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.
13 #include <sound/soc-dai.h>
17 #define simple_to_tegra_priv(simple) \  argument
18 		container_of(simple, struct tegra_audio_priv, simple)
37 	struct simple_util_priv simple;  member
51 	    !dai->driver->ops ||  in need_clk_update()
52 	    !dai->driver->name)  in need_clk_update()
55 	if (strstr(dai->driver->name, "I2S") ||  in need_clk_update()
56 	    strstr(dai->driver->name, "DMIC") ||  in need_clk_update()
57 	    strstr(dai->driver->name, "DSPK"))  in need_clk_update()
68 	struct simple_util_priv *simple = snd_soc_card_get_drvdata(rtd->card);  in tegra_audio_graph_update_pll()  local
69 	struct tegra_audio_priv *priv = simple_to_tegra_priv(simple);  in tegra_audio_graph_update_pll()
70 	struct device *dev = rtd->card->dev;  in tegra_audio_graph_update_pll()
82 		plla_out0_rate = data->plla_out0_rates[x11_RATE];  in tegra_audio_graph_update_pll()
83 		plla_rate = data->plla_rates[x11_RATE];  in tegra_audio_graph_update_pll()
91 		plla_out0_rate = data->plla_out0_rates[x8_RATE];  in tegra_audio_graph_update_pll()
92 		plla_rate = data->plla_rates[x8_RATE];  in tegra_audio_graph_update_pll()
95 		dev_err(rtd->card->dev, "Unsupported sample rate %u\n",  in tegra_audio_graph_update_pll()
97 		return -EINVAL;  in tegra_audio_graph_update_pll()
105 	 *	  |--> PLLA_OUT0  in tegra_audio_graph_update_pll()
107 	 *		  |---> I2S modules  in tegra_audio_graph_update_pll()
109 	 *		  |---> DMIC modules  in tegra_audio_graph_update_pll()
111 	 *		  |---> DSPK modules  in tegra_audio_graph_update_pll()
127 	dev_dbg(rtd->card->dev,  in tegra_audio_graph_update_pll()
132 	err = clk_set_rate(priv->clk_plla, plla_rate);  in tegra_audio_graph_update_pll()
134 		dev_err(rtd->card->dev,  in tegra_audio_graph_update_pll()
141 	err = clk_set_rate(priv->clk_plla_out0, plla_out0_rate);  in tegra_audio_graph_update_pll()
143 		dev_err(rtd->card->dev,  in tegra_audio_graph_update_pll()
174 static int tegra_audio_graph_card_probe(struct snd_soc_card *card)  in tegra_audio_graph_card_probe()  argument
176 	struct simple_util_priv *simple = snd_soc_card_get_drvdata(card);  in tegra_audio_graph_card_probe()  local
177 	struct tegra_audio_priv *priv = simple_to_tegra_priv(simple);  in tegra_audio_graph_card_probe()
179 	priv->clk_plla = devm_clk_get(card->dev, "pll_a");  in tegra_audio_graph_card_probe()
180 	if (IS_ERR(priv->clk_plla)) {  in tegra_audio_graph_card_probe()
181 		dev_err(card->dev, "Can't retrieve clk pll_a\n");  in tegra_audio_graph_card_probe()
182 		return PTR_ERR(priv->clk_plla);  in tegra_audio_graph_card_probe()
185 	priv->clk_plla_out0 = devm_clk_get(card->dev, "plla_out0");  in tegra_audio_graph_card_probe()
186 	if (IS_ERR(priv->clk_plla_out0)) {  in tegra_audio_graph_card_probe()
187 		dev_err(card->dev, "Can't retrieve clk plla_out0\n");  in tegra_audio_graph_card_probe()
188 		return PTR_ERR(priv->clk_plla_out0);  in tegra_audio_graph_card_probe()
191 	return graph_util_card_probe(card);  in tegra_audio_graph_card_probe()
197 	struct device *dev = &pdev->dev;  in tegra_audio_graph_probe()
198 	struct snd_soc_card *card;  in tegra_audio_graph_probe()  local
202 		return -ENOMEM;  in tegra_audio_graph_probe()
204 	card = simple_priv_to_card(&priv->simple);  in tegra_audio_graph_probe()
205 	card->driver_name = "tegra-ape";  in tegra_audio_graph_probe()
207 	card->probe = tegra_audio_graph_card_probe;  in tegra_audio_graph_probe()
210 	card->component_chaining = 1;  in tegra_audio_graph_probe()
211 	priv->simple.ops = &tegra_audio_graph_ops;  in tegra_audio_graph_probe()
212 	priv->simple.force_dpcm = 1;  in tegra_audio_graph_probe()
214 	return audio_graph_parse_of(&priv->simple, dev);  in tegra_audio_graph_probe()
236 	{ .compatible = "nvidia,tegra210-audio-graph-card",
238 	{ .compatible = "nvidia,tegra186-audio-graph-card",
246 		.name = "tegra-audio-graph-card",
256 MODULE_DESCRIPTION("ASoC Tegra Audio Graph Sound Card");