Lines Matching +full:tdm +full:- +full:data +full:- +full:out
1 // SPDX-License-Identifier: GPL-2.0-only
5 * Multi-channel Audio Serial Port Driver
7 * Author: Nirmal Pandey <n-pandey@ti.com>,
39 #include "edma-pcm.h"
40 #include "sdma-pcm.h"
41 #include "udma-pcm.h"
42 #include "davinci-mcasp.h"
91 /* McASP specific data */
136 void __iomem *reg = mcasp->base + offset; in mcasp_set_bits()
143 void __iomem *reg = mcasp->base + offset; in mcasp_clr_bits()
150 void __iomem *reg = mcasp->base + offset; in mcasp_mod_bits()
157 __raw_writel(val, mcasp->base + offset); in mcasp_set_reg()
162 return (u32)__raw_readl(mcasp->base + offset); in mcasp_get_reg()
172 /* loop count is to avoid the lock-up */ in mcasp_set_ctl_reg()
194 for_each_set_bit_from(bit, &mcasp->pdir, PIN_BIT_AFSR + 1) { in mcasp_set_clk_pdir()
206 for_each_set_bit(bit, &mcasp->pdir, PIN_BIT_AMUTE) { in mcasp_set_axr_pdir()
216 if (mcasp->rxnumevt) { /* enable FIFO */ in mcasp_start_rx()
217 u32 reg = mcasp->fifo_base + MCASP_RFIFOCTL_OFFSET; in mcasp_start_rx()
249 mcasp->irq_request[SNDRV_PCM_STREAM_CAPTURE]); in mcasp_start_rx()
256 if (mcasp->txnumevt) { /* enable FIFO */ in mcasp_start_tx()
257 u32 reg = mcasp->fifo_base + MCASP_WFIFOCTL_OFFSET; in mcasp_start_tx()
287 mcasp->irq_request[SNDRV_PCM_STREAM_PLAYBACK]); in mcasp_start_tx()
292 mcasp->streams++; in davinci_mcasp_start()
304 mcasp->irq_request[SNDRV_PCM_STREAM_CAPTURE]); in mcasp_stop_rx()
310 if (mcasp_is_synchronous(mcasp) && !mcasp->streams) { in mcasp_stop_rx()
318 if (mcasp->rxnumevt) { /* disable FIFO */ in mcasp_stop_rx()
319 u32 reg = mcasp->fifo_base + MCASP_RFIFOCTL_OFFSET; in mcasp_stop_rx()
331 mcasp->irq_request[SNDRV_PCM_STREAM_PLAYBACK]); in mcasp_stop_tx()
337 if (mcasp_is_synchronous(mcasp) && mcasp->streams) in mcasp_stop_tx()
346 if (mcasp->txnumevt) { /* disable FIFO */ in mcasp_stop_tx()
347 u32 reg = mcasp->fifo_base + MCASP_WFIFOCTL_OFFSET; in mcasp_stop_tx()
357 mcasp->streams--; in davinci_mcasp_stop()
365 static irqreturn_t davinci_mcasp_tx_irq_handler(int irq, void *data) in davinci_mcasp_tx_irq_handler() argument
367 struct davinci_mcasp *mcasp = (struct davinci_mcasp *)data; in davinci_mcasp_tx_irq_handler()
369 u32 irq_mask = mcasp->irq_request[SNDRV_PCM_STREAM_PLAYBACK]; in davinci_mcasp_tx_irq_handler()
375 dev_warn(mcasp->dev, "Transmit buffer underflow\n"); in davinci_mcasp_tx_irq_handler()
378 substream = mcasp->substreams[SNDRV_PCM_STREAM_PLAYBACK]; in davinci_mcasp_tx_irq_handler()
384 dev_warn(mcasp->dev, "unhandled tx event. txstat: 0x%08x\n", in davinci_mcasp_tx_irq_handler()
396 static irqreturn_t davinci_mcasp_rx_irq_handler(int irq, void *data) in davinci_mcasp_rx_irq_handler() argument
398 struct davinci_mcasp *mcasp = (struct davinci_mcasp *)data; in davinci_mcasp_rx_irq_handler()
400 u32 irq_mask = mcasp->irq_request[SNDRV_PCM_STREAM_CAPTURE]; in davinci_mcasp_rx_irq_handler()
406 dev_warn(mcasp->dev, "Receive buffer overflow\n"); in davinci_mcasp_rx_irq_handler()
409 substream = mcasp->substreams[SNDRV_PCM_STREAM_CAPTURE]; in davinci_mcasp_rx_irq_handler()
415 dev_warn(mcasp->dev, "unhandled rx event. rxstat: 0x%08x\n", in davinci_mcasp_rx_irq_handler()
427 static irqreturn_t davinci_mcasp_common_irq_handler(int irq, void *data) in davinci_mcasp_common_irq_handler() argument
429 struct davinci_mcasp *mcasp = (struct davinci_mcasp *)data; in davinci_mcasp_common_irq_handler()
432 if (mcasp->substreams[SNDRV_PCM_STREAM_PLAYBACK]) in davinci_mcasp_common_irq_handler()
433 ret = davinci_mcasp_tx_irq_handler(irq, data); in davinci_mcasp_common_irq_handler()
435 if (mcasp->substreams[SNDRV_PCM_STREAM_CAPTURE]) in davinci_mcasp_common_irq_handler()
436 ret |= davinci_mcasp_rx_irq_handler(irq, data); in davinci_mcasp_common_irq_handler()
453 pm_runtime_get_sync(mcasp->dev); in davinci_mcasp_set_dai_fmt()
458 /* 1st data bit occur one ACLK cycle after the frame sync */ in davinci_mcasp_set_dai_fmt()
469 /* configure a full-word SYNC pulse (LRCLK) */ in davinci_mcasp_set_dai_fmt()
472 /* 1st data bit occur one ACLK cycle after the frame sync */ in davinci_mcasp_set_dai_fmt()
479 /* configure a full-word SYNC pulse (LRCLK) */ in davinci_mcasp_set_dai_fmt()
486 ret = -EINVAL; in davinci_mcasp_set_dai_fmt()
487 goto out; in davinci_mcasp_set_dai_fmt()
505 set_bit(PIN_BIT_ACLKX, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
506 set_bit(PIN_BIT_ACLKR, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
508 set_bit(PIN_BIT_AFSX, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
509 set_bit(PIN_BIT_AFSR, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
511 mcasp->bclk_master = 1; in davinci_mcasp_set_dai_fmt()
522 set_bit(PIN_BIT_ACLKX, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
523 set_bit(PIN_BIT_ACLKR, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
525 clear_bit(PIN_BIT_AFSX, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
526 clear_bit(PIN_BIT_AFSR, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
528 mcasp->bclk_master = 1; in davinci_mcasp_set_dai_fmt()
539 clear_bit(PIN_BIT_ACLKX, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
540 clear_bit(PIN_BIT_ACLKR, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
542 set_bit(PIN_BIT_AFSX, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
543 set_bit(PIN_BIT_AFSR, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
545 mcasp->bclk_master = 0; in davinci_mcasp_set_dai_fmt()
556 clear_bit(PIN_BIT_ACLKX, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
557 clear_bit(PIN_BIT_ACLKR, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
559 clear_bit(PIN_BIT_AFSX, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
560 clear_bit(PIN_BIT_AFSR, &mcasp->pdir); in davinci_mcasp_set_dai_fmt()
562 mcasp->bclk_master = 0; in davinci_mcasp_set_dai_fmt()
565 ret = -EINVAL; in davinci_mcasp_set_dai_fmt()
566 goto out; in davinci_mcasp_set_dai_fmt()
591 ret = -EINVAL; in davinci_mcasp_set_dai_fmt()
592 goto out; in davinci_mcasp_set_dai_fmt()
606 mcasp->dai_fmt = fmt; in davinci_mcasp_set_dai_fmt()
607 out: in davinci_mcasp_set_dai_fmt()
608 pm_runtime_put(mcasp->dev); in davinci_mcasp_set_dai_fmt()
615 pm_runtime_get_sync(mcasp->dev); in __davinci_mcasp_set_clkdiv()
619 AHCLKXDIV(div - 1), AHCLKXDIV_MASK); in __davinci_mcasp_set_clkdiv()
621 AHCLKRDIV(div - 1), AHCLKRDIV_MASK); in __davinci_mcasp_set_clkdiv()
626 ACLKXDIV(div - 1), ACLKXDIV_MASK); in __davinci_mcasp_set_clkdiv()
628 ACLKRDIV(div - 1), ACLKRDIV_MASK); in __davinci_mcasp_set_clkdiv()
630 mcasp->bclk_div = div; in __davinci_mcasp_set_clkdiv()
635 * BCLK/LRCLK ratio descries how many bit-clock cycles in __davinci_mcasp_set_clkdiv()
637 * full period of data (for I2S format both left and in __davinci_mcasp_set_clkdiv()
639 * of tdm-slots (for I2S - divided by 2). in __davinci_mcasp_set_clkdiv()
642 * number of configured tdm slots. in __davinci_mcasp_set_clkdiv()
644 mcasp->slot_width = div / mcasp->tdm_slots; in __davinci_mcasp_set_clkdiv()
645 if (div % mcasp->tdm_slots) in __davinci_mcasp_set_clkdiv()
646 dev_warn(mcasp->dev, in __davinci_mcasp_set_clkdiv()
647 "%s(): BCLK/LRCLK %d is not divisible by %d tdm slots", in __davinci_mcasp_set_clkdiv()
648 __func__, div, mcasp->tdm_slots); in __davinci_mcasp_set_clkdiv()
652 return -EINVAL; in __davinci_mcasp_set_clkdiv()
655 pm_runtime_put(mcasp->dev); in __davinci_mcasp_set_clkdiv()
672 pm_runtime_get_sync(mcasp->dev); in davinci_mcasp_set_sysclk()
681 clear_bit(PIN_BIT_AHCLKX, &mcasp->pdir); in davinci_mcasp_set_sysclk()
688 set_bit(PIN_BIT_AHCLKX, &mcasp->pdir); in davinci_mcasp_set_sysclk()
691 dev_err(mcasp->dev, "Invalid clk id: %d\n", clk_id); in davinci_mcasp_set_sysclk()
692 goto out; in davinci_mcasp_set_sysclk()
698 set_bit(PIN_BIT_AHCLKX, &mcasp->pdir); in davinci_mcasp_set_sysclk()
702 * the same clock - coming via AUXCLK. in davinci_mcasp_set_sysclk()
704 mcasp->sysclk_freq = freq; in davinci_mcasp_set_sysclk()
705 out: in davinci_mcasp_set_sysclk()
706 pm_runtime_put(mcasp->dev); in davinci_mcasp_set_sysclk()
714 struct snd_pcm_hw_constraint_list *cl = &mcasp->chconstr[stream]; in davinci_mcasp_ch_constraint()
715 unsigned int *list = (unsigned int *) cl->list; in davinci_mcasp_ch_constraint()
716 int slots = mcasp->tdm_slots; in davinci_mcasp_ch_constraint()
719 if (mcasp->tdm_mask[stream]) in davinci_mcasp_ch_constraint()
720 slots = hweight32(mcasp->tdm_mask[stream]); in davinci_mcasp_ch_constraint()
728 cl->count = count; in davinci_mcasp_ch_constraint()
737 for (i = 0; i < mcasp->num_serializer; i++) in davinci_mcasp_set_ch_constraints()
738 if (mcasp->serial_dir[i] == TX_MODE) in davinci_mcasp_set_ch_constraints()
740 else if (mcasp->serial_dir[i] == RX_MODE) in davinci_mcasp_set_ch_constraints()
762 if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE) in davinci_mcasp_set_tdm_slot()
765 dev_dbg(mcasp->dev, in davinci_mcasp_set_tdm_slot()
770 dev_err(mcasp->dev, in davinci_mcasp_set_tdm_slot()
771 "Bad tdm mask tx: 0x%08x rx: 0x%08x slots %d\n", in davinci_mcasp_set_tdm_slot()
773 return -EINVAL; in davinci_mcasp_set_tdm_slot()
778 dev_err(mcasp->dev, "%s: Unsupported slot_width %d\n", in davinci_mcasp_set_tdm_slot()
780 return -EINVAL; in davinci_mcasp_set_tdm_slot()
783 mcasp->tdm_slots = slots; in davinci_mcasp_set_tdm_slot()
784 mcasp->tdm_mask[SNDRV_PCM_STREAM_PLAYBACK] = tx_mask; in davinci_mcasp_set_tdm_slot()
785 mcasp->tdm_mask[SNDRV_PCM_STREAM_CAPTURE] = rx_mask; in davinci_mcasp_set_tdm_slot()
786 mcasp->slot_width = slot_width; in davinci_mcasp_set_tdm_slot()
796 u32 mask = (1ULL << sample_width) - 1; in davinci_config_channel_size()
798 if (mcasp->slot_width) in davinci_config_channel_size()
799 slot_width = mcasp->slot_width; in davinci_config_channel_size()
800 else if (mcasp->max_format_width) in davinci_config_channel_size()
801 slot_width = mcasp->max_format_width; in davinci_config_channel_size()
811 * left aligned formats: rotate w/ (slot_width - sample_width) in davinci_config_channel_size()
813 if ((mcasp->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) == in davinci_config_channel_size()
819 rx_rotate = (slot_width - sample_width) / 4; in davinci_config_channel_size()
822 /* mapping of the XSSZ bit-field as described in the datasheet */ in davinci_config_channel_size()
823 fmt = (slot_width >> 1) - 1; in davinci_config_channel_size()
825 if (mcasp->op_mode != DAVINCI_MCASP_DIT_MODE) { in davinci_config_channel_size()
838 * 16 bit to 23-8 (TXROT=6, rotate 24 bits) in davinci_config_channel_size()
839 * 24 bit to 23-0 (TXROT=0, rotate 0 bits) in davinci_config_channel_size()
859 struct snd_dmaengine_dai_dma_data *dma_data = &mcasp->dma_data[stream]; in mcasp_common_hw_param()
863 u8 slots = mcasp->tdm_slots; in mcasp_common_hw_param()
869 if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE) in mcasp_common_hw_param()
872 max_active_serializers = (channels + slots - 1) / slots; in mcasp_common_hw_param()
875 if (mcasp->version < MCASP_VERSION_3) in mcasp_common_hw_param()
883 mcasp->active_serializers[SNDRV_PCM_STREAM_CAPTURE]; in mcasp_common_hw_param()
888 mcasp->active_serializers[SNDRV_PCM_STREAM_PLAYBACK]; in mcasp_common_hw_param()
892 for (i = 0; i < mcasp->num_serializer; i++) { in mcasp_common_hw_param()
894 mcasp->serial_dir[i]); in mcasp_common_hw_param()
895 if (mcasp->serial_dir[i] == TX_MODE && in mcasp_common_hw_param()
898 mcasp->dismod, DISMOD_MASK); in mcasp_common_hw_param()
899 set_bit(PIN_BIT_AXR(i), &mcasp->pdir); in mcasp_common_hw_param()
901 } else if (mcasp->serial_dir[i] == RX_MODE && in mcasp_common_hw_param()
903 clear_bit(PIN_BIT_AXR(i), &mcasp->pdir); in mcasp_common_hw_param()
910 if (mcasp->serial_dir[i] != INACTIVE_MODE) in mcasp_common_hw_param()
913 mcasp->dismod, DISMOD_MASK); in mcasp_common_hw_param()
914 clear_bit(PIN_BIT_AXR(i), &mcasp->pdir); in mcasp_common_hw_param()
920 numevt = mcasp->txnumevt; in mcasp_common_hw_param()
921 reg = mcasp->fifo_base + MCASP_WFIFOCTL_OFFSET; in mcasp_common_hw_param()
924 numevt = mcasp->rxnumevt; in mcasp_common_hw_param()
925 reg = mcasp->fifo_base + MCASP_RFIFOCTL_OFFSET; in mcasp_common_hw_param()
929 dev_warn(mcasp->dev, "stream has more channels (%d) than are " in mcasp_common_hw_param()
932 return -EINVAL; in mcasp_common_hw_param()
941 * DMA request to provide data for all serializers. in mcasp_common_hw_param()
945 dma_data->maxburst = active_serializers; in mcasp_common_hw_param()
947 dma_data->maxburst = 0; in mcasp_common_hw_param()
950 goto out; in mcasp_common_hw_param()
954 dev_err(mcasp->dev, "Invalid combination of period words and " in mcasp_common_hw_param()
957 return -EINVAL; in mcasp_common_hw_param()
968 numevt -= active_serializers; in mcasp_common_hw_param()
978 dma_data->maxburst = numevt; in mcasp_common_hw_param()
980 out: in mcasp_common_hw_param()
981 mcasp->active_serializers[stream] = active_serializers; in mcasp_common_hw_param()
995 total_slots = mcasp->tdm_slots; in mcasp_i2s_hw_param()
1003 if (mcasp->tdm_mask[stream]) { in mcasp_i2s_hw_param()
1004 active_slots = hweight32(mcasp->tdm_mask[stream]); in mcasp_i2s_hw_param()
1005 active_serializers = (channels + active_slots - 1) / in mcasp_i2s_hw_param()
1010 if ((1 << i) & mcasp->tdm_mask[stream]) { in mcasp_i2s_hw_param()
1012 if (--active_slots <= 0) in mcasp_i2s_hw_param()
1017 active_serializers = (channels + total_slots - 1) / total_slots; in mcasp_i2s_hw_param()
1029 if (!mcasp->dat_port) in mcasp_i2s_hw_param()
1047 if (mcasp_is_synchronous(mcasp) && !mcasp->channels) in mcasp_i2s_hw_param()
1059 u8 *cs_bytes = (u8 *)&mcasp->iec958_status; in mcasp_dit_hw_param()
1061 if (!mcasp->dat_port) in mcasp_dit_hw_param()
1071 /* Set the TX tdm : for all the slots */ in mcasp_dit_hw_param()
1110 dev_err(mcasp->dev, "unsupported sampling rate: %d\n", rate); in mcasp_dit_hw_param()
1111 return -EINVAL; in mcasp_dit_hw_param()
1114 mcasp_set_reg(mcasp, DAVINCI_MCASP_DITCSRA_REG, mcasp->iec958_status); in mcasp_dit_hw_param()
1115 mcasp_set_reg(mcasp, DAVINCI_MCASP_DITCSRB_REG, mcasp->iec958_status); in mcasp_dit_hw_param()
1143 dev_warn(mcasp->dev, "Too fast reference clock (%u)\n", in davinci_mcasp_calc_clk_div()
1150 ((sysclk_freq / div) - bclk_freq) > in davinci_mcasp_calc_clk_div()
1151 (bclk_freq - (sysclk_freq / (div+1)))) { in davinci_mcasp_calc_clk_div()
1153 rem = rem - bclk_freq; in davinci_mcasp_calc_clk_div()
1157 (int)bclk_freq)) / div - 1000000; in davinci_mcasp_calc_clk_div()
1161 dev_info(mcasp->dev, "Sample-rate is off by %d PPM\n", in davinci_mcasp_calc_clk_div()
1175 if (!mcasp->txnumevt) in davinci_mcasp_tx_delay()
1178 return mcasp_get_reg(mcasp, mcasp->fifo_base + MCASP_WFIFOSTS_OFFSET); in davinci_mcasp_tx_delay()
1183 if (!mcasp->rxnumevt) in davinci_mcasp_rx_delay()
1186 return mcasp_get_reg(mcasp, mcasp->fifo_base + MCASP_RFIFOSTS_OFFSET); in davinci_mcasp_rx_delay()
1196 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) in davinci_mcasp_delay()
1206 return fifo_use / substream->runtime->channels; in davinci_mcasp_delay()
1246 printk(KERN_WARNING "davinci-mcasp: unsupported PCM format"); in davinci_mcasp_hw_params()
1247 return -EINVAL; in davinci_mcasp_hw_params()
1250 ret = davinci_mcasp_set_dai_fmt(cpu_dai, mcasp->dai_fmt); in davinci_mcasp_hw_params()
1258 if (mcasp->bclk_master && mcasp->bclk_div == 0 && mcasp->sysclk_freq) { in davinci_mcasp_hw_params()
1259 int slots = mcasp->tdm_slots; in davinci_mcasp_hw_params()
1264 if (mcasp->slot_width) in davinci_mcasp_hw_params()
1265 sbits = mcasp->slot_width; in davinci_mcasp_hw_params()
1267 if (mcasp->op_mode == DAVINCI_MCASP_IIS_MODE) in davinci_mcasp_hw_params()
1272 davinci_mcasp_calc_clk_div(mcasp, mcasp->sysclk_freq, in davinci_mcasp_hw_params()
1276 ret = mcasp_common_hw_param(mcasp, substream->stream, in davinci_mcasp_hw_params()
1281 if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE) in davinci_mcasp_hw_params()
1284 ret = mcasp_i2s_hw_param(mcasp, substream->stream, in davinci_mcasp_hw_params()
1292 if (mcasp->op_mode == DAVINCI_MCASP_IIS_MODE) { in davinci_mcasp_hw_params()
1293 mcasp->channels = channels; in davinci_mcasp_hw_params()
1294 if (!mcasp->max_format_width) in davinci_mcasp_hw_params()
1295 mcasp->max_format_width = word_length; in davinci_mcasp_hw_params()
1311 davinci_mcasp_start(mcasp, substream->stream); in davinci_mcasp_trigger()
1316 davinci_mcasp_stop(mcasp, substream->stream); in davinci_mcasp_trigger()
1320 ret = -EINVAL; in davinci_mcasp_trigger()
1329 struct davinci_mcasp_ruledata *rd = rule->private; in davinci_mcasp_hw_rule_slot_width()
1335 slot_width = rd->mcasp->slot_width; in davinci_mcasp_hw_rule_slot_width()
1351 struct davinci_mcasp_ruledata *rd = rule->private; in davinci_mcasp_hw_rule_format_width()
1357 format_width = rd->mcasp->max_format_width; in davinci_mcasp_hw_rule_format_width()
1380 struct davinci_mcasp_ruledata *rd = rule->private; in davinci_mcasp_hw_rule_rate()
1384 int slots = rd->mcasp->tdm_slots; in davinci_mcasp_hw_rule_rate()
1388 if (rd->mcasp->slot_width) in davinci_mcasp_hw_rule_rate()
1389 sbits = rd->mcasp->slot_width; in davinci_mcasp_hw_rule_rate()
1401 if (rd->mcasp->auxclk_fs_ratio) in davinci_mcasp_hw_rule_rate()
1403 rd->mcasp->auxclk_fs_ratio; in davinci_mcasp_hw_rule_rate()
1405 sysclk_freq = rd->mcasp->sysclk_freq; in davinci_mcasp_hw_rule_rate()
1407 ppm = davinci_mcasp_calc_clk_div(rd->mcasp, sysclk_freq, in davinci_mcasp_hw_rule_rate()
1419 dev_dbg(rd->mcasp->dev, in davinci_mcasp_hw_rule_rate()
1420 "Frequencies %d-%d -> %d-%d for %d sbits and %d tdm slots\n", in davinci_mcasp_hw_rule_rate()
1421 ri->min, ri->max, range.min, range.max, sbits, slots); in davinci_mcasp_hw_rule_rate()
1423 return snd_interval_refine(hw_param_interval(params, rule->var), in davinci_mcasp_hw_rule_rate()
1430 struct davinci_mcasp_ruledata *rd = rule->private; in davinci_mcasp_hw_rule_format()
1434 int slots = rd->mcasp->tdm_slots; in davinci_mcasp_hw_rule_format()
1445 if (rd->mcasp->auxclk_fs_ratio) in davinci_mcasp_hw_rule_format()
1447 rd->mcasp->auxclk_fs_ratio; in davinci_mcasp_hw_rule_format()
1449 sysclk_freq = rd->mcasp->sysclk_freq; in davinci_mcasp_hw_rule_format()
1451 if (rd->mcasp->slot_width) in davinci_mcasp_hw_rule_format()
1452 sbits = rd->mcasp->slot_width; in davinci_mcasp_hw_rule_format()
1454 ppm = davinci_mcasp_calc_clk_div(rd->mcasp, sysclk_freq, in davinci_mcasp_hw_rule_format()
1463 dev_dbg(rd->mcasp->dev, in davinci_mcasp_hw_rule_format()
1464 "%d possible sample format for %d Hz and %d tdm slots\n", in davinci_mcasp_hw_rule_format()
1489 &mcasp->ruledata[substream->stream]; in davinci_mcasp_startup()
1492 int tdm_slots = mcasp->tdm_slots; in davinci_mcasp_startup()
1495 if (mcasp->substreams[substream->stream]) in davinci_mcasp_startup()
1496 return -EBUSY; in davinci_mcasp_startup()
1498 mcasp->substreams[substream->stream] = substream; in davinci_mcasp_startup()
1500 if (mcasp->tdm_mask[substream->stream]) in davinci_mcasp_startup()
1501 tdm_slots = hweight32(mcasp->tdm_mask[substream->stream]); in davinci_mcasp_startup()
1503 if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE) in davinci_mcasp_startup()
1508 * number of serializers for the direction * tdm slots per serializer in davinci_mcasp_startup()
1510 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) in davinci_mcasp_startup()
1515 for (i = 0; i < mcasp->num_serializer; i++) { in davinci_mcasp_startup()
1516 if (mcasp->serial_dir[i] == dir) in davinci_mcasp_startup()
1519 ruledata->serializers = max_channels; in davinci_mcasp_startup()
1520 ruledata->mcasp = mcasp; in davinci_mcasp_startup()
1529 if (mcasp->channels && mcasp->channels < max_channels && in davinci_mcasp_startup()
1530 ruledata->serializers == 1) in davinci_mcasp_startup()
1531 max_channels = mcasp->channels; in davinci_mcasp_startup()
1539 snd_pcm_hw_constraint_minmax(substream->runtime, in davinci_mcasp_startup()
1543 snd_pcm_hw_constraint_list(substream->runtime, in davinci_mcasp_startup()
1545 &mcasp->chconstr[substream->stream]); in davinci_mcasp_startup()
1547 if (mcasp->max_format_width) { in davinci_mcasp_startup()
1552 ret = snd_pcm_hw_rule_add(substream->runtime, 0, in davinci_mcasp_startup()
1556 SNDRV_PCM_HW_PARAM_FORMAT, -1); in davinci_mcasp_startup()
1560 else if (mcasp->slot_width) { in davinci_mcasp_startup()
1562 ret = snd_pcm_hw_rule_add(substream->runtime, 0, in davinci_mcasp_startup()
1566 SNDRV_PCM_HW_PARAM_FORMAT, -1); in davinci_mcasp_startup()
1575 if (mcasp->bclk_master && mcasp->bclk_div == 0 && mcasp->sysclk_freq) { in davinci_mcasp_startup()
1576 ret = snd_pcm_hw_rule_add(substream->runtime, 0, in davinci_mcasp_startup()
1580 SNDRV_PCM_HW_PARAM_FORMAT, -1); in davinci_mcasp_startup()
1583 ret = snd_pcm_hw_rule_add(substream->runtime, 0, in davinci_mcasp_startup()
1587 SNDRV_PCM_HW_PARAM_RATE, -1); in davinci_mcasp_startup()
1592 snd_pcm_hw_rule_add(substream->runtime, 0, in davinci_mcasp_startup()
1595 SNDRV_PCM_HW_PARAM_PERIOD_SIZE, -1); in davinci_mcasp_startup()
1605 mcasp->substreams[substream->stream] = NULL; in davinci_mcasp_shutdown()
1606 mcasp->active_serializers[substream->stream] = 0; in davinci_mcasp_shutdown()
1608 if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE) in davinci_mcasp_shutdown()
1612 mcasp->channels = 0; in davinci_mcasp_shutdown()
1613 mcasp->max_format_width = 0; in davinci_mcasp_shutdown()
1632 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; in davinci_mcasp_iec958_info()
1633 uinfo->count = 1; in davinci_mcasp_iec958_info()
1644 memcpy(uctl->value.iec958.status, &mcasp->iec958_status, in davinci_mcasp_iec958_get()
1645 sizeof(mcasp->iec958_status)); in davinci_mcasp_iec958_get()
1656 memcpy(&mcasp->iec958_status, uctl->value.iec958.status, in davinci_mcasp_iec958_put()
1657 sizeof(mcasp->iec958_status)); in davinci_mcasp_iec958_put()
1668 memset(ucontrol->value.iec958.status, 0xff, sizeof(mcasp->iec958_status)); in davinci_mcasp_iec958_con_mask_get()
1692 unsigned char *cs = (u8 *)&mcasp->iec958_status; in davinci_mcasp_init_iec958_status()
1704 dai->playback_dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK]; in davinci_mcasp_dai_probe()
1705 dai->capture_dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_CAPTURE]; in davinci_mcasp_dai_probe()
1707 if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE) { in davinci_mcasp_dai_probe()
1731 .name = "davinci-mcasp.0",
1752 .name = "davinci-mcasp.1",
1768 .name = "davinci-mcasp",
1806 .compatible = "ti,dm646x-mcasp-audio",
1807 .data = &dm646x_mcasp_pdata,
1810 .compatible = "ti,da830-mcasp-audio",
1811 .data = &da830_mcasp_pdata,
1814 .compatible = "ti,am33xx-mcasp-audio",
1815 .data = &am33xx_mcasp_pdata,
1818 .compatible = "ti,dra7-mcasp-audio",
1819 .data = &dra7_mcasp_pdata,
1822 .compatible = "ti,omap4-mcasp-audio",
1823 .data = &omap_mcasp_pdata,
1831 struct device_node *node = pdev->dev.of_node; in mcasp_reparent_fck()
1843 dev_warn(&pdev->dev, "Update the bindings to use assigned-clocks!\n"); in mcasp_reparent_fck()
1845 gfclk = clk_get(&pdev->dev, "fck"); in mcasp_reparent_fck()
1847 dev_err(&pdev->dev, "failed to get fck\n"); in mcasp_reparent_fck()
1853 dev_err(&pdev->dev, "failed to get parent clock\n"); in mcasp_reparent_fck()
1860 dev_err(&pdev->dev, "failed to reparent fck\n"); in mcasp_reparent_fck()
1874 return of_property_read_bool(mcasp->dev->of_node, "gpio-controller"); in davinci_mcasp_have_gpiochip()
1883 const struct of_device_id *match = of_match_device(mcasp_dt_ids, &pdev->dev); in davinci_mcasp_get_config()
1884 struct device_node *np = pdev->dev.of_node; in davinci_mcasp_get_config()
1890 if (pdev->dev.platform_data) { in davinci_mcasp_get_config()
1891 pdata = pdev->dev.platform_data; in davinci_mcasp_get_config()
1892 pdata->dismod = DISMOD_LOW; in davinci_mcasp_get_config()
1893 goto out; in davinci_mcasp_get_config()
1895 pdata = devm_kmemdup(&pdev->dev, match->data, sizeof(*pdata), in davinci_mcasp_get_config()
1898 return -ENOMEM; in davinci_mcasp_get_config()
1900 dev_err(&pdev->dev, "No compatible match found\n"); in davinci_mcasp_get_config()
1901 return -EINVAL; in davinci_mcasp_get_config()
1904 if (of_property_read_u32(np, "op-mode", &val) == 0) { in davinci_mcasp_get_config()
1905 pdata->op_mode = val; in davinci_mcasp_get_config()
1907 mcasp->missing_audio_param = true; in davinci_mcasp_get_config()
1908 goto out; in davinci_mcasp_get_config()
1911 if (of_property_read_u32(np, "tdm-slots", &val) == 0) { in davinci_mcasp_get_config()
1913 dev_err(&pdev->dev, "tdm-slots must be in rage [2-32]\n"); in davinci_mcasp_get_config()
1914 return -EINVAL; in davinci_mcasp_get_config()
1917 pdata->tdm_slots = val; in davinci_mcasp_get_config()
1918 } else if (pdata->op_mode == DAVINCI_MCASP_IIS_MODE) { in davinci_mcasp_get_config()
1919 mcasp->missing_audio_param = true; in davinci_mcasp_get_config()
1920 goto out; in davinci_mcasp_get_config()
1923 of_serial_dir32 = of_get_property(np, "serial-dir", &val); in davinci_mcasp_get_config()
1926 u8 *of_serial_dir = devm_kzalloc(&pdev->dev, in davinci_mcasp_get_config()
1930 return -ENOMEM; in davinci_mcasp_get_config()
1935 pdata->num_serializer = val; in davinci_mcasp_get_config()
1936 pdata->serial_dir = of_serial_dir; in davinci_mcasp_get_config()
1938 mcasp->missing_audio_param = true; in davinci_mcasp_get_config()
1939 goto out; in davinci_mcasp_get_config()
1942 if (of_property_read_u32(np, "tx-num-evt", &val) == 0) in davinci_mcasp_get_config()
1943 pdata->txnumevt = val; in davinci_mcasp_get_config()
1945 if (of_property_read_u32(np, "rx-num-evt", &val) == 0) in davinci_mcasp_get_config()
1946 pdata->rxnumevt = val; in davinci_mcasp_get_config()
1948 if (of_property_read_u32(np, "auxclk-fs-ratio", &val) == 0) in davinci_mcasp_get_config()
1949 mcasp->auxclk_fs_ratio = val; in davinci_mcasp_get_config()
1953 pdata->dismod = DISMOD_VAL(val); in davinci_mcasp_get_config()
1955 dev_warn(&pdev->dev, "Invalid dismod value: %u\n", val); in davinci_mcasp_get_config()
1956 pdata->dismod = DISMOD_LOW; in davinci_mcasp_get_config()
1959 pdata->dismod = DISMOD_LOW; in davinci_mcasp_get_config()
1962 out: in davinci_mcasp_get_config()
1963 mcasp->pdata = pdata; in davinci_mcasp_get_config()
1965 if (mcasp->missing_audio_param) { in davinci_mcasp_get_config()
1967 dev_dbg(&pdev->dev, "Missing DT parameter(s) for audio\n"); in davinci_mcasp_get_config()
1971 dev_err(&pdev->dev, "Insufficient DT parameter(s)\n"); in davinci_mcasp_get_config()
1972 return -ENODEV; in davinci_mcasp_get_config()
1975 mcasp->op_mode = pdata->op_mode; in davinci_mcasp_get_config()
1976 /* sanity check for tdm slots parameter */ in davinci_mcasp_get_config()
1977 if (mcasp->op_mode == DAVINCI_MCASP_IIS_MODE) { in davinci_mcasp_get_config()
1978 if (pdata->tdm_slots < 2) { in davinci_mcasp_get_config()
1979 dev_warn(&pdev->dev, "invalid tdm slots: %d\n", in davinci_mcasp_get_config()
1980 pdata->tdm_slots); in davinci_mcasp_get_config()
1981 mcasp->tdm_slots = 2; in davinci_mcasp_get_config()
1982 } else if (pdata->tdm_slots > 32) { in davinci_mcasp_get_config()
1983 dev_warn(&pdev->dev, "invalid tdm slots: %d\n", in davinci_mcasp_get_config()
1984 pdata->tdm_slots); in davinci_mcasp_get_config()
1985 mcasp->tdm_slots = 32; in davinci_mcasp_get_config()
1987 mcasp->tdm_slots = pdata->tdm_slots; in davinci_mcasp_get_config()
1990 mcasp->tdm_slots = 32; in davinci_mcasp_get_config()
1993 mcasp->num_serializer = pdata->num_serializer; in davinci_mcasp_get_config()
1995 mcasp->context.xrsr_regs = devm_kcalloc(&pdev->dev, in davinci_mcasp_get_config()
1996 mcasp->num_serializer, sizeof(u32), in davinci_mcasp_get_config()
1998 if (!mcasp->context.xrsr_regs) in davinci_mcasp_get_config()
1999 return -ENOMEM; in davinci_mcasp_get_config()
2001 mcasp->serial_dir = pdata->serial_dir; in davinci_mcasp_get_config()
2002 mcasp->version = pdata->version; in davinci_mcasp_get_config()
2003 mcasp->txnumevt = pdata->txnumevt; in davinci_mcasp_get_config()
2004 mcasp->rxnumevt = pdata->rxnumevt; in davinci_mcasp_get_config()
2005 mcasp->dismod = pdata->dismod; in davinci_mcasp_get_config()
2023 if (!mcasp->dev->of_node) in davinci_mcasp_get_dma_type()
2026 tmp = mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK].filter_data; in davinci_mcasp_get_dma_type()
2027 chan = dma_request_chan(mcasp->dev, tmp); in davinci_mcasp_get_dma_type()
2029 return dev_err_probe(mcasp->dev, PTR_ERR(chan), in davinci_mcasp_get_dma_type()
2031 if (WARN_ON(!chan->device || !chan->device->dev)) { in davinci_mcasp_get_dma_type()
2033 return -EINVAL; in davinci_mcasp_get_dma_type()
2036 if (chan->device->dev->of_node) in davinci_mcasp_get_dma_type()
2037 ret = of_property_read_string(chan->device->dev->of_node, in davinci_mcasp_get_dma_type()
2040 dev_dbg(mcasp->dev, "DMA controller has no of-node\n"); in davinci_mcasp_get_dma_type()
2046 dev_dbg(mcasp->dev, "DMA controller compatible = \"%s\"\n", tmp); in davinci_mcasp_get_dma_type()
2062 if (pdata->version != MCASP_VERSION_4) in davinci_mcasp_txdma_offset()
2063 return pdata->tx_dma_offset; in davinci_mcasp_txdma_offset()
2065 for (i = 0; i < pdata->num_serializer; i++) { in davinci_mcasp_txdma_offset()
2066 if (pdata->serial_dir[i] == TX_MODE) { in davinci_mcasp_txdma_offset()
2085 if (pdata->version != MCASP_VERSION_4) in davinci_mcasp_rxdma_offset()
2086 return pdata->rx_dma_offset; in davinci_mcasp_rxdma_offset()
2088 for (i = 0; i < pdata->num_serializer; i++) { in davinci_mcasp_rxdma_offset()
2089 if (pdata->serial_dir[i] == RX_MODE) { in davinci_mcasp_rxdma_offset()
2108 if (mcasp->num_serializer && offset < mcasp->num_serializer && in davinci_mcasp_gpio_request()
2109 mcasp->serial_dir[offset] != INACTIVE_MODE) { in davinci_mcasp_gpio_request()
2110 dev_err(mcasp->dev, "AXR%u pin is used for audio\n", offset); in davinci_mcasp_gpio_request()
2111 return -EBUSY; in davinci_mcasp_gpio_request()
2115 return pm_runtime_resume_and_get(mcasp->dev); in davinci_mcasp_gpio_request()
2128 pm_runtime_put_sync(mcasp->dev); in davinci_mcasp_gpio_free()
2217 .base = -1,
2226 mcasp->gpio_chip = davinci_mcasp_template_chip; in davinci_mcasp_init_gpiochip()
2227 mcasp->gpio_chip.label = dev_name(mcasp->dev); in davinci_mcasp_init_gpiochip()
2228 mcasp->gpio_chip.parent = mcasp->dev; in davinci_mcasp_init_gpiochip()
2230 return devm_gpiochip_add_data(mcasp->dev, &mcasp->gpio_chip, mcasp); in davinci_mcasp_init_gpiochip()
2249 if (!pdev->dev.platform_data && !pdev->dev.of_node) { in davinci_mcasp_probe()
2250 dev_err(&pdev->dev, "No platform data supplied\n"); in davinci_mcasp_probe()
2251 return -EINVAL; in davinci_mcasp_probe()
2254 mcasp = devm_kzalloc(&pdev->dev, sizeof(struct davinci_mcasp), in davinci_mcasp_probe()
2257 return -ENOMEM; in davinci_mcasp_probe()
2261 dev_warn(&pdev->dev, in davinci_mcasp_probe()
2265 dev_err(&pdev->dev, "no mem resource?\n"); in davinci_mcasp_probe()
2266 return -ENODEV; in davinci_mcasp_probe()
2270 mcasp->base = devm_ioremap_resource(&pdev->dev, mem); in davinci_mcasp_probe()
2271 if (IS_ERR(mcasp->base)) in davinci_mcasp_probe()
2272 return PTR_ERR(mcasp->base); in davinci_mcasp_probe()
2274 dev_set_drvdata(&pdev->dev, mcasp); in davinci_mcasp_probe()
2275 pm_runtime_enable(&pdev->dev); in davinci_mcasp_probe()
2277 mcasp->dev = &pdev->dev; in davinci_mcasp_probe()
2283 pm_runtime_get_sync(mcasp->dev); in davinci_mcasp_probe()
2285 pm_runtime_put(mcasp->dev); in davinci_mcasp_probe()
2288 if (mcasp->missing_audio_param) in davinci_mcasp_probe()
2293 irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_common", in davinci_mcasp_probe()
2294 dev_name(&pdev->dev)); in davinci_mcasp_probe()
2296 ret = -ENOMEM; in davinci_mcasp_probe()
2299 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, in davinci_mcasp_probe()
2304 dev_err(&pdev->dev, "common IRQ request failed\n"); in davinci_mcasp_probe()
2308 mcasp->irq_request[SNDRV_PCM_STREAM_PLAYBACK] = XUNDRN; in davinci_mcasp_probe()
2309 mcasp->irq_request[SNDRV_PCM_STREAM_CAPTURE] = ROVRN; in davinci_mcasp_probe()
2314 irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_rx", in davinci_mcasp_probe()
2315 dev_name(&pdev->dev)); in davinci_mcasp_probe()
2317 ret = -ENOMEM; in davinci_mcasp_probe()
2320 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, in davinci_mcasp_probe()
2324 dev_err(&pdev->dev, "RX IRQ request failed\n"); in davinci_mcasp_probe()
2328 mcasp->irq_request[SNDRV_PCM_STREAM_CAPTURE] = ROVRN; in davinci_mcasp_probe()
2333 irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_tx", in davinci_mcasp_probe()
2334 dev_name(&pdev->dev)); in davinci_mcasp_probe()
2336 ret = -ENOMEM; in davinci_mcasp_probe()
2339 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, in davinci_mcasp_probe()
2343 dev_err(&pdev->dev, "TX IRQ request failed\n"); in davinci_mcasp_probe()
2347 mcasp->irq_request[SNDRV_PCM_STREAM_PLAYBACK] = XUNDRN; in davinci_mcasp_probe()
2352 mcasp->dat_port = true; in davinci_mcasp_probe()
2354 dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK]; in davinci_mcasp_probe()
2355 dma_data->filter_data = "tx"; in davinci_mcasp_probe()
2357 dma_data->addr = dat->start; in davinci_mcasp_probe()
2362 if (mcasp->version == MCASP_VERSION_OMAP) in davinci_mcasp_probe()
2363 dma_data->addr += davinci_mcasp_txdma_offset(mcasp->pdata); in davinci_mcasp_probe()
2365 dma_data->addr = mem->start + davinci_mcasp_txdma_offset(mcasp->pdata); in davinci_mcasp_probe()
2370 if (mcasp->op_mode != DAVINCI_MCASP_DIT_MODE) { in davinci_mcasp_probe()
2371 dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_CAPTURE]; in davinci_mcasp_probe()
2372 dma_data->filter_data = "rx"; in davinci_mcasp_probe()
2374 dma_data->addr = dat->start; in davinci_mcasp_probe()
2376 dma_data->addr = in davinci_mcasp_probe()
2377 mem->start + davinci_mcasp_rxdma_offset(mcasp->pdata); in davinci_mcasp_probe()
2380 if (mcasp->version < MCASP_VERSION_3) { in davinci_mcasp_probe()
2381 mcasp->fifo_base = DAVINCI_MCASP_V2_AFIFO_BASE; in davinci_mcasp_probe()
2382 /* dma_params->dma_addr is pointing to the data port address */ in davinci_mcasp_probe()
2383 mcasp->dat_port = true; in davinci_mcasp_probe()
2385 mcasp->fifo_base = DAVINCI_MCASP_V3_AFIFO_BASE; in davinci_mcasp_probe()
2389 * scenarios. Maximum number tdm slots is 32 and there cannot in davinci_mcasp_probe()
2395 mcasp->chconstr[SNDRV_PCM_STREAM_PLAYBACK].list = in davinci_mcasp_probe()
2396 devm_kcalloc(mcasp->dev, in davinci_mcasp_probe()
2397 32 + mcasp->num_serializer - 1, in davinci_mcasp_probe()
2401 mcasp->chconstr[SNDRV_PCM_STREAM_CAPTURE].list = in davinci_mcasp_probe()
2402 devm_kcalloc(mcasp->dev, in davinci_mcasp_probe()
2403 32 + mcasp->num_serializer - 1, in davinci_mcasp_probe()
2407 if (!mcasp->chconstr[SNDRV_PCM_STREAM_PLAYBACK].list || in davinci_mcasp_probe()
2408 !mcasp->chconstr[SNDRV_PCM_STREAM_CAPTURE].list) { in davinci_mcasp_probe()
2409 ret = -ENOMEM; in davinci_mcasp_probe()
2419 ret = devm_snd_soc_register_component(&pdev->dev, &davinci_mcasp_component, in davinci_mcasp_probe()
2420 &davinci_mcasp_dai[mcasp->op_mode], 1); in davinci_mcasp_probe()
2428 ret = edma_pcm_platform_register(&pdev->dev); in davinci_mcasp_probe()
2431 if (mcasp->op_mode == DAVINCI_MCASP_IIS_MODE) in davinci_mcasp_probe()
2432 ret = sdma_pcm_platform_register(&pdev->dev, "tx", "rx"); in davinci_mcasp_probe()
2434 ret = sdma_pcm_platform_register(&pdev->dev, "tx", NULL); in davinci_mcasp_probe()
2437 ret = udma_pcm_platform_register(&pdev->dev); in davinci_mcasp_probe()
2440 dev_err(&pdev->dev, "No DMA controller found (%d)\n", ret); in davinci_mcasp_probe()
2442 case -EPROBE_DEFER: in davinci_mcasp_probe()
2447 dev_err(&pdev->dev, "register PCM failed: %d\n", ret); in davinci_mcasp_probe()
2454 dev_err(&pdev->dev, "gpiochip registration failed: %d\n", ret); in davinci_mcasp_probe()
2460 pm_runtime_disable(&pdev->dev); in davinci_mcasp_probe()
2466 pm_runtime_disable(&pdev->dev); in davinci_mcasp_remove()
2475 struct davinci_mcasp_context *context = &mcasp->context; in davinci_mcasp_runtime_suspend()
2480 context->config_regs[i] = mcasp_get_reg(mcasp, context_regs[i]); in davinci_mcasp_runtime_suspend()
2482 if (mcasp->txnumevt) { in davinci_mcasp_runtime_suspend()
2483 reg = mcasp->fifo_base + MCASP_WFIFOCTL_OFFSET; in davinci_mcasp_runtime_suspend()
2484 context->afifo_regs[0] = mcasp_get_reg(mcasp, reg); in davinci_mcasp_runtime_suspend()
2486 if (mcasp->rxnumevt) { in davinci_mcasp_runtime_suspend()
2487 reg = mcasp->fifo_base + MCASP_RFIFOCTL_OFFSET; in davinci_mcasp_runtime_suspend()
2488 context->afifo_regs[1] = mcasp_get_reg(mcasp, reg); in davinci_mcasp_runtime_suspend()
2491 for (i = 0; i < mcasp->num_serializer; i++) in davinci_mcasp_runtime_suspend()
2492 context->xrsr_regs[i] = mcasp_get_reg(mcasp, in davinci_mcasp_runtime_suspend()
2501 struct davinci_mcasp_context *context = &mcasp->context; in davinci_mcasp_runtime_resume()
2506 mcasp_set_reg(mcasp, context_regs[i], context->config_regs[i]); in davinci_mcasp_runtime_resume()
2508 if (mcasp->txnumevt) { in davinci_mcasp_runtime_resume()
2509 reg = mcasp->fifo_base + MCASP_WFIFOCTL_OFFSET; in davinci_mcasp_runtime_resume()
2510 mcasp_set_reg(mcasp, reg, context->afifo_regs[0]); in davinci_mcasp_runtime_resume()
2512 if (mcasp->rxnumevt) { in davinci_mcasp_runtime_resume()
2513 reg = mcasp->fifo_base + MCASP_RFIFOCTL_OFFSET; in davinci_mcasp_runtime_resume()
2514 mcasp_set_reg(mcasp, reg, context->afifo_regs[1]); in davinci_mcasp_runtime_resume()
2517 for (i = 0; i < mcasp->num_serializer; i++) in davinci_mcasp_runtime_resume()
2519 context->xrsr_regs[i]); in davinci_mcasp_runtime_resume()
2536 .name = "davinci-mcasp",