODULE_DESCRIPTION("ASoC Tegra Audio Graph Sound Card");