Lines Matching refs:i2s
245 struct stm32_i2s_data *i2s = (struct stm32_i2s_data *)devid;
246 struct platform_device *pdev = i2s->pdev;
251 regmap_read(i2s->regmap, STM32_I2S_SR_REG, &sr);
252 regmap_read(i2s->regmap, STM32_I2S_IER_REG, &ier);
261 regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG,
277 spin_lock(&i2s->irq_lock);
278 if (err && i2s->substream)
279 snd_pcm_stop_xrun(i2s->substream);
280 spin_unlock(&i2s->irq_lock);
334 struct stm32_i2s_data *i2s = snd_soc_dai_get_drvdata(cpu_dai);
388 i2s->ms_flg = I2S_MS_SLAVE;
391 i2s->ms_flg = I2S_MS_MASTER;
399 i2s->fmt = fmt;
400 return regmap_update_bits(i2s->regmap, STM32_I2S_CGFR_REG,
407 struct stm32_i2s_data *i2s = snd_soc_dai_get_drvdata(cpu_dai);
411 if ((dir == SND_SOC_CLOCK_OUT) && STM32_I2S_IS_MASTER(i2s)) {
412 i2s->mclk_rate = freq;
415 return regmap_update_bits(i2s->regmap, STM32_I2S_CGFR_REG,
425 struct stm32_i2s_data *i2s = snd_soc_dai_get_drvdata(cpu_dai);
434 clk_set_parent(i2s->i2sclk, i2s->x11kclk);
436 clk_set_parent(i2s->i2sclk, i2s->x8kclk);
437 i2s_clock_rate = clk_get_rate(i2s->i2sclk);
441 * i2s mode : mclk_ratio = 256
445 * i2s mode : div = i2s_clk / (mclk_ratio * ws)
448 * i2s mode : div = i2s_clk / (nb_bits x ws)
451 if (i2s->mclk_rate) {
452 tmp = DIV_ROUND_CLOSEST(i2s_clock_rate, i2s->mclk_rate);
455 if ((i2s->fmt & SND_SOC_DAIFMT_FORMAT_MASK) ==
460 ret = regmap_read(i2s->regmap, STM32_I2S_CGFR_REG, &cgfr);
491 ret = regmap_update_bits(i2s->regmap, STM32_I2S_CGFR_REG,
497 return regmap_update_bits(i2s->regmap, STM32_I2S_CFG2_REG,
505 struct stm32_i2s_data *i2s = snd_soc_dai_get_drvdata(cpu_dai);
526 if (STM32_I2S_IS_SLAVE(i2s)) {
537 ret = regmap_update_bits(i2s->regmap, STM32_I2S_CGFR_REG,
545 return regmap_update_bits(i2s->regmap, STM32_I2S_CFG1_REG,
552 struct stm32_i2s_data *i2s = snd_soc_dai_get_drvdata(cpu_dai);
556 spin_lock_irqsave(&i2s->irq_lock, flags);
557 i2s->substream = substream;
558 spin_unlock_irqrestore(&i2s->irq_lock, flags);
560 if ((i2s->fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_DSP_A)
564 ret = clk_prepare_enable(i2s->i2sclk);
570 return regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG,
578 struct stm32_i2s_data *i2s = snd_soc_dai_get_drvdata(cpu_dai);
587 if (STM32_I2S_IS_MASTER(i2s))
596 struct stm32_i2s_data *i2s = snd_soc_dai_get_drvdata(cpu_dai);
605 /* Enable i2s */
610 regmap_update_bits(i2s->regmap, STM32_I2S_CFG1_REG,
613 ret = regmap_update_bits(i2s->regmap, STM32_I2S_CR1_REG,
620 ret = regmap_write_bits(i2s->regmap, STM32_I2S_CR1_REG,
627 regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG,
630 spin_lock(&i2s->lock_fd);
631 i2s->refcount++;
637 if (STM32_I2S_IS_MASTER(i2s) && i2s->refcount == 1)
639 regmap_write(i2s->regmap,
642 spin_unlock(&i2s->lock_fd);
644 if (STM32_I2S_IS_SLAVE(i2s))
647 regmap_update_bits(i2s->regmap, STM32_I2S_IER_REG, ier, ier);
656 regmap_update_bits(i2s->regmap, STM32_I2S_IER_REG,
660 regmap_update_bits(i2s->regmap, STM32_I2S_IER_REG,
664 spin_lock(&i2s->lock_fd);
665 i2s->refcount--;
666 if (i2s->refcount) {
667 spin_unlock(&i2s->lock_fd);
671 ret = regmap_update_bits(i2s->regmap, STM32_I2S_CR1_REG,
675 spin_unlock(&i2s->lock_fd);
678 spin_unlock(&i2s->lock_fd);
681 regmap_update_bits(i2s->regmap, STM32_I2S_CFG1_REG,
694 struct stm32_i2s_data *i2s = snd_soc_dai_get_drvdata(cpu_dai);
697 regmap_update_bits(i2s->regmap, STM32_I2S_CGFR_REG,
700 clk_disable_unprepare(i2s->i2sclk);
702 spin_lock_irqsave(&i2s->irq_lock, flags);
703 i2s->substream = NULL;
704 spin_unlock_irqrestore(&i2s->irq_lock, flags);
709 struct stm32_i2s_data *i2s = dev_get_drvdata(cpu_dai->dev);
710 struct snd_dmaengine_dai_dma_data *dma_data_tx = &i2s->dma_data_tx;
711 struct snd_dmaengine_dai_dma_data *dma_data_rx = &i2s->dma_data_rx;
715 dma_data_tx->addr = (dma_addr_t)(i2s->phys_addr) + STM32_I2S_TXDR_REG;
718 dma_data_rx->addr = (dma_addr_t)(i2s->phys_addr) + STM32_I2S_RXDR_REG;
764 .name = "stm32-i2s",
779 struct stm32_i2s_data *i2s)
793 i2s->dai_drv = dai_ptr;
800 .compatible = "st,stm32h7-i2s",
807 struct stm32_i2s_data *i2s)
820 i2s->regmap_conf = (const struct regmap_config *)of_id->data;
825 i2s->base = devm_ioremap_resource(&pdev->dev, res);
826 if (IS_ERR(i2s->base))
827 return PTR_ERR(i2s->base);
829 i2s->phys_addr = res->start;
832 i2s->pclk = devm_clk_get(&pdev->dev, "pclk");
833 if (IS_ERR(i2s->pclk)) {
834 if (PTR_ERR(i2s->pclk) != -EPROBE_DEFER)
836 PTR_ERR(i2s->pclk));
837 return PTR_ERR(i2s->pclk);
840 i2s->i2sclk = devm_clk_get(&pdev->dev, "i2sclk");
841 if (IS_ERR(i2s->i2sclk)) {
842 if (PTR_ERR(i2s->i2sclk) != -EPROBE_DEFER)
844 PTR_ERR(i2s->i2sclk));
845 return PTR_ERR(i2s->i2sclk);
848 i2s->x8kclk = devm_clk_get(&pdev->dev, "x8k");
849 if (IS_ERR(i2s->x8kclk)) {
850 if (PTR_ERR(i2s->x8kclk) != -EPROBE_DEFER)
852 PTR_ERR(i2s->x8kclk));
853 return PTR_ERR(i2s->x8kclk);
856 i2s->x11kclk = devm_clk_get(&pdev->dev, "x11k");
857 if (IS_ERR(i2s->x11kclk)) {
858 if (PTR_ERR(i2s->x11kclk) != -EPROBE_DEFER)
860 PTR_ERR(i2s->x11kclk));
861 return PTR_ERR(i2s->x11kclk);
870 dev_name(&pdev->dev), i2s);
901 struct stm32_i2s_data *i2s;
905 i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL);
906 if (!i2s)
909 ret = stm32_i2s_parse_dt(pdev, i2s);
913 i2s->pdev = pdev;
914 i2s->ms_flg = I2S_MS_NOT_SET;
915 spin_lock_init(&i2s->lock_fd);
916 spin_lock_init(&i2s->irq_lock);
917 platform_set_drvdata(pdev, i2s);
919 ret = stm32_i2s_dais_init(pdev, i2s);
923 i2s->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "pclk",
924 i2s->base, i2s->regmap_conf);
925 if (IS_ERR(i2s->regmap)) {
926 if (PTR_ERR(i2s->regmap) != -EPROBE_DEFER)
928 PTR_ERR(i2s->regmap));
929 return PTR_ERR(i2s->regmap);
940 i2s->dai_drv, 1);
946 /* Set SPI/I2S in i2s mode */
947 ret = regmap_update_bits(i2s->regmap, STM32_I2S_CGFR_REG,
952 ret = regmap_read(i2s->regmap, STM32_I2S_IPIDR_REG, &val);
957 ret = regmap_read(i2s->regmap, STM32_I2S_HWCFGR_REG, &val);
963 "Device does not support i2s mode\n");
968 ret = regmap_read(i2s->regmap, STM32_I2S_VERR_REG, &val);
990 struct stm32_i2s_data *i2s = dev_get_drvdata(dev);
992 regcache_cache_only(i2s->regmap, true);
993 regcache_mark_dirty(i2s->regmap);
1000 struct stm32_i2s_data *i2s = dev_get_drvdata(dev);
1002 regcache_cache_only(i2s->regmap, false);
1003 return regcache_sync(i2s->regmap);
1013 .name = "st,stm32-i2s",
1023 MODULE_DESCRIPTION("STM32 Soc i2s Interface");
1025 MODULE_ALIAS("platform:stm32-i2s");