5 // tegra210_amx.c - Tegra210 AMX driver
25  * received within these clock cycles, the AMX input channel gets
61 static void tegra210_amx_write_map_ram(struct tegra210_amx *amx)  in tegra210_amx_write_map_ram()  argument
65 	regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_CTRL + amx->soc_data->reg_offset,  in tegra210_amx_write_map_ram()
70 	for (i = 0; i < amx->soc_data->ram_depth; i++)  in tegra210_amx_write_map_ram()
71 		regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_DATA + amx->soc_data->reg_offset,  in tegra210_amx_write_map_ram()
72 			     amx->map[i]);  in tegra210_amx_write_map_ram()
74 	for (i = 0; i < amx->soc_data->byte_mask_size; i++)  in tegra210_amx_write_map_ram()
75 		regmap_write(amx->regmap,  in tegra210_amx_write_map_ram()
77 			     amx->byte_mask[i]);  in tegra210_amx_write_map_ram()
83 	struct tegra210_amx *amx = snd_soc_dai_get_drvdata(dai);  in tegra210_amx_startup()  local
87 	/* Ensure if AMX is disabled */  in tegra210_amx_startup()
88 	err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_STATUS, val,  in tegra210_amx_startup()
91 		dev_err(dai->dev, "failed to stop AMX, err = %d\n", err);  in tegra210_amx_startup()
101 	regmap_update_bits(amx->regmap, TEGRA210_AMX_SOFT_RESET,  in tegra210_amx_startup()
105 	err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_SOFT_RESET,  in tegra210_amx_startup()
108 		dev_err(dai->dev, "failed to reset AMX, err = %d\n", err);  in tegra210_amx_startup()
117 	struct tegra210_amx *amx = dev_get_drvdata(dev);  in tegra210_amx_runtime_suspend()  local
119 	regcache_cache_only(amx->regmap, true);  in tegra210_amx_runtime_suspend()
120 	regcache_mark_dirty(amx->regmap);  in tegra210_amx_runtime_suspend()
127 	struct tegra210_amx *amx = dev_get_drvdata(dev);  in tegra210_amx_runtime_resume()  local
129 	regcache_cache_only(amx->regmap, false);  in tegra210_amx_runtime_resume()
130 	regcache_sync(amx->regmap);  in tegra210_amx_runtime_resume()
132 	regmap_update_bits(amx->regmap,  in tegra210_amx_runtime_resume()
137 	tegra210_amx_write_map_ram(amx);  in tegra210_amx_runtime_resume()
146 	struct tegra210_amx *amx = snd_soc_dai_get_drvdata(dai);  in tegra210_amx_set_audio_cif()  local
174 	if (amx->soc_data->max_ch == TEGRA264_AMX_MAX_CHANNEL)  in tegra210_amx_set_audio_cif()
175 		tegra264_set_cif(amx->regmap, reg, &cif_conf);  in tegra210_amx_set_audio_cif()
177 		tegra_set_cif(amx->regmap, reg, &cif_conf);  in tegra210_amx_set_audio_cif()
186 	struct tegra210_amx *amx = snd_soc_dai_get_drvdata(dai);  in tegra210_amx_in_hw_params()  local
188 	if (amx->soc_data->auto_disable) {  in tegra210_amx_in_hw_params()
189 		regmap_write(amx->regmap,  in tegra210_amx_in_hw_params()
191 				amx->soc_data->reg_offset),  in tegra210_amx_in_hw_params()
193 		regmap_write(amx->regmap, TEGRA210_AMX_CYA + amx->soc_data->reg_offset, 1);  in tegra210_amx_in_hw_params()
214 	struct tegra210_amx *amx = snd_soc_component_get_drvdata(cmpnt);  in tegra210_amx_get_byte_map()  local
215 	unsigned char *bytes_map = (unsigned char *)amx->map;  in tegra210_amx_get_byte_map()
219 	enabled = amx->byte_mask[reg / 32] & (1 << (reg % 32));  in tegra210_amx_get_byte_map()
245 	struct tegra210_amx *amx = snd_soc_component_get_drvdata(cmpnt);  in tegra210_amx_put_byte_map()  local
246 	unsigned char *bytes_map = (unsigned char *)amx->map;  in tegra210_amx_put_byte_map()
249 	unsigned int mask_val = amx->byte_mask[reg / 32];  in tegra210_amx_put_byte_map()
256 	if (mask_val == amx->byte_mask[reg / 32])  in tegra210_amx_put_byte_map()
261 	amx->byte_mask[reg / 32] = mask_val;  in tegra210_amx_put_byte_map()
277 		.name = "AMX-RX-CIF" #id,			\
303 		.name = "AMX-TX-CIF",				\
505 	struct tegra210_amx *amx = snd_soc_component_get_drvdata(component);  in tegra210_amx_component_probe()  local
508 	if (amx->soc_data->num_controls) {  in tegra210_amx_component_probe()
509 		err = snd_soc_add_component_controls(component, amx->soc_data->controls,  in tegra210_amx_component_probe()
510 						     amx->soc_data->num_controls);  in tegra210_amx_component_probe()
512 			dev_err(component->dev, "can't add AMX controls, err: %d\n", err);  in tegra210_amx_component_probe()
715 	{ .compatible = "nvidia,tegra210-amx", .data = &soc_data_tegra210 },
716 	{ .compatible = "nvidia,tegra194-amx", .data = &soc_data_tegra194 },
717 	{ .compatible = "nvidia,tegra264-amx", .data = &soc_data_tegra264 },
725 	struct tegra210_amx *amx;  in tegra210_amx_platform_probe()  local
729 	amx = devm_kzalloc(dev, sizeof(*amx), GFP_KERNEL);  in tegra210_amx_platform_probe()
730 	if (!amx)  in tegra210_amx_platform_probe()
733 	amx->soc_data = device_get_match_data(dev);  in tegra210_amx_platform_probe()
735 	dev_set_drvdata(dev, amx);  in tegra210_amx_platform_probe()
741 	amx->regmap = devm_regmap_init_mmio(dev, regs,  in tegra210_amx_platform_probe()
742 					    amx->soc_data->regmap_conf);  in tegra210_amx_platform_probe()
743 	if (IS_ERR(amx->regmap)) {  in tegra210_amx_platform_probe()
745 		return PTR_ERR(amx->regmap);  in tegra210_amx_platform_probe()
748 	regcache_cache_only(amx->regmap, true);  in tegra210_amx_platform_probe()
750 	amx->map = devm_kzalloc(dev, amx->soc_data->ram_depth * sizeof(*amx->map),  in tegra210_amx_platform_probe()
752 	if (!amx->map)  in tegra210_amx_platform_probe()
755 	amx->byte_mask = devm_kzalloc(dev,  in tegra210_amx_platform_probe()
756 				      amx->soc_data->byte_mask_size * sizeof(*amx->byte_mask),  in tegra210_amx_platform_probe()
758 	if (!amx->byte_mask)  in tegra210_amx_platform_probe()
762 			amx->soc_data->max_ch;  in tegra210_amx_platform_probe()
768 		dev_err(dev, "can't register AMX component, err: %d\n", err);  in tegra210_amx_platform_probe()
790 		.name = "tegra210-amx",
800 MODULE_DESCRIPTION("Tegra210 AMX ASoC driver");