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Commit 4b55dce8 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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Merge tag 'iio-for-4.20a' of... 

Merge tag 'iio-for-4.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

1st round of IIO new device support, features and cleanups in the 4.20 cycle.

There is a merge commit in here to pull in regmap support for repeatedly
reading the same register (to read out FIFOs).  Used by the adxl372 driver.
This will find uses elsewhere once we tidy up various drivers that are
effectively doing this and relying on not enabling regcache.

New device support
* Analog devices ADXL372 accelerometer
  - new driver for this accelerometer including fifo and and interrupt support.
    Follow up patches enforce trigger validation, add sampling frequency
    control and filter bandwidth control.  A later series added i2c support
    to the existing SPI support.
* ST lsm6dsx
  - rework and add support fo the LSM6DSO 6 axis mems sensor.
* Linear LTC 1660 DAC
  - new driver supporting the LTC 1660 and LTC 1665 SPI DACs.
* Microchip mcp3911 ADC.
  - new driver for this integrated analog front end and ADC.
* Qualcomm SPMI PMIC5 adc driver
  - using the spmi framework, new driver and bindings for this ADC.
    Follow up patch adds some missing channels.

Features
* ad5758
  - support hard reset using a gpio (if provided).
* mpu6050
  - Regulator support
* qcom-spmi-adc5
  - Sanity check the channel numbers provided by DT to make sure the
    driver actually knows about them.
* sc27xx
  - give raw data for channel 20 as it's used on all known boards for
    the headset which needs a custom converstion function.  If it turns
    out someone builds a board where this isn't true we will deal with it
    when it happens.
  - add ADC scale calibration.
* tsl2772
  - support device tree binding to set the proximity led settings.
  - regulator supprot.
  - binding for apds9930 - trivial addition as register compatible with tsl2772.

Cleanups / Minor fixes

* adxl345
  - supress a static checker warning but explicitly checking if the id
    object is null.
* bh1750
  - avoid CONFIG_PM_SLEEP checks.
  - SPDX.
* bme680
  - spelling mistake
  - use clamp rather than open coding.
  - white space and other similar fixes.
  - rename MSK to MASK for clarifty and use GENMASK to specify them.
  - use the FIELD_GET macro rather than a very odd accessor of dividing by
    16 to get the shift.
  - rework to share handing for oversampling of the various channels in a
    unified way.
  - check explicitly for val2 in write_raw function to ensure it is 0.
  - drop some field defines that don't add anything.
* dpot-adc
  - SPDX
* envelope detector
  - SPDX
* isl29501
  - fix an ancient compiler warning mostly because it results in much
    nicer code.
* max30102
  - mark switch fall throughs.
* max44000
  - drop an unused variable.
* max512
  - avoid CONFIG_PM_SLEEP checks.
* max5481
  - use of_device_get_match_data rather than open coding it.
* max5821
  - avoid CONFIG_PM_SLEEP checks.
* max9611
  - explicity cast an enum to an integer to make it totally clear that
    this is intended.
* mcp4018
  - fix an inconsistent MODULE_LICENSE.
  - use of_device_get_match_data rather than open coding it.
* mcp4531
  - use of_device_get_match_data rather than open coding it.
  - SPDX
* mcp4725
  - avoid CONFIG_PM_SLEEP checks.
* mcp4922
  - Fix error handling and prevent writing a negative to when setting the
    output voltage.
* ms5611
  - drop deprecated compatible strings without manufacturer from being
    explicitly listed.  They are handled anyway.
  - SPDX
* multiplexer
  - SPDX
* qcom-vadc
  - fix inconsistent documentation for reg.
* ti-dac5571
  - provide and of_match_table.

* treewide
  - update Michael Hennerich's email address.
  - Use %pOFn rather than device_node.name.
* documentation.
  - tidy up a wrong kernel version for the introduction of the
    position_relative ABI.
parents 064ee3c0 daae7861
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Showing with 3927 additions and 356 deletions
Documentation/ABI/testing/sysfs-bus-iio
View file @ 4b55dce8
......@@ -199,7 +199,7 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw
What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw
KernelVersion: 4.18
KernelVersion: 4.19
Contact: linux-iio@vger.kernel.org
Description:
Relative position in direction x or y on a pad (may be
......
Documentation/devicetree/bindings/iio/accel/adxl372.txt 0 → 100644
View file @ 4b55dce8
Analog Devices ADXL372 3-Axis, +/-(200g) Digital Accelerometer
http://www.analog.com/media/en/technical-documentation/data-sheets/adxl372.pdf
Required properties:
- compatible : should be "adi,adxl372"
- reg: the I2C address or SPI chip select number for the device
Required properties for SPI bus usage:
- spi-max-frequency: Max SPI frequency to use
Optional properties:
- interrupts: interrupt mapping for IRQ as documented in
Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
Example for a I2C device node:
accelerometer@53 {
compatible = "adi,adxl372";
reg = <0x53>;
interrupt-parent = <&gpio>;
interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
};
Example for a SPI device node:
accelerometer@0 {
compatible = "adi,adxl372";
reg = <0>;
spi-max-frequency = <1000000>;
interrupt-parent = <&gpio>;
interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
};
Documentation/devicetree/bindings/iio/adc/mcp3911.txt 0 → 100644
View file @ 4b55dce8
* Microchip MCP3911 Dual channel analog front end (ADC)
Required properties:
- compatible: Should be "microchip,mcp3911"
- reg: SPI chip select number for the device
Recommended properties:
- spi-max-frequency: Definition as per
Documentation/devicetree/bindings/spi/spi-bus.txt.
Max frequency for this chip is 20MHz.
Optional properties:
- clocks: Phandle and clock identifier for sampling clock
- interrupt-parent: Phandle to the parent interrupt controller
- interrupts: IRQ line for the ADC
- microchip,device-addr: Device address when multiple MCP3911 chips are present on the
same SPI bus. Valid values are 0-3. Defaults to 0.
- vref-supply: Phandle to the external reference voltage supply.
Example:
adc@0 {
compatible = "microchip,mcp3911";
reg = <0>;
interrupt-parent = <&gpio5>;
interrupts = <15 IRQ_TYPE_EDGE_RISING>;
spi-max-frequency = <20000000>;
microchip,device-addr = <0>;
vref-supply = <&vref_reg>;
clocks = <&xtal>;
};
Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt
View file @ 4b55dce8
Qualcomm's SPMI PMIC voltage ADC
Qualcomm's SPMI PMIC ADC
SPMI PMIC voltage ADC (VADC) provides interface to clients to read
voltage. The VADC is a 15-bit sigma-delta ADC.
- SPMI PMIC voltage ADC (VADC) provides interface to clients to read
voltage. The VADC is a 15-bit sigma-delta ADC.
- SPMI PMIC5 voltage ADC (ADC) provides interface to clients to read
voltage. The VADC is a 16-bit sigma-delta ADC.
VADC node:
......@@ -9,11 +11,13 @@ VADC node:
Usage: required
Value type: <string>
Definition: Should contain "qcom,spmi-vadc".
Should contain "qcom,spmi-adc5" for PMIC5 ADC driver.
Should contain "qcom,spmi-adc-rev2" for PMIC rev2 ADC driver.
- reg:
Usage: required
Value type: <prop-encoded-array>
Definition: VADC base address and length in the SPMI PMIC register map.
Definition: VADC base address in the SPMI PMIC register map.
- #address-cells:
Usage: required
......@@ -45,13 +49,26 @@ Channel node properties:
Definition: ADC channel number.
See include/dt-bindings/iio/qcom,spmi-vadc.h
- label:
Usage: required for "qcom,spmi-adc5" and "qcom,spmi-adc-rev2"
Value type: <empty>
Definition: ADC input of the platform as seen in the schematics.
For thermistor inputs connected to generic AMUX or GPIO inputs
these can vary across platform for the same pins. Hence select
the platform schematics name for this channel.
- qcom,decimation:
Usage: optional
Value type: <u32>
Definition: This parameter is used to decrease ADC sampling rate.
Quicker measurements can be made by reducing decimation ratio.
Valid values are 512, 1024, 2048, 4096.
If property is not found, default value of 512 will be used.
- For compatible property "qcom,spmi-vadc", valid values are
512, 1024, 2048, 4096. If property is not found, default value
of 512 will be used.
- For compatible property "qcom,spmi-adc5", valid values are 250, 420
and 840. If property is not found, default value of 840 is used.
- For compatible property "qcom,spmi-adc-rev2", valid values are 256,
512 and 1024. If property is not present, default value is 1024.
- qcom,pre-scaling:
Usage: optional
......@@ -66,21 +83,38 @@ Channel node properties:
- qcom,ratiometric:
Usage: optional
Value type: <empty>
Definition: Channel calibration type. If this property is specified
VADC will use the VDD reference (1.8V) and GND for channel
calibration. If property is not found, channel will be
calibrated with 0.625V and 1.25V reference channels, also
known as absolute calibration.
Definition: Channel calibration type.
- For compatible property "qcom,spmi-vadc", if this property is
specified VADC will use the VDD reference (1.8V) and GND for
channel calibration. If property is not found, channel will be
calibrated with 0.625V and 1.25V reference channels, also
known as absolute calibration.
- For compatible property "qcom,spmi-adc5" and "qcom,spmi-adc-rev2",
if this property is specified VADC will use the VDD reference
(1.875V) and GND for channel calibration. If property is not found,
channel will be calibrated with 0V and 1.25V reference channels,
also known as absolute calibration.
- qcom,hw-settle-time:
Usage: optional
Value type: <u32>
Definition: Time between AMUX getting configured and the ADC starting
conversion. Delay = 100us * (value) for value < 11, and
2ms * (value - 10) otherwise.
Valid values are: 0, 100, 200, 300, 400, 500, 600, 700, 800,
900 us and 1, 2, 4, 6, 8, 10 ms
If property is not found, channel will use 0us.
conversion. The 'hw_settle_time' is an index used from valid values
and programmed in hardware to achieve the hardware settling delay.
- For compatible property "qcom,spmi-vadc" and "qcom,spmi-adc-rev2",
Delay = 100us * (hw_settle_time) for hw_settle_time < 11,
and 2ms * (hw_settle_time - 10) otherwise.
Valid values are: 0, 100, 200, 300, 400, 500, 600, 700, 800,
900 us and 1, 2, 4, 6, 8, 10 ms.
If property is not found, channel will use 0us.
- For compatible property "qcom,spmi-adc5", delay = 15us for
value 0, 100us * (value) for values < 11,
and 2ms * (value - 10) otherwise.
Valid values are: 15, 100, 200, 300, 400, 500, 600, 700, 800,
900 us and 1, 2, 4, 6, 8, 10 ms
Certain controller digital versions have valid values of
15, 100, 200, 300, 400, 500, 600, 700, 1, 2, 4, 8, 16, 32, 64, 128 ms
If property is not found, channel will use 15us.
- qcom,avg-samples:
Usage: optional
......@@ -89,13 +123,18 @@ Channel node properties:
Averaging provides the option to obtain a single measurement
from the ADC that is an average of multiple samples. The value
selected is 2^(value).
Valid values are: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512
If property is not found, 1 sample will be used.
- For compatible property "qcom,spmi-vadc", valid values
are: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512
If property is not found, 1 sample will be used.
- For compatible property "qcom,spmi-adc5" and "qcom,spmi-adc-rev2",
valid values are: 1, 2, 4, 8, 16
If property is not found, 1 sample will be used.
NOTE:
Following channels, also known as reference point channels, are used for
result calibration and their channel configuration nodes should be defined:
For compatible property "qcom,spmi-vadc" following channels, also known as
reference point channels, are used for result calibration and their channel
configuration nodes should be defined:
VADC_REF_625MV and/or VADC_SPARE1(based on PMIC version) VADC_REF_1250MV,
VADC_GND_REF and VADC_VDD_VADC.
......@@ -104,7 +143,7 @@ Example:
/* VADC node */
pmic_vadc: vadc@3100 {
compatible = "qcom,spmi-vadc";
reg = <0x3100 0x100>;
reg = <0x3100>;
interrupts = <0x0 0x31 0x0 IRQ_TYPE_EDGE_RISING>;
#address-cells = <1>;
#size-cells = <0>;
......
Documentation/devicetree/bindings/iio/adc/sprd,sc27xx-adc.txt
View file @ 4b55dce8
......@@ -12,6 +12,8 @@ Required properties:
- interrupts: The interrupt number for the ADC device.
- #io-channel-cells: Number of cells in an IIO specifier.
- hwlocks: Reference to a phandle of a hwlock provider node.
- nvmem-cells: A phandle to the calibration cells provided by eFuse device.
- nvmem-cell-names: Should be "big_scale_calib", "small_scale_calib".
Example:
......@@ -32,5 +34,7 @@ Example:
interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
#io-channel-cells = <1>;
hwlocks = <&hwlock 4>;
nvmem-cells = <&adc_big_scale>, <&adc_small_scale>;
nvmem-cell-names = "big_scale_calib", "small_scale_calib";
};
};
Documentation/devicetree/bindings/iio/dac/ad5758.txt
View file @ 4b55dce8
......@@ -50,6 +50,9 @@ Required properties:
Optional properties:
- reset-gpios : GPIO spec for the RESET pin. If specified, it will be
asserted during driver probe.
- adi,dc-dc-ilim-microamp: The dc-to-dc converter current limit
The following values are currently supported [uA]:
* 150000
......@@ -71,6 +74,8 @@ AD5758 Example:
spi-max-frequency = <1000000>;
spi-cpha;
reset-gpios = <&gpio 22 0>;
adi,dc-dc-mode = <2>;
adi,range-microvolt = <0 10000000>;
adi,dc-dc-ilim-microamp = <200000>;
......
Documentation/devicetree/bindings/iio/dac/ltc1660.txt 0 → 100644
View file @ 4b55dce8
* Linear Technology Micropower octal 8-Bit and 10-Bit DACs
Required properties:
- compatible: Must be one of the following:
"lltc,ltc1660"
"lltc,ltc1665"
- reg: SPI chip select number for the device
- vref-supply: Phandle to the voltage reference supply
Recommended properties:
- spi-max-frequency: Definition as per
Documentation/devicetree/bindings/spi/spi-bus.txt.
Max frequency for this chip is 5 MHz.
Example:
dac@0 {
compatible = "lltc,ltc1660";
reg = <0>;
spi-max-frequency = <5000000>;
vref-supply = <&vref_reg>;
};
Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt
View file @ 4b55dce8
......@@ -20,6 +20,7 @@ Required properties:
bindings.
Optional properties:
- vddio-supply: regulator phandle for VDDIO supply
- mount-matrix: an optional 3x3 mounting rotation matrix
- i2c-gate node. These devices also support an auxiliary i2c bus. This is
simple enough to be described using the i2c-gate binding. See
......
Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
View file @ 4b55dce8
......@@ -7,6 +7,7 @@ Required properties:
"st,lsm6dsl"
"st,lsm6dsm"
"st,ism330dlc"
"st,lsm6dso"
- reg: i2c address of the sensor / spi cs line
Optional properties:
......
Documentation/devicetree/bindings/iio/light/tsl2772.txt 0 → 100644
View file @ 4b55dce8
* AMS/TAOS ALS and proximity sensor
Required properties:
- compatible: Should be one of
"amstaos,tsl2571"
"amstaos,tsl2671"
"amstaos,tmd2671"
"amstaos,tsl2771"
"amstaos,tmd2771"
"amstaos,tsl2572"
"amstaos,tsl2672"
"amstaos,tmd2672"
"amstaos,tsl2772"
"amstaos,tmd2772"
"avago,apds9930"
- reg: the I2C address of the device
Optional properties:
- amstaos,proximity-diodes - proximity diodes to enable. <0>, <1>, or <0 1>
are the only valid values.
- led-max-microamp - current for the proximity LED. Must be 100000, 50000,
25000, or 13000.
- vdd-supply: phandle to the regulator that provides power to the sensor.
- vddio-supply: phandle to the regulator that provides power to the bus.
- interrupts: the sole interrupt generated by the device
Refer to interrupt-controller/interrupts.txt for generic interrupt client
node bindings.
Example:
tsl2772@39 {
compatible = "amstaos,tsl2772";
reg = <0x39>;
interrupts-extended = <&msmgpio 61 IRQ_TYPE_EDGE_FALLING>;
vdd-supply = <&pm8941_l17>;
vddio-supply = <&pm8941_lvs1>;
amstaos,proximity-diodes = <0>;
led-max-microamp = <100000>;
};
Documentation/devicetree/bindings/trivial-devices.txt
View file @ 4b55dce8
......@@ -21,16 +21,6 @@ adi,adt7490 +/-1C TDM Extended Temp Range I.C
adi,adxl345 Three-Axis Digital Accelerometer
adi,adxl346 Three-Axis Digital Accelerometer (backward-compatibility value "adi,adxl345" must be listed too)
ams,iaq-core AMS iAQ-Core VOC Sensor
amstaos,tsl2571 AMS/TAOS ALS and proximity sensor
amstaos,tsl2671 AMS/TAOS ALS and proximity sensor
amstaos,tmd2671 AMS/TAOS ALS and proximity sensor
amstaos,tsl2771 AMS/TAOS ALS and proximity sensor
amstaos,tmd2771 AMS/TAOS ALS and proximity sensor
amstaos,tsl2572 AMS/TAOS ALS and proximity sensor
amstaos,tsl2672 AMS/TAOS ALS and proximity sensor
amstaos,tmd2672 AMS/TAOS ALS and proximity sensor
amstaos,tsl2772 AMS/TAOS ALS and proximity sensor
amstaos,tmd2772 AMS/TAOS ALS and proximity sensor
at,24c08 i2c serial eeprom (24cxx)
atmel,at97sc3204t i2c trusted platform module (TPM)
capella,cm32181 CM32181: Ambient Light Sensor
......
MAINTAINERS
View file @ 4b55dce8
......@@ -550,6 +550,15 @@ W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/input/misc/adxl34x.c
ADXL372 THREE-AXIS DIGITAL ACCELEROMETER DRIVER
M: Stefan Popa <stefan.popa@analog.com>
W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/iio/accel/adxl372.c
F: drivers/iio/accel/adxl372_spi.c
F: drivers/iio/accel/adxl372_i2c.c
F: Documentation/devicetree/bindings/iio/accel/adxl372.txt
AF9013 MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
L: linux-media@vger.kernel.org
......@@ -8614,6 +8623,13 @@ L: linux-scsi@vger.kernel.org
S: Maintained
F: drivers/scsi/sym53c8xx_2/
LTC1660 DAC DRIVER
M: Marcus Folkesson <marcus.folkesson@gmail.com>
L: linux-iio@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/iio/dac/ltc1660.txt
F: drivers/iio/dac/ltc1660.c
LTC4261 HARDWARE MONITOR DRIVER
M: Guenter Roeck <linux@roeck-us.net>
L: linux-hwmon@vger.kernel.org
......@@ -9550,6 +9566,14 @@ L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/microchip/lan743x_*
MICROCHIP / ATMEL MCP3911 ADC DRIVER
M: Marcus Folkesson <marcus.folkesson@gmail.com>
M: Kent Gustavsson <kent@minoris.se>
L: linux-iio@vger.kernel.org
S: Supported
F: drivers/iio/adc/mcp3911.c
F: Documentation/devicetree/bindings/iio/adc/mcp3911.txt
MICROCHIP USB251XB DRIVER
M: Richard Leitner <richard.leitner@skidata.com>
L: linux-usb@vger.kernel.org
......
drivers/iio/accel/Kconfig
View file @ 4b55dce8
......@@ -60,6 +60,33 @@ config ADXL345_SPI
will be called adxl345_spi and you will also get adxl345_core
for the core module.
config ADXL372
tristate
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
config ADXL372_SPI
tristate "Analog Devices ADXL372 3-Axis Accelerometer SPI Driver"
depends on SPI
select ADXL372
select REGMAP_SPI
help
Say yes here to add support for the Analog Devices ADXL372 triaxial
acceleration sensor.
To compile this driver as a module, choose M here: the
module will be called adxl372_spi.
config ADXL372_I2C
tristate "Analog Devices ADXL372 3-Axis Accelerometer I2C Driver"
depends on I2C
select ADXL372
select REGMAP_I2C
help
Say yes here to add support for the Analog Devices ADXL372 triaxial
acceleration sensor.
To compile this driver as a module, choose M here: the
module will be called adxl372_i2c.
config BMA180
tristate "Bosch BMA180/BMA250 3-Axis Accelerometer Driver"
depends on I2C
......
drivers/iio/accel/Makefile
View file @ 4b55dce8
......@@ -9,6 +9,9 @@ obj-$(CONFIG_ADIS16209) += adis16209.o
obj-$(CONFIG_ADXL345) += adxl345_core.o
obj-$(CONFIG_ADXL345_I2C) += adxl345_i2c.o
obj-$(CONFIG_ADXL345_SPI) += adxl345_spi.o
obj-$(CONFIG_ADXL372) += adxl372.o
obj-$(CONFIG_ADXL372_I2C) += adxl372_i2c.o
obj-$(CONFIG_ADXL372_SPI) += adxl372_spi.o
obj-$(CONFIG_BMA180) += bma180.o
obj-$(CONFIG_BMA220) += bma220_spi.o
obj-$(CONFIG_BMC150_ACCEL) += bmc150-accel-core.o
......
drivers/iio/accel/adxl345_i2c.c
View file @ 4b55dce8
......@@ -27,6 +27,9 @@ static int adxl345_i2c_probe(struct i2c_client *client,
{
struct regmap *regmap;
if (!id)
return -ENODEV;
regmap = devm_regmap_init_i2c(client, &adxl345_i2c_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&client->dev, "Error initializing i2c regmap: %ld\n",
......@@ -35,7 +38,7 @@ static int adxl345_i2c_probe(struct i2c_client *client,
}
return adxl345_core_probe(&client->dev, regmap, id->driver_data,
id ? id->name : NULL);
id->name);
}
static int adxl345_i2c_remove(struct i2c_client *client)
......
drivers/iio/accel/adxl372.c 0 → 100644
View file @ 4b55dce8
This diff is collapsed.
drivers/iio/accel/adxl372.h 0 → 100644
View file @ 4b55dce8
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* ADXL372 3-Axis Digital Accelerometer
*
* Copyright 2018 Analog Devices Inc.
*/
#ifndef _ADXL372_H_
#define _ADXL372_H_
#define ADXL372_REVID 0x03
int adxl372_probe(struct device *dev, struct regmap *regmap,
int irq, const char *name);
bool adxl372_readable_noinc_reg(struct device *dev, unsigned int reg);
#endif /* _ADXL372_H_ */
drivers/iio/accel/adxl372_i2c.c 0 → 100644
View file @ 4b55dce8
// SPDX-License-Identifier: GPL-2.0+
/*
* ADXL372 3-Axis Digital Accelerometer I2C driver
*
* Copyright 2018 Analog Devices Inc.
*/
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include "adxl372.h"
static const struct regmap_config adxl372_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.readable_noinc_reg = adxl372_readable_noinc_reg,
};
static int adxl372_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct regmap *regmap;
unsigned int regval;
int ret;
regmap = devm_regmap_init_i2c(client, &adxl372_regmap_config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
ret = regmap_read(regmap, ADXL372_REVID, &regval);
if (ret < 0)
return ret;
/* Starting with the 3rd revision an I2C chip bug was fixed */
if (regval < 3)
dev_warn(&client->dev,
"I2C might not work properly with other devices on the bus");
return adxl372_probe(&client->dev, regmap, client->irq, id->name);
}
static const struct i2c_device_id adxl372_i2c_id[] = {
{ "adxl372", 0 },
{}
};
MODULE_DEVICE_TABLE(i2c, adxl372_i2c_id);
static struct i2c_driver adxl372_i2c_driver = {
.driver = {
.name = "adxl372_i2c",
},
.probe = adxl372_i2c_probe,
.id_table = adxl372_i2c_id,
};
module_i2c_driver(adxl372_i2c_driver);
MODULE_AUTHOR("Stefan Popa <stefan.popa@analog.com>");
MODULE_DESCRIPTION("Analog Devices ADXL372 3-axis accelerometer I2C driver");
MODULE_LICENSE("GPL");
drivers/iio/accel/adxl372_spi.c 0 → 100644
View file @ 4b55dce8
// SPDX-License-Identifier: GPL-2.0+
/*
* ADXL372 3-Axis Digital Accelerometer SPI driver
*
* Copyright 2018 Analog Devices Inc.
*/
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/spi/spi.h>
#include "adxl372.h"
static const struct regmap_config adxl372_spi_regmap_config = {
.reg_bits = 7,
.pad_bits = 1,
.val_bits = 8,
.read_flag_mask = BIT(0),
.readable_noinc_reg = adxl372_readable_noinc_reg,
};
static int adxl372_spi_probe(struct spi_device *spi)
{
const struct spi_device_id *id = spi_get_device_id(spi);
struct regmap *regmap;
regmap = devm_regmap_init_spi(spi, &adxl372_spi_regmap_config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
return adxl372_probe(&spi->dev, regmap, spi->irq, id->name);
}
static const struct spi_device_id adxl372_spi_id[] = {
{ "adxl372", 0 },
{}
};
MODULE_DEVICE_TABLE(spi, adxl372_spi_id);
static struct spi_driver adxl372_spi_driver = {
.driver = {
.name = "adxl372_spi",
},
.probe = adxl372_spi_probe,
.id_table = adxl372_spi_id,
};
module_spi_driver(adxl372_spi_driver);
MODULE_AUTHOR("Stefan Popa <stefan.popa@analog.com>");
MODULE_DESCRIPTION("Analog Devices ADXL372 3-axis accelerometer SPI driver");
MODULE_LICENSE("GPL");
drivers/iio/adc/Kconfig
View file @ 4b55dce8
......@@ -501,6 +501,16 @@ config MCP3422
This driver can also be built as a module. If so, the module will be
called mcp3422.
config MCP3911
tristate "Microchip Technology MCP3911 driver"
depends on SPI
help
Say yes here to build support for Microchip Technology's MCP3911
analog to digital converter.
This driver can also be built as a module. If so, the module will be
called mcp3911.
config MEDIATEK_MT6577_AUXADC
tristate "MediaTek AUXADC driver"
depends on ARCH_MEDIATEK || COMPILE_TEST
......@@ -596,6 +606,26 @@ config QCOM_SPMI_VADC
To compile this driver as a module, choose M here: the module will
be called qcom-spmi-vadc.
config QCOM_SPMI_ADC5
tristate "Qualcomm Technologies Inc. SPMI PMIC5 ADC"
depends on SPMI
select REGMAP_SPMI
select QCOM_VADC_COMMON
help
This is the IIO Voltage PMIC5 ADC driver for Qualcomm Technologies Inc.
The driver supports multiple channels read. The ADC is a 16-bit
sigma-delta ADC. The hardware supports calibrated results for
conversion requests and clients include reading voltage phone
power, on board system thermistors connected to the PMIC ADC,
PMIC die temperature, charger temperature, battery current, USB voltage
input, voltage signals connected to supported PMIC GPIO inputs. The
hardware supports internal pull-up for thermistors and can choose between
a 100k, 30k and 400k pull up using the ADC channels.
To compile this driver as a module, choose M here: the module will
be called qcom-spmi-adc5.
config RCAR_GYRO_ADC
tristate "Renesas R-Car GyroADC driver"
depends on ARCH_RCAR_GEN2 || COMPILE_TEST
......
drivers/iio/adc/Makefile
View file @ 4b55dce8
......@@ -47,12 +47,14 @@ obj-$(CONFIG_MAX1363) += max1363.o
obj-$(CONFIG_MAX9611) += max9611.o
obj-$(CONFIG_MCP320X) += mcp320x.o
obj-$(CONFIG_MCP3422) += mcp3422.o
obj-$(CONFIG_MCP3911) += mcp3911.o
obj-$(CONFIG_MEDIATEK_MT6577_AUXADC) += mt6577_auxadc.o
obj-$(CONFIG_MEN_Z188_ADC) += men_z188_adc.o
obj-$(CONFIG_MESON_SARADC) += meson_saradc.o
obj-$(CONFIG_MXS_LRADC_ADC) += mxs-lradc-adc.o
obj-$(CONFIG_NAU7802) += nau7802.o
obj-$(CONFIG_PALMAS_GPADC) += palmas_gpadc.o
obj-$(CONFIG_QCOM_SPMI_ADC5) += qcom-spmi-adc5.o
obj-$(CONFIG_QCOM_SPMI_IADC) += qcom-spmi-iadc.o
obj-$(CONFIG_QCOM_VADC_COMMON) += qcom-vadc-common.o
obj-$(CONFIG_QCOM_SPMI_VADC) += qcom-spmi-vadc.o
......
drivers/iio/adc/ad7298.c
View file @ 4b55dce8
......@@ -385,6 +385,6 @@ static struct spi_driver ad7298_driver = {
};
module_spi_driver(ad7298_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD7298 ADC");
MODULE_LICENSE("GPL v2");
drivers/iio/adc/ad7476.c
View file @ 4b55dce8
......@@ -328,6 +328,6 @@ static struct spi_driver ad7476_driver = {
};
module_spi_driver(ad7476_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD7476 and similar 1-channel ADCs");
MODULE_LICENSE("GPL v2");
drivers/iio/adc/ad7793.c
View file @ 4b55dce8
......@@ -822,6 +822,6 @@ static struct spi_driver ad7793_driver = {
};
module_spi_driver(ad7793_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD7793 and similar ADCs");
MODULE_LICENSE("GPL v2");
drivers/iio/adc/ad7887.c
View file @ 4b55dce8
......@@ -362,6 +362,6 @@ static struct spi_driver ad7887_driver = {
};
module_spi_driver(ad7887_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD7887 ADC");
MODULE_LICENSE("GPL v2");
drivers/iio/adc/ad7923.c
View file @ 4b55dce8
......@@ -363,7 +363,7 @@ static struct spi_driver ad7923_driver = {
};
module_spi_driver(ad7923_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_AUTHOR("Patrick Vasseur <patrick.vasseur@c-s.fr>");
MODULE_DESCRIPTION("Analog Devices AD7904/AD7914/AD7923/AD7924 ADC");
MODULE_LICENSE("GPL v2");
drivers/iio/adc/ad799x.c
View file @ 4b55dce8
......@@ -892,6 +892,6 @@ static struct i2c_driver ad799x_driver = {
};
module_i2c_driver(ad799x_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD799x ADC");
MODULE_LICENSE("GPL v2");
drivers/iio/adc/envelope-detector.c
View file @ 4b55dce8
// SPDX-License-Identifier: GPL-2.0
/*
* Driver for an envelope detector using a DAC and a comparator
*
* Copyright (C) 2016 Axentia Technologies AB
*
* Author: Peter Rosin <peda@axentia.se>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
......
drivers/iio/adc/max9611.c
View file @ 4b55dce8
......@@ -289,7 +289,7 @@ static int max9611_read_csa_voltage(struct max9611_dev *max9611,
return ret;
if (*adc_raw > 0) {
*csa_gain = gain_selectors[i];
*csa_gain = (enum max9611_csa_gain)gain_selectors[i];
return 0;
}
}
......
drivers/iio/adc/mcp3911.c 0 → 100644
View file @ 4b55dce8
// SPDX-License-Identifier: GPL-2.0
/*
* Driver for Microchip MCP3911, Two-channel Analog Front End
*
* Copyright (C) 2018 Marcus Folkesson <marcus.folkesson@gmail.com>
* Copyright (C) 2018 Kent Gustavsson <kent@minoris.se>
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/iio/iio.h>
#include <linux/module.h>
#include <linux/regulator/consumer.h>
#include <linux/spi/spi.h>
#define MCP3911_REG_CHANNEL0 0x00
#define MCP3911_REG_CHANNEL1 0x03
#define MCP3911_REG_MOD 0x06
#define MCP3911_REG_PHASE 0x07
#define MCP3911_REG_GAIN 0x09
#define MCP3911_REG_STATUSCOM 0x0a
#define MCP3911_STATUSCOM_CH1_24WIDTH BIT(4)
#define MCP3911_STATUSCOM_CH0_24WIDTH BIT(3)
#define MCP3911_STATUSCOM_EN_OFFCAL BIT(2)
#define MCP3911_STATUSCOM_EN_GAINCAL BIT(1)
#define MCP3911_REG_CONFIG 0x0c
#define MCP3911_CONFIG_CLKEXT BIT(1)
#define MCP3911_CONFIG_VREFEXT BIT(2)
#define MCP3911_REG_OFFCAL_CH0 0x0e
#define MCP3911_REG_GAINCAL_CH0 0x11
#define MCP3911_REG_OFFCAL_CH1 0x14
#define MCP3911_REG_GAINCAL_CH1 0x17
#define MCP3911_REG_VREFCAL 0x1a
#define MCP3911_CHANNEL(x) (MCP3911_REG_CHANNEL0 + x * 3)
#define MCP3911_OFFCAL(x) (MCP3911_REG_OFFCAL_CH0 + x * 6)
/* Internal voltage reference in uV */
#define MCP3911_INT_VREF_UV 1200000
#define MCP3911_REG_READ(reg, id) ((((reg) << 1) | ((id) << 5) | (1 << 0)) & 0xff)
#define MCP3911_REG_WRITE(reg, id) ((((reg) << 1) | ((id) << 5) | (0 << 0)) & 0xff)
#define MCP3911_NUM_CHANNELS 2
struct mcp3911 {
struct spi_device *spi;
struct mutex lock;
struct regulator *vref;
struct clk *clki;
u32 dev_addr;
};
static int mcp3911_read(struct mcp3911 *adc, u8 reg, u32 *val, u8 len)
{
int ret;
reg = MCP3911_REG_READ(reg, adc->dev_addr);
ret = spi_write_then_read(adc->spi, &reg, 1, val, len);
if (ret < 0)
return ret;
be32_to_cpus(val);
*val >>= ((4 - len) * 8);
dev_dbg(&adc->spi->dev, "reading 0x%x from register 0x%x\n", *val,
reg >> 1);
return ret;
}
static int mcp3911_write(struct mcp3911 *adc, u8 reg, u32 val, u8 len)
{
dev_dbg(&adc->spi->dev, "writing 0x%x to register 0x%x\n", val, reg);
val <<= (3 - len) * 8;
cpu_to_be32s(&val);
val |= MCP3911_REG_WRITE(reg, adc->dev_addr);
return spi_write(adc->spi, &val, len + 1);
}
static int mcp3911_update(struct mcp3911 *adc, u8 reg, u32 mask,
u32 val, u8 len)
{
u32 tmp;
int ret;
ret = mcp3911_read(adc, reg, &tmp, len);
if (ret)
return ret;
val &= mask;
val |= tmp & ~mask;
return mcp3911_write(adc, reg, val, len);
}
static int mcp3911_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *channel, int *val,
int *val2, long mask)
{
struct mcp3911 *adc = iio_priv(indio_dev);
int ret = -EINVAL;
mutex_lock(&adc->lock);
switch (mask) {
case IIO_CHAN_INFO_RAW:
ret = mcp3911_read(adc,
MCP3911_CHANNEL(channel->channel), val, 3);
if (ret)
goto out;
ret = IIO_VAL_INT;
break;
case IIO_CHAN_INFO_OFFSET:
ret = mcp3911_read(adc,
MCP3911_OFFCAL(channel->channel), val, 3);
if (ret)
goto out;
ret = IIO_VAL_INT;
break;
case IIO_CHAN_INFO_SCALE:
if (adc->vref) {
ret = regulator_get_voltage(adc->vref);
if (ret < 0) {
dev_err(indio_dev->dev.parent,
"failed to get vref voltage: %d\n",
ret);
goto out;
}
*val = ret / 1000;
} else {
*val = MCP3911_INT_VREF_UV;
}
*val2 = 24;
ret = IIO_VAL_FRACTIONAL_LOG2;
break;
}
out:
mutex_unlock(&adc->lock);
return ret;
}
static int mcp3911_write_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *channel, int val,
int val2, long mask)
{
struct mcp3911 *adc = iio_priv(indio_dev);
int ret = -EINVAL;
mutex_lock(&adc->lock);
switch (mask) {
case IIO_CHAN_INFO_OFFSET:
if (val2 != 0) {
ret = -EINVAL;
goto out;
}
/* Write offset */
ret = mcp3911_write(adc, MCP3911_OFFCAL(channel->channel), val,
3);
if (ret)
goto out;
/* Enable offset*/
ret = mcp3911_update(adc, MCP3911_REG_STATUSCOM,
MCP3911_STATUSCOM_EN_OFFCAL,
MCP3911_STATUSCOM_EN_OFFCAL, 2);
break;
}
out:
mutex_unlock(&adc->lock);
return ret;
}
#define MCP3911_CHAN(idx) { \
.type = IIO_VOLTAGE, \
.indexed = 1, \
.channel = idx, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
BIT(IIO_CHAN_INFO_OFFSET) | \
BIT(IIO_CHAN_INFO_SCALE), \
}
static const struct iio_chan_spec mcp3911_channels[] = {
MCP3911_CHAN(0),
MCP3911_CHAN(1),
};
static const struct iio_info mcp3911_info = {
.read_raw = mcp3911_read_raw,
.write_raw = mcp3911_write_raw,
};
static int mcp3911_config(struct mcp3911 *adc, struct device_node *of_node)
{
u32 configreg;
int ret;
of_property_read_u32(of_node, "device-addr", &adc->dev_addr);
if (adc->dev_addr > 3) {
dev_err(&adc->spi->dev,
"invalid device address (%i). Must be in range 0-3.\n",
adc->dev_addr);
return -EINVAL;
}
dev_dbg(&adc->spi->dev, "use device address %i\n", adc->dev_addr);
ret = mcp3911_read(adc, MCP3911_REG_CONFIG, &configreg, 2);
if (ret)
return ret;
if (adc->vref) {
dev_dbg(&adc->spi->dev, "use external voltage reference\n");
configreg |= MCP3911_CONFIG_VREFEXT;
} else {
dev_dbg(&adc->spi->dev,
"use internal voltage reference (1.2V)\n");
configreg &= ~MCP3911_CONFIG_VREFEXT;
}
if (adc->clki) {
dev_dbg(&adc->spi->dev, "use external clock as clocksource\n");
configreg |= MCP3911_CONFIG_CLKEXT;
} else {
dev_dbg(&adc->spi->dev,
"use crystal oscillator as clocksource\n");
configreg &= ~MCP3911_CONFIG_CLKEXT;
}
return mcp3911_write(adc, MCP3911_REG_CONFIG, configreg, 2);
}
static int mcp3911_probe(struct spi_device *spi)
{
struct iio_dev *indio_dev;
struct mcp3911 *adc;
int ret;
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adc));
if (!indio_dev)
return -ENOMEM;
adc = iio_priv(indio_dev);
adc->spi = spi;
adc->vref = devm_regulator_get_optional(&adc->spi->dev, "vref");
if (IS_ERR(adc->vref)) {
if (PTR_ERR(adc->vref) == -ENODEV) {
adc->vref = NULL;
} else {
dev_err(&adc->spi->dev,
"failed to get regulator (%ld)\n",
PTR_ERR(adc->vref));
return PTR_ERR(adc->vref);
}
} else {
ret = regulator_enable(adc->vref);
if (ret)
return ret;
}
adc->clki = devm_clk_get(&adc->spi->dev, NULL);
if (IS_ERR(adc->clki)) {
if (PTR_ERR(adc->clki) == -ENOENT) {
adc->clki = NULL;
} else {
dev_err(&adc->spi->dev,
"failed to get adc clk (%ld)\n",
PTR_ERR(adc->clki));
ret = PTR_ERR(adc->clki);
goto reg_disable;
}
} else {
ret = clk_prepare_enable(adc->clki);
if (ret < 0) {
dev_err(&adc->spi->dev,
"Failed to enable clki: %d\n", ret);
goto reg_disable;
}
}
ret = mcp3911_config(adc, spi->dev.of_node);
if (ret)
goto clk_disable;
indio_dev->dev.parent = &spi->dev;
indio_dev->dev.of_node = spi->dev.of_node;
indio_dev->name = spi_get_device_id(spi)->name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &mcp3911_info;
spi_set_drvdata(spi, indio_dev);
indio_dev->channels = mcp3911_channels;
indio_dev->num_channels = ARRAY_SIZE(mcp3911_channels);
mutex_init(&adc->lock);
ret = iio_device_register(indio_dev);
if (ret)
goto clk_disable;
return ret;
clk_disable:
clk_disable_unprepare(adc->clki);
reg_disable:
if (adc->vref)
regulator_disable(adc->vref);
return ret;
}
static int mcp3911_remove(struct spi_device *spi)
{
struct iio_dev *indio_dev = spi_get_drvdata(spi);
struct mcp3911 *adc = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
clk_disable_unprepare(adc->clki);
if (adc->vref)
regulator_disable(adc->vref);
return 0;
}
static const struct of_device_id mcp3911_dt_ids[] = {
{ .compatible = "microchip,mcp3911" },
{ }
};
MODULE_DEVICE_TABLE(of, mcp3911_dt_ids);
static const struct spi_device_id mcp3911_id[] = {
{ "mcp3911", 0 },
{ }
};
MODULE_DEVICE_TABLE(spi, mcp3911_id);
static struct spi_driver mcp3911_driver = {
.driver = {
.name = "mcp3911",
.of_match_table = mcp3911_dt_ids,
},
.probe = mcp3911_probe,
.remove = mcp3911_remove,
.id_table = mcp3911_id,
};
module_spi_driver(mcp3911_driver);
MODULE_AUTHOR("Marcus Folkesson <marcus.folkesson@gmail.com>");
MODULE_AUTHOR("Kent Gustavsson <kent@minoris.se>");
MODULE_DESCRIPTION("Microchip Technology MCP3911");
MODULE_LICENSE("GPL v2");
drivers/iio/adc/qcom-pm8xxx-xoadc.c
View file @ 4b55dce8
......@@ -708,8 +708,8 @@ static int pm8xxx_of_xlate(struct iio_dev *indio_dev,
* mux.
*/
if (iiospec->args_count != 2) {
dev_err(&indio_dev->dev, "wrong number of arguments for %s need 2 got %d\n",
iiospec->np->name,
dev_err(&indio_dev->dev, "wrong number of arguments for %pOFn need 2 got %d\n",
iiospec->np,
iiospec->args_count);
return -EINVAL;
}
......
drivers/iio/adc/qcom-spmi-adc5.c 0 → 100644
View file @ 4b55dce8
This diff is collapsed.
drivers/iio/adc/qcom-vadc-common.c
View file @ 4b55dce8
......@@ -47,8 +47,79 @@ static const struct vadc_map_pt adcmap_100k_104ef_104fb[] = {
{44, 125}
};
/*
* Voltage to temperature table for 100k pull up for NTCG104EF104 with
* 1.875V reference.
*/
static const struct vadc_map_pt adcmap_100k_104ef_104fb_1875_vref[] = {
{ 1831, -40000 },
{ 1814, -35000 },
{ 1791, -30000 },
{ 1761, -25000 },
{ 1723, -20000 },
{ 1675, -15000 },
{ 1616, -10000 },
{ 1545, -5000 },
{ 1463, 0 },
{ 1370, 5000 },
{ 1268, 10000 },
{ 1160, 15000 },
{ 1049, 20000 },
{ 937, 25000 },
{ 828, 30000 },
{ 726, 35000 },
{ 630, 40000 },
{ 544, 45000 },
{ 467, 50000 },
{ 399, 55000 },
{ 340, 60000 },
{ 290, 65000 },
{ 247, 70000 },
{ 209, 75000 },
{ 179, 80000 },
{ 153, 85000 },
{ 130, 90000 },
{ 112, 95000 },
{ 96, 100000 },
{ 82, 105000 },
{ 71, 110000 },
{ 62, 115000 },
{ 53, 120000 },
{ 46, 125000 },
};
static int qcom_vadc_scale_hw_calib_volt(
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_uv);
static int qcom_vadc_scale_hw_calib_therm(
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_mdec);
static int qcom_vadc_scale_hw_smb_temp(
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_mdec);
static int qcom_vadc_scale_hw_chg5_temp(
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_mdec);
static int qcom_vadc_scale_hw_calib_die_temp(
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_mdec);
static struct qcom_adc5_scale_type scale_adc5_fn[] = {
[SCALE_HW_CALIB_DEFAULT] = {qcom_vadc_scale_hw_calib_volt},
[SCALE_HW_CALIB_THERM_100K_PULLUP] = {qcom_vadc_scale_hw_calib_therm},
[SCALE_HW_CALIB_XOTHERM] = {qcom_vadc_scale_hw_calib_therm},
[SCALE_HW_CALIB_PMIC_THERM] = {qcom_vadc_scale_hw_calib_die_temp},
[SCALE_HW_CALIB_PM5_CHG_TEMP] = {qcom_vadc_scale_hw_chg5_temp},
[SCALE_HW_CALIB_PM5_SMB_TEMP] = {qcom_vadc_scale_hw_smb_temp},
};
static int qcom_vadc_map_voltage_temp(const struct vadc_map_pt *pts,
u32 tablesize, s32 input, s64 *output)
u32 tablesize, s32 input, int *output)
{
bool descending = 1;
u32 i = 0;
......@@ -128,7 +199,7 @@ static int qcom_vadc_scale_therm(const struct vadc_linear_graph *calib_graph,
bool absolute, u16 adc_code,
int *result_mdec)
{
s64 voltage = 0, result = 0;
s64 voltage = 0;
int ret;
qcom_vadc_scale_calib(calib_graph, adc_code, absolute, &voltage);
......@@ -138,12 +209,11 @@ static int qcom_vadc_scale_therm(const struct vadc_linear_graph *calib_graph,
ret = qcom_vadc_map_voltage_temp(adcmap_100k_104ef_104fb,
ARRAY_SIZE(adcmap_100k_104ef_104fb),
voltage, &result);
voltage, result_mdec);
if (ret)
return ret;
result *= 1000;
*result_mdec = result;
*result_mdec *= 1000;
return 0;
}
......@@ -191,6 +261,99 @@ static int qcom_vadc_scale_chg_temp(const struct vadc_linear_graph *calib_graph,
return 0;
}
static int qcom_vadc_scale_code_voltage_factor(u16 adc_code,
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
unsigned int factor)
{
s64 voltage, temp, adc_vdd_ref_mv = 1875;
/*
* The normal data range is between 0V to 1.875V. On cases where
* we read low voltage values, the ADC code can go beyond the
* range and the scale result is incorrect so we clamp the values
* for the cases where the code represents a value below 0V
*/
if (adc_code > VADC5_MAX_CODE)
adc_code = 0;
/* (ADC code * vref_vadc (1.875V)) / full_scale_code */
voltage = (s64) adc_code * adc_vdd_ref_mv * 1000;
voltage = div64_s64(voltage, data->full_scale_code_volt);
if (voltage > 0) {
voltage *= prescale->den;
temp = prescale->num * factor;
voltage = div64_s64(voltage, temp);
} else {
voltage = 0;
}
return (int) voltage;
}
static int qcom_vadc_scale_hw_calib_volt(
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_uv)
{
*result_uv = qcom_vadc_scale_code_voltage_factor(adc_code,
prescale, data, 1);
return 0;
}
static int qcom_vadc_scale_hw_calib_therm(
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_mdec)
{
int voltage;
voltage = qcom_vadc_scale_code_voltage_factor(adc_code,
prescale, data, 1000);
/* Map voltage to temperature from look-up table */
return qcom_vadc_map_voltage_temp(adcmap_100k_104ef_104fb_1875_vref,
ARRAY_SIZE(adcmap_100k_104ef_104fb_1875_vref),
voltage, result_mdec);
}
static int qcom_vadc_scale_hw_calib_die_temp(
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_mdec)
{
*result_mdec = qcom_vadc_scale_code_voltage_factor(adc_code,
prescale, data, 2);
*result_mdec -= KELVINMIL_CELSIUSMIL;
return 0;
}
static int qcom_vadc_scale_hw_smb_temp(
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_mdec)
{
*result_mdec = qcom_vadc_scale_code_voltage_factor(adc_code * 100,
prescale, data, PMIC5_SMB_TEMP_SCALE_FACTOR);
*result_mdec = PMIC5_SMB_TEMP_CONSTANT - *result_mdec;
return 0;
}
static int qcom_vadc_scale_hw_chg5_temp(
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_mdec)
{
*result_mdec = qcom_vadc_scale_code_voltage_factor(adc_code,
prescale, data, 4);
*result_mdec = PMIC5_CHG_TEMP_SCALE_FACTOR - *result_mdec;
return 0;
}
int qcom_vadc_scale(enum vadc_scale_fn_type scaletype,
const struct vadc_linear_graph *calib_graph,
const struct vadc_prescale_ratio *prescale,
......@@ -221,6 +384,22 @@ int qcom_vadc_scale(enum vadc_scale_fn_type scaletype,
}
EXPORT_SYMBOL(qcom_vadc_scale);
int qcom_adc5_hw_scale(enum vadc_scale_fn_type scaletype,
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result)
{
if (!(scaletype >= SCALE_HW_CALIB_DEFAULT &&
scaletype < SCALE_HW_CALIB_INVALID)) {
pr_err("Invalid scale type %d\n", scaletype);
return -EINVAL;
}
return scale_adc5_fn[scaletype].scale_fn(prescale, data,
adc_code, result);
}
EXPORT_SYMBOL(qcom_adc5_hw_scale);
int qcom_vadc_decimation_from_dt(u32 value)
{
if (!is_power_of_2(value) || value < VADC_DECIMATION_MIN ||
......
drivers/iio/adc/qcom-vadc-common.h
View file @ 4b55dce8
......@@ -25,15 +25,31 @@
#define VADC_DECIMATION_MIN 512
#define VADC_DECIMATION_MAX 4096
#define ADC5_DEF_VBAT_PRESCALING 1 /* 1:3 */
#define ADC5_DECIMATION_SHORT 250
#define ADC5_DECIMATION_MEDIUM 420
#define ADC5_DECIMATION_LONG 840
/* Default decimation - 1024 for rev2, 840 for pmic5 */
#define ADC5_DECIMATION_DEFAULT 2
#define ADC5_DECIMATION_SAMPLES_MAX 3
#define VADC_HW_SETTLE_DELAY_MAX 10000
#define VADC_HW_SETTLE_SAMPLES_MAX 16
#define VADC_AVG_SAMPLES_MAX 512
#define ADC5_AVG_SAMPLES_MAX 16
#define KELVINMIL_CELSIUSMIL 273150
#define PMIC5_CHG_TEMP_SCALE_FACTOR 377500
#define PMIC5_SMB_TEMP_CONSTANT 419400
#define PMIC5_SMB_TEMP_SCALE_FACTOR 356
#define PMI_CHG_SCALE_1 -138890
#define PMI_CHG_SCALE_2 391750000000LL
#define VADC5_MAX_CODE 0x7fff
#define ADC5_FULL_SCALE_CODE 0x70e4
#define ADC5_USR_DATA_CHECK 0x8000
/**
* struct vadc_map_pt - Map the graph representation for ADC channel
* @x: Represent the ADC digitized code.
......@@ -89,6 +105,18 @@ struct vadc_prescale_ratio {
* SCALE_PMIC_THERM: Returns result in milli degree's Centigrade.
* SCALE_XOTHERM: Returns XO thermistor voltage in millidegC.
* SCALE_PMI_CHG_TEMP: Conversion for PMI CHG temp
* SCALE_HW_CALIB_DEFAULT: Default scaling to convert raw adc code to
* voltage (uV) with hardware applied offset/slope values to adc code.
* SCALE_HW_CALIB_THERM_100K_PULLUP: Returns temperature in millidegC using
* lookup table. The hardware applies offset/slope to adc code.
* SCALE_HW_CALIB_XOTHERM: Returns XO thermistor voltage in millidegC using
* 100k pullup. The hardware applies offset/slope to adc code.
* SCALE_HW_CALIB_PMIC_THERM: Returns result in milli degree's Centigrade.
* The hardware applies offset/slope to adc code.
* SCALE_HW_CALIB_PM5_CHG_TEMP: Returns result in millidegrees for PMIC5
* charger temperature.
* SCALE_HW_CALIB_PM5_SMB_TEMP: Returns result in millidegrees for PMIC5
* SMB1390 temperature.
*/
enum vadc_scale_fn_type {
SCALE_DEFAULT = 0,
......@@ -96,6 +124,22 @@ enum vadc_scale_fn_type {
SCALE_PMIC_THERM,
SCALE_XOTHERM,
SCALE_PMI_CHG_TEMP,
SCALE_HW_CALIB_DEFAULT,
SCALE_HW_CALIB_THERM_100K_PULLUP,
SCALE_HW_CALIB_XOTHERM,
SCALE_HW_CALIB_PMIC_THERM,
SCALE_HW_CALIB_PM5_CHG_TEMP,
SCALE_HW_CALIB_PM5_SMB_TEMP,
SCALE_HW_CALIB_INVALID,
};
struct adc5_data {
const u32 full_scale_code_volt;
const u32 full_scale_code_cur;
const struct adc5_channels *adc_chans;
unsigned int *decimation;
unsigned int *hw_settle_1;
unsigned int *hw_settle_2;
};
int qcom_vadc_scale(enum vadc_scale_fn_type scaletype,
......@@ -104,6 +148,16 @@ int qcom_vadc_scale(enum vadc_scale_fn_type scaletype,
bool absolute,
u16 adc_code, int *result_mdec);
struct qcom_adc5_scale_type {
int (*scale_fn)(const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data, u16 adc_code, int *result);
};
int qcom_adc5_hw_scale(enum vadc_scale_fn_type scaletype,
const struct vadc_prescale_ratio *prescale,
const struct adc5_data *data,
u16 adc_code, int *result_mdec);
int qcom_vadc_decimation_from_dt(u32 value);
#endif /* QCOM_VADC_COMMON_H */
drivers/iio/adc/rcar-gyroadc.c
View file @ 4b55dce8
......@@ -343,8 +343,8 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
for_each_child_of_node(np, child) {
of_id = of_match_node(rcar_gyroadc_child_match, child);
if (!of_id) {
dev_err(dev, "Ignoring unsupported ADC \"%s\".",
child->name);
dev_err(dev, "Ignoring unsupported ADC \"%pOFn\".",
child);
continue;
}
......@@ -381,16 +381,16 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
ret = of_property_read_u32(child, "reg", &reg);
if (ret) {
dev_err(dev,
"Failed to get child reg property of ADC \"%s\".\n",
child->name);
"Failed to get child reg property of ADC \"%pOFn\".\n",
child);
return ret;
}
/* Channel number is too high. */
if (reg >= num_channels) {
dev_err(dev,
"Only %i channels supported with %s, but reg = <%i>.\n",
num_channels, child->name, reg);
"Only %i channels supported with %pOFn, but reg = <%i>.\n",
num_channels, child, reg);
return ret;
}
}
......
drivers/iio/adc/sc27xx_adc.c
View file @ 4b55dce8
......@@ -5,10 +5,12 @@
#include <linux/iio/iio.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/nvmem-consumer.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
/* PMIC global registers definition */
#define SC27XX_MODULE_EN 0xc08
......@@ -87,16 +89,73 @@ struct sc27xx_adc_linear_graph {
* should use the small-scale graph, and if more than 1.2v, we should use the
* big-scale graph.
*/
static const struct sc27xx_adc_linear_graph big_scale_graph = {
static struct sc27xx_adc_linear_graph big_scale_graph = {
4200, 3310,
3600, 2832,
};
static const struct sc27xx_adc_linear_graph small_scale_graph = {
static struct sc27xx_adc_linear_graph small_scale_graph = {
1000, 3413,
100, 341,
};
static const struct sc27xx_adc_linear_graph big_scale_graph_calib = {
4200, 856,
3600, 733,
};
static const struct sc27xx_adc_linear_graph small_scale_graph_calib = {
1000, 833,
100, 80,
};
static int sc27xx_adc_get_calib_data(u32 calib_data, int calib_adc)
{
return ((calib_data & 0xff) + calib_adc - 128) * 4;
}
static int sc27xx_adc_scale_calibration(struct sc27xx_adc_data *data,
bool big_scale)
{
const struct sc27xx_adc_linear_graph *calib_graph;
struct sc27xx_adc_linear_graph *graph;
struct nvmem_cell *cell;
const char *cell_name;
u32 calib_data = 0;
void *buf;
size_t len;
if (big_scale) {
calib_graph = &big_scale_graph_calib;
graph = &big_scale_graph;
cell_name = "big_scale_calib";
} else {
calib_graph = &small_scale_graph_calib;
graph = &small_scale_graph;
cell_name = "small_scale_calib";
}
cell = nvmem_cell_get(data->dev, cell_name);
if (IS_ERR(cell))
return PTR_ERR(cell);
buf = nvmem_cell_read(cell, &len);
nvmem_cell_put(cell);
if (IS_ERR(buf))
return PTR_ERR(buf);
memcpy(&calib_data, buf, min(len, sizeof(u32)));
/* Only need to calibrate the adc values in the linear graph. */
graph->adc0 = sc27xx_adc_get_calib_data(calib_data, calib_graph->adc0);
graph->adc1 = sc27xx_adc_get_calib_data(calib_data >> 8,
calib_graph->adc1);
kfree(buf);
return 0;
}
static int sc27xx_adc_get_ratio(int channel, int scale)
{
switch (channel) {
......@@ -209,7 +268,7 @@ static void sc27xx_adc_volt_ratio(struct sc27xx_adc_data *data,
*div_denominator = ratio & SC27XX_RATIO_DENOMINATOR_MASK;
}
static int sc27xx_adc_to_volt(const struct sc27xx_adc_linear_graph *graph,
static int sc27xx_adc_to_volt(struct sc27xx_adc_linear_graph *graph,
int raw_adc)
{
int tmp;
......@@ -273,6 +332,17 @@ static int sc27xx_adc_read_raw(struct iio_dev *indio_dev,
int ret, tmp;
switch (mask) {
case IIO_CHAN_INFO_RAW:
mutex_lock(&indio_dev->mlock);
ret = sc27xx_adc_read(data, chan->channel, scale, &tmp);
mutex_unlock(&indio_dev->mlock);
if (ret)
return ret;
*val = tmp;
return IIO_VAL_INT;
case IIO_CHAN_INFO_PROCESSED:
mutex_lock(&indio_dev->mlock);
ret = sc27xx_adc_read_processed(data, chan->channel, scale,
......@@ -315,48 +385,47 @@ static const struct iio_info sc27xx_info = {
.write_raw = &sc27xx_adc_write_raw,
};
#define SC27XX_ADC_CHANNEL(index) { \
#define SC27XX_ADC_CHANNEL(index, mask) { \
.type = IIO_VOLTAGE, \
.channel = index, \
.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) | \
BIT(IIO_CHAN_INFO_SCALE), \
.info_mask_separate = mask | BIT(IIO_CHAN_INFO_SCALE), \
.datasheet_name = "CH##index", \
.indexed = 1, \
}
static const struct iio_chan_spec sc27xx_channels[] = {
SC27XX_ADC_CHANNEL(0),
SC27XX_ADC_CHANNEL(1),
SC27XX_ADC_CHANNEL(2),
SC27XX_ADC_CHANNEL(3),
SC27XX_ADC_CHANNEL(4),
SC27XX_ADC_CHANNEL(5),
SC27XX_ADC_CHANNEL(6),
SC27XX_ADC_CHANNEL(7),
SC27XX_ADC_CHANNEL(8),
SC27XX_ADC_CHANNEL(9),
SC27XX_ADC_CHANNEL(10),
SC27XX_ADC_CHANNEL(11),
SC27XX_ADC_CHANNEL(12),
SC27XX_ADC_CHANNEL(13),
SC27XX_ADC_CHANNEL(14),
SC27XX_ADC_CHANNEL(15),
SC27XX_ADC_CHANNEL(16),
SC27XX_ADC_CHANNEL(17),
SC27XX_ADC_CHANNEL(18),
SC27XX_ADC_CHANNEL(19),
SC27XX_ADC_CHANNEL(20),
SC27XX_ADC_CHANNEL(21),
SC27XX_ADC_CHANNEL(22),
SC27XX_ADC_CHANNEL(23),
SC27XX_ADC_CHANNEL(24),
SC27XX_ADC_CHANNEL(25),
SC27XX_ADC_CHANNEL(26),
SC27XX_ADC_CHANNEL(27),
SC27XX_ADC_CHANNEL(28),
SC27XX_ADC_CHANNEL(29),
SC27XX_ADC_CHANNEL(30),
SC27XX_ADC_CHANNEL(31),
SC27XX_ADC_CHANNEL(0, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(1, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(2, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(3, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(4, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(5, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(6, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(7, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(8, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(9, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(10, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(11, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(12, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(13, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(14, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(15, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(16, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(17, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(18, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(19, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(20, BIT(IIO_CHAN_INFO_RAW)),
SC27XX_ADC_CHANNEL(21, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(22, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(23, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(24, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(25, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(26, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(27, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(28, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(29, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(30, BIT(IIO_CHAN_INFO_PROCESSED)),
SC27XX_ADC_CHANNEL(31, BIT(IIO_CHAN_INFO_PROCESSED)),
};
static int sc27xx_adc_enable(struct sc27xx_adc_data *data)
......@@ -380,6 +449,15 @@ static int sc27xx_adc_enable(struct sc27xx_adc_data *data)
if (ret)
goto disable_clk;
/* ADC channel scales' calibration from nvmem device */
ret = sc27xx_adc_scale_calibration(data, true);
if (ret)
goto disable_clk;
ret = sc27xx_adc_scale_calibration(data, false);
if (ret)
goto disable_clk;
return 0;
disable_clk:
......
drivers/iio/amplifiers/ad8366.c
View file @ 4b55dce8
......@@ -209,6 +209,6 @@ static struct spi_driver ad8366_driver = {
module_spi_driver(ad8366_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD8366 VGA");
MODULE_LICENSE("GPL v2");
drivers/iio/chemical/bme680.h
View file @ 4b55dce8
......@@ -4,10 +4,10 @@
#define BME680_REG_CHIP_I2C_ID 0xD0
#define BME680_REG_CHIP_SPI_ID 0x50
#define BME680_CHIP_ID_VAL 0x61
#define BME680_CHIP_ID_VAL 0x61
#define BME680_REG_SOFT_RESET_I2C 0xE0
#define BME680_REG_SOFT_RESET_SPI 0x60
#define BME680_CMD_SOFTRESET 0xB6
#define BME680_CMD_SOFTRESET 0xB6
#define BME680_REG_STATUS 0x73
#define BME680_SPI_MEM_PAGE_BIT BIT(4)
#define BME680_SPI_MEM_PAGE_1_VAL 1
......@@ -18,6 +18,7 @@
#define BME680_REG_GAS_MSB 0x2A
#define BME680_REG_GAS_R_LSB 0x2B
#define BME680_GAS_STAB_BIT BIT(4)
#define BME680_GAS_RANGE_MASK GENMASK(3, 0)
#define BME680_REG_CTRL_HUMIDITY 0x72
#define BME680_OSRS_HUMIDITY_MASK GENMASK(2, 0)
......@@ -26,9 +27,8 @@
#define BME680_OSRS_TEMP_MASK GENMASK(7, 5)
#define BME680_OSRS_PRESS_MASK GENMASK(4, 2)
#define BME680_MODE_MASK GENMASK(1, 0)
#define BME680_MODE_FORCED 1
#define BME680_MODE_SLEEP 0
#define BME680_MODE_FORCED 1
#define BME680_MODE_SLEEP 0
#define BME680_REG_CONFIG 0x75
#define BME680_FILTER_MASK GENMASK(4, 2)
......@@ -39,24 +39,21 @@
#define BME680_MAX_OVERFLOW_VAL 0x40000000
#define BME680_HUM_REG_SHIFT_VAL 4
#define BME680_BIT_H1_DATA_MSK 0x0F
#define BME680_BIT_H1_DATA_MASK GENMASK(3, 0)
#define BME680_REG_RES_HEAT_RANGE 0x02
#define BME680_RHRANGE_MSK 0x30
#define BME680_RHRANGE_MASK GENMASK(5, 4)
#define BME680_REG_RES_HEAT_VAL 0x00
#define BME680_REG_RANGE_SW_ERR 0x04
#define BME680_RSERROR_MSK 0xF0
#define BME680_RSERROR_MASK GENMASK(7, 4)
#define BME680_REG_RES_HEAT_0 0x5A
#define BME680_REG_GAS_WAIT_0 0x64
#define BME680_GAS_RANGE_MASK 0x0F
#define BME680_ADC_GAS_RES_SHIFT 6
#define BME680_AMB_TEMP 25
#define BME680_REG_CTRL_GAS_1 0x71
#define BME680_RUN_GAS_MASK BIT(4)
#define BME680_NB_CONV_MASK GENMASK(3, 0)
#define BME680_RUN_GAS_EN_BIT BIT(4)
#define BME680_NB_CONV_0_VAL 0
#define BME680_REG_MEAS_STAT_0 0x1D
#define BME680_GAS_MEAS_BIT BIT(6)
......
drivers/iio/chemical/bme680_core.c
View file @ 4b55dce8
This diff is collapsed.
drivers/iio/dac/Kconfig
View file @ 4b55dce8
......@@ -120,6 +120,16 @@ config AD5624R_SPI
Say yes here to build support for Analog Devices AD5624R, AD5644R and
AD5664R converters (DAC). This driver uses the common SPI interface.
config LTC1660
tristate "Linear Technology LTC1660/LTC1665 DAC SPI driver"
depends on SPI
help
Say yes here to build support for Linear Technology
LTC1660 and LTC1665 Digital to Analog Converters.
To compile this driver as a module, choose M here: the
module will be called ltc1660.
config LTC2632
tristate "Linear Technology LTC2632-12/10/8 DAC spi driver"
depends on SPI
......
drivers/iio/dac/Makefile
View file @ 4b55dce8
......@@ -29,6 +29,7 @@ obj-$(CONFIG_CIO_DAC) += cio-dac.o
obj-$(CONFIG_DPOT_DAC) += dpot-dac.o
obj-$(CONFIG_DS4424) += ds4424.o
obj-$(CONFIG_LPC18XX_DAC) += lpc18xx_dac.o
obj-$(CONFIG_LTC1660) += ltc1660.o
obj-$(CONFIG_LTC2632) += ltc2632.o
obj-$(CONFIG_M62332) += m62332.o
obj-$(CONFIG_MAX517) += max517.o
......
drivers/iio/dac/ad5446.c
View file @ 4b55dce8
......@@ -628,6 +628,6 @@ static void __exit ad5446_exit(void)
}
module_exit(ad5446_exit);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD5444/AD5446 DAC");
MODULE_LICENSE("GPL v2");
drivers/iio/dac/ad5504.c
View file @ 4b55dce8
......@@ -369,6 +369,6 @@ static struct spi_driver ad5504_driver = {
};
module_spi_driver(ad5504_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD5501/AD5501 DAC");
MODULE_LICENSE("GPL v2");
drivers/iio/dac/ad5686.c
View file @ 4b55dce8
......@@ -470,6 +470,6 @@ int ad5686_remove(struct device *dev)
}
EXPORT_SYMBOL_GPL(ad5686_remove);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD5686/85/84 DAC");
MODULE_LICENSE("GPL v2");
drivers/iio/dac/ad5758.c
View file @ 4b55dce8
......@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/property.h>
#include <linux/spi/spi.h>
#include <linux/gpio/consumer.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
......@@ -108,6 +109,7 @@ struct ad5758_range {
struct ad5758_state {
struct spi_device *spi;
struct mutex lock;
struct gpio_desc *gpio_reset;
struct ad5758_range out_range;
unsigned int dc_dc_mode;
unsigned int dc_dc_ilim;
......@@ -474,6 +476,21 @@ static int ad5758_internal_buffers_en(struct ad5758_state *st, bool enable)
AD5758_CAL_MEM_UNREFRESHED_MSK);
}
static int ad5758_reset(struct ad5758_state *st)
{
if (st->gpio_reset) {
gpiod_set_value(st->gpio_reset, 0);
usleep_range(100, 1000);
gpiod_set_value(st->gpio_reset, 1);
usleep_range(100, 1000);
return 0;
} else {
/* Perform a software reset */
return ad5758_soft_reset(st);
}
}
static int ad5758_reg_access(struct iio_dev *indio_dev,
unsigned int reg,
unsigned int writeval,
......@@ -768,13 +785,18 @@ static int ad5758_init(struct ad5758_state *st)
{
int regval, ret;
st->gpio_reset = devm_gpiod_get_optional(&st->spi->dev, "reset",
GPIOD_OUT_HIGH);
if (IS_ERR(st->gpio_reset))
return PTR_ERR(st->gpio_reset);
/* Disable CRC checks */
ret = ad5758_crc_disable(st);
if (ret < 0)
return ret;
/* Perform a software reset */
ret = ad5758_soft_reset(st);
/* Perform a reset */
ret = ad5758_reset(st);
if (ret < 0)
return ret;
......
drivers/iio/dac/ad5791.c
View file @ 4b55dce8
......@@ -467,6 +467,6 @@ static struct spi_driver ad5791_driver = {
};
module_spi_driver(ad5791_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD5760/AD5780/AD5781/AD5790/AD5791 DAC");
MODULE_LICENSE("GPL v2");
drivers/iio/dac/dpot-dac.c
View file @ 4b55dce8
// SPDX-License-Identifier: GPL-2.0
/*
* IIO DAC emulation driver using a digital potentiometer
*
* Copyright (C) 2016 Axentia Technologies AB
*
* Author: Peter Rosin <peda@axentia.se>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
......
drivers/iio/dac/ltc1660.c 0 → 100644
View file @ 4b55dce8
// SPDX-License-Identifier: GPL-2.0
/*
* Driver for Linear Technology LTC1665/LTC1660, 8 channels DAC
*
* Copyright (C) 2018 Marcus Folkesson <marcus.folkesson@gmail.com>
*/
#include <linux/bitops.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/regulator/consumer.h>
#include <linux/regmap.h>
#include <linux/spi/spi.h>
#define LTC1660_REG_WAKE 0x0
#define LTC1660_REG_DAC_A 0x1
#define LTC1660_REG_DAC_B 0x2
#define LTC1660_REG_DAC_C 0x3
#define LTC1660_REG_DAC_D 0x4
#define LTC1660_REG_DAC_E 0x5
#define LTC1660_REG_DAC_F 0x6
#define LTC1660_REG_DAC_G 0x7
#define LTC1660_REG_DAC_H 0x8
#define LTC1660_REG_SLEEP 0xe
#define LTC1660_NUM_CHANNELS 8
static const struct regmap_config ltc1660_regmap_config = {
.reg_bits = 4,
.val_bits = 12,
};
enum ltc1660_supported_device_ids {
ID_LTC1660,
ID_LTC1665,
};
struct ltc1660_priv {
struct spi_device *spi;
struct regmap *regmap;
struct regulator *vref_reg;
unsigned int value[LTC1660_NUM_CHANNELS];
unsigned int vref_mv;
};
static int ltc1660_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val,
int *val2,
long mask)
{
struct ltc1660_priv *priv = iio_priv(indio_dev);
switch (mask) {
case IIO_CHAN_INFO_RAW:
*val = priv->value[chan->channel];
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
*val = regulator_get_voltage(priv->vref_reg);
if (*val < 0) {
dev_err(&priv->spi->dev, "failed to read vref regulator: %d\n",
*val);
return *val;
}
/* Convert to mV */
*val /= 1000;
*val2 = chan->scan_type.realbits;
return IIO_VAL_FRACTIONAL_LOG2;
default:
return -EINVAL;
}
}
static int ltc1660_write_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int val,
int val2,
long mask)
{
struct ltc1660_priv *priv = iio_priv(indio_dev);
int ret;
switch (mask) {
case IIO_CHAN_INFO_RAW:
if (val2 != 0)
return -EINVAL;
if (val < 0 || val > GENMASK(chan->scan_type.realbits - 1, 0))
return -EINVAL;
ret = regmap_write(priv->regmap, chan->channel,
(val << chan->scan_type.shift));
if (!ret)
priv->value[chan->channel] = val;
return ret;
default:
return -EINVAL;
}
}
#define LTC1660_CHAN(chan, bits) { \
.type = IIO_VOLTAGE, \
.indexed = 1, \
.output = 1, \
.channel = chan, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
.scan_type = { \
.sign = 'u', \
.realbits = (bits), \
.storagebits = 16, \
.shift = 12 - (bits), \
}, \
}
#define LTC1660_OCTAL_CHANNELS(bits) { \
LTC1660_CHAN(LTC1660_REG_DAC_A, bits), \
LTC1660_CHAN(LTC1660_REG_DAC_B, bits), \
LTC1660_CHAN(LTC1660_REG_DAC_C, bits), \
LTC1660_CHAN(LTC1660_REG_DAC_D, bits), \
LTC1660_CHAN(LTC1660_REG_DAC_E, bits), \
LTC1660_CHAN(LTC1660_REG_DAC_F, bits), \
LTC1660_CHAN(LTC1660_REG_DAC_G, bits), \
LTC1660_CHAN(LTC1660_REG_DAC_H, bits), \
}
static const struct iio_chan_spec ltc1660_channels[][LTC1660_NUM_CHANNELS] = {
[ID_LTC1660] = LTC1660_OCTAL_CHANNELS(10),
[ID_LTC1665] = LTC1660_OCTAL_CHANNELS(8),
};
static const struct iio_info ltc1660_info = {
.read_raw = &ltc1660_read_raw,
.write_raw = &ltc1660_write_raw,
};
static int __maybe_unused ltc1660_suspend(struct device *dev)
{
struct ltc1660_priv *priv = iio_priv(spi_get_drvdata(
to_spi_device(dev)));
return regmap_write(priv->regmap, LTC1660_REG_SLEEP, 0x00);
}
static int __maybe_unused ltc1660_resume(struct device *dev)
{
struct ltc1660_priv *priv = iio_priv(spi_get_drvdata(
to_spi_device(dev)));
return regmap_write(priv->regmap, LTC1660_REG_WAKE, 0x00);
}
static SIMPLE_DEV_PM_OPS(ltc1660_pm_ops, ltc1660_suspend, ltc1660_resume);
static int ltc1660_probe(struct spi_device *spi)
{
struct iio_dev *indio_dev;
struct ltc1660_priv *priv;
const struct spi_device_id *id = spi_get_device_id(spi);
int ret;
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*priv));
if (indio_dev == NULL)
return -ENOMEM;
priv = iio_priv(indio_dev);
priv->regmap = devm_regmap_init_spi(spi, &ltc1660_regmap_config);
if (IS_ERR(priv->regmap)) {
dev_err(&spi->dev, "failed to register spi regmap %ld\n",
PTR_ERR(priv->regmap));
return PTR_ERR(priv->regmap);
}
priv->vref_reg = devm_regulator_get(&spi->dev, "vref");
if (IS_ERR(priv->vref_reg)) {
dev_err(&spi->dev, "vref regulator not specified\n");
return PTR_ERR(priv->vref_reg);
}
ret = regulator_enable(priv->vref_reg);
if (ret) {
dev_err(&spi->dev, "failed to enable vref regulator: %d\n",
ret);
return ret;
}
priv->spi = spi;
spi_set_drvdata(spi, indio_dev);
indio_dev->dev.parent = &spi->dev;
indio_dev->info = &ltc1660_info;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = ltc1660_channels[id->driver_data];
indio_dev->num_channels = LTC1660_NUM_CHANNELS;
indio_dev->name = id->name;
ret = iio_device_register(indio_dev);
if (ret) {
dev_err(&spi->dev, "failed to register iio device: %d\n",
ret);
goto error_disable_reg;
}
return 0;
error_disable_reg:
regulator_disable(priv->vref_reg);
return ret;
}
static int ltc1660_remove(struct spi_device *spi)
{
struct iio_dev *indio_dev = spi_get_drvdata(spi);
struct ltc1660_priv *priv = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
regulator_disable(priv->vref_reg);
return 0;
}
static const struct of_device_id ltc1660_dt_ids[] = {
{ .compatible = "lltc,ltc1660", .data = (void *)ID_LTC1660 },
{ .compatible = "lltc,ltc1665", .data = (void *)ID_LTC1665 },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, ltc1660_dt_ids);
static const struct spi_device_id ltc1660_id[] = {
{"ltc1660", ID_LTC1660},
{"ltc1665", ID_LTC1665},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(spi, ltc1660_id);
static struct spi_driver ltc1660_driver = {
.driver = {
.name = "ltc1660",
.of_match_table = ltc1660_dt_ids,
.pm = &ltc1660_pm_ops,
},
.probe = ltc1660_probe,
.remove = ltc1660_remove,
.id_table = ltc1660_id,
};
module_spi_driver(ltc1660_driver);
MODULE_AUTHOR("Marcus Folkesson <marcus.folkesson@gmail.com>");
MODULE_DESCRIPTION("Linear Technology LTC1660/LTC1665 DAC");
MODULE_LICENSE("GPL v2");
drivers/iio/dac/max517.c
View file @ 4b55dce8
......@@ -113,15 +113,14 @@ static int max517_write_raw(struct iio_dev *indio_dev,
return ret;
}
#ifdef CONFIG_PM_SLEEP
static int max517_suspend(struct device *dev)
static int __maybe_unused max517_suspend(struct device *dev)
{
u8 outbuf = COMMAND_PD;
return i2c_master_send(to_i2c_client(dev), &outbuf, 1);
}
static int max517_resume(struct device *dev)
static int __maybe_unused max517_resume(struct device *dev)
{
u8 outbuf = 0;
......@@ -129,10 +128,6 @@ static int max517_resume(struct device *dev)
}
static SIMPLE_DEV_PM_OPS(max517_pm_ops, max517_suspend, max517_resume);
#define MAX517_PM_OPS (&max517_pm_ops)
#else
#define MAX517_PM_OPS NULL
#endif
static const struct iio_info max517_info = {
.read_raw = max517_read_raw,
......@@ -229,7 +224,7 @@ MODULE_DEVICE_TABLE(i2c, max517_id);
static struct i2c_driver max517_driver = {
.driver = {
.name = MAX517_DRV_NAME,
.pm = MAX517_PM_OPS,
.pm = &max517_pm_ops,
},
.probe = max517_probe,
.remove = max517_remove,
......
drivers/iio/dac/max5821.c
View file @ 4b55dce8
......@@ -270,8 +270,7 @@ static int max5821_write_raw(struct iio_dev *indio_dev,
}
}
#ifdef CONFIG_PM_SLEEP
static int max5821_suspend(struct device *dev)
static int __maybe_unused max5821_suspend(struct device *dev)
{
u8 outbuf[2] = { MAX5821_EXTENDED_COMMAND_MODE,
MAX5821_EXTENDED_DAC_A |
......@@ -281,7 +280,7 @@ static int max5821_suspend(struct device *dev)
return i2c_master_send(to_i2c_client(dev), outbuf, 2);
}
static int max5821_resume(struct device *dev)
static int __maybe_unused max5821_resume(struct device *dev)
{
u8 outbuf[2] = { MAX5821_EXTENDED_COMMAND_MODE,
MAX5821_EXTENDED_DAC_A |
......@@ -292,10 +291,6 @@ static int max5821_resume(struct device *dev)
}
static SIMPLE_DEV_PM_OPS(max5821_pm_ops, max5821_suspend, max5821_resume);
#define MAX5821_PM_OPS (&max5821_pm_ops)
#else
#define MAX5821_PM_OPS NULL
#endif /* CONFIG_PM_SLEEP */
static const struct iio_info max5821_info = {
.read_raw = max5821_read_raw,
......@@ -392,7 +387,7 @@ static struct i2c_driver max5821_driver = {
.driver = {
.name = "max5821",
.of_match_table = max5821_of_match,
.pm = MAX5821_PM_OPS,
.pm = &max5821_pm_ops,
},
.probe = max5821_probe,
.remove = max5821_remove,
......
drivers/iio/dac/mcp4725.c
View file @ 4b55dce8
......@@ -45,7 +45,7 @@ struct mcp4725_data {
struct regulator *vref_reg;
};
static int mcp4725_suspend(struct device *dev)
static int __maybe_unused mcp4725_suspend(struct device *dev)
{
struct mcp4725_data *data = iio_priv(i2c_get_clientdata(
to_i2c_client(dev)));
......@@ -58,7 +58,7 @@ static int mcp4725_suspend(struct device *dev)
return i2c_master_send(data->client, outbuf, 2);
}
static int mcp4725_resume(struct device *dev)
static int __maybe_unused mcp4725_resume(struct device *dev)
{
struct mcp4725_data *data = iio_priv(i2c_get_clientdata(
to_i2c_client(dev)));
......@@ -71,13 +71,7 @@ static int mcp4725_resume(struct device *dev)
return i2c_master_send(data->client, outbuf, 2);
}
#ifdef CONFIG_PM_SLEEP
static SIMPLE_DEV_PM_OPS(mcp4725_pm_ops, mcp4725_suspend, mcp4725_resume);
#define MCP4725_PM_OPS (&mcp4725_pm_ops)
#else
#define MCP4725_PM_OPS NULL
#endif
static ssize_t mcp4725_store_eeprom(struct device *dev,
struct device_attribute *attr, const char *buf, size_t len)
......@@ -547,7 +541,7 @@ static struct i2c_driver mcp4725_driver = {
.driver = {
.name = MCP4725_DRV_NAME,
.of_match_table = of_match_ptr(mcp4725_of_match),
.pm = MCP4725_PM_OPS,
.pm = &mcp4725_pm_ops,
},
.probe = mcp4725_probe,
.remove = mcp4725_remove,
......
drivers/iio/dac/mcp4922.c
View file @ 4b55dce8
......@@ -94,17 +94,22 @@ static int mcp4922_write_raw(struct iio_dev *indio_dev,
long mask)
{
struct mcp4922_state *state = iio_priv(indio_dev);
int ret;
if (val2 != 0)
return -EINVAL;
switch (mask) {
case IIO_CHAN_INFO_RAW:
if (val > GENMASK(chan->scan_type.realbits-1, 0))
if (val < 0 || val > GENMASK(chan->scan_type.realbits - 1, 0))
return -EINVAL;
val <<= chan->scan_type.shift;
state->value[chan->channel] = val;
return mcp4922_spi_write(state, chan->channel, val);
ret = mcp4922_spi_write(state, chan->channel, val);
if (!ret)
state->value[chan->channel] = val;
return ret;
default:
return -EINVAL;
}
......
drivers/iio/dac/ti-dac5571.c
View file @ 4b55dce8
......@@ -421,6 +421,7 @@ MODULE_DEVICE_TABLE(i2c, dac5571_id);
static struct i2c_driver dac5571_driver = {
.driver = {
.name = "ti-dac5571",
.of_match_table = of_match_ptr(dac5571_of_id),
},
.probe = dac5571_probe,
.remove = dac5571_remove,
......
drivers/iio/frequency/ad9523.c
View file @ 4b55dce8
......@@ -1078,6 +1078,6 @@ static struct spi_driver ad9523_driver = {
};
module_spi_driver(ad9523_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("Analog Devices AD9523 CLOCKDIST/PLL");
MODULE_LICENSE("GPL v2");
drivers/iio/frequency/adf4350.c
View file @ 4b55dce8
......@@ -388,7 +388,7 @@ static struct adf4350_platform_data *adf4350_parse_dt(struct device *dev)
if (!pdata)
return NULL;
strncpy(&pdata->name[0], np->name, SPI_NAME_SIZE - 1);
snprintf(&pdata->name[0], SPI_NAME_SIZE - 1, "%pOFn", np);
tmp = 10000;
of_property_read_u32(np, "adi,channel-spacing", &tmp);
......
drivers/iio/health/max30102.c
View file @ 4b55dce8
......@@ -282,9 +282,11 @@ static int max30102_read_measurement(struct max30102_data *data,
switch (measurements) {
case 3:
MAX30102_COPY_DATA(2);
case 2: /* fall-through */
/* fall through */
case 2:
MAX30102_COPY_DATA(1);
case 1: /* fall-through */
/* fall through */
case 1:
MAX30102_COPY_DATA(0);
break;
default:
......
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
View file @ 4b55dce8
......@@ -23,6 +23,7 @@
#include <linux/iio/iio.h>
#include <linux/acpi.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include "inv_mpu_iio.h"
/*
......@@ -926,6 +927,39 @@ static int inv_check_and_setup_chip(struct inv_mpu6050_state *st)
return result;
}
static int inv_mpu_core_enable_regulator(struct inv_mpu6050_state *st)
{
int result;
result = regulator_enable(st->vddio_supply);
if (result) {
dev_err(regmap_get_device(st->map),
"Failed to enable regulator: %d\n", result);
} else {
/* Give the device a little bit of time to start up. */
usleep_range(35000, 70000);
}
return result;
}
static int inv_mpu_core_disable_regulator(struct inv_mpu6050_state *st)
{
int result;
result = regulator_disable(st->vddio_supply);
if (result)
dev_err(regmap_get_device(st->map),
"Failed to disable regulator: %d\n", result);
return result;
}
static void inv_mpu_core_disable_regulator_action(void *_data)
{
inv_mpu_core_disable_regulator(_data);
}
int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
int (*inv_mpu_bus_setup)(struct iio_dev *), int chip_type)
{
......@@ -992,6 +1026,28 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
return -EINVAL;
}
st->vddio_supply = devm_regulator_get(dev, "vddio");
if (IS_ERR(st->vddio_supply)) {
if (PTR_ERR(st->vddio_supply) != -EPROBE_DEFER)
dev_err(dev, "Failed to get vddio regulator %d\n",
(int)PTR_ERR(st->vddio_supply));
return PTR_ERR(st->vddio_supply);
}
result = inv_mpu_core_enable_regulator(st);
if (result)
return result;
result = devm_add_action(dev, inv_mpu_core_disable_regulator_action,
st);
if (result) {
inv_mpu_core_disable_regulator_action(st);
dev_err(dev, "Failed to setup regulator cleanup action %d\n",
result);
return result;
}
/* power is turned on inside check chip type*/
result = inv_check_and_setup_chip(st);
if (result)
......@@ -1051,7 +1107,12 @@ static int inv_mpu_resume(struct device *dev)
int result;
mutex_lock(&st->lock);
result = inv_mpu_core_enable_regulator(st);
if (result)
goto out_unlock;
result = inv_mpu6050_set_power_itg(st, true);
out_unlock:
mutex_unlock(&st->lock);
return result;
......@@ -1064,6 +1125,7 @@ static int inv_mpu_suspend(struct device *dev)
mutex_lock(&st->lock);
result = inv_mpu6050_set_power_itg(st, false);
inv_mpu_core_disable_regulator(st);
mutex_unlock(&st->lock);
return result;
......
drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
View file @ 4b55dce8
......@@ -129,6 +129,7 @@ struct inv_mpu6050_hw {
* @chip_period: chip internal period estimation (~1kHz).
* @it_timestamp: timestamp from previous interrupt.
* @data_timestamp: timestamp for next data sample.
* @vddio_supply voltage regulator for the chip.
*/
struct inv_mpu6050_state {
struct mutex lock;
......@@ -149,6 +150,7 @@ struct inv_mpu6050_state {
s64 chip_period;
s64 it_timestamp;
s64 data_timestamp;
struct regulator *vddio_supply;
};
/*register and associated bit definition*/
......
drivers/iio/imu/st_lsm6dsx/Kconfig
View file @ 4b55dce8
......@@ -9,7 +9,7 @@ config IIO_ST_LSM6DSX
help
Say yes here to build support for STMicroelectronics LSM6DSx imu
sensor. Supported devices: lsm6ds3, lsm6ds3h, lsm6dsl, lsm6dsm,
ism330dlc
ism330dlc, lsm6dso
To compile this driver as a module, choose M here: the module
will be called st_lsm6dsx.
......
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
View file @ 4b55dce8
......@@ -19,6 +19,7 @@
#define ST_LSM6DSL_DEV_NAME "lsm6dsl"
#define ST_LSM6DSM_DEV_NAME "lsm6dsm"
#define ST_ISM330DLC_DEV_NAME "ism330dlc"
#define ST_LSM6DSO_DEV_NAME "lsm6dso"
enum st_lsm6dsx_hw_id {
ST_LSM6DS3_ID,
......@@ -26,14 +27,20 @@ enum st_lsm6dsx_hw_id {
ST_LSM6DSL_ID,
ST_LSM6DSM_ID,
ST_ISM330DLC_ID,
ST_LSM6DSO_ID,
ST_LSM6DSX_MAX_ID,
};
#define ST_LSM6DSX_BUFF_SIZE 400
#define ST_LSM6DSX_BUFF_SIZE 512
#define ST_LSM6DSX_CHAN_SIZE 2
#define ST_LSM6DSX_SAMPLE_SIZE 6
#define ST_LSM6DSX_TAG_SIZE 1
#define ST_LSM6DSX_TAGGED_SAMPLE_SIZE (ST_LSM6DSX_SAMPLE_SIZE + \
ST_LSM6DSX_TAG_SIZE)
#define ST_LSM6DSX_MAX_WORD_LEN ((32 / ST_LSM6DSX_SAMPLE_SIZE) * \
ST_LSM6DSX_SAMPLE_SIZE)
#define ST_LSM6DSX_MAX_TAGGED_WORD_LEN ((32 / ST_LSM6DSX_TAGGED_SAMPLE_SIZE) \
* ST_LSM6DSX_TAGGED_SAMPLE_SIZE)
#define ST_LSM6DSX_SHIFT_VAL(val, mask) (((val) << __ffs(mask)) & (mask))
struct st_lsm6dsx_reg {
......@@ -41,13 +48,17 @@ struct st_lsm6dsx_reg {
u8 mask;
};
struct st_lsm6dsx_hw;
/**
* struct st_lsm6dsx_fifo_ops - ST IMU FIFO settings
* @read_fifo: Read FIFO callback.
* @fifo_th: FIFO threshold register info (addr + mask).
* @fifo_diff: FIFO diff status register info (addr + mask).
* @th_wl: FIFO threshold word length.
*/
struct st_lsm6dsx_fifo_ops {
int (*read_fifo)(struct st_lsm6dsx_hw *hw);
struct {
u8 addr;
u16 mask;
......@@ -79,6 +90,7 @@ struct st_lsm6dsx_hw_ts_settings {
* @max_fifo_size: Sensor max fifo length in FIFO words.
* @id: List of hw id supported by the driver configuration.
* @decimator: List of decimator register info (addr + mask).
* @batch: List of FIFO batching register info (addr + mask).
* @fifo_ops: Sensor hw FIFO parameters.
* @ts_settings: Hw timer related settings.
*/
......@@ -87,6 +99,7 @@ struct st_lsm6dsx_settings {
u16 max_fifo_size;
enum st_lsm6dsx_hw_id id[ST_LSM6DSX_MAX_ID];
struct st_lsm6dsx_reg decimator[ST_LSM6DSX_MAX_ID];
struct st_lsm6dsx_reg batch[ST_LSM6DSX_MAX_ID];
struct st_lsm6dsx_fifo_ops fifo_ops;
struct st_lsm6dsx_hw_ts_settings ts_settings;
};
......@@ -175,5 +188,8 @@ int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor,
int st_lsm6dsx_flush_fifo(struct st_lsm6dsx_hw *hw);
int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw,
enum st_lsm6dsx_fifo_mode fifo_mode);
int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw);
int st_lsm6dsx_read_tagged_fifo(struct st_lsm6dsx_hw *hw);
int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u16 odr, u8 *val);
#endif /* ST_LSM6DSX_H */
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
View file @ 4b55dce8
......@@ -12,6 +12,11 @@
* buffer contains the data of all the enabled FIFO data sets
* (e.g. Gx, Gy, Gz, Ax, Ay, Az), then data are repeated depending on the
* value of the decimation factor and ODR set for each FIFO data set.
*
* LSM6DSO: The FIFO buffer can be configured to store data from gyroscope and
* accelerometer. Each sample is queued with a tag (1B) indicating data source
* (gyroscope, accelerometer, hw timer).
*
* FIFO supported modes:
* - BYPASS: FIFO disabled
* - CONTINUOUS: FIFO enabled. When the buffer is full, the FIFO index
......@@ -46,6 +51,7 @@
#define ST_LSM6DSX_FIFO_ODR_MASK GENMASK(6, 3)
#define ST_LSM6DSX_FIFO_EMPTY_MASK BIT(12)
#define ST_LSM6DSX_REG_FIFO_OUTL_ADDR 0x3e
#define ST_LSM6DSX_REG_FIFO_OUT_TAG_ADDR 0x78
#define ST_LSM6DSX_REG_TS_RESET_ADDR 0x42
#define ST_LSM6DSX_MAX_FIFO_ODR_VAL 0x08
......@@ -58,6 +64,12 @@ struct st_lsm6dsx_decimator_entry {
u8 val;
};
enum st_lsm6dsx_fifo_tag {
ST_LSM6DSX_GYRO_TAG = 0x01,
ST_LSM6DSX_ACC_TAG = 0x02,
ST_LSM6DSX_TS_TAG = 0x04,
};
static const
struct st_lsm6dsx_decimator_entry st_lsm6dsx_decimator_table[] = {
{ 0, 0x0 },
......@@ -177,12 +189,34 @@ static int st_lsm6dsx_set_fifo_odr(struct st_lsm6dsx_sensor *sensor,
bool enable)
{
struct st_lsm6dsx_hw *hw = sensor->hw;
const struct st_lsm6dsx_reg *batch_reg;
u8 data;
data = hw->enable_mask ? ST_LSM6DSX_MAX_FIFO_ODR_VAL : 0;
return regmap_update_bits(hw->regmap, ST_LSM6DSX_REG_FIFO_MODE_ADDR,
ST_LSM6DSX_FIFO_ODR_MASK,
FIELD_PREP(ST_LSM6DSX_FIFO_ODR_MASK, data));
batch_reg = &hw->settings->batch[sensor->id];
if (batch_reg->addr) {
int val;
if (enable) {
int err;
err = st_lsm6dsx_check_odr(sensor, sensor->odr,
&data);
if (err < 0)
return err;
} else {
data = 0;
}
val = ST_LSM6DSX_SHIFT_VAL(data, batch_reg->mask);
return regmap_update_bits(hw->regmap, batch_reg->addr,
batch_reg->mask, val);
} else {
data = hw->enable_mask ? ST_LSM6DSX_MAX_FIFO_ODR_VAL : 0;
return regmap_update_bits(hw->regmap,
ST_LSM6DSX_REG_FIFO_MODE_ADDR,
ST_LSM6DSX_FIFO_ODR_MASK,
FIELD_PREP(ST_LSM6DSX_FIFO_ODR_MASK,
data));
}
}
int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark)
......@@ -251,21 +285,21 @@ static int st_lsm6dsx_reset_hw_ts(struct st_lsm6dsx_hw *hw)
}
/*
* Set max bulk read to ST_LSM6DSX_MAX_WORD_LEN in order to avoid
* a kmalloc for each bus access
* Set max bulk read to ST_LSM6DSX_MAX_WORD_LEN/ST_LSM6DSX_MAX_TAGGED_WORD_LEN
* in order to avoid a kmalloc for each bus access
*/
static inline int st_lsm6dsx_read_block(struct st_lsm6dsx_hw *hw, u8 *data,
unsigned int data_len)
static inline int st_lsm6dsx_read_block(struct st_lsm6dsx_hw *hw, u8 addr,
u8 *data, unsigned int data_len,
unsigned int max_word_len)
{
unsigned int word_len, read_len = 0;
int err;
while (read_len < data_len) {
word_len = min_t(unsigned int, data_len - read_len,
ST_LSM6DSX_MAX_WORD_LEN);
err = regmap_bulk_read(hw->regmap,
ST_LSM6DSX_REG_FIFO_OUTL_ADDR,
data + read_len, word_len);
max_word_len);
err = regmap_bulk_read(hw->regmap, addr, data + read_len,
word_len);
if (err < 0)
return err;
read_len += word_len;
......@@ -283,7 +317,7 @@ static inline int st_lsm6dsx_read_block(struct st_lsm6dsx_hw *hw, u8 *data,
*
* Return: Number of bytes read from the FIFO
*/
static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
{
u16 fifo_len, pattern_len = hw->sip * ST_LSM6DSX_SAMPLE_SIZE;
u16 fifo_diff_mask = hw->settings->fifo_ops.fifo_diff.mask;
......@@ -315,7 +349,9 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
gyro_sensor = iio_priv(hw->iio_devs[ST_LSM6DSX_ID_GYRO]);
for (read_len = 0; read_len < fifo_len; read_len += pattern_len) {
err = st_lsm6dsx_read_block(hw, hw->buff, pattern_len);
err = st_lsm6dsx_read_block(hw, ST_LSM6DSX_REG_FIFO_OUTL_ADDR,
hw->buff, pattern_len,
ST_LSM6DSX_MAX_WORD_LEN);
if (err < 0) {
dev_err(hw->dev,
"failed to read pattern from fifo (err=%d)\n",
......@@ -401,13 +437,111 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
return read_len;
}
/**
* st_lsm6dsx_read_tagged_fifo() - LSM6DSO read FIFO routine
* @hw: Pointer to instance of struct st_lsm6dsx_hw.
*
* Read samples from the hw FIFO and push them to IIO buffers.
*
* Return: Number of bytes read from the FIFO
*/
int st_lsm6dsx_read_tagged_fifo(struct st_lsm6dsx_hw *hw)
{
u16 pattern_len = hw->sip * ST_LSM6DSX_TAGGED_SAMPLE_SIZE;
u16 fifo_len, fifo_diff_mask;
struct st_lsm6dsx_sensor *acc_sensor, *gyro_sensor;
u8 iio_buff[ST_LSM6DSX_IIO_BUFF_SIZE], tag;
bool reset_ts = false;
int i, err, read_len;
__le16 fifo_status;
s64 ts = 0;
err = regmap_bulk_read(hw->regmap,
hw->settings->fifo_ops.fifo_diff.addr,
&fifo_status, sizeof(fifo_status));
if (err < 0) {
dev_err(hw->dev, "failed to read fifo status (err=%d)\n",
err);
return err;
}
fifo_diff_mask = hw->settings->fifo_ops.fifo_diff.mask;
fifo_len = (le16_to_cpu(fifo_status) & fifo_diff_mask) *
ST_LSM6DSX_TAGGED_SAMPLE_SIZE;
if (!fifo_len)
return 0;
acc_sensor = iio_priv(hw->iio_devs[ST_LSM6DSX_ID_ACC]);
gyro_sensor = iio_priv(hw->iio_devs[ST_LSM6DSX_ID_GYRO]);
for (read_len = 0; read_len < fifo_len; read_len += pattern_len) {
err = st_lsm6dsx_read_block(hw,
ST_LSM6DSX_REG_FIFO_OUT_TAG_ADDR,
hw->buff, pattern_len,
ST_LSM6DSX_MAX_TAGGED_WORD_LEN);
if (err < 0) {
dev_err(hw->dev,
"failed to read pattern from fifo (err=%d)\n",
err);
return err;
}
for (i = 0; i < pattern_len;
i += ST_LSM6DSX_TAGGED_SAMPLE_SIZE) {
memcpy(iio_buff, &hw->buff[i + ST_LSM6DSX_TAG_SIZE],
ST_LSM6DSX_SAMPLE_SIZE);
tag = hw->buff[i] >> 3;
switch (tag) {
case ST_LSM6DSX_TS_TAG:
/*
* hw timestamp is 4B long and it is stored
* in FIFO according to this schema:
* B0 = ts[7:0], B1 = ts[15:8], B2 = ts[23:16],
* B3 = ts[31:24]
*/
ts = le32_to_cpu(*((__le32 *)iio_buff));
/*
* check if hw timestamp engine is going to
* reset (the sensor generates an interrupt
* to signal the hw timestamp will reset in
* 1.638s)
*/
if (!reset_ts && ts >= 0xffff0000)
reset_ts = true;
ts *= ST_LSM6DSX_TS_SENSITIVITY;
break;
case ST_LSM6DSX_GYRO_TAG:
iio_push_to_buffers_with_timestamp(
hw->iio_devs[ST_LSM6DSX_ID_GYRO],
iio_buff, gyro_sensor->ts_ref + ts);
break;
case ST_LSM6DSX_ACC_TAG:
iio_push_to_buffers_with_timestamp(
hw->iio_devs[ST_LSM6DSX_ID_ACC],
iio_buff, acc_sensor->ts_ref + ts);
break;
default:
break;
}
}
}
if (unlikely(reset_ts)) {
err = st_lsm6dsx_reset_hw_ts(hw);
if (err < 0)
return err;
}
return read_len;
}
int st_lsm6dsx_flush_fifo(struct st_lsm6dsx_hw *hw)
{
int err;
mutex_lock(&hw->fifo_lock);
st_lsm6dsx_read_fifo(hw);
hw->settings->fifo_ops.read_fifo(hw);
err = st_lsm6dsx_set_fifo_mode(hw, ST_LSM6DSX_FIFO_BYPASS);
mutex_unlock(&hw->fifo_lock);
......@@ -479,7 +613,7 @@ static irqreturn_t st_lsm6dsx_handler_thread(int irq, void *private)
int count;
mutex_lock(&hw->fifo_lock);
count = st_lsm6dsx_read_fifo(hw);
count = hw->settings->fifo_ops.read_fifo(hw);
mutex_unlock(&hw->fifo_lock);
return !count ? IRQ_NONE : IRQ_HANDLED;
......
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
View file @ 4b55dce8
......@@ -23,6 +23,12 @@
* - Gyroscope supported full-scale [dps]: +-125/+-245/+-500/+-1000/+-2000
* - FIFO size: 4KB
*
* - LSM6DSO
* - Accelerometer/Gyroscope supported ODR [Hz]: 13, 26, 52, 104, 208, 416
* - Accelerometer supported full-scale [g]: +-2/+-4/+-8/+-16
* - Gyroscope supported full-scale [dps]: +-125/+-245/+-500/+-1000/+-2000
* - FIFO size: 3KB
*
* Copyright 2016 STMicroelectronics Inc.
*
* Lorenzo Bianconi <lorenzo.bianconi@st.com>
......@@ -171,6 +177,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
},
.fifo_ops = {
.read_fifo = st_lsm6dsx_read_fifo,
.fifo_th = {
.addr = 0x06,
.mask = GENMASK(11, 0),
......@@ -217,6 +224,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
},
.fifo_ops = {
.read_fifo = st_lsm6dsx_read_fifo,
.fifo_th = {
.addr = 0x06,
.mask = GENMASK(11, 0),
......@@ -265,6 +273,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
},
.fifo_ops = {
.read_fifo = st_lsm6dsx_read_fifo,
.fifo_th = {
.addr = 0x06,
.mask = GENMASK(10, 0),
......@@ -294,6 +303,45 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
},
},
{
.wai = 0x6c,
.max_fifo_size = 512,
.id = {
[0] = ST_LSM6DSO_ID,
},
.batch = {
[ST_LSM6DSX_ID_ACC] = {
.addr = 0x09,
.mask = GENMASK(3, 0),
},
[ST_LSM6DSX_ID_GYRO] = {
.addr = 0x09,
.mask = GENMASK(7, 4),
},
},
.fifo_ops = {
.read_fifo = st_lsm6dsx_read_tagged_fifo,
.fifo_th = {
.addr = 0x07,
.mask = GENMASK(8, 0),
},
.fifo_diff = {
.addr = 0x3a,
.mask = GENMASK(8, 0),
},
.th_wl = 1,
},
.ts_settings = {
.timer_en = {
.addr = 0x19,
.mask = BIT(5),
},
.decimator = {
.addr = 0x0a,
.mask = GENMASK(7, 6),
},
},
},
};
#define ST_LSM6DSX_CHANNEL(chan_type, addr, mod, scan_idx) \
......@@ -395,8 +443,7 @@ static int st_lsm6dsx_set_full_scale(struct st_lsm6dsx_sensor *sensor,
return 0;
}
static int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u16 odr,
u8 *val)
int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u16 odr, u8 *val)
{
int i;
......
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
View file @ 4b55dce8
......@@ -61,6 +61,10 @@ static const struct of_device_id st_lsm6dsx_i2c_of_match[] = {
.compatible = "st,ism330dlc",
.data = (void *)ST_ISM330DLC_ID,
},
{
.compatible = "st,lsm6dso",
.data = (void *)ST_LSM6DSO_ID,
},
{},
};
MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match);
......@@ -71,6 +75,7 @@ static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = {
{ ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
{ ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
{ ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
{ ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID },
{},
};
MODULE_DEVICE_TABLE(i2c, st_lsm6dsx_i2c_id_table);
......
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
View file @ 4b55dce8
......@@ -61,6 +61,10 @@ static const struct of_device_id st_lsm6dsx_spi_of_match[] = {
.compatible = "st,ism330dlc",
.data = (void *)ST_ISM330DLC_ID,
},
{
.compatible = "st,lsm6dso",
.data = (void *)ST_LSM6DSO_ID,
},
{},
};
MODULE_DEVICE_TABLE(of, st_lsm6dsx_spi_of_match);
......@@ -71,6 +75,7 @@ static const struct spi_device_id st_lsm6dsx_spi_id_table[] = {
{ ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
{ ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
{ ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
{ ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID },
{},
};
MODULE_DEVICE_TABLE(spi, st_lsm6dsx_spi_id_table);
......
drivers/iio/light/bh1750.c
View file @ 4b55dce8
// SPDX-License-Identifier: GPL-2.0
/*
* ROHM BH1710/BH1715/BH1721/BH1750/BH1751 ambient light sensor driver
*
* Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Data sheets:
* http://rohmfs.rohm.com/en/products/databook/datasheet/ic/sensor/light/bh1710fvc-e.pdf
* http://rohmfs.rohm.com/en/products/databook/datasheet/ic/sensor/light/bh1715fvc-e.pdf
......@@ -281,8 +278,7 @@ static int bh1750_remove(struct i2c_client *client)
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int bh1750_suspend(struct device *dev)
static int __maybe_unused bh1750_suspend(struct device *dev)
{
int ret;
struct bh1750_data *data =
......@@ -300,10 +296,6 @@ static int bh1750_suspend(struct device *dev)
}
static SIMPLE_DEV_PM_OPS(bh1750_pm_ops, bh1750_suspend, NULL);
#define BH1750_PM_OPS (&bh1750_pm_ops)
#else
#define BH1750_PM_OPS NULL
#endif
static const struct i2c_device_id bh1750_id[] = {
{ "bh1710", BH1710 },
......@@ -318,7 +310,7 @@ MODULE_DEVICE_TABLE(i2c, bh1750_id);
static struct i2c_driver bh1750_driver = {
.driver = {
.name = "bh1750",
.pm = BH1750_PM_OPS,
.pm = &bh1750_pm_ops,
},
.probe = bh1750_probe,
.remove = bh1750_remove,
......
drivers/iio/light/max44000.c
View file @ 4b55dce8
......@@ -99,7 +99,6 @@ static const int max44000_alspga_shift[] = {0, 2, 4, 7};
* Handling this internally is also required for buffer support because the
* channel's scan_type can't be modified dynamically.
*/
static const int max44000_alstim_shift[] = {0, 2, 4, 6};
#define MAX44000_ALSTIM_SHIFT(alstim) (2 * (alstim))
/* Available integration times with pretty manual alignment: */
......
drivers/iio/light/tsl2772.c
View file @ 4b55dce8
This diff is collapsed.
drivers/iio/multiplexer/iio-mux.c
View file @ 4b55dce8
// SPDX-License-Identifier: GPL-2.0
/*
* IIO multiplexer driver
*
* Copyright (C) 2017 Axentia Technologies AB
*
* Author: Peter Rosin <peda@axentia.se>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/err.h>
......
drivers/iio/potentiometer/max5481.c
View file @ 4b55dce8
......@@ -137,7 +137,6 @@ static int max5481_probe(struct spi_device *spi)
struct iio_dev *indio_dev;
struct max5481_data *data;
const struct spi_device_id *id = spi_get_device_id(spi);
const struct of_device_id *match;
int ret;
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*data));
......@@ -149,10 +148,8 @@ static int max5481_probe(struct spi_device *spi)
data->spi = spi;
match = of_match_device(of_match_ptr(max5481_match), &spi->dev);
if (match)
data->cfg = of_device_get_match_data(&spi->dev);
else
data->cfg = of_device_get_match_data(&spi->dev);
if (!data->cfg)
data->cfg = &max5481_cfg[id->driver_data];
indio_dev->name = id->name;
......
drivers/iio/potentiometer/mcp4018.c
View file @ 4b55dce8
......@@ -147,7 +147,6 @@ static int mcp4018_probe(struct i2c_client *client)
struct device *dev = &client->dev;
struct mcp4018_data *data;
struct iio_dev *indio_dev;
const struct of_device_id *match;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_BYTE)) {
......@@ -162,10 +161,8 @@ static int mcp4018_probe(struct i2c_client *client)
i2c_set_clientdata(client, indio_dev);
data->client = client;
match = of_match_device(of_match_ptr(mcp4018_of_match), dev);
if (match)
data->cfg = of_device_get_match_data(dev);
else
data->cfg = of_device_get_match_data(dev);
if (!data->cfg)
data->cfg = &mcp4018_cfg[i2c_match_id(mcp4018_id, client)->driver_data];
indio_dev->dev.parent = dev;
......@@ -190,4 +187,4 @@ module_i2c_driver(mcp4018_driver);
MODULE_AUTHOR("Peter Rosin <peda@axentia.se>");
MODULE_DESCRIPTION("MCP4018 digital potentiometer");
MODULE_LICENSE("GPL");
MODULE_LICENSE("GPL v2");
drivers/iio/potentiometer/mcp4531.c
View file @ 4b55dce8
// SPDX-License-Identifier: GPL-2.0
/*
* Industrial I/O driver for Microchip digital potentiometers
* Copyright (c) 2015 Axentia Technologies AB
......@@ -22,10 +23,6 @@
* mcp4652 2 257 5, 10, 50, 100 01011xx
* mcp4661 2 257 5, 10, 50, 100 0101xxx
* mcp4662 2 257 5, 10, 50, 100 01011xx
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#include <linux/module.h>
......@@ -360,7 +357,6 @@ static int mcp4531_probe(struct i2c_client *client)
struct device *dev = &client->dev;
struct mcp4531_data *data;
struct iio_dev *indio_dev;
const struct of_device_id *match;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_WORD_DATA)) {
......@@ -375,10 +371,8 @@ static int mcp4531_probe(struct i2c_client *client)
i2c_set_clientdata(client, indio_dev);
data->client = client;
match = of_match_device(of_match_ptr(mcp4531_of_match), dev);
if (match)
data->cfg = of_device_get_match_data(dev);
else
data->cfg = of_device_get_match_data(dev);
if (!data->cfg)
data->cfg = &mcp4531_cfg[i2c_match_id(mcp4531_id, client)->driver_data];
indio_dev->dev.parent = dev;
......@@ -403,4 +397,4 @@ module_i2c_driver(mcp4531_driver);
MODULE_AUTHOR("Peter Rosin <peda@axentia.se>");
MODULE_DESCRIPTION("MCP4531 digital potentiometer");
MODULE_LICENSE("GPL");
MODULE_LICENSE("GPL v2");
drivers/iio/pressure/ms5611.h
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* MS5611 pressure and temperature sensor driver
*
* Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#ifndef _MS5611_H
......
drivers/iio/pressure/ms5611_core.c
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// SPDX-License-Identifier: GPL-2.0
/*
* MS5611 pressure and temperature sensor driver
*
* Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Data sheet:
* http://www.meas-spec.com/downloads/MS5611-01BA03.pdf
* http://www.meas-spec.com/downloads/MS5607-02BA03.pdf
......
drivers/iio/pressure/ms5611_i2c.c
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drivers/iio/pressure/ms5611_spi.c
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drivers/iio/proximity/isl29501.c
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drivers/iio/trigger/iio-trig-sysfs.c
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drivers/staging/iio/adc/ad7192.c
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drivers/staging/iio/adc/ad7280a.c
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drivers/staging/iio/adc/ad7606.c
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drivers/staging/iio/adc/ad7606_par.c
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drivers/staging/iio/adc/ad7606_spi.c
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drivers/staging/iio/adc/ad7780.c
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drivers/staging/iio/cdc/ad7746.c
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drivers/staging/iio/frequency/ad9832.c
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drivers/staging/iio/frequency/ad9834.c
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include/dt-bindings/iio/qcom,spmi-vadc.h
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