250 static bool fsl_ssi_is_ac97(struct fsl_ssi_private *ssi_private)  in fsl_ssi_is_ac97()  argument
252 	return !!(ssi_private->dai_fmt & SND_SOC_DAIFMT_AC97);  in fsl_ssi_is_ac97()
255 static bool fsl_ssi_is_i2s_master(struct fsl_ssi_private *ssi_private)  in fsl_ssi_is_i2s_master()  argument
257 	return (ssi_private->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) ==  in fsl_ssi_is_i2s_master()
261 static bool fsl_ssi_is_i2s_cbm_cfs(struct fsl_ssi_private *ssi_private)  in fsl_ssi_is_i2s_cbm_cfs()  argument
263 	return (ssi_private->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) ==  in fsl_ssi_is_i2s_cbm_cfs()
280 	struct fsl_ssi_private *ssi_private = dev_id;  in fsl_ssi_isr()  local
281 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_isr()
291 	sisr2 = sisr & ssi_private->soc->sisr_write_mask;  in fsl_ssi_isr()
296 	fsl_ssi_dbg_isr(&ssi_private->dbg_stats, sisr);  in fsl_ssi_isr()
304 static void fsl_ssi_rxtx_config(struct fsl_ssi_private *ssi_private,  in fsl_ssi_rxtx_config()  argument
307 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_rxtx_config()
308 	struct fsl_ssi_rxtx_reg_val *vals = &ssi_private->rxtx_reg_val;  in fsl_ssi_rxtx_config()
354 static void fsl_ssi_config(struct fsl_ssi_private *ssi_private, bool enable,  in fsl_ssi_config()  argument
357 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_config()
375 	if (&ssi_private->rxtx_reg_val.rx == vals)  in fsl_ssi_config()
376 		avals = &ssi_private->rxtx_reg_val.tx;  in fsl_ssi_config()
378 		avals = &ssi_private->rxtx_reg_val.rx;  in fsl_ssi_config()
392 	if (ssi_private->soc->offline_config) {  in fsl_ssi_config()
395 			fsl_ssi_rxtx_config(ssi_private, enable);  in fsl_ssi_config()
442 static void fsl_ssi_rx_config(struct fsl_ssi_private *ssi_private, bool enable)  in fsl_ssi_rx_config()  argument
444 	fsl_ssi_config(ssi_private, enable, &ssi_private->rxtx_reg_val.rx);  in fsl_ssi_rx_config()
447 static void fsl_ssi_tx_config(struct fsl_ssi_private *ssi_private, bool enable)  in fsl_ssi_tx_config()  argument
449 	fsl_ssi_config(ssi_private, enable, &ssi_private->rxtx_reg_val.tx);  in fsl_ssi_tx_config()
457 static void fsl_ssi_setup_reg_vals(struct fsl_ssi_private *ssi_private)  in fsl_ssi_setup_reg_vals()  argument
459 	struct fsl_ssi_rxtx_reg_val *reg = &ssi_private->rxtx_reg_val;  in fsl_ssi_setup_reg_vals()
468 	if (!fsl_ssi_is_ac97(ssi_private)) {  in fsl_ssi_setup_reg_vals()
475 	if (ssi_private->use_dma) {  in fsl_ssi_setup_reg_vals()
487 static void fsl_ssi_setup_ac97(struct fsl_ssi_private *ssi_private)  in fsl_ssi_setup_ac97()  argument
489 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_setup_ac97()
530 	struct fsl_ssi_private *ssi_private =  in fsl_ssi_startup()  local
534 	ret = clk_prepare_enable(ssi_private->clk);  in fsl_ssi_startup()
543 	if (ssi_private->use_dual_fifo)  in fsl_ssi_startup()
558 	struct fsl_ssi_private *ssi_private =  in fsl_ssi_shutdown()  local
561 	clk_disable_unprepare(ssi_private->clk);  in fsl_ssi_shutdown()
578 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);  in fsl_ssi_set_bclk()  local
579 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_set_bclk()
580 	int synchronous = ssi_private->cpu_dai_drv.symmetric_rates, ret;  in fsl_ssi_set_bclk()
588 	if (ssi_private->bitclk_freq)  in fsl_ssi_set_bclk()
589 		freq = ssi_private->bitclk_freq;  in fsl_ssi_set_bclk()
594 	if (IS_ERR(ssi_private->baudclk))  in fsl_ssi_set_bclk()
597 	baudclk_is_used = ssi_private->baudclk_streams & ~(BIT(substream->stream));  in fsl_ssi_set_bclk()
609 			clkrate = clk_get_rate(ssi_private->baudclk);  in fsl_ssi_set_bclk()
611 			clkrate = clk_round_rate(ssi_private->baudclk, tmprate);  in fsl_ssi_set_bclk()
617 		if (clkrate * 5 > clk_get_rate(ssi_private->clk))  in fsl_ssi_set_bclk()
664 		ret = clk_set_rate(ssi_private->baudclk, baudrate);  in fsl_ssi_set_bclk()
677 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);  in fsl_ssi_set_dai_sysclk()  local
679 	ssi_private->bitclk_freq = freq;  in fsl_ssi_set_dai_sysclk()
700 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);  in fsl_ssi_hw_params()  local
701 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_hw_params()
717 	if (enabled && ssi_private->cpu_dai_drv.symmetric_rates)  in fsl_ssi_hw_params()
720 	if (fsl_ssi_is_i2s_master(ssi_private)) {  in fsl_ssi_hw_params()
726 		if (!(ssi_private->baudclk_streams & BIT(substream->stream))) {  in fsl_ssi_hw_params()
727 			ret = clk_prepare_enable(ssi_private->baudclk);  in fsl_ssi_hw_params()
731 			ssi_private->baudclk_streams |= BIT(substream->stream);  in fsl_ssi_hw_params()
735 	if (!fsl_ssi_is_ac97(ssi_private)) {  in fsl_ssi_hw_params()
741 		if (fsl_ssi_is_i2s_cbm_cfs(ssi_private) && sample_size == 16)  in fsl_ssi_hw_params()
745 			i2smode = ssi_private->i2s_mode;  in fsl_ssi_hw_params()
764 	    ssi_private->cpu_dai_drv.symmetric_rates)  in fsl_ssi_hw_params()
778 	struct fsl_ssi_private *ssi_private =  in fsl_ssi_hw_free()  local
781 	if (fsl_ssi_is_i2s_master(ssi_private) &&  in fsl_ssi_hw_free()
782 			ssi_private->baudclk_streams & BIT(substream->stream)) {  in fsl_ssi_hw_free()
783 		clk_disable_unprepare(ssi_private->baudclk);  in fsl_ssi_hw_free()
784 		ssi_private->baudclk_streams &= ~BIT(substream->stream);  in fsl_ssi_hw_free()
791 				struct fsl_ssi_private *ssi_private,  in _fsl_ssi_set_dai_fmt()  argument
794 	struct regmap *regs = ssi_private->regs;  in _fsl_ssi_set_dai_fmt()
798 	ssi_private->dai_fmt = fmt;  in _fsl_ssi_set_dai_fmt()
800 	if (fsl_ssi_is_i2s_master(ssi_private) && IS_ERR(ssi_private->baudclk)) {  in _fsl_ssi_set_dai_fmt()
805 	fsl_ssi_setup_reg_vals(ssi_private);  in _fsl_ssi_set_dai_fmt()
819 	ssi_private->i2s_mode = CCSR_SSI_SCR_NET;  in _fsl_ssi_set_dai_fmt()
825 			ssi_private->i2s_mode |= CCSR_SSI_SCR_I2S_MODE_MASTER;  in _fsl_ssi_set_dai_fmt()
834 			ssi_private->i2s_mode |= CCSR_SSI_SCR_I2S_MODE_SLAVE;  in _fsl_ssi_set_dai_fmt()
859 		ssi_private->i2s_mode |= CCSR_SSI_SCR_I2S_MODE_NORMAL;  in _fsl_ssi_set_dai_fmt()
864 	scr |= ssi_private->i2s_mode;  in _fsl_ssi_set_dai_fmt()
909 	if (ssi_private->cpu_dai_drv.symmetric_rates) {  in _fsl_ssi_set_dai_fmt()
930 	if (ssi_private->use_dma)  in _fsl_ssi_set_dai_fmt()
931 		wm = ssi_private->fifo_depth - 2;  in _fsl_ssi_set_dai_fmt()
933 		wm = ssi_private->fifo_depth;  in _fsl_ssi_set_dai_fmt()
939 	if (ssi_private->use_dual_fifo) {  in _fsl_ssi_set_dai_fmt()
949 		fsl_ssi_setup_ac97(ssi_private);  in _fsl_ssi_set_dai_fmt()
960 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);  in fsl_ssi_set_dai_fmt()  local
962 	return _fsl_ssi_set_dai_fmt(cpu_dai->dev, ssi_private, fmt);  in fsl_ssi_set_dai_fmt()
973 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai);  in fsl_ssi_set_dai_tdm_slot()  local
974 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_set_dai_tdm_slot()
1019 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(rtd->cpu_dai);  in fsl_ssi_trigger()  local
1020 	struct regmap *regs = ssi_private->regs;  in fsl_ssi_trigger()
1027 			fsl_ssi_tx_config(ssi_private, true);  in fsl_ssi_trigger()
1029 			fsl_ssi_rx_config(ssi_private, true);  in fsl_ssi_trigger()
1036 			fsl_ssi_tx_config(ssi_private, false);  in fsl_ssi_trigger()
1038 			fsl_ssi_rx_config(ssi_private, false);  in fsl_ssi_trigger()
1045 	if (fsl_ssi_is_ac97(ssi_private)) {  in fsl_ssi_trigger()
1057 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(dai);  in fsl_ssi_dai_probe()  local
1059 	if (ssi_private->soc->imx && ssi_private->use_dma) {  in fsl_ssi_dai_probe()
1060 		dai->playback_dma_data = &ssi_private->dma_params_tx;  in fsl_ssi_dai_probe()
1061 		dai->capture_dma_data = &ssi_private->dma_params_rx;  in fsl_ssi_dai_probe()
1189 		struct fsl_ssi_private *ssi_private, void __iomem *iomem)  in fsl_ssi_imx_probe()  argument
1195 	if (ssi_private->has_ipg_clk_name)  in fsl_ssi_imx_probe()
1196 		ssi_private->clk = devm_clk_get(&pdev->dev, "ipg");  in fsl_ssi_imx_probe()
1198 		ssi_private->clk = devm_clk_get(&pdev->dev, NULL);  in fsl_ssi_imx_probe()
1199 	if (IS_ERR(ssi_private->clk)) {  in fsl_ssi_imx_probe()
1200 		ret = PTR_ERR(ssi_private->clk);  in fsl_ssi_imx_probe()
1205 	if (!ssi_private->has_ipg_clk_name) {  in fsl_ssi_imx_probe()
1206 		ret = clk_prepare_enable(ssi_private->clk);  in fsl_ssi_imx_probe()
1216 	ssi_private->baudclk = devm_clk_get(&pdev->dev, "baud");  in fsl_ssi_imx_probe()
1217 	if (IS_ERR(ssi_private->baudclk))  in fsl_ssi_imx_probe()
1219 			 PTR_ERR(ssi_private->baudclk));  in fsl_ssi_imx_probe()
1225 	ssi_private->dma_params_tx.maxburst = ssi_private->fifo_depth - 2;  in fsl_ssi_imx_probe()
1226 	ssi_private->dma_params_rx.maxburst = ssi_private->fifo_depth - 2;  in fsl_ssi_imx_probe()
1227 	ssi_private->dma_params_tx.addr = ssi_private->ssi_phys + CCSR_SSI_STX0;  in fsl_ssi_imx_probe()
1228 	ssi_private->dma_params_rx.addr = ssi_private->ssi_phys + CCSR_SSI_SRX0;  in fsl_ssi_imx_probe()
1231 	if (ssi_private->use_dma && !ret && dmas[2] == IMX_DMATYPE_SSI_DUAL) {  in fsl_ssi_imx_probe()
1232 		ssi_private->use_dual_fifo = true;  in fsl_ssi_imx_probe()
1236 		ssi_private->dma_params_tx.maxburst &= ~0x1;  in fsl_ssi_imx_probe()
1237 		ssi_private->dma_params_rx.maxburst &= ~0x1;  in fsl_ssi_imx_probe()
1240 	if (!ssi_private->use_dma) {  in fsl_ssi_imx_probe()
1249 		ssi_private->fiq_params.irq = ssi_private->irq;  in fsl_ssi_imx_probe()
1250 		ssi_private->fiq_params.base = iomem;  in fsl_ssi_imx_probe()
1251 		ssi_private->fiq_params.dma_params_rx =  in fsl_ssi_imx_probe()
1252 			&ssi_private->dma_params_rx;  in fsl_ssi_imx_probe()
1253 		ssi_private->fiq_params.dma_params_tx =  in fsl_ssi_imx_probe()
1254 			&ssi_private->dma_params_tx;  in fsl_ssi_imx_probe()
1256 		ret = imx_pcm_fiq_init(pdev, &ssi_private->fiq_params);  in fsl_ssi_imx_probe()
1269 	if (!ssi_private->has_ipg_clk_name)  in fsl_ssi_imx_probe()
1270 		clk_disable_unprepare(ssi_private->clk);  in fsl_ssi_imx_probe()
1275 		struct fsl_ssi_private *ssi_private)  in fsl_ssi_imx_clean()  argument
1277 	if (!ssi_private->use_dma)  in fsl_ssi_imx_clean()
1279 	if (!ssi_private->has_ipg_clk_name)  in fsl_ssi_imx_clean()
1280 		clk_disable_unprepare(ssi_private->clk);  in fsl_ssi_imx_clean()
1285 	struct fsl_ssi_private *ssi_private;  in fsl_ssi_probe()  local
1306 	ssi_private = devm_kzalloc(&pdev->dev, sizeof(*ssi_private),  in fsl_ssi_probe()
1308 	if (!ssi_private) {  in fsl_ssi_probe()
1313 	ssi_private->soc = of_id->data;  in fsl_ssi_probe()
1318 			ssi_private->dai_fmt = SND_SOC_DAIFMT_AC97;  in fsl_ssi_probe()
1321 	ssi_private->use_dma = !of_property_read_bool(np,  in fsl_ssi_probe()
1324 	if (fsl_ssi_is_ac97(ssi_private)) {  in fsl_ssi_probe()
1325 		memcpy(&ssi_private->cpu_dai_drv, &fsl_ssi_ac97_dai,  in fsl_ssi_probe()
1328 		fsl_ac97_data = ssi_private;  in fsl_ssi_probe()
1333 		memcpy(&ssi_private->cpu_dai_drv, &fsl_ssi_dai_template,  in fsl_ssi_probe()
1336 	ssi_private->cpu_dai_drv.name = dev_name(&pdev->dev);  in fsl_ssi_probe()
1342 	ssi_private->ssi_phys = res->start;  in fsl_ssi_probe()
1346 		ssi_private->has_ipg_clk_name = false;  in fsl_ssi_probe()
1347 		ssi_private->regs = devm_regmap_init_mmio(&pdev->dev, iomem,  in fsl_ssi_probe()
1350 		ssi_private->has_ipg_clk_name = true;  in fsl_ssi_probe()
1351 		ssi_private->regs = devm_regmap_init_mmio_clk(&pdev->dev,  in fsl_ssi_probe()
1354 	if (IS_ERR(ssi_private->regs)) {  in fsl_ssi_probe()
1356 		return PTR_ERR(ssi_private->regs);  in fsl_ssi_probe()
1359 	ssi_private->irq = platform_get_irq(pdev, 0);  in fsl_ssi_probe()
1360 	if (ssi_private->irq < 0) {  in fsl_ssi_probe()
1362 		return ssi_private->irq;  in fsl_ssi_probe()
1367 		ssi_private->cpu_dai_drv.symmetric_rates = 1;  in fsl_ssi_probe()
1368 		ssi_private->cpu_dai_drv.symmetric_channels = 1;  in fsl_ssi_probe()
1369 		ssi_private->cpu_dai_drv.symmetric_samplebits = 1;  in fsl_ssi_probe()
1375 		ssi_private->fifo_depth = be32_to_cpup(iprop);  in fsl_ssi_probe()
1378 		ssi_private->fifo_depth = 8;  in fsl_ssi_probe()
1380 	dev_set_drvdata(&pdev->dev, ssi_private);  in fsl_ssi_probe()
1382 	if (ssi_private->soc->imx) {  in fsl_ssi_probe()
1383 		ret = fsl_ssi_imx_probe(pdev, ssi_private, iomem);  in fsl_ssi_probe()
1389 					      &ssi_private->cpu_dai_drv, 1);  in fsl_ssi_probe()
1395 	if (ssi_private->use_dma) {  in fsl_ssi_probe()
1396 		ret = devm_request_irq(&pdev->dev, ssi_private->irq,  in fsl_ssi_probe()
1398 					ssi_private);  in fsl_ssi_probe()
1401 					ssi_private->irq);  in fsl_ssi_probe()
1406 	ret = fsl_ssi_debugfs_create(&ssi_private->dbg_stats, &pdev->dev);  in fsl_ssi_probe()
1431 	ssi_private->pdev =  in fsl_ssi_probe()
1433 	if (IS_ERR(ssi_private->pdev)) {  in fsl_ssi_probe()
1434 		ret = PTR_ERR(ssi_private->pdev);  in fsl_ssi_probe()
1440 	if (ssi_private->dai_fmt)  in fsl_ssi_probe()
1441 		_fsl_ssi_set_dai_fmt(&pdev->dev, ssi_private,  in fsl_ssi_probe()
1442 				     ssi_private->dai_fmt);  in fsl_ssi_probe()
1447 	fsl_ssi_debugfs_remove(&ssi_private->dbg_stats);  in fsl_ssi_probe()
1450 	if (ssi_private->soc->imx)  in fsl_ssi_probe()
1451 		fsl_ssi_imx_clean(pdev, ssi_private);  in fsl_ssi_probe()
1458 	struct fsl_ssi_private *ssi_private = dev_get_drvdata(&pdev->dev);  in fsl_ssi_remove()  local
1460 	fsl_ssi_debugfs_remove(&ssi_private->dbg_stats);  in fsl_ssi_remove()
1462 	if (ssi_private->pdev)  in fsl_ssi_remove()
1463 		platform_device_unregister(ssi_private->pdev);  in fsl_ssi_remove()
1465 	if (ssi_private->soc->imx)  in fsl_ssi_remove()
1466 		fsl_ssi_imx_clean(pdev, ssi_private);  in fsl_ssi_remove()