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.
25  * The counter is in terms of AHUB clock cycles. If a frame is not
28  * function of sample rate (8 kHz) and AHUB clock (49.152 MHz).
54 	regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_CTRL,  in tegra210_amx_write_map_ram()
60 		regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_DATA,  in tegra210_amx_write_map_ram()
61 			     amx->map[i]);  in tegra210_amx_write_map_ram()
63 	regmap_write(amx->regmap, TEGRA210_AMX_OUT_BYTE_EN0, amx->byte_mask[0]);  in tegra210_amx_write_map_ram()
64 	regmap_write(amx->regmap, TEGRA210_AMX_OUT_BYTE_EN1, amx->byte_mask[1]);  in tegra210_amx_write_map_ram()
75 	err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_STATUS, val,  in tegra210_amx_startup()
78 		dev_err(dai->dev, "failed to stop AMX, err = %d\n", err);  in tegra210_amx_startup()
88 	regmap_update_bits(amx->regmap, TEGRA210_AMX_SOFT_RESET,  in tegra210_amx_startup()
92 	err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_SOFT_RESET,  in tegra210_amx_startup()
95 		dev_err(dai->dev, "failed to reset AMX, err = %d\n", err);  in tegra210_amx_startup()
106 	regcache_cache_only(amx->regmap, true);  in tegra210_amx_runtime_suspend()
107 	regcache_mark_dirty(amx->regmap);  in tegra210_amx_runtime_suspend()
116 	regcache_cache_only(amx->regmap, false);  in tegra210_amx_runtime_resume()
117 	regcache_sync(amx->regmap);  in tegra210_amx_runtime_resume()
119 	regmap_update_bits(amx->regmap,  in tegra210_amx_runtime_resume()
152 		return -EINVAL;  in tegra210_amx_set_audio_cif()
160 	tegra_set_cif(amx->regmap, reg, &cif_conf);  in tegra210_amx_set_audio_cif()
171 	if (amx->soc_data->auto_disable) {  in tegra210_amx_in_hw_params()
172 		regmap_write(amx->regmap,  in tegra210_amx_in_hw_params()
173 			     AMX_CH_REG(dai->id, TEGRA194_AMX_RX1_FRAME_PERIOD),  in tegra210_amx_in_hw_params()
175 		regmap_write(amx->regmap, TEGRA210_AMX_CYA, 1);  in tegra210_amx_in_hw_params()
179 			AMX_CH_REG(dai->id, TEGRA210_AMX_RX1_CIF_CTRL));  in tegra210_amx_in_hw_params()
195 		(struct soc_mixer_control *)kcontrol->private_value;  in tegra210_amx_get_byte_map()
197 	unsigned char *bytes_map = (unsigned char *)&amx->map;  in tegra210_amx_get_byte_map()
198 	int reg = mc->reg;  in tegra210_amx_get_byte_map()
202 		enabled = amx->byte_mask[1] & (1 << (reg - 32));  in tegra210_amx_get_byte_map()
204 		enabled = amx->byte_mask[0] & (1 << reg);  in tegra210_amx_get_byte_map()
217 		ucontrol->value.integer.value[0] = bytes_map[reg];  in tegra210_amx_get_byte_map()
219 		ucontrol->value.integer.value[0] = 256;  in tegra210_amx_get_byte_map()
228 		(struct soc_mixer_control *)kcontrol->private_value;  in tegra210_amx_put_byte_map()
231 	unsigned char *bytes_map = (unsigned char *)&amx->map;  in tegra210_amx_put_byte_map()
232 	int reg = mc->reg;  in tegra210_amx_put_byte_map()
233 	int value = ucontrol->value.integer.value[0];  in tegra210_amx_put_byte_map()
234 	unsigned int mask_val = amx->byte_mask[reg / 32];  in tegra210_amx_put_byte_map()
241 	if (mask_val == amx->byte_mask[reg / 32])  in tegra210_amx_put_byte_map()
246 	amx->byte_mask[reg / 32] = mask_val;  in tegra210_amx_put_byte_map()
262 		.name = "AMX-RX-CIF" #id,			\
264 			.stream_name = "RX" #id "-CIF-Playback",\
273 			.stream_name = "RX" #id "-CIF-Capture",	\
286 		.name = "AMX-TX-CIF",				\
288 			.stream_name = "TX-CIF-Playback",	\
297 			.stream_name = "TX-CIF-Capture",	\
326 	{ "RX" #id " XBAR-" sname,	NULL,	"RX" #id " XBAR-TX" },	  \
327 	{ "RX" #id "-CIF-" sname,	NULL,	"RX" #id " XBAR-" sname },\
328 	{ "RX" #id,			NULL,	"RX" #id "-CIF-" sname }, \
330 	{ "TX-CIF-" sname,		NULL,	"TX" },			  \
331 	{ "XBAR-" sname,		NULL,	"TX-CIF-" sname },	  \
332 	{ "XBAR-RX",			NULL,	"XBAR-" sname }
527 	{ .compatible = "nvidia,tegra210-amx", .data = &soc_data_tegra210 },
528 	{ .compatible = "nvidia,tegra194-amx", .data = &soc_data_tegra194 },
535 	struct device *dev = &pdev->dev;  in tegra210_amx_platform_probe()
544 	soc_data = (struct tegra210_amx_soc_data *)match->data;  in tegra210_amx_platform_probe()
548 		return -ENOMEM;  in tegra210_amx_platform_probe()
550 	amx->soc_data = soc_data;  in tegra210_amx_platform_probe()
558 	amx->regmap = devm_regmap_init_mmio(dev, regs,  in tegra210_amx_platform_probe()
559 					    soc_data->regmap_conf);  in tegra210_amx_platform_probe()
560 	if (IS_ERR(amx->regmap)) {  in tegra210_amx_platform_probe()
562 		return PTR_ERR(amx->regmap);  in tegra210_amx_platform_probe()
565 	regcache_cache_only(amx->regmap, true);  in tegra210_amx_platform_probe()
582 	pm_runtime_disable(&pdev->dev);  in tegra210_amx_platform_remove()
594 		.name = "tegra210-amx",
604 MODULE_DESCRIPTION("Tegra210 AMX ASoC driver");