1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
11 #include <sound/soc-dai.h>
97 		axg_spdifout_enable(priv->map);  in axg_spdifout_trigger()
103 		axg_spdifout_disable(priv->map);  in axg_spdifout_trigger()
107 		return -EINVAL;  in axg_spdifout_trigger()
116 	regmap_update_bits(priv->map, SPDIFOUT_CTRL0, SPDIFOUT_CTRL0_VSET,  in axg_spdifout_mute()
137 		dev_err(dai->dev, "too many channels for spdif dai: %u\n",  in axg_spdifout_sample_fmt()
139 		return -EINVAL;  in axg_spdifout_sample_fmt()
142 	regmap_update_bits(priv->map, SPDIFOUT_CTRL0,  in axg_spdifout_sample_fmt()
152 		/* 4 samples of 16 bits - right justified */  in axg_spdifout_sample_fmt()
156 		/* 2 samples of 32 bits - right justified */  in axg_spdifout_sample_fmt()
160 		dev_err(dai->dev, "Unsupported physical width: %u\n",  in axg_spdifout_sample_fmt()
162 		return -EINVAL;  in axg_spdifout_sample_fmt()
165 	/* Position of the MSB in FIFO samples */  in axg_spdifout_sample_fmt()
166 	val |= SPDIFOUT_CTRL1_MSB_POS(params_width(params) - 1);  in axg_spdifout_sample_fmt()
168 	regmap_update_bits(priv->map, SPDIFOUT_CTRL1,  in axg_spdifout_sample_fmt()
172 	regmap_update_bits(priv->map, SPDIFOUT_CTRL0,  in axg_spdifout_sample_fmt()
190 		dev_err(dai->dev, "Creating IEC958 channel status failed %d\n",  in axg_spdifout_set_chsts()
196 	/* Setup channel status A bits [31 - 0]*/  in axg_spdifout_set_chsts()
197 	regmap_write(priv->map, SPDIFOUT_CHSTS0, val);  in axg_spdifout_set_chsts()
199 	/* Clear channel status A bits [191 - 32] */  in axg_spdifout_set_chsts()
201 	     offset += regmap_get_reg_stride(priv->map))  in axg_spdifout_set_chsts()
202 		regmap_write(priv->map, offset, 0);  in axg_spdifout_set_chsts()
204 	/* Setup channel status B bits [31 - 0]*/  in axg_spdifout_set_chsts()
205 	regmap_write(priv->map, SPDIFOUT_CHSTS6, val);  in axg_spdifout_set_chsts()
207 	/* Clear channel status B bits [191 - 32] */  in axg_spdifout_set_chsts()
209 	     offset += regmap_get_reg_stride(priv->map))  in axg_spdifout_set_chsts()
210 		regmap_write(priv->map, offset, 0);  in axg_spdifout_set_chsts()
224 	ret = clk_set_rate(priv->mclk, rate * 128);  in axg_spdifout_hw_params()
226 		dev_err(dai->dev, "failed to set spdif clock\n");  in axg_spdifout_hw_params()
232 		dev_err(dai->dev, "failed to setup sample format\n");  in axg_spdifout_hw_params()
238 		dev_err(dai->dev, "failed to setup channel status words\n");  in axg_spdifout_hw_params()
252 	ret = clk_prepare_enable(priv->pclk);  in axg_spdifout_startup()
254 		dev_err(dai->dev, "failed to enable pclk\n");  in axg_spdifout_startup()
259 	axg_spdifout_disable(priv->map);  in axg_spdifout_startup()
262 	regmap_update_bits(priv->map, SPDIFOUT_CTRL0,  in axg_spdifout_startup()
267 	regmap_update_bits(priv->map, SPDIFOUT_CTRL0,  in axg_spdifout_startup()
273 	regmap_write(priv->map, SPDIFOUT_SWAP, 0x10);  in axg_spdifout_startup()
283 	clk_disable_unprepare(priv->pclk);  in axg_spdifout_shutdown()
362 			ret = clk_prepare_enable(priv->mclk);  in axg_spdifout_set_bias_level()
367 			clk_disable_unprepare(priv->mclk);  in axg_spdifout_set_bias_level()
397 	{ .compatible = "amlogic,axg-spdifout", },
404 	struct device *dev = &pdev->dev;  in axg_spdifout_probe()
410 		return -ENOMEM;  in axg_spdifout_probe()
417 	priv->map = devm_regmap_init_mmio(dev, regs, &axg_spdifout_regmap_cfg);  in axg_spdifout_probe()
418 	if (IS_ERR(priv->map)) {  in axg_spdifout_probe()
420 			PTR_ERR(priv->map));  in axg_spdifout_probe()
421 		return PTR_ERR(priv->map);  in axg_spdifout_probe()
424 	priv->pclk = devm_clk_get(dev, "pclk");  in axg_spdifout_probe()
425 	if (IS_ERR(priv->pclk))  in axg_spdifout_probe()
426 		return dev_err_probe(dev, PTR_ERR(priv->pclk), "failed to get pclk\n");  in axg_spdifout_probe()
428 	priv->mclk = devm_clk_get(dev, "mclk");  in axg_spdifout_probe()
429 	if (IS_ERR(priv->mclk))  in axg_spdifout_probe()
430 		return dev_err_probe(dev, PTR_ERR(priv->mclk), "failed to get mclk\n");  in axg_spdifout_probe()
439 		.name = "axg-spdifout",