316 static bool fsl_ssi_is_ac97(struct fsl_ssi_private *ssi_private)  in fsl_ssi_is_ac97()  argument
318 	return (ssi_private->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) ==  in fsl_ssi_is_ac97()
322 static bool fsl_ssi_is_i2s_master(struct fsl_ssi_private *ssi_private)  in fsl_ssi_is_i2s_master()  argument
324 	return (ssi_private->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) ==  in fsl_ssi_is_i2s_master()
328 static bool fsl_ssi_is_i2s_cbm_cfs(struct fsl_ssi_private *ssi_private)  in fsl_ssi_is_i2s_cbm_cfs()  argument
330 	return (ssi_private->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) ==  in fsl_ssi_is_i2s_cbm_cfs()
347 	struct fsl_ssi_private *ssi_private = dev_id;  in fsl_ssi_isr()  local
348 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_isr()
358 	sisr2 = sisr & ssi_private->soc->sisr_write_mask;  in fsl_ssi_isr()
363 	fsl_ssi_dbg_isr(&ssi_private->dbg_stats, sisr);  in fsl_ssi_isr()
371 static void fsl_ssi_rxtx_config(struct fsl_ssi_private *ssi_private,  in fsl_ssi_rxtx_config()  argument
374 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_rxtx_config()
375 	struct fsl_ssi_rxtx_reg_val *vals = &ssi_private->rxtx_reg_val;  in fsl_ssi_rxtx_config()
421 static void fsl_ssi_config(struct fsl_ssi_private *ssi_private, bool enable,  in fsl_ssi_config()  argument
424 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_config()
442 	if (&ssi_private->rxtx_reg_val.rx == vals)  in fsl_ssi_config()
443 		avals = &ssi_private->rxtx_reg_val.tx;  in fsl_ssi_config()
445 		avals = &ssi_private->rxtx_reg_val.rx;  in fsl_ssi_config()
459 	if (ssi_private->soc->offline_config) {  in fsl_ssi_config()
462 			fsl_ssi_rxtx_config(ssi_private, enable);  in fsl_ssi_config()
509 static void fsl_ssi_rx_config(struct fsl_ssi_private *ssi_private, bool enable)  in fsl_ssi_rx_config()  argument
511 	fsl_ssi_config(ssi_private, enable, &ssi_private->rxtx_reg_val.rx);  in fsl_ssi_rx_config()
514 static void fsl_ssi_tx_config(struct fsl_ssi_private *ssi_private, bool enable)  in fsl_ssi_tx_config()  argument
516 	fsl_ssi_config(ssi_private, enable, &ssi_private->rxtx_reg_val.tx);  in fsl_ssi_tx_config()
524 static void fsl_ssi_setup_reg_vals(struct fsl_ssi_private *ssi_private)  in fsl_ssi_setup_reg_vals()  argument
526 	struct fsl_ssi_rxtx_reg_val *reg = &ssi_private->rxtx_reg_val;  in fsl_ssi_setup_reg_vals()
535 	if (!fsl_ssi_is_ac97(ssi_private)) {  in fsl_ssi_setup_reg_vals()
542 	if (ssi_private->use_dma) {  in fsl_ssi_setup_reg_vals()
554 static void fsl_ssi_setup_ac97(struct fsl_ssi_private *ssi_private)  in fsl_ssi_setup_ac97()  argument
556 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_setup_ac97()
597 	struct fsl_ssi_private *ssi_private =  in fsl_ssi_startup()  local
601 	ret = clk_prepare_enable(ssi_private->clk);  in fsl_ssi_startup()
610 	if (ssi_private->use_dual_fifo)  in fsl_ssi_startup()
625 	struct fsl_ssi_private *ssi_private =  in fsl_ssi_shutdown()  local
628 	clk_disable_unprepare(ssi_private->clk);  in fsl_ssi_shutdown()
645 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);  in fsl_ssi_set_bclk()  local
646 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_set_bclk()
647 	int synchronous = ssi_private->cpu_dai_drv.symmetric_rates, ret;  in fsl_ssi_set_bclk()
655 	if (ssi_private->bitclk_freq)  in fsl_ssi_set_bclk()
656 		freq = ssi_private->bitclk_freq;  in fsl_ssi_set_bclk()
661 	if (IS_ERR(ssi_private->baudclk))  in fsl_ssi_set_bclk()
664 	baudclk_is_used = ssi_private->baudclk_streams & ~(BIT(substream->stream));  in fsl_ssi_set_bclk()
676 			clkrate = clk_get_rate(ssi_private->baudclk);  in fsl_ssi_set_bclk()
678 			clkrate = clk_round_rate(ssi_private->baudclk, tmprate);  in fsl_ssi_set_bclk()
684 		if (clkrate * 5 > clk_get_rate(ssi_private->clk))  in fsl_ssi_set_bclk()
731 		ret = clk_set_rate(ssi_private->baudclk, baudrate);  in fsl_ssi_set_bclk()
744 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);  in fsl_ssi_set_dai_sysclk()  local
746 	ssi_private->bitclk_freq = freq;  in fsl_ssi_set_dai_sysclk()
767 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);  in fsl_ssi_hw_params()  local
768 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_hw_params()
784 	if (enabled && ssi_private->cpu_dai_drv.symmetric_rates)  in fsl_ssi_hw_params()
787 	if (fsl_ssi_is_i2s_master(ssi_private)) {  in fsl_ssi_hw_params()
793 		if (!(ssi_private->baudclk_streams & BIT(substream->stream))) {  in fsl_ssi_hw_params()
794 			ret = clk_prepare_enable(ssi_private->baudclk);  in fsl_ssi_hw_params()
798 			ssi_private->baudclk_streams |= BIT(substream->stream);  in fsl_ssi_hw_params()
802 	if (!fsl_ssi_is_ac97(ssi_private)) {  in fsl_ssi_hw_params()
808 		if (fsl_ssi_is_i2s_cbm_cfs(ssi_private) && sample_size == 16)  in fsl_ssi_hw_params()
812 			i2smode = ssi_private->i2s_mode;  in fsl_ssi_hw_params()
831 	    ssi_private->cpu_dai_drv.symmetric_rates)  in fsl_ssi_hw_params()
845 	struct fsl_ssi_private *ssi_private =  in fsl_ssi_hw_free()  local
848 	if (fsl_ssi_is_i2s_master(ssi_private) &&  in fsl_ssi_hw_free()
849 			ssi_private->baudclk_streams & BIT(substream->stream)) {  in fsl_ssi_hw_free()
850 		clk_disable_unprepare(ssi_private->baudclk);  in fsl_ssi_hw_free()
851 		ssi_private->baudclk_streams &= ~BIT(substream->stream);  in fsl_ssi_hw_free()
858 				struct fsl_ssi_private *ssi_private,  in _fsl_ssi_set_dai_fmt()  argument
861 	struct regmap *regs = ssi_private->regs;  in _fsl_ssi_set_dai_fmt()
865 	ssi_private->dai_fmt = fmt;  in _fsl_ssi_set_dai_fmt()
867 	if (fsl_ssi_is_i2s_master(ssi_private) && IS_ERR(ssi_private->baudclk)) {  in _fsl_ssi_set_dai_fmt()
872 	fsl_ssi_setup_reg_vals(ssi_private);  in _fsl_ssi_set_dai_fmt()
886 	ssi_private->i2s_mode = CCSR_SSI_SCR_NET;  in _fsl_ssi_set_dai_fmt()
892 			ssi_private->i2s_mode |= CCSR_SSI_SCR_I2S_MODE_MASTER;  in _fsl_ssi_set_dai_fmt()
901 			ssi_private->i2s_mode |= CCSR_SSI_SCR_I2S_MODE_SLAVE;  in _fsl_ssi_set_dai_fmt()
926 		ssi_private->i2s_mode |= CCSR_SSI_SCR_I2S_MODE_NORMAL;  in _fsl_ssi_set_dai_fmt()
931 	scr |= ssi_private->i2s_mode;  in _fsl_ssi_set_dai_fmt()
970 		if (!fsl_ssi_is_ac97(ssi_private))  in _fsl_ssi_set_dai_fmt()
977 	if (ssi_private->cpu_dai_drv.symmetric_rates  in _fsl_ssi_set_dai_fmt()
978 			|| fsl_ssi_is_ac97(ssi_private)) {  in _fsl_ssi_set_dai_fmt()
999 	if (ssi_private->use_dma)  in _fsl_ssi_set_dai_fmt()
1000 		wm = ssi_private->fifo_depth - 2;  in _fsl_ssi_set_dai_fmt()
1002 		wm = ssi_private->fifo_depth;  in _fsl_ssi_set_dai_fmt()
1008 	if (ssi_private->use_dual_fifo) {  in _fsl_ssi_set_dai_fmt()
1018 		fsl_ssi_setup_ac97(ssi_private);  in _fsl_ssi_set_dai_fmt()
1029 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);  in fsl_ssi_set_dai_fmt()  local
1031 	return _fsl_ssi_set_dai_fmt(cpu_dai->dev, ssi_private, fmt);  in fsl_ssi_set_dai_fmt()
1042 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);  in fsl_ssi_set_dai_tdm_slot()  local
1043 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_set_dai_tdm_slot()
1088 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(rtd->cpu_dai);  in fsl_ssi_trigger()  local
1089 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_trigger()
1096 			fsl_ssi_tx_config(ssi_private, true);  in fsl_ssi_trigger()
1098 			fsl_ssi_rx_config(ssi_private, true);  in fsl_ssi_trigger()
1105 			fsl_ssi_tx_config(ssi_private, false);  in fsl_ssi_trigger()
1107 			fsl_ssi_rx_config(ssi_private, false);  in fsl_ssi_trigger()
1114 	if (fsl_ssi_is_ac97(ssi_private)) {  in fsl_ssi_trigger()
1126 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(dai);  in fsl_ssi_dai_probe()  local
1128 	if (ssi_private->soc->imx && ssi_private->use_dma) {  in fsl_ssi_dai_probe()
1129 		dai->playback_dma_data = &ssi_private->dma_params_tx;  in fsl_ssi_dai_probe()
1130 		dai->capture_dma_data = &ssi_private->dma_params_rx;  in fsl_ssi_dai_probe()
1278 		struct fsl_ssi_private *ssi_private, void __iomem *iomem)  in fsl_ssi_imx_probe()  argument
1284 	if (ssi_private->has_ipg_clk_name)  in fsl_ssi_imx_probe()
1285 		ssi_private->clk = devm_clk_get(&pdev->dev, "ipg");  in fsl_ssi_imx_probe()
1287 		ssi_private->clk = devm_clk_get(&pdev->dev, NULL);  in fsl_ssi_imx_probe()
1288 	if (IS_ERR(ssi_private->clk)) {  in fsl_ssi_imx_probe()
1289 		ret = PTR_ERR(ssi_private->clk);  in fsl_ssi_imx_probe()
1294 	if (!ssi_private->has_ipg_clk_name) {  in fsl_ssi_imx_probe()
1295 		ret = clk_prepare_enable(ssi_private->clk);  in fsl_ssi_imx_probe()
1305 	ssi_private->baudclk = devm_clk_get(&pdev->dev, "baud");  in fsl_ssi_imx_probe()
1306 	if (IS_ERR(ssi_private->baudclk))  in fsl_ssi_imx_probe()
1308 			 PTR_ERR(ssi_private->baudclk));  in fsl_ssi_imx_probe()
1314 	ssi_private->dma_params_tx.maxburst = ssi_private->fifo_depth - 2;  in fsl_ssi_imx_probe()
1315 	ssi_private->dma_params_rx.maxburst = ssi_private->fifo_depth - 2;  in fsl_ssi_imx_probe()
1316 	ssi_private->dma_params_tx.addr = ssi_private->ssi_phys + CCSR_SSI_STX0;  in fsl_ssi_imx_probe()
1317 	ssi_private->dma_params_rx.addr = ssi_private->ssi_phys + CCSR_SSI_SRX0;  in fsl_ssi_imx_probe()
1320 	if (ssi_private->use_dma && !ret && dmas[2] == IMX_DMATYPE_SSI_DUAL) {  in fsl_ssi_imx_probe()
1321 		ssi_private->use_dual_fifo = true;  in fsl_ssi_imx_probe()
1325 		ssi_private->dma_params_tx.maxburst &= ~0x1;  in fsl_ssi_imx_probe()
1326 		ssi_private->dma_params_rx.maxburst &= ~0x1;  in fsl_ssi_imx_probe()
1329 	if (!ssi_private->use_dma) {  in fsl_ssi_imx_probe()
1338 		ssi_private->fiq_params.irq = ssi_private->irq;  in fsl_ssi_imx_probe()
1339 		ssi_private->fiq_params.base = iomem;  in fsl_ssi_imx_probe()
1340 		ssi_private->fiq_params.dma_params_rx =  in fsl_ssi_imx_probe()
1341 			&ssi_private->dma_params_rx;  in fsl_ssi_imx_probe()
1342 		ssi_private->fiq_params.dma_params_tx =  in fsl_ssi_imx_probe()
1343 			&ssi_private->dma_params_tx;  in fsl_ssi_imx_probe()
1345 		ret = imx_pcm_fiq_init(pdev, &ssi_private->fiq_params);  in fsl_ssi_imx_probe()
1358 	if (!ssi_private->has_ipg_clk_name)  in fsl_ssi_imx_probe()
1359 		clk_disable_unprepare(ssi_private->clk);  in fsl_ssi_imx_probe()
1364 		struct fsl_ssi_private *ssi_private)  in fsl_ssi_imx_clean()  argument
1366 	if (!ssi_private->use_dma)  in fsl_ssi_imx_clean()
1368 	if (!ssi_private->has_ipg_clk_name)  in fsl_ssi_imx_clean()
1369 		clk_disable_unprepare(ssi_private->clk);  in fsl_ssi_imx_clean()
1374 	struct fsl_ssi_private *ssi_private;  in fsl_ssi_probe()  local
1388 	ssi_private = devm_kzalloc(&pdev->dev, sizeof(*ssi_private),  in fsl_ssi_probe()
1390 	if (!ssi_private) {  in fsl_ssi_probe()
1395 	ssi_private->soc = of_id->data;  in fsl_ssi_probe()
1400 			ssi_private->dai_fmt = SND_SOC_DAIFMT_AC97;  in fsl_ssi_probe()
1403 	ssi_private->use_dma = !of_property_read_bool(np,  in fsl_ssi_probe()
1406 	if (fsl_ssi_is_ac97(ssi_private)) {  in fsl_ssi_probe()
1407 		memcpy(&ssi_private->cpu_dai_drv, &fsl_ssi_ac97_dai,  in fsl_ssi_probe()
1410 		fsl_ac97_data = ssi_private;  in fsl_ssi_probe()
1419 		memcpy(&ssi_private->cpu_dai_drv, &fsl_ssi_dai_template,  in fsl_ssi_probe()
1422 	ssi_private->cpu_dai_drv.name = dev_name(&pdev->dev);  in fsl_ssi_probe()
1428 	ssi_private->ssi_phys = res->start;  in fsl_ssi_probe()
1432 		ssi_private->has_ipg_clk_name = false;  in fsl_ssi_probe()
1433 		ssi_private->regs = devm_regmap_init_mmio(&pdev->dev, iomem,  in fsl_ssi_probe()
1436 		ssi_private->has_ipg_clk_name = true;  in fsl_ssi_probe()
1437 		ssi_private->regs = devm_regmap_init_mmio_clk(&pdev->dev,  in fsl_ssi_probe()
1440 	if (IS_ERR(ssi_private->regs)) {  in fsl_ssi_probe()
1442 		return PTR_ERR(ssi_private->regs);  in fsl_ssi_probe()
1445 	ssi_private->irq = platform_get_irq(pdev, 0);  in fsl_ssi_probe()
1446 	if (ssi_private->irq < 0) {  in fsl_ssi_probe()
1448 		return ssi_private->irq;  in fsl_ssi_probe()
1453 		if (!fsl_ssi_is_ac97(ssi_private))  in fsl_ssi_probe()
1454 			ssi_private->cpu_dai_drv.symmetric_rates = 1;  in fsl_ssi_probe()
1456 		ssi_private->cpu_dai_drv.symmetric_channels = 1;  in fsl_ssi_probe()
1457 		ssi_private->cpu_dai_drv.symmetric_samplebits = 1;  in fsl_ssi_probe()
1463 		ssi_private->fifo_depth = be32_to_cpup(iprop);  in fsl_ssi_probe()
1466 		ssi_private->fifo_depth = 8;  in fsl_ssi_probe()
1468 	dev_set_drvdata(&pdev->dev, ssi_private);  in fsl_ssi_probe()
1470 	if (ssi_private->soc->imx) {  in fsl_ssi_probe()
1471 		ret = fsl_ssi_imx_probe(pdev, ssi_private, iomem);  in fsl_ssi_probe()
1477 					      &ssi_private->cpu_dai_drv, 1);  in fsl_ssi_probe()
1483 	if (ssi_private->use_dma) {  in fsl_ssi_probe()
1484 		ret = devm_request_irq(&pdev->dev, ssi_private->irq,  in fsl_ssi_probe()
1486 					ssi_private);  in fsl_ssi_probe()
1489 					ssi_private->irq);  in fsl_ssi_probe()
1494 	ret = fsl_ssi_debugfs_create(&ssi_private->dbg_stats, &pdev->dev);  in fsl_ssi_probe()
1519 	ssi_private->pdev =  in fsl_ssi_probe()
1521 	if (IS_ERR(ssi_private->pdev)) {  in fsl_ssi_probe()
1522 		ret = PTR_ERR(ssi_private->pdev);  in fsl_ssi_probe()
1528 	if (ssi_private->dai_fmt)  in fsl_ssi_probe()
1529 		_fsl_ssi_set_dai_fmt(&pdev->dev, ssi_private,  in fsl_ssi_probe()
1530 				     ssi_private->dai_fmt);  in fsl_ssi_probe()
1532 	if (fsl_ssi_is_ac97(ssi_private)) {  in fsl_ssi_probe()
1541 		ssi_private->pdev =  in fsl_ssi_probe()
1544 		if (IS_ERR(ssi_private->pdev)) {  in fsl_ssi_probe()
1545 			ret = PTR_ERR(ssi_private->pdev);  in fsl_ssi_probe()
1556 	fsl_ssi_debugfs_remove(&ssi_private->dbg_stats);  in fsl_ssi_probe()
1559 	if (ssi_private->soc->imx)  in fsl_ssi_probe()
1560 		fsl_ssi_imx_clean(pdev, ssi_private);  in fsl_ssi_probe()
1567 	struct fsl_ssi_private *ssi_private = dev_get_drvdata(&pdev->dev);  in fsl_ssi_remove()  local
1569 	fsl_ssi_debugfs_remove(&ssi_private->dbg_stats);  in fsl_ssi_remove()
1571 	if (ssi_private->pdev)  in fsl_ssi_remove()
1572 		platform_device_unregister(ssi_private->pdev);  in fsl_ssi_remove()
1574 	if (ssi_private->soc->imx)  in fsl_ssi_remove()
1575 		fsl_ssi_imx_clean(pdev, ssi_private);  in fsl_ssi_remove()
1577 	if (fsl_ssi_is_ac97(ssi_private))  in fsl_ssi_remove()
1586 	struct fsl_ssi_private *ssi_private = dev_get_drvdata(dev);  in fsl_ssi_suspend()  local
1587 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_suspend()
1590 			&ssi_private->regcache_sfcsr);  in fsl_ssi_suspend()
1600 	struct fsl_ssi_private *ssi_private = dev_get_drvdata(dev);  in fsl_ssi_resume()  local
1601 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_resume()
1608 			ssi_private->regcache_sfcsr);  in fsl_ssi_resume()