Lines Matching +full:spdif +full:- +full:mclk
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * ALSA SoC SPDIF Audio Layer
170 * struct sun4i_spdif_quirks - Differences between SoC variants.
196 const struct sun4i_spdif_quirks *quirks = host->quirks; in sun4i_spdif_configure()
198 /* soft reset SPDIF */ in sun4i_spdif_configure()
199 regmap_write(host->regmap, SUN4I_SPDIF_CTL, SUN4I_SPDIF_CTL_RESET); in sun4i_spdif_configure()
202 regmap_update_bits(host->regmap, SUN4I_SPDIF_FCTL, in sun4i_spdif_configure()
203 quirks->val_fctl_ftx, quirks->val_fctl_ftx); in sun4i_spdif_configure()
206 regmap_write(host->regmap, SUN4I_SPDIF_TXCNT, 0); in sun4i_spdif_configure()
212 if (substream->runtime->channels == 1) in sun4i_snd_txctrl_on()
213 regmap_update_bits(host->regmap, SUN4I_SPDIF_TXCFG, in sun4i_snd_txctrl_on()
217 /* SPDIF TX ENABLE */ in sun4i_snd_txctrl_on()
218 regmap_update_bits(host->regmap, SUN4I_SPDIF_TXCFG, in sun4i_snd_txctrl_on()
222 regmap_update_bits(host->regmap, SUN4I_SPDIF_INT, in sun4i_snd_txctrl_on()
226 regmap_update_bits(host->regmap, SUN4I_SPDIF_CTL, in sun4i_snd_txctrl_on()
233 /* SPDIF TX DISABLE */ in sun4i_snd_txctrl_off()
234 regmap_update_bits(host->regmap, SUN4I_SPDIF_TXCFG, in sun4i_snd_txctrl_off()
238 regmap_update_bits(host->regmap, SUN4I_SPDIF_INT, in sun4i_snd_txctrl_off()
242 regmap_update_bits(host->regmap, SUN4I_SPDIF_CTL, in sun4i_snd_txctrl_off()
252 if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) in sun4i_spdif_startup()
253 return -EINVAL; in sun4i_spdif_startup()
268 unsigned int mclk = 0; in sun4i_spdif_hw_params() local
271 struct platform_device *pdev = host->pdev; in sun4i_spdif_hw_params()
283 return -EINVAL; in sun4i_spdif_hw_params()
297 return -EINVAL; in sun4i_spdif_hw_params()
305 mclk = 22579200; in sun4i_spdif_hw_params()
312 mclk = 24576000; in sun4i_spdif_hw_params()
315 return -EINVAL; in sun4i_spdif_hw_params()
318 ret = clk_set_rate(host->spdif_clk, mclk); in sun4i_spdif_hw_params()
320 dev_err(&pdev->dev, in sun4i_spdif_hw_params()
321 "Setting SPDIF clock rate for %d Hz failed!\n", mclk); in sun4i_spdif_hw_params()
325 regmap_update_bits(host->regmap, SUN4I_SPDIF_FCTL, in sun4i_spdif_hw_params()
349 return -EINVAL; in sun4i_spdif_hw_params()
356 reg_val |= SUN4I_SPDIF_TXCFG_TXRATIO(mclk_div - 1); in sun4i_spdif_hw_params()
357 regmap_write(host->regmap, SUN4I_SPDIF_TXCFG, reg_val); in sun4i_spdif_hw_params()
368 if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) in sun4i_spdif_trigger()
369 return -EINVAL; in sun4i_spdif_trigger()
385 ret = -EINVAL; in sun4i_spdif_trigger()
394 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; in sun4i_spdif_info()
395 uinfo->count = 1; in sun4i_spdif_info()
403 u8 *status = ucontrol->value.iec958.status; in sun4i_spdif_get_status_mask()
420 u8 *status = ucontrol->value.iec958.status; in sun4i_spdif_get_status()
424 spin_lock_irqsave(&host->lock, flags); in sun4i_spdif_get_status()
426 regmap_read(host->regmap, SUN4I_SPDIF_TXCHSTA0, ®); in sun4i_spdif_get_status()
433 regmap_read(host->regmap, SUN4I_SPDIF_TXCHSTA1, ®); in sun4i_spdif_get_status()
438 spin_unlock_irqrestore(&host->lock, flags); in sun4i_spdif_get_status()
448 u8 *status = ucontrol->value.iec958.status; in sun4i_spdif_set_status()
453 spin_lock_irqsave(&host->lock, flags); in sun4i_spdif_set_status()
460 regmap_update_bits_check(host->regmap, SUN4I_SPDIF_TXCHSTA0, in sun4i_spdif_set_status()
466 regmap_update_bits_check(host->regmap, SUN4I_SPDIF_TXCHSTA1, in sun4i_spdif_set_status()
473 regmap_update_bits(host->regmap, SUN4I_SPDIF_TXCFG, in sun4i_spdif_set_status()
477 spin_unlock_irqrestore(&host->lock, flags); in sun4i_spdif_set_status()
503 snd_soc_dai_init_dma_data(dai, &host->dma_params_tx, NULL); in sun4i_spdif_soc_dai_probe()
538 .name = "spdif",
566 .compatible = "allwinner,sun4i-a10-spdif",
570 .compatible = "allwinner,sun6i-a31-spdif",
574 .compatible = "allwinner,sun8i-h3-spdif",
578 .compatible = "allwinner,sun50i-h6-spdif",
582 .compatible = "allwinner,sun50i-h616-spdif",
591 .name = "sun4i-spdif",
599 clk_disable_unprepare(host->spdif_clk); in sun4i_spdif_runtime_suspend()
600 clk_disable_unprepare(host->apb_clk); in sun4i_spdif_runtime_suspend()
610 ret = clk_prepare_enable(host->spdif_clk); in sun4i_spdif_runtime_resume()
613 ret = clk_prepare_enable(host->apb_clk); in sun4i_spdif_runtime_resume()
615 clk_disable_unprepare(host->spdif_clk); in sun4i_spdif_runtime_resume()
628 dev_dbg(&pdev->dev, "Entered %s\n", __func__); in sun4i_spdif_probe()
630 host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL); in sun4i_spdif_probe()
632 return -ENOMEM; in sun4i_spdif_probe()
634 host->pdev = pdev; in sun4i_spdif_probe()
635 spin_lock_init(&host->lock); in sun4i_spdif_probe()
638 memcpy(&host->cpu_dai_drv, &sun4i_spdif_dai, sizeof(sun4i_spdif_dai)); in sun4i_spdif_probe()
639 host->cpu_dai_drv.name = dev_name(&pdev->dev); in sun4i_spdif_probe()
646 quirks = of_device_get_match_data(&pdev->dev); in sun4i_spdif_probe()
648 dev_err(&pdev->dev, "Failed to determine the quirks to use\n"); in sun4i_spdif_probe()
649 return -ENODEV; in sun4i_spdif_probe()
651 host->quirks = quirks; in sun4i_spdif_probe()
653 host->regmap = devm_regmap_init_mmio(&pdev->dev, base, in sun4i_spdif_probe()
657 host->apb_clk = devm_clk_get(&pdev->dev, "apb"); in sun4i_spdif_probe()
658 if (IS_ERR(host->apb_clk)) { in sun4i_spdif_probe()
659 dev_err(&pdev->dev, "failed to get a apb clock.\n"); in sun4i_spdif_probe()
660 return PTR_ERR(host->apb_clk); in sun4i_spdif_probe()
663 host->spdif_clk = devm_clk_get(&pdev->dev, "spdif"); in sun4i_spdif_probe()
664 if (IS_ERR(host->spdif_clk)) { in sun4i_spdif_probe()
665 dev_err(&pdev->dev, "failed to get a spdif clock.\n"); in sun4i_spdif_probe()
666 return PTR_ERR(host->spdif_clk); in sun4i_spdif_probe()
669 host->dma_params_tx.addr = res->start + quirks->reg_dac_txdata; in sun4i_spdif_probe()
670 host->dma_params_tx.maxburst = 8; in sun4i_spdif_probe()
671 host->dma_params_tx.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; in sun4i_spdif_probe()
675 if (quirks->has_reset) { in sun4i_spdif_probe()
676 host->rst = devm_reset_control_get_optional_exclusive(&pdev->dev, in sun4i_spdif_probe()
678 if (PTR_ERR(host->rst) == -EPROBE_DEFER) { in sun4i_spdif_probe()
679 ret = -EPROBE_DEFER; in sun4i_spdif_probe()
680 dev_err(&pdev->dev, "Failed to get reset: %d\n", ret); in sun4i_spdif_probe()
683 if (!IS_ERR(host->rst)) in sun4i_spdif_probe()
684 reset_control_deassert(host->rst); in sun4i_spdif_probe()
687 ret = devm_snd_soc_register_component(&pdev->dev, in sun4i_spdif_probe()
692 pm_runtime_enable(&pdev->dev); in sun4i_spdif_probe()
693 if (!pm_runtime_enabled(&pdev->dev)) { in sun4i_spdif_probe()
694 ret = sun4i_spdif_runtime_resume(&pdev->dev); in sun4i_spdif_probe()
699 ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); in sun4i_spdif_probe()
704 if (!pm_runtime_status_suspended(&pdev->dev)) in sun4i_spdif_probe()
705 sun4i_spdif_runtime_suspend(&pdev->dev); in sun4i_spdif_probe()
707 pm_runtime_disable(&pdev->dev); in sun4i_spdif_probe()
713 pm_runtime_disable(&pdev->dev); in sun4i_spdif_remove()
714 if (!pm_runtime_status_suspended(&pdev->dev)) in sun4i_spdif_remove()
715 sun4i_spdif_runtime_suspend(&pdev->dev); in sun4i_spdif_remove()
725 .name = "sun4i-spdif",
737 MODULE_DESCRIPTION("Allwinner sun4i SPDIF SoC Interface");
739 MODULE_ALIAS("platform:sun4i-spdif");