1 // SPDX-License-Identifier: GPL-2.0-only
3 // Freescale MPC5200 PSC in I2S mode
22  * PSC_I2S_RATES: sample rates supported by the I2S
24  * This driver currently only supports the PSC running in I2S slave mode,
32  * PSC_I2S_FORMATS: audio formats supported by the PSC I2S mode
45 	dev_dbg(psc_dma->dev, "%s(substream=%p) p_size=%i p_bytes=%i"  in psc_i2s_hw_params()
65 		dev_dbg(psc_dma->dev, "invalid format\n");  in psc_i2s_hw_params()
66 		return -EINVAL;  in psc_i2s_hw_params()
68 	out_be32(&psc_dma->psc_regs->sicr, psc_dma->sicr | mode);  in psc_i2s_hw_params()
91 	dev_dbg(psc_dma->dev, "psc_i2s_set_sysclk(cpu_dai=%p, dir=%i)\n",  in psc_i2s_set_sysclk()
93 	return (dir == SND_SOC_CLOCK_IN) ? 0 : -EINVAL;  in psc_i2s_set_sysclk()
102  * This driver only supports I2S mode.  Return an error if the format is
110 	dev_dbg(psc_dma->dev, "psc_i2s_set_fmt(cpu_dai=%p, format=%i)\n",  in psc_i2s_set_fmt()
112 	return (format == SND_SOC_DAIFMT_I2S) ? 0 : -EINVAL;  in psc_i2s_set_fmt()
115 /* ---------------------------------------------------------------------
118  * - Digital Audio Interface (DAI) template
119  * - create/destroy dai hooks
132 	.name = "mpc5200-psc-i2s.0",
134 		.stream_name = "I2S Playback",
141 		.stream_name = "I2S Capture",
151 	.name			= "mpc5200-i2s",
155 /* ---------------------------------------------------------------------
157  * - Probe/remove operations
158  * - OF device match table
164 	struct mpc52xx_psc __iomem *regs;  in psc_i2s_of_probe()  local
170 	rc = snd_soc_register_component(&op->dev, &psc_i2s_component,  in psc_i2s_of_probe()
177 	psc_dma = dev_get_drvdata(&op->dev);  in psc_i2s_of_probe()
178 	regs = psc_dma->psc_regs;  in psc_i2s_of_probe()
181 	psc_dma->sicr = MPC52xx_PSC_SICR_DTS1 | MPC52xx_PSC_SICR_I2S |  in psc_i2s_of_probe()
183 	out_be32(&psc_dma->psc_regs->sicr,  in psc_i2s_of_probe()
184 		 psc_dma->sicr | MPC52xx_PSC_SICR_SIM_CODEC_8);  in psc_i2s_of_probe()
188 	if (!of_get_property(op->dev.of_node, "codec-handle", NULL))  in psc_i2s_of_probe()
196 	while ((in_8(&regs->ipcr_acr.ipcr) & 0x80) != 0)  in psc_i2s_of_probe()
199 	while ((in_8(&regs->ipcr_acr.ipcr) & 0x80) == 0)  in psc_i2s_of_probe()
206 	out_8(&psc_dma->psc_regs->command,  in psc_i2s_of_probe()
216 	snd_soc_unregister_component(&op->dev);  in psc_i2s_of_remove()
221 	{ .compatible = "fsl,mpc5200-psc-i2s", },
222 	{ .compatible = "fsl,mpc5200b-psc-i2s", },
231 		.name = "mpc5200-psc-i2s",
239 MODULE_DESCRIPTION("Freescale MPC5200 PSC in I2S mode ASoC Driver");