1 // SPDX-License-Identifier: GPL-2.0-only
3 // tegra210_amx.c - Tegra210 AMX driver
5 // Copyright (c) 2021-2023 NVIDIA CORPORATION.  All rights reserved.
24  * The counter is in terms of AHUB clock cycles. If a frame is not
27  * function of sample rate (8 kHz) and AHUB clock (49.152 MHz).
53 	regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_CTRL,  in tegra210_amx_write_map_ram()
59 		regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_DATA,  in tegra210_amx_write_map_ram()
60 			     amx->map[i]);  in tegra210_amx_write_map_ram()
62 	regmap_write(amx->regmap, TEGRA210_AMX_OUT_BYTE_EN0, amx->byte_mask[0]);  in tegra210_amx_write_map_ram()
63 	regmap_write(amx->regmap, TEGRA210_AMX_OUT_BYTE_EN1, amx->byte_mask[1]);  in tegra210_amx_write_map_ram()
74 	err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_STATUS, val,  in tegra210_amx_startup()
77 		dev_err(dai->dev, "failed to stop AMX, err = %d\n", err);  in tegra210_amx_startup()
87 	regmap_update_bits(amx->regmap, TEGRA210_AMX_SOFT_RESET,  in tegra210_amx_startup()
91 	err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_SOFT_RESET,  in tegra210_amx_startup()
94 		dev_err(dai->dev, "failed to reset AMX, err = %d\n", err);  in tegra210_amx_startup()
105 	regcache_cache_only(amx->regmap, true);  in tegra210_amx_runtime_suspend()
106 	regcache_mark_dirty(amx->regmap);  in tegra210_amx_runtime_suspend()
115 	regcache_cache_only(amx->regmap, false);  in tegra210_amx_runtime_resume()
116 	regcache_sync(amx->regmap);  in tegra210_amx_runtime_resume()
118 	regmap_update_bits(amx->regmap,  in tegra210_amx_runtime_resume()
151 		return -EINVAL;  in tegra210_amx_set_audio_cif()
159 	tegra_set_cif(amx->regmap, reg, &cif_conf);  in tegra210_amx_set_audio_cif()
170 	if (amx->soc_data->auto_disable) {  in tegra210_amx_in_hw_params()
171 		regmap_write(amx->regmap,  in tegra210_amx_in_hw_params()
172 			     AMX_CH_REG(dai->id, TEGRA194_AMX_RX1_FRAME_PERIOD),  in tegra210_amx_in_hw_params()
174 		regmap_write(amx->regmap, TEGRA210_AMX_CYA, 1);  in tegra210_amx_in_hw_params()
178 			AMX_CH_REG(dai->id, TEGRA210_AMX_RX1_CIF_CTRL));  in tegra210_amx_in_hw_params()
194 		(struct soc_mixer_control *)kcontrol->private_value;  in tegra210_amx_get_byte_map()
196 	unsigned char *bytes_map = (unsigned char *)&amx->map;  in tegra210_amx_get_byte_map()
197 	int reg = mc->reg;  in tegra210_amx_get_byte_map()
201 		enabled = amx->byte_mask[1] & (1 << (reg - 32));  in tegra210_amx_get_byte_map()
203 		enabled = amx->byte_mask[0] & (1 << reg);  in tegra210_amx_get_byte_map()
216 		ucontrol->value.integer.value[0] = bytes_map[reg];  in tegra210_amx_get_byte_map()
218 		ucontrol->value.integer.value[0] = 256;  in tegra210_amx_get_byte_map()
227 		(struct soc_mixer_control *)kcontrol->private_value;  in tegra210_amx_put_byte_map()
230 	unsigned char *bytes_map = (unsigned char *)&amx->map;  in tegra210_amx_put_byte_map()
231 	int reg = mc->reg;  in tegra210_amx_put_byte_map()
232 	int value = ucontrol->value.integer.value[0];  in tegra210_amx_put_byte_map()
233 	unsigned int mask_val = amx->byte_mask[reg / 32];  in tegra210_amx_put_byte_map()
240 	if (mask_val == amx->byte_mask[reg / 32])  in tegra210_amx_put_byte_map()
245 	amx->byte_mask[reg / 32] = mask_val;  in tegra210_amx_put_byte_map()
261 		.name = "AMX-RX-CIF" #id,			\
263 			.stream_name = "RX" #id "-CIF-Playback",\
272 			.stream_name = "RX" #id "-CIF-Capture",	\
285 		.name = "AMX-TX-CIF",				\
287 			.stream_name = "TX-CIF-Playback",	\
296 			.stream_name = "TX-CIF-Capture",	\
325 	{ "RX" #id " XBAR-" sname,	NULL,	"RX" #id " XBAR-TX" },	  \
326 	{ "RX" #id "-CIF-" sname,	NULL,	"RX" #id " XBAR-" sname },\
327 	{ "RX" #id,			NULL,	"RX" #id "-CIF-" sname }, \
329 	{ "TX-CIF-" sname,		NULL,	"TX" },			  \
330 	{ "XBAR-" sname,		NULL,	"TX-CIF-" sname },	  \
331 	{ "XBAR-RX",			NULL,	"XBAR-" sname }
526 	{ .compatible = "nvidia,tegra210-amx", .data = &soc_data_tegra210 },
527 	{ .compatible = "nvidia,tegra194-amx", .data = &soc_data_tegra194 },
534 	struct device *dev = &pdev->dev;  in tegra210_amx_platform_probe()
541 		return -ENOMEM;  in tegra210_amx_platform_probe()
543 	amx->soc_data = device_get_match_data(dev);  in tegra210_amx_platform_probe()
551 	amx->regmap = devm_regmap_init_mmio(dev, regs,  in tegra210_amx_platform_probe()
552 					    amx->soc_data->regmap_conf);  in tegra210_amx_platform_probe()
553 	if (IS_ERR(amx->regmap)) {  in tegra210_amx_platform_probe()
555 		return PTR_ERR(amx->regmap);  in tegra210_amx_platform_probe()
558 	regcache_cache_only(amx->regmap, true);  in tegra210_amx_platform_probe()
575 	pm_runtime_disable(&pdev->dev);  in tegra210_amx_platform_remove()
587 		.name = "tegra210-amx",
597 MODULE_DESCRIPTION("Tegra210 AMX ASoC driver");