On Tue, 15 Feb 2022 10:12:13 +0200 Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx> wrote: > The ADMV1014 is a silicon germanium (SiGe), wideband, > microwave downconverter optimized for point to point microwave > radio designs operating in the 24 GHz to 44 GHz frequency range. > > Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADMV1014.pdf > Signed-off-by: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx> Hi Antoniu. One really trivial point inline that I noticed whilst having 'one last look'. I'll fix it up whilst applying but please check I didn't mess up! Series applied to the togreg branch of iio.git and initially pushed out as testing to let 0-day poke at it an see if it can find anything we missed. Thanks, Jonathan > --- > changes in v8: > - remove clk-provider header > drivers/iio/frequency/Kconfig | 10 + > drivers/iio/frequency/Makefile | 1 + > drivers/iio/frequency/admv1014.c | 823 +++++++++++++++++++++++++++++++ > 3 files changed, 834 insertions(+) > create mode 100644 drivers/iio/frequency/admv1014.c > > diff --git a/drivers/iio/frequency/Kconfig b/drivers/iio/frequency/Kconfig > index 2c9e0559e8a4..493221f42077 100644 > --- a/drivers/iio/frequency/Kconfig > +++ b/drivers/iio/frequency/Kconfig > @@ -50,6 +50,16 @@ config ADF4371 > To compile this driver as a module, choose M here: the > module will be called adf4371. > > +config ADMV1014 > + tristate "Analog Devices ADMV1014 Microwave Downconverter" > + depends on SPI && COMMON_CLK && 64BIT > + help > + Say yes here to build support for Analog Devices ADMV1014 > + 24 GHz to 44 GHz, Wideband, Microwave Downconverter. > + > + To compile this driver as a module, choose M here: the > + module will be called admv1014. > + > config ADRF6780 > tristate "Analog Devices ADRF6780 Microwave Upconverter" > depends on SPI > diff --git a/drivers/iio/frequency/Makefile b/drivers/iio/frequency/Makefile > index ae3136c79202..5f0348e5eb53 100644 > --- a/drivers/iio/frequency/Makefile > +++ b/drivers/iio/frequency/Makefile > @@ -7,4 +7,5 @@ > obj-$(CONFIG_AD9523) += ad9523.o > obj-$(CONFIG_ADF4350) += adf4350.o > obj-$(CONFIG_ADF4371) += adf4371.o > +obj-$(CONFIG_ADMV1014) += admv1014.o > obj-$(CONFIG_ADRF6780) += adrf6780.o > diff --git a/drivers/iio/frequency/admv1014.c b/drivers/iio/frequency/admv1014.c > new file mode 100644 > index 000000000000..06a60c246161 > --- /dev/null > +++ b/drivers/iio/frequency/admv1014.c > @@ -0,0 +1,823 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/* > + * ADMV1014 driver > + * > + * Copyright 2022 Analog Devices Inc. > + */ > + > +#include <linux/bitfield.h> > +#include <linux/bits.h> > +#include <linux/clk.h> > +#include <linux/clkdev.h> > +#include <linux/device.h> > +#include <linux/iio/iio.h> > +#include <linux/module.h> > +#include <linux/mod_devicetable.h> > +#include <linux/notifier.h> > +#include <linux/property.h> > +#include <linux/regulator/consumer.h> > +#include <linux/spi/spi.h> > +#include <linux/units.h> > + > +#include <asm/unaligned.h> > + > +/* ADMV1014 Register Map */ > +#define ADMV1014_REG_SPI_CONTROL 0x00 > +#define ADMV1014_REG_ALARM 0x01 > +#define ADMV1014_REG_ALARM_MASKS 0x02 > +#define ADMV1014_REG_ENABLE 0x03 > +#define ADMV1014_REG_QUAD 0x04 > +#define ADMV1014_REG_LO_AMP_PHASE_ADJUST1 0x05 > +#define ADMV1014_REG_MIXER 0x07 > +#define ADMV1014_REG_IF_AMP 0x08 > +#define ADMV1014_REG_IF_AMP_BB_AMP 0x09 > +#define ADMV1014_REG_BB_AMP_AGC 0x0A > +#define ADMV1014_REG_VVA_TEMP_COMP 0x0B > + > +/* ADMV1014_REG_SPI_CONTROL Map */ > +#define ADMV1014_PARITY_EN_MSK BIT(15) > +#define ADMV1014_SPI_SOFT_RESET_MSK BIT(14) > +#define ADMV1014_CHIP_ID_MSK GENMASK(11, 4) > +#define ADMV1014_CHIP_ID 0x9 > +#define ADMV1014_REVISION_ID_MSK GENMASK(3, 0) > + > +/* ADMV1014_REG_ALARM Map */ > +#define ADMV1014_PARITY_ERROR_MSK BIT(15) > +#define ADMV1014_TOO_FEW_ERRORS_MSK BIT(14) > +#define ADMV1014_TOO_MANY_ERRORS_MSK BIT(13) > +#define ADMV1014_ADDRESS_RANGE_ERROR_MSK BIT(12) > + > +/* ADMV1014_REG_ENABLE Map */ > +#define ADMV1014_IBIAS_PD_MSK BIT(14) > +#define ADMV1014_P1DB_COMPENSATION_MSK GENMASK(13, 12) > +#define ADMV1014_IF_AMP_PD_MSK BIT(11) > +#define ADMV1014_QUAD_BG_PD_MSK BIT(9) > +#define ADMV1014_BB_AMP_PD_MSK BIT(8) > +#define ADMV1014_QUAD_IBIAS_PD_MSK BIT(7) > +#define ADMV1014_DET_EN_MSK BIT(6) > +#define ADMV1014_BG_PD_MSK BIT(5) > + > +/* ADMV1014_REG_QUAD Map */ > +#define ADMV1014_QUAD_SE_MODE_MSK GENMASK(9, 6) > +#define ADMV1014_QUAD_FILTERS_MSK GENMASK(3, 0) > + > +/* ADMV1014_REG_LO_AMP_PHASE_ADJUST1 Map */ > +#define ADMV1014_LOAMP_PH_ADJ_I_FINE_MSK GENMASK(15, 9) > +#define ADMV1014_LOAMP_PH_ADJ_Q_FINE_MSK GENMASK(8, 2) > + > +/* ADMV1014_REG_MIXER Map */ > +#define ADMV1014_MIXER_VGATE_MSK GENMASK(15, 9) > +#define ADMV1014_DET_PROG_MSK GENMASK(6, 0) > + > +/* ADMV1014_REG_IF_AMP Map */ > +#define ADMV1014_IF_AMP_COARSE_GAIN_I_MSK GENMASK(11, 8) > +#define ADMV1014_IF_AMP_FINE_GAIN_Q_MSK GENMASK(7, 4) > +#define ADMV1014_IF_AMP_FINE_GAIN_I_MSK GENMASK(3, 0) > + > +/* ADMV1014_REG_IF_AMP_BB_AMP Map */ > +#define ADMV1014_IF_AMP_COARSE_GAIN_Q_MSK GENMASK(15, 12) > +#define ADMV1014_BB_AMP_OFFSET_Q_MSK GENMASK(9, 5) > +#define ADMV1014_BB_AMP_OFFSET_I_MSK GENMASK(4, 0) > + > +/* ADMV1014_REG_BB_AMP_AGC Map */ > +#define ADMV1014_BB_AMP_REF_GEN_MSK GENMASK(6, 3) > +#define ADMV1014_BB_AMP_GAIN_CTRL_MSK GENMASK(2, 1) > +#define ADMV1014_BB_SWITCH_HIGH_LOW_CM_MSK BIT(0) > + > +/* ADMV1014_REG_VVA_TEMP_COMP Map */ > +#define ADMV1014_VVA_TEMP_COMP_MSK GENMASK(15, 0) > + > +/* ADMV1014 Miscellaneous Defines */ > +#define ADMV1014_READ BIT(7) > +#define ADMV1014_REG_ADDR_READ_MSK GENMASK(6, 1) > +#define ADMV1014_REG_ADDR_WRITE_MSK GENMASK(22, 17) > +#define ADMV1014_REG_DATA_MSK GENMASK(16, 1) > +#define ADMV1014_NUM_REGULATORS 9 ... > + > +static int admv1014_init(struct admv1014_state *st) > +{ > + unsigned int chip_id, enable_reg, enable_reg_msk; > + struct spi_device *spi = st->spi; > + int ret; > + > + ret = regulator_bulk_enable(ADMV1014_NUM_REGULATORS, st->regulators); > + if (ret) { > + dev_err(&spi->dev, "Failed to enable regulators"); > + return ret; > + } > + > + ret = devm_add_action_or_reset(&spi->dev, admv1014_reg_disable, st->regulators); > + if (ret) > + return ret; > + > + ret = clk_prepare_enable(st->clkin); > + if (ret) > + return ret; > + > + ret = devm_add_action_or_reset(&spi->dev, admv1014_clk_disable, st->clkin); > + if (ret) > + return ret; > + > + st->nb.notifier_call = admv1014_freq_change; > + ret = devm_clk_notifier_register(&spi->dev, st->clkin, &st->nb); > + if (ret) > + return ret; > + > + ret = devm_add_action_or_reset(&spi->dev, admv1014_powerdown, st); > + if (ret) > + return ret; > + > + /* Perform a software reset */ > + ret = __admv1014_spi_update_bits(st, ADMV1014_REG_SPI_CONTROL, > + ADMV1014_SPI_SOFT_RESET_MSK, > + FIELD_PREP(ADMV1014_SPI_SOFT_RESET_MSK, 1)); > + if (ret) { > + dev_err(&spi->dev, "ADMV1014 SPI software reset failed.\n"); > + return ret; > + } > + > + ret = __admv1014_spi_update_bits(st, ADMV1014_REG_SPI_CONTROL, > + ADMV1014_SPI_SOFT_RESET_MSK, > + FIELD_PREP(ADMV1014_SPI_SOFT_RESET_MSK, 0)); > + if (ret) { > + dev_err(&spi->dev, "ADMV1014 SPI software reset disable failed.\n"); > + return ret; > + } > + > + ret = __admv1014_spi_write(st, ADMV1014_REG_VVA_TEMP_COMP, 0x727C); > + if (ret) { > + dev_err(&spi->dev, "Writing default Temperature Compensation value failed.\n"); > + return ret; > + } > + > + ret = __admv1014_spi_read(st, ADMV1014_REG_SPI_CONTROL, &chip_id); > + if (ret) > + return ret; > + > + chip_id = (chip_id & ADMV1014_CHIP_ID_MSK) >> 4; Trivial but this could be a FIELD_GET()
