1 // SPDX-License-Identifier: GPL-2.0-only
2 // SPDX-FileCopyrightText: Copyright (c) 2021-2025 NVIDIA CORPORATION & AFFILIATES.
5 // tegra210_adx.c - Tegra210 ADX driver
35 static void tegra210_adx_write_map_ram(struct tegra210_adx *adx)  in tegra210_adx_write_map_ram()  argument
39 	regmap_write(adx->regmap, TEGRA210_ADX_CFG_RAM_CTRL,  in tegra210_adx_write_map_ram()
45 		regmap_write(adx->regmap, TEGRA210_ADX_CFG_RAM_DATA,  in tegra210_adx_write_map_ram()
46 			     adx->map[i]);  in tegra210_adx_write_map_ram()
48 	regmap_write(adx->regmap, TEGRA210_ADX_IN_BYTE_EN0, adx->byte_mask[0]);  in tegra210_adx_write_map_ram()
49 	regmap_write(adx->regmap, TEGRA210_ADX_IN_BYTE_EN1, adx->byte_mask[1]);  in tegra210_adx_write_map_ram()
55 	struct tegra210_adx *adx = snd_soc_dai_get_drvdata(dai);  in tegra210_adx_startup()  local
59 	/* Ensure if ADX status is disabled */  in tegra210_adx_startup()
60 	err = regmap_read_poll_timeout(adx->regmap, TEGRA210_ADX_STATUS,  in tegra210_adx_startup()
63 		dev_err(dai->dev, "failed to stop ADX, err = %d\n", err);  in tegra210_adx_startup()
73 	regmap_update_bits(adx->regmap, TEGRA210_ADX_SOFT_RESET,  in tegra210_adx_startup()
77 	err = regmap_read_poll_timeout(adx->regmap, TEGRA210_ADX_SOFT_RESET,  in tegra210_adx_startup()
80 		dev_err(dai->dev, "failed to reset ADX, err = %d\n", err);  in tegra210_adx_startup()
89 	struct tegra210_adx *adx = dev_get_drvdata(dev);  in tegra210_adx_runtime_suspend()  local
91 	regcache_cache_only(adx->regmap, true);  in tegra210_adx_runtime_suspend()
92 	regcache_mark_dirty(adx->regmap);  in tegra210_adx_runtime_suspend()
99 	struct tegra210_adx *adx = dev_get_drvdata(dev);  in tegra210_adx_runtime_resume()  local
101 	regcache_cache_only(adx->regmap, false);  in tegra210_adx_runtime_resume()
102 	regcache_sync(adx->regmap);  in tegra210_adx_runtime_resume()
104 	tegra210_adx_write_map_ram(adx);  in tegra210_adx_runtime_resume()
114 	struct tegra210_adx *adx = snd_soc_dai_get_drvdata(dai);  in tegra210_adx_set_audio_cif()  local
121 		return -EINVAL;  in tegra210_adx_set_audio_cif()
135 		return -EINVAL;  in tegra210_adx_set_audio_cif()
143 	tegra_set_cif(adx->regmap, reg, &cif_conf);  in tegra210_adx_set_audio_cif()
154 			TEGRA210_ADX_TX1_CIF_CTRL + ((dai->id - 1) * TEGRA210_ADX_AUDIOCIF_CH_STRIDE));  in tegra210_adx_out_hw_params()
170 	struct tegra210_adx *adx = snd_soc_component_get_drvdata(cmpnt);  in tegra210_adx_get_byte_map()  local
172 	unsigned char *bytes_map = (unsigned char *)&adx->map;  in tegra210_adx_get_byte_map()
175 	mc = (struct soc_mixer_control *)kcontrol->private_value;  in tegra210_adx_get_byte_map()
176 	enabled = adx->byte_mask[mc->reg / 32] & (1 << (mc->reg % 32));  in tegra210_adx_get_byte_map()
189 		ucontrol->value.integer.value[0] = bytes_map[mc->reg];  in tegra210_adx_get_byte_map()
191 		ucontrol->value.integer.value[0] = 256;  in tegra210_adx_get_byte_map()
200 	struct tegra210_adx *adx = snd_soc_component_get_drvdata(cmpnt);  in tegra210_adx_put_byte_map()  local
201 	unsigned char *bytes_map = (unsigned char *)&adx->map;  in tegra210_adx_put_byte_map()
202 	int value = ucontrol->value.integer.value[0];  in tegra210_adx_put_byte_map()
204 		(struct soc_mixer_control *)kcontrol->private_value;  in tegra210_adx_put_byte_map()
205 	unsigned int mask_val = adx->byte_mask[mc->reg / 32];  in tegra210_adx_put_byte_map()
208 		mask_val |= (1 << (mc->reg % 32));  in tegra210_adx_put_byte_map()
210 		mask_val &= ~(1 << (mc->reg % 32));  in tegra210_adx_put_byte_map()
212 	if (mask_val == adx->byte_mask[mc->reg / 32])  in tegra210_adx_put_byte_map()
216 	bytes_map[mc->reg] = value % 256;  in tegra210_adx_put_byte_map()
217 	adx->byte_mask[mc->reg / 32] = mask_val;  in tegra210_adx_put_byte_map()
233 		.name = "ADX-RX-CIF",				\
235 			.stream_name = "RX-CIF-Playback",	\
245 			.stream_name = "RX-CIF-Capture",	\
259 		.name = "ADX-TX" #id "-CIF",			\
261 			.stream_name = "TX" #id "-CIF-Playback",\
271 			.stream_name = "TX" #id "-CIF-Capture",	\
301 	{ "XBAR-" sname,		NULL,	"XBAR-TX" },		  \
302 	{ "RX-CIF-" sname,		NULL,	"XBAR-" sname },	  \
303 	{ "RX",				NULL,	"RX-CIF-" sname },	  \
305 	{ "TX" #id "-CIF-" sname,	NULL,	"TX" #id },		  \
306 	{ "TX" #id " XBAR-" sname,	NULL,	"TX" #id "-CIF-" sname }, \
307 	{ "TX" #id " XBAR-RX",		NULL,	"TX" #id " XBAR-" sname }
314 	{ "XBAR-" sname,		NULL,	"XBAR-TX" },		  \
315 	{ "RX-CIF-" sname,		NULL,	"XBAR-" sname },	  \
316 	{ "RX",				NULL,	"RX-CIF-" sname },	  \
318 	{ "TX" #id "-CIF-" sname,	NULL,	"TX" #id },		  \
319 	{ "TX" #id " XBAR-" sname,	NULL,	"TX" #id "-CIF-" sname }, \
320 	{ "TX" #id " XBAR-RX",		NULL,	"TX" #id " XBAR-" sname }
477 	{ .compatible = "nvidia,tegra210-adx" },
484 	struct device *dev = &pdev->dev;  in tegra210_adx_platform_probe()
485 	struct tegra210_adx *adx;  in tegra210_adx_platform_probe()  local
489 	adx = devm_kzalloc(dev, sizeof(*adx), GFP_KERNEL);  in tegra210_adx_platform_probe()
490 	if (!adx)  in tegra210_adx_platform_probe()
491 		return -ENOMEM;  in tegra210_adx_platform_probe()
493 	dev_set_drvdata(dev, adx);  in tegra210_adx_platform_probe()
499 	adx->regmap = devm_regmap_init_mmio(dev, regs,  in tegra210_adx_platform_probe()
501 	if (IS_ERR(adx->regmap)) {  in tegra210_adx_platform_probe()
503 		return PTR_ERR(adx->regmap);  in tegra210_adx_platform_probe()
506 	regcache_cache_only(adx->regmap, true);  in tegra210_adx_platform_probe()
512 		dev_err(dev, "can't register ADX component, err: %d\n", err);  in tegra210_adx_platform_probe()
523 	pm_runtime_disable(&pdev->dev);  in tegra210_adx_platform_remove()
535 		.name = "tegra210-adx",
545 MODULE_DESCRIPTION("Tegra210 ADX ASoC driver");