iio/adc/stm32-dfsdm-adc.c

11 #include <linux/iio/adc/stm32-dfsdm-adc.h>
28 #include "stm32-dfsdm.h"
72 	struct stm32_dfsdm *dfsdm;
317 	struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[adc->fl_id];
338 	struct regmap *regmap = adc->dfsdm->regmap;
358 	struct regmap *regmap = adc->dfsdm->regmap;
370 static int stm32_dfsdm_chan_configure(struct stm32_dfsdm *dfsdm,
374 	struct regmap *regmap = dfsdm->regmap;
396 	struct stm32_dfsdm *dfsdm = adc->dfsdm;
400 	ret = regmap_update_bits(dfsdm->regmap, DFSDM_CR1(fl_id),
410 	return regmap_update_bits(dfsdm->regmap, DFSDM_CR1(fl_id),
415 static void stm32_dfsdm_stop_filter(struct stm32_dfsdm *dfsdm,
419 	regmap_update_bits(dfsdm->regmap, DFSDM_CR1(fl_id),
428 	struct regmap *regmap = adc->dfsdm->regmap;
457 	struct regmap *regmap = adc->dfsdm->regmap;
458 	struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[fl_id];
503 	struct regmap *regmap = adc->dfsdm->regmap;
504 	struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[fl_id];
598 static int stm32_dfsdm_channel_parse_of(struct stm32_dfsdm *dfsdm,
616 	if (ch->channel >= dfsdm->num_chs) {
619 			ch->channel, dfsdm->num_chs);
633 	df_ch =  &dfsdm->ch_list[ch->channel];
709 	struct stm32_dfsdm_channel *ch = &adc->dfsdm->ch_list[chan->channel];
740 	struct regmap *regmap = adc->dfsdm->regmap;
773 	struct regmap *regmap = adc->dfsdm->regmap;
775 	stm32_dfsdm_stop_filter(adc->dfsdm, adc->fl_id);
830 	struct stm32_dfsdm_filter *fl = &adc->dfsdm->fl_list[adc->fl_id];
911 		.src_addr = (dma_addr_t)adc->dfsdm->phys_base,
954 		ret = regmap_update_bits(adc->dfsdm->regmap,
960 		ret = regmap_update_bits(adc->dfsdm->regmap,
984 	regmap_update_bits(adc->dfsdm->regmap, DFSDM_CR1(adc->fl_id),
1016 	ret = stm32_dfsdm_start_dfsdm(adc->dfsdm);
1037 	stm32_dfsdm_stop_dfsdm(adc->dfsdm);
1053 	stm32_dfsdm_stop_dfsdm(adc->dfsdm);
1126 	ret = stm32_dfsdm_start_dfsdm(adc->dfsdm);
1130 	ret = regmap_update_bits(adc->dfsdm->regmap, DFSDM_CR2(adc->fl_id),
1139 		regmap_update_bits(adc->dfsdm->regmap, DFSDM_CR2(adc->fl_id),
1148 	regmap_update_bits(adc->dfsdm->regmap, DFSDM_CR2(adc->fl_id),
1163 	stm32_dfsdm_stop_dfsdm(adc->dfsdm);
1173 	struct stm32_dfsdm_channel *ch = &adc->dfsdm->ch_list[chan->channel];
1179 		spi_freq = adc->dfsdm->spi_master_freq;
1183 		spi_freq = adc->dfsdm->spi_master_freq / 2;
1293 	struct regmap *regmap = adc->dfsdm->regmap;
1376 	ret = stm32_dfsdm_channel_parse_of(adc->dfsdm, indio_dev, ch);
1400 	return stm32_dfsdm_chan_configure(adc->dfsdm,
1401 					  &adc->dfsdm->ch_list[ch->channel]);
1424 	d_ch = &adc->dfsdm->ch_list[ch->channel];
1426 		adc->spi_freq = adc->dfsdm->spi_master_freq;
1448 	if (num_ch < 0 || num_ch > adc->dfsdm->num_chs) {
1515 		.compatible = "st,stm32-dfsdm-adc",
1519 		.compatible = "st,stm32-dfsdm-dmic",
1544 	adc->dfsdm = dev_get_drvdata(dev->parent);
1552 	if (ret != 0 || adc->fl_id >= adc->dfsdm->num_fls) {
1557 	name = devm_kzalloc(dev, sizeof("dfsdm-adc0"), GFP_KERNEL);
1562 		snprintf(name, sizeof("dfsdm-pdm0"), "dfsdm-pdm%d", adc->fl_id);
1565 		snprintf(name, sizeof("dfsdm-adc0"), "dfsdm-adc%d", adc->fl_id);
1590 	adc->dfsdm->fl_list[adc->fl_id].ford = val;
1594 		adc->dfsdm->fl_list[adc->fl_id].sync_mode = val;
1655 		ch = &adc->dfsdm->ch_list[chan->channel];
1656 		ret = stm32_dfsdm_chan_configure(adc->dfsdm, ch);
1673 		.name = "stm32-dfsdm-adc",