diff options
Diffstat (limited to 'sound/soc/tegra/tegra_audio_graph_card.c')
| -rw-r--r-- | sound/soc/tegra/tegra_audio_graph_card.c | 68 |
1 files changed, 41 insertions, 27 deletions
diff --git a/sound/soc/tegra/tegra_audio_graph_card.c b/sound/soc/tegra/tegra_audio_graph_card.c index 1f2c5018bf5a..94b5ab77649b 100644 --- a/sound/soc/tegra/tegra_audio_graph_card.c +++ b/sound/soc/tegra/tegra_audio_graph_card.c @@ -1,15 +1,15 @@ // SPDX-License-Identifier: GPL-2.0-only +// SPDX-FileCopyrightText: Copyright (c) 2020-2025 NVIDIA CORPORATION. All rights reserved. // // tegra_audio_graph_card.c - Audio Graph based Tegra Machine Driver -// -// Copyright (c) 2020-2021 NVIDIA CORPORATION. All rights reserved. #include <linux/math64.h> #include <linux/module.h> -#include <linux/of_device.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <sound/graph_card.h> #include <sound/pcm_params.h> +#include <sound/soc-dai.h> #define MAX_PLLA_OUT0_DIV 128 @@ -33,7 +33,7 @@ enum srate_type { }; struct tegra_audio_priv { - struct asoc_simple_priv simple; + struct simple_util_priv simple; struct clk *clk_plla_out0; struct clk *clk_plla; }; @@ -44,12 +44,27 @@ struct tegra_audio_cdata { unsigned int plla_out0_rates[NUM_RATE_TYPE]; }; +static bool need_clk_update(struct snd_soc_dai *dai) +{ + if (snd_soc_dai_is_dummy(dai) || + !dai->driver->ops || + !dai->driver->name) + return false; + + if (strstr(dai->driver->name, "I2S") || + strstr(dai->driver->name, "DMIC") || + strstr(dai->driver->name, "DSPK")) + return true; + + return false; +} + /* Setup PLL clock as per the given sample rate */ static int tegra_audio_graph_update_pll(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct asoc_simple_priv *simple = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); + struct simple_util_priv *simple = snd_soc_card_get_drvdata(rtd->card); struct tegra_audio_priv *priv = simple_to_tegra_priv(simple); struct device *dev = rtd->card->dev; const struct tegra_audio_cdata *data = of_device_get_match_data(dev); @@ -136,40 +151,28 @@ static int tegra_audio_graph_update_pll(struct snd_pcm_substream *substream, static int tegra_audio_graph_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); int err; - /* - * This gets called for each DAI link (FE or BE) when DPCM is used. - * We may not want to update PLLA rate for each call. So PLLA update - * must be restricted to external I/O links (I2S, DMIC or DSPK) since - * they actually depend on it. I/O modules update their clocks in - * hw_param() of their respective component driver and PLLA rate - * update here helps them to derive appropriate rates. - * - * TODO: When more HW accelerators get added (like sample rate - * converter, volume gain controller etc., which don't really - * depend on PLLA) we need a better way to filter here. - */ - if (cpu_dai->driver->ops && rtd->dai_link->no_pcm) { + if (need_clk_update(cpu_dai)) { err = tegra_audio_graph_update_pll(substream, params); if (err) return err; } - return asoc_simple_hw_params(substream, params); + return simple_util_hw_params(substream, params); } static const struct snd_soc_ops tegra_audio_graph_ops = { - .startup = asoc_simple_startup, - .shutdown = asoc_simple_shutdown, + .startup = simple_util_startup, + .shutdown = simple_util_shutdown, .hw_params = tegra_audio_graph_hw_params, }; static int tegra_audio_graph_card_probe(struct snd_soc_card *card) { - struct asoc_simple_priv *simple = snd_soc_card_get_drvdata(card); + struct simple_util_priv *simple = snd_soc_card_get_drvdata(card); struct tegra_audio_priv *priv = simple_to_tegra_priv(simple); priv->clk_plla = devm_clk_get(card->dev, "pll_a"); @@ -184,7 +187,7 @@ static int tegra_audio_graph_card_probe(struct snd_soc_card *card) return PTR_ERR(priv->clk_plla_out0); } - return asoc_graph_card_probe(card); + return graph_util_card_probe(card); } static int tegra_audio_graph_probe(struct platform_device *pdev) @@ -228,11 +231,22 @@ static const struct tegra_audio_cdata tegra186_data = { .plla_out0_rates[x11_RATE] = 45158400, }; +static const struct tegra_audio_cdata tegra264_data = { + /* PLLA1 */ + .plla_rates[x8_RATE] = 983040000, + .plla_rates[x11_RATE] = 993484800, + /* PLLA1_OUT1 */ + .plla_out0_rates[x8_RATE] = 49152000, + .plla_out0_rates[x11_RATE] = 45158400, +}; + static const struct of_device_id graph_of_tegra_match[] = { { .compatible = "nvidia,tegra210-audio-graph-card", .data = &tegra210_data }, { .compatible = "nvidia,tegra186-audio-graph-card", .data = &tegra186_data }, + { .compatible = "nvidia,tegra264-audio-graph-card", + .data = &tegra264_data }, {}, }; MODULE_DEVICE_TABLE(of, graph_of_tegra_match); @@ -244,7 +258,7 @@ static struct platform_driver tegra_audio_graph_card = { .of_match_table = graph_of_tegra_match, }, .probe = tegra_audio_graph_probe, - .remove = asoc_simple_remove, + .remove = simple_util_remove, }; module_platform_driver(tegra_audio_graph_card); |