51 	struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);  in mxs_saif_set_dai_sysclk()  local
55 		saif->mclk = freq;  in mxs_saif_set_dai_sysclk()
69 static inline struct mxs_saif *mxs_saif_get_master(struct mxs_saif * saif)  in mxs_saif_get_master()  argument
71 	return mxs_saif[saif->master_id];  in mxs_saif_get_master()
77 static int mxs_saif_set_clk(struct mxs_saif *saif,  in mxs_saif_set_clk()  argument
85 	dev_dbg(saif->dev, "mclk %d rate %d\n", mclk, rate);  in mxs_saif_set_clk()
88 	master_saif = mxs_saif_get_master(saif);  in mxs_saif_set_clk()
92 	dev_dbg(saif->dev, "master saif%d\n", master_saif->id);  in mxs_saif_set_clk()
96 		dev_err(saif->dev,  in mxs_saif_set_clk()
207 	struct mxs_saif *saif = mxs_saif[saif_id];  in mxs_saif_put_mclk()  local
210 	if (!saif)  in mxs_saif_put_mclk()
213 	stat = __raw_readl(saif->base + SAIF_STAT);  in mxs_saif_put_mclk()
215 		dev_err(saif->dev, "error: busy\n");  in mxs_saif_put_mclk()
219 	clk_disable_unprepare(saif->clk);  in mxs_saif_put_mclk()
223 		saif->base + SAIF_CTRL + MXS_SET_ADDR);  in mxs_saif_put_mclk()
225 		saif->base + SAIF_CTRL + MXS_CLR_ADDR);  in mxs_saif_put_mclk()
227 	saif->mclk_in_use = 0;  in mxs_saif_put_mclk()
241 	struct mxs_saif *saif = mxs_saif[saif_id];  in mxs_saif_get_mclk()  local
246 	if (!saif)  in mxs_saif_get_mclk()
251 		saif->base + SAIF_CTRL + MXS_CLR_ADDR);  in mxs_saif_get_mclk()
255 		saif->base + SAIF_CTRL + MXS_CLR_ADDR);  in mxs_saif_get_mclk()
257 	master_saif = mxs_saif_get_master(saif);  in mxs_saif_get_mclk()
258 	if (saif != master_saif) {  in mxs_saif_get_mclk()
259 		dev_err(saif->dev, "can not get mclk from a non-master saif\n");  in mxs_saif_get_mclk()
263 	stat = __raw_readl(saif->base + SAIF_STAT);  in mxs_saif_get_mclk()
265 		dev_err(saif->dev, "error: busy\n");  in mxs_saif_get_mclk()
269 	saif->mclk_in_use = 1;  in mxs_saif_get_mclk()
270 	ret = mxs_saif_set_clk(saif, mclk, rate);  in mxs_saif_get_mclk()
274 	ret = clk_prepare_enable(saif->clk);  in mxs_saif_get_mclk()
280 		saif->base + SAIF_CTRL + MXS_SET_ADDR);  in mxs_saif_get_mclk()
294 	struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);  in mxs_saif_set_dai_fmt()  local
296 	stat = __raw_readl(saif->base + SAIF_STAT);  in mxs_saif_set_dai_fmt()
305 	if (saif->id != saif->master_id) {  in mxs_saif_set_dai_fmt()
307 			saif->base + SAIF_CTRL + MXS_CLR_ADDR);  in mxs_saif_set_dai_fmt()
309 			saif->base + SAIF_CTRL + MXS_CLR_ADDR);  in mxs_saif_set_dai_fmt()
312 	scr0 = __raw_readl(saif->base + SAIF_CTRL);  in mxs_saif_set_dai_fmt()
363 		if (saif->id == saif->master_id)  in mxs_saif_set_dai_fmt()
368 		__raw_writel(scr | scr0, saif->base + SAIF_CTRL);  in mxs_saif_set_dai_fmt()
380 	struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);  in mxs_saif_startup()  local
384 	saif->fifo_underrun = 0;  in mxs_saif_startup()
385 	saif->fifo_overrun = 0;  in mxs_saif_startup()
389 		saif->base + SAIF_CTRL + MXS_CLR_ADDR);  in mxs_saif_startup()
393 		saif->base + SAIF_CTRL + MXS_CLR_ADDR);  in mxs_saif_startup()
395 	ret = clk_prepare(saif->clk);  in mxs_saif_startup()
405 	struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);  in mxs_saif_shutdown()  local
407 	clk_unprepare(saif->clk);  in mxs_saif_shutdown()
418 	struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);  in mxs_saif_hw_params()  local
423 	master_saif = mxs_saif_get_master(saif);  in mxs_saif_hw_params()
428 	if (!saif->mclk && saif->mclk_in_use) {  in mxs_saif_hw_params()
433 	stat = __raw_readl(saif->base + SAIF_STAT);  in mxs_saif_hw_params()
434 	if (!saif->mclk_in_use && (stat & BM_SAIF_STAT_BUSY)) {  in mxs_saif_hw_params()
444 	ret = mxs_saif_set_clk(saif, saif->mclk, params_rate(params));  in mxs_saif_hw_params()
450 	if (saif != master_saif) {  in mxs_saif_hw_params()
458 		ret = clk_enable(saif->clk);  in mxs_saif_hw_params()
462 		ret = clk_set_rate(saif->clk, 24000000);  in mxs_saif_hw_params()
463 		clk_disable(saif->clk);  in mxs_saif_hw_params()
472 	scr = __raw_readl(saif->base + SAIF_CTRL);  in mxs_saif_hw_params()
501 	__raw_writel(scr, saif->base + SAIF_CTRL);  in mxs_saif_hw_params()
508 	struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);  in mxs_saif_prepare()  local
512 		saif->base + SAIF_CTRL + MXS_SET_ADDR);  in mxs_saif_prepare()
520 	struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);  in mxs_saif_trigger()  local
525 	master_saif = mxs_saif_get_master(saif);  in mxs_saif_trigger()
533 		if (saif->state == MXS_SAIF_STATE_RUNNING)  in mxs_saif_trigger()
540 			dev_err(saif->dev, "Failed to enable master clock\n");  in mxs_saif_trigger()
548 		if (saif != master_saif) {  in mxs_saif_trigger()
549 			ret = clk_enable(saif->clk);  in mxs_saif_trigger()
551 				dev_err(saif->dev, "Failed to enable master clock\n");  in mxs_saif_trigger()
557 				saif->base + SAIF_CTRL + MXS_SET_ADDR);  in mxs_saif_trigger()
572 			__raw_writel(0, saif->base + SAIF_DATA);  in mxs_saif_trigger()
573 			__raw_writel(0, saif->base + SAIF_DATA);  in mxs_saif_trigger()
582 			__raw_readl(saif->base + SAIF_DATA);  in mxs_saif_trigger()
583 			__raw_readl(saif->base + SAIF_DATA);  in mxs_saif_trigger()
587 		saif->state = MXS_SAIF_STATE_RUNNING;  in mxs_saif_trigger()
589 		dev_dbg(saif->dev, "CTRL 0x%x STAT 0x%x\n",  in mxs_saif_trigger()
590 			__raw_readl(saif->base + SAIF_CTRL),  in mxs_saif_trigger()
591 			__raw_readl(saif->base + SAIF_STAT));  in mxs_saif_trigger()
600 		if (saif->state == MXS_SAIF_STATE_STOPPED)  in mxs_saif_trigger()
615 		if (saif != master_saif) {  in mxs_saif_trigger()
617 				saif->base + SAIF_CTRL + MXS_CLR_ADDR);  in mxs_saif_trigger()
619 			clk_disable(saif->clk);  in mxs_saif_trigger()
623 		saif->state = MXS_SAIF_STATE_STOPPED;  in mxs_saif_trigger()
672 	struct mxs_saif *saif = dev_id;  in mxs_saif_irq()  local
675 	stat = __raw_readl(saif->base + SAIF_STAT);  in mxs_saif_irq()
681 		dev_dbg(saif->dev, "underrun!!! %d\n", ++saif->fifo_underrun);  in mxs_saif_irq()
683 				saif->base + SAIF_STAT + MXS_CLR_ADDR);  in mxs_saif_irq()
687 		dev_dbg(saif->dev, "overrun!!! %d\n", ++saif->fifo_overrun);  in mxs_saif_irq()
689 				saif->base + SAIF_STAT + MXS_CLR_ADDR);  in mxs_saif_irq()
692 	dev_dbg(saif->dev, "SAIF_CTRL %x SAIF_STAT %x\n",  in mxs_saif_irq()
693 	       __raw_readl(saif->base + SAIF_CTRL),  in mxs_saif_irq()
694 	       __raw_readl(saif->base + SAIF_STAT));  in mxs_saif_irq()
701 	struct mxs_saif *saif = platform_get_drvdata(pdev);  in mxs_saif_mclk_init()  local
707 				   __clk_get_name(saif->clk), 0,  in mxs_saif_mclk_init()
708 				   saif->base + SAIF_CTRL,  in mxs_saif_mclk_init()
729 	struct mxs_saif *saif;  in mxs_saif_probe()  local
733 	saif = devm_kzalloc(&pdev->dev, sizeof(*saif), GFP_KERNEL);  in mxs_saif_probe()
734 	if (!saif)  in mxs_saif_probe()
741 		saif->id = ret;  in mxs_saif_probe()
743 	if (saif->id >= ARRAY_SIZE(mxs_saif)) {  in mxs_saif_probe()
755 		saif->master_id = saif->id;  in mxs_saif_probe()
762 			saif->master_id = ret;  in mxs_saif_probe()
764 		if (saif->master_id >= ARRAY_SIZE(mxs_saif)) {  in mxs_saif_probe()
770 	mxs_saif[saif->id] = saif;  in mxs_saif_probe()
772 	saif->clk = devm_clk_get(&pdev->dev, NULL);  in mxs_saif_probe()
773 	if (IS_ERR(saif->clk)) {  in mxs_saif_probe()
774 		ret = PTR_ERR(saif->clk);  in mxs_saif_probe()
780 	saif->base = devm_platform_ioremap_resource(pdev, 0);  in mxs_saif_probe()
781 	if (IS_ERR(saif->base))  in mxs_saif_probe()
782 		return PTR_ERR(saif->base);  in mxs_saif_probe()
788 	saif->dev = &pdev->dev;  in mxs_saif_probe()
790 			       dev_name(&pdev->dev), saif);  in mxs_saif_probe()
796 	platform_set_drvdata(pdev, saif);  in mxs_saif_probe()
799 	if (saif->id == 0) {  in mxs_saif_probe()