58 #define STM_SAI_HAS_EXT_SYNC(x) (!STM_SAI_IS_F4(sai->pdata))
188 static int stm32_sai_sub_reg_up(struct stm32_sai_sub_data *sai,  in stm32_sai_sub_reg_up()  argument
194 	ret = clk_enable(sai->pdata->pclk);  in stm32_sai_sub_reg_up()
198 	ret = regmap_update_bits(sai->regmap, reg, mask, val);  in stm32_sai_sub_reg_up()
200 	clk_disable(sai->pdata->pclk);  in stm32_sai_sub_reg_up()
205 static int stm32_sai_sub_reg_wr(struct stm32_sai_sub_data *sai,  in stm32_sai_sub_reg_wr()  argument
211 	ret = clk_enable(sai->pdata->pclk);  in stm32_sai_sub_reg_wr()
215 	ret = regmap_write_bits(sai->regmap, reg, mask, val);  in stm32_sai_sub_reg_wr()
217 	clk_disable(sai->pdata->pclk);  in stm32_sai_sub_reg_wr()
222 static int stm32_sai_sub_reg_rd(struct stm32_sai_sub_data *sai,  in stm32_sai_sub_reg_rd()  argument
227 	ret = clk_enable(sai->pdata->pclk);  in stm32_sai_sub_reg_rd()
231 	ret = regmap_read(sai->regmap, reg, val);  in stm32_sai_sub_reg_rd()
233 	clk_disable(sai->pdata->pclk);  in stm32_sai_sub_reg_rd()
274 	struct stm32_sai_sub_data *sai = snd_kcontrol_chip(kcontrol);  in snd_pcm_iec958_get()  local
276 	mutex_lock(&sai->ctrl_lock);  in snd_pcm_iec958_get()
277 	memcpy(uctl->value.iec958.status, sai->iec958.status, 4);  in snd_pcm_iec958_get()
278 	mutex_unlock(&sai->ctrl_lock);  in snd_pcm_iec958_get()
286 	struct stm32_sai_sub_data *sai = snd_kcontrol_chip(kcontrol);  in snd_pcm_iec958_put()  local
288 	mutex_lock(&sai->ctrl_lock);  in snd_pcm_iec958_put()
289 	memcpy(sai->iec958.status, uctl->value.iec958.status, 4);  in snd_pcm_iec958_put()
290 	mutex_unlock(&sai->ctrl_lock);  in snd_pcm_iec958_put()
314 static int stm32_sai_get_clk_div(struct stm32_sai_sub_data *sai,  in stm32_sai_get_clk_div()  argument
318 	int version = sai->pdata->conf.version;  in stm32_sai_get_clk_div()
323 		dev_err(&sai->pdev->dev, "Divider %d out of range\n", div);  in stm32_sai_get_clk_div()
326 	dev_dbg(&sai->pdev->dev, "SAI divider %d\n", div);  in stm32_sai_get_clk_div()
329 		dev_dbg(&sai->pdev->dev,  in stm32_sai_get_clk_div()
336 static int stm32_sai_set_clk_div(struct stm32_sai_sub_data *sai,  in stm32_sai_set_clk_div()  argument
339 	int version = sai->pdata->conf.version;  in stm32_sai_set_clk_div()
343 		dev_err(&sai->pdev->dev, "Divider %d out of range\n", div);  in stm32_sai_set_clk_div()
349 	ret = stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX, mask, cr1);  in stm32_sai_set_clk_div()
351 		dev_err(&sai->pdev->dev, "Failed to update CR1 register\n");  in stm32_sai_set_clk_div()
356 static int stm32_sai_set_parent_clock(struct stm32_sai_sub_data *sai,  in stm32_sai_set_parent_clock()  argument
359 	struct platform_device *pdev = sai->pdev;  in stm32_sai_set_parent_clock()
360 	struct clk *parent_clk = sai->pdata->clk_x8k;  in stm32_sai_set_parent_clock()
364 		parent_clk = sai->pdata->clk_x11k;  in stm32_sai_set_parent_clock()
366 	ret = clk_set_parent(sai->sai_ck, parent_clk);  in stm32_sai_set_parent_clock()
379 	struct stm32_sai_sub_data *sai = mclk->sai_data;  in stm32_sai_mclk_round_rate()  local
382 	div = stm32_sai_get_clk_div(sai, *prate, rate);  in stm32_sai_mclk_round_rate()
403 	struct stm32_sai_sub_data *sai = mclk->sai_data;  in stm32_sai_mclk_set_rate()  local
406 	div = stm32_sai_get_clk_div(sai, parent_rate, rate);  in stm32_sai_mclk_set_rate()
410 	ret = stm32_sai_set_clk_div(sai, div);  in stm32_sai_mclk_set_rate()
422 	struct stm32_sai_sub_data *sai = mclk->sai_data;  in stm32_sai_mclk_enable()  local
424 	dev_dbg(&sai->pdev->dev, "Enable master clock\n");  in stm32_sai_mclk_enable()
426 	return stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX,  in stm32_sai_mclk_enable()
433 	struct stm32_sai_sub_data *sai = mclk->sai_data;  in stm32_sai_mclk_disable()  local
435 	dev_dbg(&sai->pdev->dev, "Disable master clock\n");  in stm32_sai_mclk_disable()
437 	stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX, SAI_XCR1_MCKEN, 0);  in stm32_sai_mclk_disable()
448 static int stm32_sai_add_mclk_provider(struct stm32_sai_sub_data *sai)  in stm32_sai_add_mclk_provider()  argument
452 	struct device *dev = &sai->pdev->dev;  in stm32_sai_add_mclk_provider()
453 	const char *pname = __clk_get_name(sai->sai_ck);  in stm32_sai_add_mclk_provider()
475 	STM_SAI_IS_SUB_A(sai) ? strcat(p, "a_mclk") : strcat(p, "b_mclk");  in stm32_sai_add_mclk_provider()
478 	mclk->sai_data = sai;  in stm32_sai_add_mclk_provider()
482 	ret = devm_clk_hw_register(&sai->pdev->dev, hw);  in stm32_sai_add_mclk_provider()
487 	sai->sai_mclk = hw->clk;  in stm32_sai_add_mclk_provider()
495 	struct stm32_sai_sub_data *sai = (struct stm32_sai_sub_data *)devid;  in stm32_sai_isr()  local
496 	struct platform_device *pdev = sai->pdev;  in stm32_sai_isr()
500 	stm32_sai_sub_reg_rd(sai, STM_SAI_IMR_REGX, &imr);  in stm32_sai_isr()
501 	stm32_sai_sub_reg_rd(sai, STM_SAI_SR_REGX, &sr);  in stm32_sai_isr()
507 	stm32_sai_sub_reg_wr(sai, STM_SAI_CLRFR_REGX, SAI_XCLRFR_MASK,  in stm32_sai_isr()
510 	if (!sai->substream) {  in stm32_sai_isr()
517 			STM_SAI_IS_PLAYBACK(sai) ? "underrun" : "overrun");  in stm32_sai_isr()
542 	spin_lock(&sai->irq_lock);  in stm32_sai_isr()
543 	if (status != SNDRV_PCM_STATE_RUNNING && sai->substream)  in stm32_sai_isr()
544 		snd_pcm_stop_xrun(sai->substream);  in stm32_sai_isr()
545 	spin_unlock(&sai->irq_lock);  in stm32_sai_isr()
553 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_set_sysclk()  local
556 	if (dir == SND_SOC_CLOCK_OUT && sai->sai_mclk) {  in stm32_sai_set_sysclk()
557 		ret = stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX,  in stm32_sai_set_sysclk()
566 			if (sai->mclk_rate) {  in stm32_sai_set_sysclk()
567 				clk_rate_exclusive_put(sai->sai_mclk);  in stm32_sai_set_sysclk()
568 				sai->mclk_rate = 0;  in stm32_sai_set_sysclk()
574 		ret = stm32_sai_set_parent_clock(sai, freq);  in stm32_sai_set_sysclk()
578 		ret = clk_set_rate_exclusive(sai->sai_mclk, freq);  in stm32_sai_set_sysclk()
588 		sai->mclk_rate = freq;  in stm32_sai_set_sysclk()
597 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_set_dai_tdm_slot()  local
600 	if (STM_SAI_PROTOCOL_IS_SPDIF(sai)) {  in stm32_sai_set_dai_tdm_slot()
625 	if (STM_SAI_IS_PLAYBACK(sai)) {  in stm32_sai_set_dai_tdm_slot()
626 		sai->slot_mask = tx_mask;  in stm32_sai_set_dai_tdm_slot()
630 	if (STM_SAI_IS_CAPTURE(sai)) {  in stm32_sai_set_dai_tdm_slot()
631 		sai->slot_mask = rx_mask;  in stm32_sai_set_dai_tdm_slot()
637 	stm32_sai_sub_reg_up(sai, STM_SAI_SLOTR_REGX, slotr_mask, slotr);  in stm32_sai_set_dai_tdm_slot()
639 	sai->slot_width = slot_width;  in stm32_sai_set_dai_tdm_slot()
640 	sai->slots = slots;  in stm32_sai_set_dai_tdm_slot()
647 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_set_dai_fmt()  local
659 	if (STM_SAI_PROTOCOL_IS_SPDIF(sai)) {  in stm32_sai_set_dai_fmt()
719 	stm32_sai_sub_reg_up(sai, STM_SAI_FRCR_REGX, frcr_mask, frcr);  in stm32_sai_set_dai_fmt()
726 		sai->master = false;  in stm32_sai_set_dai_fmt()
729 		sai->master = true;  in stm32_sai_set_dai_fmt()
738 	if (sai->sync) {  in stm32_sai_set_dai_fmt()
741 		sai->master = false;  in stm32_sai_set_dai_fmt()
747 	ret = stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX, cr1_mask, cr1);  in stm32_sai_set_dai_fmt()
753 	sai->fmt = fmt;  in stm32_sai_set_dai_fmt()
761 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_startup()  local
765 	spin_lock_irqsave(&sai->irq_lock, flags);  in stm32_sai_startup()
766 	sai->substream = substream;  in stm32_sai_startup()
767 	spin_unlock_irqrestore(&sai->irq_lock, flags);  in stm32_sai_startup()
769 	if (STM_SAI_PROTOCOL_IS_SPDIF(sai)) {  in stm32_sai_startup()
777 	ret = clk_prepare_enable(sai->sai_ck);  in stm32_sai_startup()
784 	stm32_sai_sub_reg_wr(sai, STM_SAI_CLRFR_REGX,  in stm32_sai_startup()
788 	if (STM_SAI_IS_CAPTURE(sai)) {  in stm32_sai_startup()
789 		stm32_sai_sub_reg_rd(sai, STM_SAI_CR2_REGX, &cr2);  in stm32_sai_startup()
794 	if (sai->master)  in stm32_sai_startup()
799 	stm32_sai_sub_reg_up(sai, STM_SAI_IMR_REGX,  in stm32_sai_startup()
809 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_set_config()  local
817 	stm32_sai_sub_reg_wr(sai, STM_SAI_CR2_REGX,  in stm32_sai_set_config()
823 	if (STM_SAI_PROTOCOL_IS_SPDIF(sai)) {  in stm32_sai_set_config()
824 		sai->spdif_frm_cnt = 0;  in stm32_sai_set_config()
846 	if ((sai->slots == 2) && (params_channels(params) == 1))  in stm32_sai_set_config()
849 	ret = stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX, cr1_mask, cr1);  in stm32_sai_set_config()
860 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_set_slots()  local
863 	stm32_sai_sub_reg_rd(sai, STM_SAI_SLOTR_REGX, &slotr);  in stm32_sai_set_slots()
871 		sai->slot_width = sai->data_size;  in stm32_sai_set_slots()
873 	if (sai->slot_width < sai->data_size) {  in stm32_sai_set_slots()
876 			sai->data_size);  in stm32_sai_set_slots()
881 	if (!sai->slots)  in stm32_sai_set_slots()
882 		sai->slots = 2;  in stm32_sai_set_slots()
885 	stm32_sai_sub_reg_up(sai, STM_SAI_SLOTR_REGX,  in stm32_sai_set_slots()
887 			     SAI_XSLOTR_NBSLOT_SET((sai->slots - 1)));  in stm32_sai_set_slots()
891 		sai->slot_mask = (1 << sai->slots) - 1;  in stm32_sai_set_slots()
892 		stm32_sai_sub_reg_up(sai,  in stm32_sai_set_slots()
894 				     SAI_XSLOTR_SLOTEN_SET(sai->slot_mask));  in stm32_sai_set_slots()
898 		sai->slots, sai->slot_width);  in stm32_sai_set_slots()
905 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_set_frame()  local
909 	format = sai->fmt & SND_SOC_DAIFMT_FORMAT_MASK;  in stm32_sai_set_frame()
910 	sai->fs_length = sai->slot_width * sai->slots;  in stm32_sai_set_frame()
912 	fs_active = sai->fs_length / 2;  in stm32_sai_set_frame()
917 	frcr = SAI_XFRCR_FRL_SET((sai->fs_length - 1));  in stm32_sai_set_frame()
922 		sai->fs_length, fs_active);  in stm32_sai_set_frame()
924 	stm32_sai_sub_reg_up(sai, STM_SAI_FRCR_REGX, frcr_mask, frcr);  in stm32_sai_set_frame()
926 	if ((sai->fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_LSB) {  in stm32_sai_set_frame()
927 		offset = sai->slot_width - sai->data_size;  in stm32_sai_set_frame()
929 		stm32_sai_sub_reg_up(sai, STM_SAI_SLOTR_REGX,  in stm32_sai_set_frame()
935 static void stm32_sai_init_iec958_status(struct stm32_sai_sub_data *sai)  in stm32_sai_init_iec958_status()  argument
937 	unsigned char *cs = sai->iec958.status;  in stm32_sai_init_iec958_status()
945 static void stm32_sai_set_iec958_status(struct stm32_sai_sub_data *sai,  in stm32_sai_set_iec958_status()  argument
952 	mutex_lock(&sai->ctrl_lock);  in stm32_sai_set_iec958_status()
955 		sai->iec958.status[3] = IEC958_AES3_CON_FS_22050;  in stm32_sai_set_iec958_status()
958 		sai->iec958.status[3] = IEC958_AES3_CON_FS_44100;  in stm32_sai_set_iec958_status()
961 		sai->iec958.status[3] = IEC958_AES3_CON_FS_88200;  in stm32_sai_set_iec958_status()
964 		sai->iec958.status[3] = IEC958_AES3_CON_FS_176400;  in stm32_sai_set_iec958_status()
967 		sai->iec958.status[3] = IEC958_AES3_CON_FS_24000;  in stm32_sai_set_iec958_status()
970 		sai->iec958.status[3] = IEC958_AES3_CON_FS_48000;  in stm32_sai_set_iec958_status()
973 		sai->iec958.status[3] = IEC958_AES3_CON_FS_96000;  in stm32_sai_set_iec958_status()
976 		sai->iec958.status[3] = IEC958_AES3_CON_FS_192000;  in stm32_sai_set_iec958_status()
979 		sai->iec958.status[3] = IEC958_AES3_CON_FS_32000;  in stm32_sai_set_iec958_status()
982 		sai->iec958.status[3] = IEC958_AES3_CON_FS_NOTID;  in stm32_sai_set_iec958_status()
985 	mutex_unlock(&sai->ctrl_lock);  in stm32_sai_set_iec958_status()
991 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_configure_clock()  local
997 	if (!sai->sai_mclk) {  in stm32_sai_configure_clock()
998 		ret = stm32_sai_set_parent_clock(sai, rate);  in stm32_sai_configure_clock()
1002 	sai_clk_rate = clk_get_rate(sai->sai_ck);  in stm32_sai_configure_clock()
1004 	if (STM_SAI_IS_F4(sai->pdata)) {  in stm32_sai_configure_clock()
1012 		if (!sai->mclk_rate)  in stm32_sai_configure_clock()
1015 		if (2 * sai_clk_rate >= 3 * sai->mclk_rate) {  in stm32_sai_configure_clock()
1016 			div = stm32_sai_get_clk_div(sai, sai_clk_rate,  in stm32_sai_configure_clock()
1017 						    2 * sai->mclk_rate);  in stm32_sai_configure_clock()
1031 		if (STM_SAI_PROTOCOL_IS_SPDIF(sai)) {  in stm32_sai_configure_clock()
1032 			div = stm32_sai_get_clk_div(sai, sai_clk_rate,  in stm32_sai_configure_clock()
1037 			if (sai->mclk_rate) {  in stm32_sai_configure_clock()
1038 				mclk_ratio = sai->mclk_rate / rate;  in stm32_sai_configure_clock()
1048 				stm32_sai_sub_reg_up(sai,  in stm32_sai_configure_clock()
1052 				div = stm32_sai_get_clk_div(sai, sai_clk_rate,  in stm32_sai_configure_clock()
1053 							    sai->mclk_rate);  in stm32_sai_configure_clock()
1058 				den = sai->fs_length * params_rate(params);  in stm32_sai_configure_clock()
1059 				div = stm32_sai_get_clk_div(sai, sai_clk_rate,  in stm32_sai_configure_clock()
1067 	return stm32_sai_set_clk_div(sai, div);  in stm32_sai_configure_clock()
1074 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_hw_params()  local
1077 	sai->data_size = params_width(params);  in stm32_sai_hw_params()
1079 	if (STM_SAI_PROTOCOL_IS_SPDIF(sai)) {  in stm32_sai_hw_params()
1082 		stm32_sai_set_iec958_status(sai, substream->runtime);  in stm32_sai_hw_params()
1094 	if (sai->master)  in stm32_sai_hw_params()
1103 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_trigger()  local
1112 		stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX,  in stm32_sai_trigger()
1116 		ret = stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX,  in stm32_sai_trigger()
1126 		stm32_sai_sub_reg_up(sai, STM_SAI_IMR_REGX,  in stm32_sai_trigger()
1129 		stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX,  in stm32_sai_trigger()
1133 		ret = stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX,  in stm32_sai_trigger()
1139 		if (STM_SAI_PROTOCOL_IS_SPDIF(sai))  in stm32_sai_trigger()
1140 			sai->spdif_frm_cnt = 0;  in stm32_sai_trigger()
1152 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);  in stm32_sai_shutdown()  local
1155 	stm32_sai_sub_reg_up(sai, STM_SAI_IMR_REGX, SAI_XIMR_MASK, 0);  in stm32_sai_shutdown()
1157 	clk_disable_unprepare(sai->sai_ck);  in stm32_sai_shutdown()
1159 	spin_lock_irqsave(&sai->irq_lock, flags);  in stm32_sai_shutdown()
1160 	sai->substream = NULL;  in stm32_sai_shutdown()
1161 	spin_unlock_irqrestore(&sai->irq_lock, flags);  in stm32_sai_shutdown()
1167 	struct stm32_sai_sub_data *sai = dev_get_drvdata(cpu_dai->dev);  in stm32_sai_pcm_new()  local
1170 	if (STM_SAI_PROTOCOL_IS_SPDIF(sai)) {  in stm32_sai_pcm_new()
1171 		dev_dbg(&sai->pdev->dev, "%s: register iec controls", __func__);  in stm32_sai_pcm_new()
1173 		return snd_ctl_add(rtd->pcm->card, snd_ctl_new1(&knew, sai));  in stm32_sai_pcm_new()
1181 	struct stm32_sai_sub_data *sai = dev_get_drvdata(cpu_dai->dev);  in stm32_sai_dai_probe()  local
1184 	sai->cpu_dai = cpu_dai;  in stm32_sai_dai_probe()
1186 	sai->dma_params.addr = (dma_addr_t)(sai->phys_addr + STM_SAI_DR_REGX);  in stm32_sai_dai_probe()
1192 	sai->dma_params.maxburst = 4;  in stm32_sai_dai_probe()
1193 	if (sai->pdata->conf.fifo_size < 8)  in stm32_sai_dai_probe()
1194 		sai->dma_params.maxburst = 1;  in stm32_sai_dai_probe()
1196 	sai->dma_params.addr_width = DMA_SLAVE_BUSWIDTH_UNDEFINED;  in stm32_sai_dai_probe()
1198 	if (STM_SAI_IS_PLAYBACK(sai))  in stm32_sai_dai_probe()
1199 		snd_soc_dai_init_dma_data(cpu_dai, &sai->dma_params, NULL);  in stm32_sai_dai_probe()
1201 		snd_soc_dai_init_dma_data(cpu_dai, NULL, &sai->dma_params);  in stm32_sai_dai_probe()
1204 	if (STM_SAI_PROTOCOL_IS_SPDIF(sai))  in stm32_sai_dai_probe()
1208 	if (STM_SAI_IS_CAPTURE(sai))  in stm32_sai_dai_probe()
1212 	if (sai->sync == SAI_SYNC_EXTERNAL) {  in stm32_sai_dai_probe()
1214 		ret = sai->pdata->set_sync(sai->pdata, sai->np_sync_provider,  in stm32_sai_dai_probe()
1215 					   sai->synco, sai->synci);  in stm32_sai_dai_probe()
1221 	cr1 |= SAI_XCR1_SYNCEN_SET(sai->sync);  in stm32_sai_dai_probe()
1223 	return stm32_sai_sub_reg_up(sai, STM_SAI_CR1_REGX, cr1_mask, cr1);  in stm32_sai_dai_probe()
1243 	struct stm32_sai_sub_data *sai = dev_get_drvdata(cpu_dai->dev);  in stm32_sai_pcm_process_spdif()  local
1247 	unsigned int frm_cnt = sai->spdif_frm_cnt;  in stm32_sai_pcm_process_spdif()
1257 		if (sai->iec958.status[byte] & mask)  in stm32_sai_pcm_process_spdif()
1267 	sai->spdif_frm_cnt = frm_cnt;  in stm32_sai_pcm_process_spdif()
1353 				  struct stm32_sai_sub_data *sai)  in stm32_sai_sub_parse_of()  argument
1368 	sai->phys_addr = res->start;  in stm32_sai_sub_parse_of()
1370 	sai->regmap_config = &stm32_sai_sub_regmap_config_f4;  in stm32_sai_sub_parse_of()
1372 	if (STM_SAI_HAS_PDM(sai) && STM_SAI_IS_SUB_A(sai))  in stm32_sai_sub_parse_of()
1373 		sai->regmap_config = &stm32_sai_sub_regmap_config_h7;  in stm32_sai_sub_parse_of()
1380 	sai->regmap = devm_regmap_init_mmio(&pdev->dev, base,  in stm32_sai_sub_parse_of()
1381 					    sai->regmap_config);  in stm32_sai_sub_parse_of()
1382 	if (IS_ERR(sai->regmap))  in stm32_sai_sub_parse_of()
1383 		return dev_err_probe(&pdev->dev, PTR_ERR(sai->regmap),  in stm32_sai_sub_parse_of()
1388 		sai->dir = SNDRV_PCM_STREAM_PLAYBACK;  in stm32_sai_sub_parse_of()
1390 		sai->dir = SNDRV_PCM_STREAM_CAPTURE;  in stm32_sai_sub_parse_of()
1397 	sai->spdif = false;  in stm32_sai_sub_parse_of()
1399 		if (!STM_SAI_HAS_SPDIF(sai) ||  in stm32_sai_sub_parse_of()
1400 		    sai->dir == SNDRV_PCM_STREAM_CAPTURE) {  in stm32_sai_sub_parse_of()
1404 		stm32_sai_init_iec958_status(sai);  in stm32_sai_sub_parse_of()
1405 		sai->spdif = true;  in stm32_sai_sub_parse_of()
1406 		sai->master = true;  in stm32_sai_sub_parse_of()
1417 	sai->sync = SAI_SYNC_NONE;  in stm32_sai_sub_parse_of()
1425 		sai->np_sync_provider  = of_get_parent(args.np);  in stm32_sai_sub_parse_of()
1426 		if (!sai->np_sync_provider) {  in stm32_sai_sub_parse_of()
1433 		sai->sync = SAI_SYNC_INTERNAL;  in stm32_sai_sub_parse_of()
1434 		if (sai->np_sync_provider != sai->pdata->pdev->dev.of_node) {  in stm32_sai_sub_parse_of()
1435 			if (!STM_SAI_HAS_EXT_SYNC(sai)) {  in stm32_sai_sub_parse_of()
1441 			sai->sync = SAI_SYNC_EXTERNAL;  in stm32_sai_sub_parse_of()
1443 			sai->synci = args.args[0];  in stm32_sai_sub_parse_of()
1444 			if (sai->synci < 1 ||  in stm32_sai_sub_parse_of()
1445 			    (sai->synci > (SAI_GCR_SYNCIN_MAX + 1))) {  in stm32_sai_sub_parse_of()
1453 				sai->synco = STM_SAI_SYNC_OUT_A;  in stm32_sai_sub_parse_of()
1457 				sai->synco = STM_SAI_SYNC_OUT_B;  in stm32_sai_sub_parse_of()
1459 			if (!sai->synco) {  in stm32_sai_sub_parse_of()
1471 	sai->sai_ck = devm_clk_get(&pdev->dev, "sai_ck");  in stm32_sai_sub_parse_of()
1472 	if (IS_ERR(sai->sai_ck))  in stm32_sai_sub_parse_of()
1473 		return dev_err_probe(&pdev->dev, PTR_ERR(sai->sai_ck),  in stm32_sai_sub_parse_of()
1476 	ret = clk_prepare(sai->pdata->pclk);  in stm32_sai_sub_parse_of()
1480 	if (STM_SAI_IS_F4(sai->pdata))  in stm32_sai_sub_parse_of()
1485 		ret = stm32_sai_add_mclk_provider(sai);  in stm32_sai_sub_parse_of()
1489 		sai->sai_mclk = devm_clk_get(&pdev->dev, "MCLK");  in stm32_sai_sub_parse_of()
1490 		if (IS_ERR(sai->sai_mclk)) {  in stm32_sai_sub_parse_of()
1491 			if (PTR_ERR(sai->sai_mclk) != -ENOENT)  in stm32_sai_sub_parse_of()
1492 				return PTR_ERR(sai->sai_mclk);  in stm32_sai_sub_parse_of()
1493 			sai->sai_mclk = NULL;  in stm32_sai_sub_parse_of()
1502 	struct stm32_sai_sub_data *sai;  in stm32_sai_sub_probe()  local
1507 	sai = devm_kzalloc(&pdev->dev, sizeof(*sai), GFP_KERNEL);  in stm32_sai_sub_probe()
1508 	if (!sai)  in stm32_sai_sub_probe()
1514 	sai->id = (uintptr_t)of_id->data;  in stm32_sai_sub_probe()
1516 	sai->pdev = pdev;  in stm32_sai_sub_probe()
1517 	mutex_init(&sai->ctrl_lock);  in stm32_sai_sub_probe()
1518 	spin_lock_init(&sai->irq_lock);  in stm32_sai_sub_probe()
1519 	platform_set_drvdata(pdev, sai);  in stm32_sai_sub_probe()
1521 	sai->pdata = dev_get_drvdata(pdev->dev.parent);  in stm32_sai_sub_probe()
1522 	if (!sai->pdata) {  in stm32_sai_sub_probe()
1527 	ret = stm32_sai_sub_parse_of(pdev, sai);  in stm32_sai_sub_probe()
1531 	if (STM_SAI_IS_PLAYBACK(sai))  in stm32_sai_sub_probe()
1532 		sai->cpu_dai_drv = stm32_sai_playback_dai;  in stm32_sai_sub_probe()
1534 		sai->cpu_dai_drv = stm32_sai_capture_dai;  in stm32_sai_sub_probe()
1535 	sai->cpu_dai_drv.name = dev_name(&pdev->dev);  in stm32_sai_sub_probe()
1537 	ret = devm_request_irq(&pdev->dev, sai->pdata->irq, stm32_sai_isr,  in stm32_sai_sub_probe()
1538 			       IRQF_SHARED, dev_name(&pdev->dev), sai);  in stm32_sai_sub_probe()
1544 	if (STM_SAI_PROTOCOL_IS_SPDIF(sai))  in stm32_sai_sub_probe()
1552 					 &sai->cpu_dai_drv, 1);  in stm32_sai_sub_probe()
1565 	struct stm32_sai_sub_data *sai = dev_get_drvdata(&pdev->dev);  in stm32_sai_sub_remove()  local
1567 	clk_unprepare(sai->pdata->pclk);  in stm32_sai_sub_remove()
1578 	struct stm32_sai_sub_data *sai = dev_get_drvdata(dev);  in stm32_sai_sub_suspend()  local
1581 	ret = clk_enable(sai->pdata->pclk);  in stm32_sai_sub_suspend()
1585 	regcache_cache_only(sai->regmap, true);  in stm32_sai_sub_suspend()
1586 	regcache_mark_dirty(sai->regmap);  in stm32_sai_sub_suspend()
1588 	clk_disable(sai->pdata->pclk);  in stm32_sai_sub_suspend()
1595 	struct stm32_sai_sub_data *sai = dev_get_drvdata(dev);  in stm32_sai_sub_resume()  local
1598 	ret = clk_enable(sai->pdata->pclk);  in stm32_sai_sub_resume()
1602 	regcache_cache_only(sai->regmap, false);  in stm32_sai_sub_resume()
1603 	ret = regcache_sync(sai->regmap);  in stm32_sai_sub_resume()
1605 	clk_disable(sai->pdata->pclk);  in stm32_sai_sub_resume()