* [PATCH 0/2] @ 2021-10-26 15:27 Antoniu Miclaus 2021-10-26 15:27 ` [PATCH 1/2] iio: frequency: admv1013: add support for ADMV1013 Antoniu Miclaus 2021-10-26 15:27 ` [PATCH 2/2] dt-bindings: iio: frequency: add admv1013 doc Antoniu Miclaus 0 siblings, 2 replies; 4+ messages in thread From: Antoniu Miclaus @ 2021-10-26 15:27 UTC (permalink / raw) To: jic23, robh+dt, linux-iio, devicetree, linux-kernel; +Cc: Antoniu Miclaus The ADMV1013 is a wideband, microwave upconverter optimized for point to point microwave radio designs operating in the 24 GHz to 44 GHz radio frequency (RF) range. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADMV1013.pdf NOTE: Currently depends on 64-bit architecture since the input clock that server as Local Oscillator should support values in the range 5.4 GHz to 10.25 GHz. We might need some scaling implementation in the clock framework so that u64 types are supported when using 32-bit architectures. Antoniu Miclaus (2): iio: frequency: admv1013: add support for ADMV1013 dt-bindings: iio: frequency: add admv1013 doc .../bindings/iio/frequency/adi,admv1013.yaml | 110 ++++ drivers/iio/frequency/Kconfig | 13 + drivers/iio/frequency/Makefile | 1 + drivers/iio/frequency/admv1013.c | 579 ++++++++++++++++++ 4 files changed, 703 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/frequency/adi,admv1013.yaml create mode 100644 drivers/iio/frequency/admv1013.c -- 2.33.1 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 1/2] iio: frequency: admv1013: add support for ADMV1013 2021-10-26 15:27 [PATCH 0/2] Antoniu Miclaus @ 2021-10-26 15:27 ` Antoniu Miclaus 2021-10-27 7:31 ` Sa, Nuno 2021-10-26 15:27 ` [PATCH 2/2] dt-bindings: iio: frequency: add admv1013 doc Antoniu Miclaus 1 sibling, 1 reply; 4+ messages in thread From: Antoniu Miclaus @ 2021-10-26 15:27 UTC (permalink / raw) To: jic23, robh+dt, linux-iio, devicetree, linux-kernel; +Cc: Antoniu Miclaus The ADMV1013 is a wideband, microwave upconverter optimized for point to point microwave radio designs operating in the 24 GHz to 44 GHz radio frequency (RF) range. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADMV1013.pdf Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> --- drivers/iio/frequency/Kconfig | 13 + drivers/iio/frequency/Makefile | 1 + drivers/iio/frequency/admv1013.c | 579 +++++++++++++++++++++++++++++++ 3 files changed, 593 insertions(+) create mode 100644 drivers/iio/frequency/admv1013.c diff --git a/drivers/iio/frequency/Kconfig b/drivers/iio/frequency/Kconfig index 240b81502512..11792a5e7b83 100644 --- a/drivers/iio/frequency/Kconfig +++ b/drivers/iio/frequency/Kconfig @@ -49,5 +49,18 @@ config ADF4371 To compile this driver as a module, choose M here: the module will be called adf4371. + +config ADMV1013 + tristate "Analog Devices ADMV1013 Microwave Upconverter" + depends on SPI + depends on COMMON_CLK + depends on 64BIT + help + Say yes here to build support for Analog Devices ADMV1013 + 24 GHz to 44 GHz, Wideband, Microwave Upconverter. + + To compile this driver as a module, choose M here: the + module will be called admv1013. + endmenu endmenu diff --git a/drivers/iio/frequency/Makefile b/drivers/iio/frequency/Makefile index 518b1e50caef..559922a8196e 100644 --- a/drivers/iio/frequency/Makefile +++ b/drivers/iio/frequency/Makefile @@ -7,3 +7,4 @@ obj-$(CONFIG_AD9523) += ad9523.o obj-$(CONFIG_ADF4350) += adf4350.o obj-$(CONFIG_ADF4371) += adf4371.o +obj-$(CONFIG_ADMV1013) += admv1013.o diff --git a/drivers/iio/frequency/admv1013.c b/drivers/iio/frequency/admv1013.c new file mode 100644 index 000000000000..1d46f96afc23 --- /dev/null +++ b/drivers/iio/frequency/admv1013.c @@ -0,0 +1,579 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ADMV1013 driver + * + * Copyright 2021 Analog Devices Inc. + */ + +#include <linux/bitfield.h> +#include <linux/bitops.h> +#include <linux/bits.h> +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/clk-provider.h> +#include <linux/device.h> +#include <linux/iio/iio.h> +#include <linux/module.h> +#include <linux/notifier.h> +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/spi/spi.h> + +#include <asm/unaligned.h> + +/* ADMV1013 Register Map */ +#define ADMV1013_REG_SPI_CONTROL 0x00 +#define ADMV1013_REG_ALARM 0x01 +#define ADMV1013_REG_ALARM_MASKS 0x02 +#define ADMV1013_REG_ENABLE 0x03 +#define ADMV1013_REG_LO_AMP_I 0x05 +#define ADMV1013_REG_LO_AMP_Q 0x06 +#define ADMV1013_REG_OFFSET_ADJUST_I 0x07 +#define ADMV1013_REG_OFFSET_ADJUST_Q 0x08 +#define ADMV1013_REG_QUAD 0x09 +#define ADMV1013_REG_VVA_TEMP_COMP 0x0A + +/* ADMV1013_REG_SPI_CONTROL Map */ +#define ADMV1013_PARITY_EN_MSK BIT(15) +#define ADMV1013_SPI_SOFT_RESET_MSK BIT(14) +#define ADMV1013_CHIP_ID_MSK GENMASK(11, 4) +#define ADMV1013_CHIP_ID 0xA +#define ADMV1013_REVISION_ID_MSK GENMASK(3, 0) + +/* ADMV1013_REG_ALARM Map */ +#define ADMV1013_PARITY_ERROR_MSK BIT(15) +#define ADMV1013_TOO_FEW_ERRORS_MSK BIT(14) +#define ADMV1013_TOO_MANY_ERRORS_MSK BIT(13) +#define ADMV1013_ADDRESS_RANGE_ERROR_MSK BIT(12) + +/* ADMV1013_REG_ENABLE Map */ +#define ADMV1013_VGA_PD_MSK BIT(15) +#define ADMV1013_MIXER_PD_MSK BIT(14) +#define ADMV1013_QUAD_PD_MSK GENMASK(13, 11) +#define ADMV1013_BG_PD_MSK BIT(10) +#define ADMV1013_MIXER_IF_EN_MSK BIT(7) +#define ADMV1013_DET_EN_MSK BIT(5) + +/* ADMV1013_REG_LO_AMP_I Map */ +#define ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK GENMASK(13, 7) +#define ADMV1013_MIXER_VGATE_MSK GENMASK(6, 0) + +/* ADMV1013_REG_LO_AMP_Q Map */ +#define ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK GENMASK(13, 7) + +/* ADMV1013_REG_OFFSET_ADJUST_I Map */ +#define ADMV1013_MIXER_OFF_ADJ_I_P_MSK GENMASK(15, 9) +#define ADMV1013_MIXER_OFF_ADJ_I_N_MSK GENMASK(8, 2) + +/* ADMV1013_REG_OFFSET_ADJUST_Q Map */ +#define ADMV1013_MIXER_OFF_ADJ_Q_P_MSK GENMASK(15, 9) +#define ADMV1013_MIXER_OFF_ADJ_Q_N_MSK GENMASK(8, 2) + +/* ADMV1013_REG_QUAD Map */ +#define ADMV1013_QUAD_SE_MODE_MSK GENMASK(9, 6) +#define ADMV1013_QUAD_FILTERS_MSK GENMASK(3, 0) + +/* ADMV1013_REG_VVA_TEMP_COMP Map */ +#define ADMV1013_VVA_TEMP_COMP_MSK GENMASK(15, 0) + +struct admv1013_state { + struct spi_device *spi; + struct clk *clkin; + /* Protect against concurrent accesses to the device */ + struct mutex lock; + struct regulator *reg; + struct notifier_block nb; + unsigned int quad_se_mode; + bool vga_pd; + bool mixer_pd; + bool quad_pd; + bool bg_pd; + bool mixer_if_en; + bool det_en; + u8 data[3] ____cacheline_aligned; +}; + +static int __admv1013_spi_read(struct admv1013_state *st, unsigned int reg, + unsigned int *val) +{ + int ret; + struct spi_transfer t = {0}; + + st->data[0] = 0x80 | (reg << 1); + st->data[1] = 0x0; + st->data[2] = 0x0; + + t.rx_buf = &st->data[0]; + t.tx_buf = &st->data[0]; + t.len = 3; + + ret = spi_sync_transfer(st->spi, &t, 1); + if (ret) + return ret; + + *val = (get_unaligned_be24(&st->data[0]) >> 1) & GENMASK(15, 0); + + return ret; +} + +static int admv1013_spi_read(struct admv1013_state *st, unsigned int reg, + unsigned int *val) +{ + int ret; + + mutex_lock(&st->lock); + ret = __admv1013_spi_read(st, reg, val); + mutex_unlock(&st->lock); + + return ret; +} + +static int __admv1013_spi_write(struct admv1013_state *st, + unsigned int reg, + unsigned int val) +{ + put_unaligned_be24((val << 1) | (reg << 17), &st->data[0]); + + return spi_write(st->spi, &st->data[0], 3); +} + +static int admv1013_spi_write(struct admv1013_state *st, unsigned int reg, + unsigned int val) +{ + int ret; + + mutex_lock(&st->lock); + ret = __admv1013_spi_write(st, reg, val); + mutex_unlock(&st->lock); + + return ret; +} + +static int __admv1013_spi_update_bits(struct admv1013_state *st, unsigned int reg, + unsigned int mask, unsigned int val) +{ + int ret; + unsigned int data, temp; + + ret = __admv1013_spi_read(st, reg, &data); + if (ret) + return ret; + + temp = (data & ~mask) | (val & mask); + + return __admv1013_spi_write(st, reg, temp); +} + +static int admv1013_spi_update_bits(struct admv1013_state *st, unsigned int reg, + unsigned int mask, unsigned int val) +{ + int ret; + + mutex_lock(&st->lock); + ret = __admv1013_spi_update_bits(st, reg, mask, val); + mutex_unlock(&st->lock); + + return ret; +} + +static int admv1013_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long info) +{ + struct admv1013_state *st = iio_priv(indio_dev); + unsigned int data; + int ret; + + switch (info) { + case IIO_CHAN_INFO_OFFSET: + if (chan->channel2 == IIO_MOD_I) { + ret = admv1013_spi_read(st, ADMV1013_REG_OFFSET_ADJUST_I, &data); + if (ret) + return ret; + + *val = FIELD_GET(ADMV1013_MIXER_OFF_ADJ_I_P_MSK, data); + *val2 = FIELD_GET(ADMV1013_MIXER_OFF_ADJ_I_N_MSK, data); + } else { + ret = admv1013_spi_read(st, ADMV1013_REG_OFFSET_ADJUST_Q, &data); + if (ret) + return ret; + + *val = FIELD_GET(ADMV1013_MIXER_OFF_ADJ_Q_P_MSK, data); + *val2 = FIELD_GET(ADMV1013_MIXER_OFF_ADJ_Q_N_MSK, data); + } + + return IIO_VAL_INT_MULTIPLE; + case IIO_CHAN_INFO_PHASE: + if (chan->channel2 == IIO_MOD_I) { + ret = admv1013_spi_read(st, ADMV1013_REG_LO_AMP_I, &data); + if (ret) + return ret; + + *val = FIELD_GET(ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK, data); + } else { + ret = admv1013_spi_read(st, ADMV1013_REG_LO_AMP_Q, &data); + if (ret) + return ret; + + *val = FIELD_GET(ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK, data); + } + + return IIO_VAL_INT; + default: + return -EINVAL; + } +} + +static int admv1013_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long info) +{ + struct admv1013_state *st = iio_priv(indio_dev); + int ret; + + switch (info) { + case IIO_CHAN_INFO_OFFSET: + val2 /= 100000; + + if (chan->channel2 == IIO_MOD_I) + ret = admv1013_spi_update_bits(st, ADMV1013_REG_OFFSET_ADJUST_I, + ADMV1013_MIXER_OFF_ADJ_I_P_MSK | + ADMV1013_MIXER_OFF_ADJ_I_N_MSK, + FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_I_P_MSK, val) | + FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_I_N_MSK, val2)); + else + ret = admv1013_spi_update_bits(st, ADMV1013_REG_OFFSET_ADJUST_Q, + ADMV1013_MIXER_OFF_ADJ_Q_P_MSK | + ADMV1013_MIXER_OFF_ADJ_Q_N_MSK, + FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_Q_P_MSK, val) | + FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_Q_N_MSK, val2)); + + return ret; + case IIO_CHAN_INFO_PHASE: + if (chan->channel2 == IIO_MOD_I) + return admv1013_spi_update_bits(st, ADMV1013_REG_LO_AMP_I, + ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK, + FIELD_PREP(ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK, val)); + else + return admv1013_spi_update_bits(st, ADMV1013_REG_LO_AMP_Q, + ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK, + FIELD_PREP(ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK, val)); + default: + return -EINVAL; + } +} + +static int admv1013_update_quad_filters(struct admv1013_state *st) +{ + unsigned int filt_raw; + u64 rate = clk_get_rate(st->clkin); + + if (rate >= 5400000000 && rate <= 7000000000) + filt_raw = 15; + else if (rate >= 5400000000 && rate <= 8000000000) + filt_raw = 10; + else if (rate >= 6600000000 && rate <= 9200000000) + filt_raw = 5; + else + filt_raw = 0; + + return __admv1013_spi_update_bits(st, ADMV1013_REG_QUAD, + ADMV1013_QUAD_FILTERS_MSK, + FIELD_PREP(ADMV1013_QUAD_FILTERS_MSK, filt_raw)); +} + +static int admv1013_update_mixer_vgate(struct admv1013_state *st) +{ + unsigned int vcm, mixer_vgate; + + vcm = regulator_get_voltage(st->reg); + + if (vcm >= 0 && vcm < 1800000) + mixer_vgate = (2389 * vcm / 1000000 + 8100) / 100; + else if (vcm > 1800000 && vcm < 2600000) + mixer_vgate = (2375 * vcm / 1000000 + 125) / 100; + else + return -EINVAL; + + return __admv1013_spi_update_bits(st, ADMV1013_REG_LO_AMP_I, + ADMV1013_MIXER_VGATE_MSK, + FIELD_PREP(ADMV1013_MIXER_VGATE_MSK, mixer_vgate)); +} + +static int admv1013_reg_access(struct iio_dev *indio_dev, + unsigned int reg, + unsigned int write_val, + unsigned int *read_val) +{ + struct admv1013_state *st = iio_priv(indio_dev); + int ret; + + if (read_val) + ret = admv1013_spi_read(st, reg, read_val); + else + ret = admv1013_spi_write(st, reg, write_val); + + return ret; +} + +static const struct iio_info admv1013_info = { + .read_raw = admv1013_read_raw, + .write_raw = admv1013_write_raw, + .debugfs_reg_access = &admv1013_reg_access, +}; + +static int admv1013_freq_change(struct notifier_block *nb, unsigned long action, void *data) +{ + struct admv1013_state *st = container_of(nb, struct admv1013_state, nb); + int ret; + + if (action == POST_RATE_CHANGE) { + mutex_lock(&st->lock); + ret = notifier_from_errno(admv1013_update_quad_filters(st)); + mutex_unlock(&st->lock); + return ret; + } + + return NOTIFY_OK; +} + +static void admv1013_clk_notifier_unreg(void *data) +{ + struct admv1013_state *st = data; + + clk_notifier_unregister(st->clkin, &st->nb); +} + +#define ADMV1013_CHAN(_channel, rf_comp) { \ + .type = IIO_ALTVOLTAGE, \ + .modified = 1, \ + .output = 1, \ + .indexed = 1, \ + .channel2 = IIO_MOD_##rf_comp, \ + .channel = _channel, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_PHASE) | \ + BIT(IIO_CHAN_INFO_OFFSET) \ + } + +static const struct iio_chan_spec admv1013_channels[] = { + ADMV1013_CHAN(0, I), + ADMV1013_CHAN(0, Q), +}; + +static int admv1013_init(struct admv1013_state *st) +{ + int ret; + unsigned int chip_id, enable_reg, enable_reg_msk; + struct spi_device *spi = st->spi; + + /* Perform a software reset */ + ret = __admv1013_spi_update_bits(st, ADMV1013_REG_SPI_CONTROL, + ADMV1013_SPI_SOFT_RESET_MSK, + FIELD_PREP(ADMV1013_SPI_SOFT_RESET_MSK, 1)); + if (ret) + return ret; + + ret = __admv1013_spi_update_bits(st, ADMV1013_REG_SPI_CONTROL, + ADMV1013_SPI_SOFT_RESET_MSK, + FIELD_PREP(ADMV1013_SPI_SOFT_RESET_MSK, 0)); + if (ret) + return ret; + + ret = __admv1013_spi_read(st, ADMV1013_REG_SPI_CONTROL, &chip_id); + if (ret) + return ret; + + chip_id = FIELD_GET(ADMV1013_CHIP_ID_MSK, chip_id); + if (chip_id != ADMV1013_CHIP_ID) { + dev_err(&spi->dev, "Invalid Chip ID.\n"); + return -EINVAL; + } + + ret = __admv1013_spi_write(st, ADMV1013_REG_VVA_TEMP_COMP, 0xE700); + if (ret) + return ret; + + ret = __admv1013_spi_update_bits(st, ADMV1013_REG_QUAD, + ADMV1013_QUAD_SE_MODE_MSK, + FIELD_PREP(ADMV1013_QUAD_SE_MODE_MSK, st->quad_se_mode)); + if (ret) + return ret; + + ret = admv1013_update_mixer_vgate(st); + if (ret) + return ret; + + ret = admv1013_update_quad_filters(st); + if (ret) + return ret; + + enable_reg_msk = ADMV1013_VGA_PD_MSK | + ADMV1013_MIXER_PD_MSK | + ADMV1013_QUAD_PD_MSK | + ADMV1013_BG_PD_MSK | + ADMV1013_MIXER_IF_EN_MSK | + ADMV1013_DET_EN_MSK; + + enable_reg = FIELD_PREP(ADMV1013_VGA_PD_MSK, st->vga_pd) | + FIELD_PREP(ADMV1013_MIXER_PD_MSK, st->mixer_pd) | + FIELD_PREP(ADMV1013_QUAD_PD_MSK, st->quad_pd ? 7 : 0) | + FIELD_PREP(ADMV1013_BG_PD_MSK, st->bg_pd) | + FIELD_PREP(ADMV1013_MIXER_IF_EN_MSK, st->mixer_if_en) | + FIELD_PREP(ADMV1013_DET_EN_MSK, st->det_en); + + return __admv1013_spi_update_bits(st, ADMV1013_REG_ENABLE, enable_reg_msk, enable_reg); +} + +static void admv1013_clk_disable(void *data) +{ + clk_disable_unprepare(data); +} + +static void admv1013_reg_disable(void *data) +{ + regulator_disable(data); +} + +static void admv1013_powerdown(void *data) +{ + unsigned int enable_reg, enable_reg_msk; + + /* Disable all components in the Enable Register */ + enable_reg_msk = ADMV1013_VGA_PD_MSK | + ADMV1013_MIXER_PD_MSK | + ADMV1013_QUAD_PD_MSK | + ADMV1013_BG_PD_MSK | + ADMV1013_MIXER_IF_EN_MSK | + ADMV1013_DET_EN_MSK; + + enable_reg = FIELD_PREP(ADMV1013_VGA_PD_MSK, 1) | + FIELD_PREP(ADMV1013_MIXER_PD_MSK, 1) | + FIELD_PREP(ADMV1013_QUAD_PD_MSK, 7) | + FIELD_PREP(ADMV1013_BG_PD_MSK, 1) | + FIELD_PREP(ADMV1013_MIXER_IF_EN_MSK, 0) | + FIELD_PREP(ADMV1013_DET_EN_MSK, 0); + + admv1013_spi_update_bits(data, ADMV1013_REG_ENABLE, enable_reg_msk, enable_reg); +} + +static int admv1013_properties_parse(struct admv1013_state *st) +{ + int ret; + struct spi_device *spi = st->spi; + + st->vga_pd = device_property_read_bool(&spi->dev, "adi,vga-pd"); + st->mixer_pd = device_property_read_bool(&spi->dev, "adi,mixer-pd"); + st->quad_pd = device_property_read_bool(&spi->dev, "adi,quad-pd"); + st->bg_pd = device_property_read_bool(&spi->dev, "adi,bg-pd"); + st->mixer_if_en = device_property_read_bool(&spi->dev, "adi,mixer-if-en"); + st->det_en = device_property_read_bool(&spi->dev, "adi,det-en"); + + ret = device_property_read_u32(&spi->dev, "adi,quad-se-mode", &st->quad_se_mode); + if (ret) + st->quad_se_mode = 12; + + st->reg = devm_regulator_get(&spi->dev, "vcm"); + if (IS_ERR(st->reg)) + return dev_err_probe(&spi->dev, PTR_ERR(st->reg), + "failed to get the common-mode voltage\n"); + + st->clkin = devm_clk_get(&spi->dev, "lo_in"); + if (IS_ERR(st->clkin)) + return dev_err_probe(&spi->dev, PTR_ERR(st->clkin), + "failed to get the LO input clock\n"); + + return 0; +} + +static int admv1013_probe(struct spi_device *spi) +{ + struct iio_dev *indio_dev; + struct admv1013_state *st; + int ret; + + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; + + st = iio_priv(indio_dev); + + indio_dev->dev.parent = &spi->dev; + indio_dev->info = &admv1013_info; + indio_dev->name = "admv1013"; + indio_dev->channels = admv1013_channels; + indio_dev->num_channels = ARRAY_SIZE(admv1013_channels); + + st->spi = spi; + + ret = admv1013_properties_parse(st); + if (ret) + return ret; + + ret = regulator_enable(st->reg); + if (ret) { + dev_err(&spi->dev, "Failed to enable specified Common-Mode Voltage!\n"); + return ret; + } + + ret = devm_add_action_or_reset(&spi->dev, admv1013_reg_disable, + st->reg); + if (ret) + return ret; + + ret = clk_prepare_enable(st->clkin); + if (ret) + return ret; + + ret = devm_add_action_or_reset(&spi->dev, admv1013_clk_disable, st->clkin); + if (ret) + return ret; + + st->nb.notifier_call = admv1013_freq_change; + ret = clk_notifier_register(st->clkin, &st->nb); + if (ret) + return ret; + + ret = devm_add_action_or_reset(&spi->dev, admv1013_clk_notifier_unreg, st); + if (ret) + return ret; + + mutex_init(&st->lock); + + ret = admv1013_init(st); + if (ret) { + dev_err(&spi->dev, "admv1013 init failed\n"); + return ret; + } + + ret = devm_add_action_or_reset(&spi->dev, admv1013_powerdown, st); + if (ret) + return ret; + + return devm_iio_device_register(&spi->dev, indio_dev); +} + +static const struct spi_device_id admv1013_id[] = { + { "admv1013", 0}, + {} +}; +MODULE_DEVICE_TABLE(spi, admv1013_id); + +static const struct of_device_id admv1013_of_match[] = { + { .compatible = "adi,admv1013" }, + {}, +}; +MODULE_DEVICE_TABLE(of, admv1013_of_match); + +static struct spi_driver admv1013_driver = { + .driver = { + .name = "admv1013", + .of_match_table = admv1013_of_match, + }, + .probe = admv1013_probe, + .id_table = admv1013_id, +}; +module_spi_driver(admv1013_driver); + +MODULE_AUTHOR("Antoniu Miclaus <antoniu.miclaus@analog.com"); +MODULE_DESCRIPTION("Analog Devices ADMV1013"); +MODULE_LICENSE("GPL v2"); -- 2.33.1 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* RE: [PATCH 1/2] iio: frequency: admv1013: add support for ADMV1013 2021-10-26 15:27 ` [PATCH 1/2] iio: frequency: admv1013: add support for ADMV1013 Antoniu Miclaus @ 2021-10-27 7:31 ` Sa, Nuno 0 siblings, 0 replies; 4+ messages in thread From: Sa, Nuno @ 2021-10-27 7:31 UTC (permalink / raw) To: Miclaus, Antoniu, jic23, robh+dt, linux-iio, devicetree, linux-kernel Cc: Miclaus, Antoniu > -----Original Message----- > From: Antoniu Miclaus <antoniu.miclaus@analog.com> > Sent: Tuesday, October 26, 2021 5:28 PM > To: jic23@kernel.org; robh+dt@kernel.org; linux-iio@vger.kernel.org; > devicetree@vger.kernel.org; linux-kernel@vger.kernel.org > Cc: Miclaus, Antoniu <Antoniu.Miclaus@analog.com> > Subject: [PATCH 1/2] iio: frequency: admv1013: add support for > ADMV1013 > > [External] > > The ADMV1013 is a wideband, microwave upconverter optimized > for point to point microwave radio designs operating in the > 24 GHz to 44 GHz radio frequency (RF) range. > > Datasheet: > https://www.analog.com/media/en/technical-documentation/data- > sheets/ADMV1013.pdf > > Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> > --- > drivers/iio/frequency/Kconfig | 13 + > drivers/iio/frequency/Makefile | 1 + > drivers/iio/frequency/admv1013.c | 579 > +++++++++++++++++++++++++++++++ > 3 files changed, 593 insertions(+) > create mode 100644 drivers/iio/frequency/admv1013.c > > diff --git a/drivers/iio/frequency/Kconfig > b/drivers/iio/frequency/Kconfig > index 240b81502512..11792a5e7b83 100644 > --- a/drivers/iio/frequency/Kconfig > +++ b/drivers/iio/frequency/Kconfig > @@ -49,5 +49,18 @@ config ADF4371 > > To compile this driver as a module, choose M here: the > module will be called adf4371. > + > +config ADMV1013 > + tristate "Analog Devices ADMV1013 Microwave Upconverter" > + depends on SPI > + depends on COMMON_CLK > + depends on 64BIT This can be 'depends on SPI && COMMON_CLK && 64BIT' > + help > + Say yes here to build support for Analog Devices ADMV1013 > + 24 GHz to 44 GHz, Wideband, Microwave Upconverter. > + > + To compile this driver as a module, choose M here: the > + module will be called admv1013. > + > endmenu > endmenu > diff --git a/drivers/iio/frequency/Makefile > b/drivers/iio/frequency/Makefile > index 518b1e50caef..559922a8196e 100644 > --- a/drivers/iio/frequency/Makefile > +++ b/drivers/iio/frequency/Makefile > @@ -7,3 +7,4 @@ > obj-$(CONFIG_AD9523) += ad9523.o > obj-$(CONFIG_ADF4350) += adf4350.o > obj-$(CONFIG_ADF4371) += adf4371.o > +obj-$(CONFIG_ADMV1013) += admv1013.o > diff --git a/drivers/iio/frequency/admv1013.c > b/drivers/iio/frequency/admv1013.c > new file mode 100644 > index 000000000000..1d46f96afc23 > --- /dev/null > +++ b/drivers/iio/frequency/admv1013.c > @@ -0,0 +1,579 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/* > + * ADMV1013 driver > + * > + * Copyright 2021 Analog Devices Inc. > + */ > + > +#include <linux/bitfield.h> > +#include <linux/bitops.h> > +#include <linux/bits.h> > +#include <linux/clk.h> > +#include <linux/clkdev.h> > +#include <linux/clk-provider.h> > +#include <linux/device.h> > +#include <linux/iio/iio.h> > +#include <linux/module.h> > +#include <linux/notifier.h> > +#include <linux/regmap.h> > +#include <linux/regulator/consumer.h> > +#include <linux/spi/spi.h> > + > +#include <asm/unaligned.h> > + > +/* ADMV1013 Register Map */ > +#define ADMV1013_REG_SPI_CONTROL 0x00 > +#define ADMV1013_REG_ALARM 0x01 > +#define ADMV1013_REG_ALARM_MASKS 0x02 > +#define ADMV1013_REG_ENABLE 0x03 > +#define ADMV1013_REG_LO_AMP_I 0x05 > +#define ADMV1013_REG_LO_AMP_Q 0x06 > +#define ADMV1013_REG_OFFSET_ADJUST_I 0x07 > +#define ADMV1013_REG_OFFSET_ADJUST_Q 0x08 > +#define ADMV1013_REG_QUAD 0x09 > +#define ADMV1013_REG_VVA_TEMP_COMP 0x0A > + > +/* ADMV1013_REG_SPI_CONTROL Map */ > +#define ADMV1013_PARITY_EN_MSK BIT(15) > +#define ADMV1013_SPI_SOFT_RESET_MSK BIT(14) > +#define ADMV1013_CHIP_ID_MSK GENMASK(11, 4) > +#define ADMV1013_CHIP_ID 0xA > +#define ADMV1013_REVISION_ID_MSK GENMASK(3, 0) > + > +/* ADMV1013_REG_ALARM Map */ > +#define ADMV1013_PARITY_ERROR_MSK BIT(15) > +#define ADMV1013_TOO_FEW_ERRORS_MSK BIT(14) > +#define ADMV1013_TOO_MANY_ERRORS_MSK BIT(13) > +#define ADMV1013_ADDRESS_RANGE_ERROR_MSK BIT(12) > + > +/* ADMV1013_REG_ENABLE Map */ > +#define ADMV1013_VGA_PD_MSK BIT(15) > +#define ADMV1013_MIXER_PD_MSK BIT(14) > +#define ADMV1013_QUAD_PD_MSK > GENMASK(13, 11) > +#define ADMV1013_BG_PD_MSK BIT(10) > +#define ADMV1013_MIXER_IF_EN_MSK BIT(7) > +#define ADMV1013_DET_EN_MSK BIT(5) > + > +/* ADMV1013_REG_LO_AMP_I Map */ > +#define ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK GENMASK(13, 7) > +#define ADMV1013_MIXER_VGATE_MSK GENMASK(6, 0) > + > +/* ADMV1013_REG_LO_AMP_Q Map */ > +#define ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK GENMASK(13, 7) > + > +/* ADMV1013_REG_OFFSET_ADJUST_I Map */ > +#define ADMV1013_MIXER_OFF_ADJ_I_P_MSK > GENMASK(15, 9) > +#define ADMV1013_MIXER_OFF_ADJ_I_N_MSK > GENMASK(8, 2) > + > +/* ADMV1013_REG_OFFSET_ADJUST_Q Map */ > +#define ADMV1013_MIXER_OFF_ADJ_Q_P_MSK > GENMASK(15, 9) > +#define ADMV1013_MIXER_OFF_ADJ_Q_N_MSK > GENMASK(8, 2) > + > +/* ADMV1013_REG_QUAD Map */ > +#define ADMV1013_QUAD_SE_MODE_MSK GENMASK(9, 6) > +#define ADMV1013_QUAD_FILTERS_MSK GENMASK(3, 0) > + > +/* ADMV1013_REG_VVA_TEMP_COMP Map */ > +#define ADMV1013_VVA_TEMP_COMP_MSK > GENMASK(15, 0) > + > +struct admv1013_state { > + struct spi_device *spi; > + struct clk *clkin; > + /* Protect against concurrent accesses to the device */ > + struct mutex lock; > + struct regulator *reg; > + struct notifier_block nb; > + unsigned int quad_se_mode; > + bool vga_pd; > + bool mixer_pd; > + bool quad_pd; > + bool bg_pd; > + bool mixer_if_en; > + bool det_en; > + u8 data[3] ____cacheline_aligned; > +}; > + > +static int __admv1013_spi_read(struct admv1013_state *st, unsigned > int reg, > + unsigned int *val) > +{ > + int ret; > + struct spi_transfer t = {0}; > + > + st->data[0] = 0x80 | (reg << 1); > + st->data[1] = 0x0; > + st->data[2] = 0x0; > + > + t.rx_buf = &st->data[0]; > + t.tx_buf = &st->data[0]; > + t.len = 3; > + > + ret = spi_sync_transfer(st->spi, &t, 1); > + if (ret) > + return ret; > + > + *val = (get_unaligned_be24(&st->data[0]) >> 1) & > GENMASK(15, 0); > + > + return ret; > +} > + > +static int admv1013_spi_read(struct admv1013_state *st, unsigned > int reg, > + unsigned int *val) > +{ > + int ret; > + > + mutex_lock(&st->lock); > + ret = __admv1013_spi_read(st, reg, val); > + mutex_unlock(&st->lock); > + > + return ret; > +} > + > +static int __admv1013_spi_write(struct admv1013_state *st, > + unsigned int reg, > + unsigned int val) > +{ > + put_unaligned_be24((val << 1) | (reg << 17), &st->data[0]); > + > + return spi_write(st->spi, &st->data[0], 3); > +} > + > +static int admv1013_spi_write(struct admv1013_state *st, unsigned > int reg, > + unsigned int val) > +{ > + int ret; > + > + mutex_lock(&st->lock); > + ret = __admv1013_spi_write(st, reg, val); > + mutex_unlock(&st->lock); > + > + return ret; > +} > + > +static int __admv1013_spi_update_bits(struct admv1013_state *st, > unsigned int reg, > + unsigned int mask, unsigned int val) > +{ > + int ret; > + unsigned int data, temp; > + > + ret = __admv1013_spi_read(st, reg, &data); > + if (ret) > + return ret; > + > + temp = (data & ~mask) | (val & mask); > + > + return __admv1013_spi_write(st, reg, temp); > +} > + > +static int admv1013_spi_update_bits(struct admv1013_state *st, > unsigned int reg, > + unsigned int mask, unsigned int val) > +{ > + int ret; > + > + mutex_lock(&st->lock); > + ret = __admv1013_spi_update_bits(st, reg, mask, val); > + mutex_unlock(&st->lock); > + > + return ret; > +} > + > +static int admv1013_read_raw(struct iio_dev *indio_dev, > + struct iio_chan_spec const *chan, > + int *val, int *val2, long info) > +{ > + struct admv1013_state *st = iio_priv(indio_dev); > + unsigned int data; > + int ret; > + > + switch (info) { > + case IIO_CHAN_INFO_OFFSET: > + if (chan->channel2 == IIO_MOD_I) { > + ret = admv1013_spi_read(st, > ADMV1013_REG_OFFSET_ADJUST_I, &data); > + if (ret) > + return ret; > + > + *val = > FIELD_GET(ADMV1013_MIXER_OFF_ADJ_I_P_MSK, data); > + *val2 = > FIELD_GET(ADMV1013_MIXER_OFF_ADJ_I_N_MSK, data); > + } else { > + ret = admv1013_spi_read(st, > ADMV1013_REG_OFFSET_ADJUST_Q, &data); > + if (ret) > + return ret; > + > + *val = > FIELD_GET(ADMV1013_MIXER_OFF_ADJ_Q_P_MSK, data); > + *val2 = > FIELD_GET(ADMV1013_MIXER_OFF_ADJ_Q_N_MSK, data); > + } > + > + return IIO_VAL_INT_MULTIPLE; > + case IIO_CHAN_INFO_PHASE: > + if (chan->channel2 == IIO_MOD_I) { > + ret = admv1013_spi_read(st, > ADMV1013_REG_LO_AMP_I, &data); > + if (ret) > + return ret; > + > + *val = > FIELD_GET(ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK, data); > + } else { > + ret = admv1013_spi_read(st, > ADMV1013_REG_LO_AMP_Q, &data); > + if (ret) > + return ret; > + > + *val = > FIELD_GET(ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK, data); > + } > + > + return IIO_VAL_INT; > + default: > + return -EINVAL; > + } > +} > + > +static int admv1013_write_raw(struct iio_dev *indio_dev, > + struct iio_chan_spec const *chan, > + int val, int val2, long info) > +{ > + struct admv1013_state *st = iio_priv(indio_dev); > + int ret; > + > + switch (info) { > + case IIO_CHAN_INFO_OFFSET: > + val2 /= 100000; > + > + if (chan->channel2 == IIO_MOD_I) > + ret = admv1013_spi_update_bits(st, > ADMV1013_REG_OFFSET_ADJUST_I, > + > ADMV1013_MIXER_OFF_ADJ_I_P_MSK | > + > ADMV1013_MIXER_OFF_ADJ_I_N_MSK, > + > FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_I_P_MSK, val) | > + > FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_I_N_MSK, val2)); > + else > + ret = admv1013_spi_update_bits(st, > ADMV1013_REG_OFFSET_ADJUST_Q, > + > ADMV1013_MIXER_OFF_ADJ_Q_P_MSK | > + > ADMV1013_MIXER_OFF_ADJ_Q_N_MSK, > + > FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_Q_P_MSK, val) | > + > FIELD_PREP(ADMV1013_MIXER_OFF_ADJ_Q_N_MSK, val2)); > + > + return ret; > + case IIO_CHAN_INFO_PHASE: > + if (chan->channel2 == IIO_MOD_I) > + return admv1013_spi_update_bits(st, > ADMV1013_REG_LO_AMP_I, > + > ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK, > + > FIELD_PREP(ADMV1013_LOAMP_PH_ADJ_I_FINE_MSK, val)); > + else > + return admv1013_spi_update_bits(st, > ADMV1013_REG_LO_AMP_Q, > + > ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK, > + > FIELD_PREP(ADMV1013_LOAMP_PH_ADJ_Q_FINE_MSK, val)); > + default: > + return -EINVAL; > + } > +} > + > +static int admv1013_update_quad_filters(struct admv1013_state *st) > +{ > + unsigned int filt_raw; > + u64 rate = clk_get_rate(st->clkin); > + > + if (rate >= 5400000000 && rate <= 7000000000) > + filt_raw = 15; > + else if (rate >= 5400000000 && rate <= 8000000000) > + filt_raw = 10; > + else if (rate >= 6600000000 && rate <= 9200000000) > + filt_raw = 5; > + else > + filt_raw = 0; > + > + return __admv1013_spi_update_bits(st, > ADMV1013_REG_QUAD, > + > ADMV1013_QUAD_FILTERS_MSK, > + > FIELD_PREP(ADMV1013_QUAD_FILTERS_MSK, filt_raw)); > +} > + > +static int admv1013_update_mixer_vgate(struct admv1013_state *st) > +{ > + unsigned int vcm, mixer_vgate; > + > + vcm = regulator_get_voltage(st->reg); > + > + if (vcm >= 0 && vcm < 1800000) > + mixer_vgate = (2389 * vcm / 1000000 + 8100) / 100; > + else if (vcm > 1800000 && vcm < 2600000) > + mixer_vgate = (2375 * vcm / 1000000 + 125) / 100; > + else > + return -EINVAL; > + > + return __admv1013_spi_update_bits(st, > ADMV1013_REG_LO_AMP_I, > + ADMV1013_MIXER_VGATE_MSK, > + > FIELD_PREP(ADMV1013_MIXER_VGATE_MSK, mixer_vgate)); > +} > + > +static int admv1013_reg_access(struct iio_dev *indio_dev, > + unsigned int reg, > + unsigned int write_val, > + unsigned int *read_val) > +{ > + struct admv1013_state *st = iio_priv(indio_dev); > + int ret; > + > + if (read_val) > + ret = admv1013_spi_read(st, reg, read_val); > + else > + ret = admv1013_spi_write(st, reg, write_val); > + > + return ret; > +} > + > +static const struct iio_info admv1013_info = { > + .read_raw = admv1013_read_raw, > + .write_raw = admv1013_write_raw, > + .debugfs_reg_access = &admv1013_reg_access, > +}; > + > +static int admv1013_freq_change(struct notifier_block *nb, unsigned > long action, void *data) > +{ > + struct admv1013_state *st = container_of(nb, struct > admv1013_state, nb); > + int ret; > + > + if (action == POST_RATE_CHANGE) { > + mutex_lock(&st->lock); > + ret = > notifier_from_errno(admv1013_update_quad_filters(st)); > + mutex_unlock(&st->lock); > + return ret; > + } > + > + return NOTIFY_OK; > +} > + > +static void admv1013_clk_notifier_unreg(void *data) > +{ > + struct admv1013_state *st = data; > + > + clk_notifier_unregister(st->clkin, &st->nb); > +} > + > +#define ADMV1013_CHAN(_channel, rf_comp) { \ > + .type = IIO_ALTVOLTAGE, \ > + .modified = 1, \ > + .output = 1, \ > + .indexed = 1, \ > + .channel2 = IIO_MOD_##rf_comp, \ > + .channel = _channel, \ > + .info_mask_separate = BIT(IIO_CHAN_INFO_PHASE) | \ > + BIT(IIO_CHAN_INFO_OFFSET) \ > + } > + > +static const struct iio_chan_spec admv1013_channels[] = { > + ADMV1013_CHAN(0, I), > + ADMV1013_CHAN(0, Q), > +}; > + > +static int admv1013_init(struct admv1013_state *st) > +{ > + int ret; > + unsigned int chip_id, enable_reg, enable_reg_msk; > + struct spi_device *spi = st->spi; > + > + /* Perform a software reset */ > + ret = __admv1013_spi_update_bits(st, > ADMV1013_REG_SPI_CONTROL, > + > ADMV1013_SPI_SOFT_RESET_MSK, > + > FIELD_PREP(ADMV1013_SPI_SOFT_RESET_MSK, 1)); > + if (ret) > + return ret; > + > + ret = __admv1013_spi_update_bits(st, > ADMV1013_REG_SPI_CONTROL, > + > ADMV1013_SPI_SOFT_RESET_MSK, > + > FIELD_PREP(ADMV1013_SPI_SOFT_RESET_MSK, 0)); > + if (ret) > + return ret; > + > + ret = __admv1013_spi_read(st, > ADMV1013_REG_SPI_CONTROL, &chip_id); > + if (ret) > + return ret; > + > + chip_id = FIELD_GET(ADMV1013_CHIP_ID_MSK, chip_id); > + if (chip_id != ADMV1013_CHIP_ID) { > + dev_err(&spi->dev, "Invalid Chip ID.\n"); > + return -EINVAL; > + } > + > + ret = __admv1013_spi_write(st, > ADMV1013_REG_VVA_TEMP_COMP, 0xE700); > + if (ret) > + return ret; > + > + ret = __admv1013_spi_update_bits(st, > ADMV1013_REG_QUAD, > + > ADMV1013_QUAD_SE_MODE_MSK, > + > FIELD_PREP(ADMV1013_QUAD_SE_MODE_MSK, st- > >quad_se_mode)); > + if (ret) > + return ret; > + > + ret = admv1013_update_mixer_vgate(st); > + if (ret) > + return ret; > + > + ret = admv1013_update_quad_filters(st); > + if (ret) > + return ret; > + > + enable_reg_msk = ADMV1013_VGA_PD_MSK | > + ADMV1013_MIXER_PD_MSK | > + ADMV1013_QUAD_PD_MSK | > + ADMV1013_BG_PD_MSK | > + ADMV1013_MIXER_IF_EN_MSK | > + ADMV1013_DET_EN_MSK; > + > + enable_reg = FIELD_PREP(ADMV1013_VGA_PD_MSK, st- > >vga_pd) | > + FIELD_PREP(ADMV1013_MIXER_PD_MSK, st- > >mixer_pd) | > + FIELD_PREP(ADMV1013_QUAD_PD_MSK, st- > >quad_pd ? 7 : 0) | > + FIELD_PREP(ADMV1013_BG_PD_MSK, st- > >bg_pd) | > + FIELD_PREP(ADMV1013_MIXER_IF_EN_MSK, > st->mixer_if_en) | > + FIELD_PREP(ADMV1013_DET_EN_MSK, st- > >det_en); > + > + return __admv1013_spi_update_bits(st, > ADMV1013_REG_ENABLE, enable_reg_msk, enable_reg); > +} > + > +static void admv1013_clk_disable(void *data) > +{ > + clk_disable_unprepare(data); > +} > + > +static void admv1013_reg_disable(void *data) > +{ > + regulator_disable(data); > +} > + > +static void admv1013_powerdown(void *data) > +{ > + unsigned int enable_reg, enable_reg_msk; > + > + /* Disable all components in the Enable Register */ > + enable_reg_msk = ADMV1013_VGA_PD_MSK | > + ADMV1013_MIXER_PD_MSK | > + ADMV1013_QUAD_PD_MSK | > + ADMV1013_BG_PD_MSK | > + ADMV1013_MIXER_IF_EN_MSK | > + ADMV1013_DET_EN_MSK; > + > + enable_reg = FIELD_PREP(ADMV1013_VGA_PD_MSK, 1) | > + FIELD_PREP(ADMV1013_MIXER_PD_MSK, 1) | > + FIELD_PREP(ADMV1013_QUAD_PD_MSK, 7) | > + FIELD_PREP(ADMV1013_BG_PD_MSK, 1) | > + FIELD_PREP(ADMV1013_MIXER_IF_EN_MSK, > 0) | > + FIELD_PREP(ADMV1013_DET_EN_MSK, 0); > + > + admv1013_spi_update_bits(data, ADMV1013_REG_ENABLE, > enable_reg_msk, enable_reg); > +} > + > +static int admv1013_properties_parse(struct admv1013_state *st) > +{ > + int ret; > + struct spi_device *spi = st->spi; > + > + st->vga_pd = device_property_read_bool(&spi->dev, "adi,vga- > pd"); > + st->mixer_pd = device_property_read_bool(&spi->dev, > "adi,mixer-pd"); > + st->quad_pd = device_property_read_bool(&spi->dev, > "adi,quad-pd"); > + st->bg_pd = device_property_read_bool(&spi->dev, "adi,bg- > pd"); > + st->mixer_if_en = device_property_read_bool(&spi->dev, > "adi,mixer-if-en"); > + st->det_en = device_property_read_bool(&spi->dev, "adi,det- > en"); > + > + ret = device_property_read_u32(&spi->dev, "adi,quad-se- > mode", &st->quad_se_mode); > + if (ret) > + st->quad_se_mode = 12; > + > + st->reg = devm_regulator_get(&spi->dev, "vcm"); > + if (IS_ERR(st->reg)) > + return dev_err_probe(&spi->dev, PTR_ERR(st->reg), > + "failed to get the common-mode > voltage\n"); > + > + st->clkin = devm_clk_get(&spi->dev, "lo_in"); > + if (IS_ERR(st->clkin)) > + return dev_err_probe(&spi->dev, PTR_ERR(st->clkin), > + "failed to get the LO input clock\n"); > + > + return 0; > +} > + > +static int admv1013_probe(struct spi_device *spi) > +{ > + struct iio_dev *indio_dev; > + struct admv1013_state *st; > + int ret; > + > + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); > + if (!indio_dev) > + return -ENOMEM; > + > + st = iio_priv(indio_dev); > + > + indio_dev->dev.parent = &spi->dev; not needed anymore... > + indio_dev->info = &admv1013_info; > + indio_dev->name = "admv1013"; > + indio_dev->channels = admv1013_channels; > + indio_dev->num_channels = > ARRAY_SIZE(admv1013_channels); > + > + st->spi = spi; > + > + ret = admv1013_properties_parse(st); > + if (ret) > + return ret; > + > + ret = regulator_enable(st->reg); > + if (ret) { > + dev_err(&spi->dev, "Failed to enable specified > Common-Mode Voltage!\n"); > + return ret; > + } > + > + ret = devm_add_action_or_reset(&spi->dev, > admv1013_reg_disable, > + st->reg); > + if (ret) > + return ret; > + > + ret = clk_prepare_enable(st->clkin); > + if (ret) > + return ret; > + > + ret = devm_add_action_or_reset(&spi->dev, > admv1013_clk_disable, st->clkin); > + if (ret) > + return ret; > + > + st->nb.notifier_call = admv1013_freq_change; > + ret = clk_notifier_register(st->clkin, &st->nb); > + if (ret) > + return ret; > + > + ret = devm_add_action_or_reset(&spi->dev, > admv1013_clk_notifier_unreg, st); > + if (ret) > + return ret; > + > + mutex_init(&st->lock); > + > + ret = admv1013_init(st); > + if (ret) { > + dev_err(&spi->dev, "admv1013 init failed\n"); > + return ret; > + } > + > + ret = devm_add_action_or_reset(&spi->dev, > admv1013_powerdown, st); > + if (ret) > + return ret; > + > + return devm_iio_device_register(&spi->dev, indio_dev); > +} > + > +static const struct spi_device_id admv1013_id[] = { > + { "admv1013", 0}, > + {} > +}; > +MODULE_DEVICE_TABLE(spi, admv1013_id); > + > +static const struct of_device_id admv1013_of_match[] = { > + { .compatible = "adi,admv1013" }, > + {}, > +}; > +MODULE_DEVICE_TABLE(of, admv1013_of_match); > + > +static struct spi_driver admv1013_driver = { > + .driver = { > + .name = "admv1013", > + .of_match_table = admv1013_of_match, > + }, > + .probe = admv1013_probe, > + .id_table = admv1013_id, > +}; > +module_spi_driver(admv1013_driver); > + > +MODULE_AUTHOR("Antoniu Miclaus > <antoniu.miclaus@analog.com"); > +MODULE_DESCRIPTION("Analog Devices ADMV1013"); > +MODULE_LICENSE("GPL v2"); > -- > 2.33.1 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 2/2] dt-bindings: iio: frequency: add admv1013 doc 2021-10-26 15:27 [PATCH 0/2] Antoniu Miclaus 2021-10-26 15:27 ` [PATCH 1/2] iio: frequency: admv1013: add support for ADMV1013 Antoniu Miclaus @ 2021-10-26 15:27 ` Antoniu Miclaus 1 sibling, 0 replies; 4+ messages in thread From: Antoniu Miclaus @ 2021-10-26 15:27 UTC (permalink / raw) To: jic23, robh+dt, linux-iio, devicetree, linux-kernel; +Cc: Antoniu Miclaus Add device tree bindings for the ADMV1013 Upconverter. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> --- .../bindings/iio/frequency/adi,admv1013.yaml | 110 ++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/frequency/adi,admv1013.yaml diff --git a/Documentation/devicetree/bindings/iio/frequency/adi,admv1013.yaml b/Documentation/devicetree/bindings/iio/frequency/adi,admv1013.yaml new file mode 100644 index 000000000000..7c22202e1ffd --- /dev/null +++ b/Documentation/devicetree/bindings/iio/frequency/adi,admv1013.yaml @@ -0,0 +1,110 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/frequency/adi,admv1013.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ADMV1013 Microwave Upconverter + +maintainers: + - Antoniu Miclaus <antoniu.miclaus@analog.com> + +description: | + Wideband, microwave upconverter optimized for point to point microwave + radio designs operating in the 24 GHz to 44 GHz frequency range. + + https://www.analog.com/en/products/admv1013.html + +properties: + compatible: + enum: + - adi,admv1013 + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 1000000 + + clocks: + description: + Definition of the external clock. + minItems: 1 + + clock-names: + items: + - const: lo_in + + clock-output-names: + maxItems: 1 + + vcm-supply: + description: + Analog voltage regulator. + + adi,vga-pd: + description: + Power Down the Voltage Gain Amplifier Circuit. + type: boolean + + adi,mixer-pd: + description: + Power Down the Mixer Circuit. + type: boolean + + adi,quad-pd: + description: + Power Down the Quadrupler. + type: boolean + + adi,bg-pd: + description: + Power Down the Transmitter Band Gap. + type: boolean + + adi,mixer-if-en: + description: + Enable the Intermediate Frequency Mode. + type: boolean + + adi,det-en: + description: + Enable the Envelope Detector. + type: boolean + + adi,quad-se-mode: + description: + Switch the LO path from differential to single-ended operation. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [6, 9, 12] + + '#clock-cells': + const: 0 + +required: + - compatible + - reg + - clocks + - clock-names + - vcm-supply + +additionalProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + admv1013@0{ + compatible = "adi,admv1013"; + reg = <0>; + spi-max-frequency = <1000000>; + clocks = <&admv1013_lo>; + clock-names = "lo_in"; + vcm-supply = <&vcm>; + adi,quad-se-mode = <12>; + adi,mixer-if-en; + adi,det-en; + }; + }; +... -- 2.33.1 ^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-10-27 7:31 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-10-26 15:27 [PATCH 0/2] Antoniu Miclaus 2021-10-26 15:27 ` [PATCH 1/2] iio: frequency: admv1013: add support for ADMV1013 Antoniu Miclaus 2021-10-27 7:31 ` Sa, Nuno 2021-10-26 15:27 ` [PATCH 2/2] dt-bindings: iio: frequency: add admv1013 doc Antoniu Miclaus
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