1 // SPDX-License-Identifier: GPL-2.0-only
12 #include <linux/clk-provider.h>
98 	st->data[0] = 0x80 | (reg << 1);  in __adrf6780_spi_read()
99 	st->data[1] = 0x0;  in __adrf6780_spi_read()
100 	st->data[2] = 0x0;  in __adrf6780_spi_read()
102 	t.rx_buf = &st->data[0];  in __adrf6780_spi_read()
103 	t.tx_buf = &st->data[0];  in __adrf6780_spi_read()
106 	ret = spi_sync_transfer(st->spi, &t, 1);  in __adrf6780_spi_read()
110 	*val = (get_unaligned_be24(&st->data[0]) >> 1) & GENMASK(15, 0);  in __adrf6780_spi_read()
120 	mutex_lock(&st->lock);  in adrf6780_spi_read()
122 	mutex_unlock(&st->lock);  in adrf6780_spi_read()
131 	put_unaligned_be24((val << 1) | (reg << 17), &st->data[0]);  in __adrf6780_spi_write()
133 	return spi_write(st->spi, &st->data[0], 3);  in __adrf6780_spi_write()
141 	mutex_lock(&st->lock);  in adrf6780_spi_write()
143 	mutex_unlock(&st->lock);  in adrf6780_spi_write()
169 	mutex_lock(&st->lock);  in adrf6780_spi_update_bits()
171 	mutex_unlock(&st->lock);  in adrf6780_spi_update_bits()
180 	mutex_lock(&st->lock);  in adrf6780_read_adc_raw()
200 		ret = -EINVAL;  in adrf6780_read_adc_raw()
213 	mutex_unlock(&st->lock);  in adrf6780_read_adc_raw()
248 		switch (chan->channel2) {  in adrf6780_read_raw()
259 			return -EINVAL;  in adrf6780_read_raw()
262 		return -EINVAL;  in adrf6780_read_raw()
276 		switch (chan->channel2) {  in adrf6780_write_raw()
288 			return -EINVAL;  in adrf6780_write_raw()
291 		return -EINVAL;  in adrf6780_write_raw()
350 	struct spi_device *spi = st->spi;  in adrf6780_reset()
356 		dev_err(&spi->dev, "ADRF6780 SPI software reset failed.\n");  in adrf6780_reset()
364 		dev_err(&spi->dev, "ADRF6780 SPI software reset disable failed.\n");  in adrf6780_reset()
375 	struct spi_device *spi = st->spi;  in adrf6780_init()
388 		dev_err(&spi->dev, "ADRF6780 Invalid Chip ID.\n");  in adrf6780_init()
389 		return -EINVAL;  in adrf6780_init()
402 	enable_reg = FIELD_PREP(ADRF6780_VGA_BUFFER_EN_MSK, st->vga_buff_en) |  in adrf6780_init()
404 			FIELD_PREP(ADRF6780_LO_BUFFER_EN_MSK, st->lo_buff_en) |  in adrf6780_init()
405 			FIELD_PREP(ADRF6780_IF_MODE_EN_MSK, st->if_mode_en) |  in adrf6780_init()
406 			FIELD_PREP(ADRF6780_IQ_MODE_EN_MSK, st->iq_mode_en) |  in adrf6780_init()
407 			FIELD_PREP(ADRF6780_LO_X2_EN_MSK, st->lo_x2_en) |  in adrf6780_init()
408 			FIELD_PREP(ADRF6780_LO_PPF_EN_MSK, st->lo_ppf_en) |  in adrf6780_init()
409 			FIELD_PREP(ADRF6780_LO_EN_MSK, st->lo_en) |  in adrf6780_init()
410 			FIELD_PREP(ADRF6780_UC_BIAS_EN_MSK, st->uc_bias_en);  in adrf6780_init()
419 					 FIELD_PREP(ADRF6780_LO_SIDEBAND_MSK, st->lo_sideband));  in adrf6780_init()
425 		FIELD_PREP(ADRF6780_VDET_OUTPUT_SELECT_MSK, st->vdet_out_en));  in adrf6780_init()
430 	struct spi_device *spi = st->spi;  in adrf6780_properties_parse()
432 	st->vga_buff_en = device_property_read_bool(&spi->dev, "adi,vga-buff-en");  in adrf6780_properties_parse()
433 	st->lo_buff_en = device_property_read_bool(&spi->dev, "adi,lo-buff-en");  in adrf6780_properties_parse()
434 	st->if_mode_en = device_property_read_bool(&spi->dev, "adi,if-mode-en");  in adrf6780_properties_parse()
435 	st->iq_mode_en = device_property_read_bool(&spi->dev, "adi,iq-mode-en");  in adrf6780_properties_parse()
436 	st->lo_x2_en = device_property_read_bool(&spi->dev, "adi,lo-x2-en");  in adrf6780_properties_parse()
437 	st->lo_ppf_en = device_property_read_bool(&spi->dev, "adi,lo-ppf-en");  in adrf6780_properties_parse()
438 	st->lo_en = device_property_read_bool(&spi->dev, "adi,lo-en");  in adrf6780_properties_parse()
439 	st->uc_bias_en = device_property_read_bool(&spi->dev, "adi,uc-bias-en");  in adrf6780_properties_parse()
440 	st->lo_sideband = device_property_read_bool(&spi->dev, "adi,lo-sideband");  in adrf6780_properties_parse()
441 	st->vdet_out_en = device_property_read_bool(&spi->dev, "adi,vdet-out-en");  in adrf6780_properties_parse()
456 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));  in adrf6780_probe()
458 		return -ENOMEM;  in adrf6780_probe()
462 	indio_dev->info = &adrf6780_info;  in adrf6780_probe()
463 	indio_dev->name = "adrf6780";  in adrf6780_probe()
464 	indio_dev->channels = adrf6780_channels;  in adrf6780_probe()
465 	indio_dev->num_channels = ARRAY_SIZE(adrf6780_channels);  in adrf6780_probe()
467 	st->spi = spi;  in adrf6780_probe()
471 	st->clkin = devm_clk_get_enabled(&spi->dev, "lo_in");  in adrf6780_probe()
472 	if (IS_ERR(st->clkin))  in adrf6780_probe()
473 		return dev_err_probe(&spi->dev, PTR_ERR(st->clkin),  in adrf6780_probe()
474 				     "failed to get the LO input clock\n");  in adrf6780_probe()
476 	mutex_init(&st->lock);  in adrf6780_probe()
482 	ret = devm_add_action_or_reset(&spi->dev, adrf6780_powerdown, st);  in adrf6780_probe()
486 	return devm_iio_device_register(&spi->dev, indio_dev);  in adrf6780_probe()