- 30 Mar, 2018 3 commits
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Xingyu Chen authored
Add the SAR ADC driver for the Amlogic Meson-AXG SoC. Signed-off-by:
Xingyu Chen <xingyu.chen@amlogic.com> Acked-by:
Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Xingyu Chen authored
Update the documentation to expicitly support the Meson-AXG SoC. Signed-off-by:
Rob Herring <robh@kernel.org> Acked-by:
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Yixun Lan authored
Extract and promote common adc platform data into a new structure, to make it better share the info between several SoCs, this will avoid duplicating the code all over the place, Save a few memory and make the code more maintainable. Signed-off-by:
Yixun Lan <yixun.lan@amlogic.com> Acked-by:
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- 25 Mar, 2018 2 commits
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Brian Masney authored
The events IIO_EV_INFO_VALUE and IIO_EV_INFO_ENABLE currently have a falling and rising direction configured. There does not need to be a separate distinction so this patch changes these to use the either direction. Directory listing of event sysfs attributes for a TSL2772 with this patch applied: in_intensity0_thresh_either_en in_intensity0_thresh_either_period in_intensity0_thresh_falling_value in_intensity0_thresh_rising_value in_proximity0_thresh_either_en in_proximity0_thresh_either_period in_proximity0_thresh_falling_value in_proximity0_thresh_rising_value Signed-off-by:
Brian Masney <masneyb@onstation.org> Signed-off-by:
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Brian Masney authored
The hardware supports 16-bit ALS and proximity readings, however the datasheet recommends using the I2C auto increment protocol so that the correct high and low bytes are read even if the integration cycle ends between reading the lower and upper registers. Signed-off-by:
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- 24 Mar, 2018 23 commits
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Himanshu Jha authored
Move adis16201 driver out of staging and merge into mainline IIO subsystem. Signed-off-by:
Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by:
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Himanshu Jha authored
Split the line over 80 characters limit to fix checkpatch warning. Signed-off-by:
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Himanshu Jha authored
Use GENMASK to improve readability and remove the local variables used to store intermediate data. Signed-off-by:
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Himanshu Jha authored
Remove few unused headers files since the adis core handles the buffer and sysfs support. Signed-off-by:
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Brian Masney authored
Add Brian Masney's copyright and to the list of module authors for all of the staging cleanups. This patch also update's Jon Brenner's current work email address since AMS now owns TAOS. Signed-off-by:
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Brian Masney authored
This patch ensures that all of the local variable declarations are in reverse Christmas tree order where possible to increase code readability. Signed-off-by:
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Brian Masney authored
Remove the ch0 and ch1 variables from tsl2x7x_get_lux() and write those values directly into the chip->als_cur_info.als_ch0 and chip->als_cur_info.als_ch01 variables. Signed-off-by:
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Brian Masney authored
tsl2x7x_get_lux() has a ch0lux and ch1lux variables that are not used so this patch removes them. Signed-off-by:
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Brian Masney authored
The struct tsl2x7x_settings contained a persistence member that contained both the ALS and proximity persistence fields. This patch splits this out into two separate fields so that the bitmasks in several parts of the code are no longer necessary. The default persistence settings are also changed by this patch from: - Proximity: 0 (Every proximity cycle generates an interrupt) - ALS: 255 (60 consecutive values out of range) to something a little more reasonable based on my testing: - Proximity: 1 (1 proximity value out of range) - ALS: 1 (1 value outside of threshold range) Signed-off-by:
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Brian Masney authored
This patch updates all of the logging commands so that they are consistent with the other messages, includes __func__ in the message, and all of the messages include newlines. This patch also removes some debug log messages. Signed-off-by:
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Brian Masney authored
The struct tsl2x7x_settings contained an interrupts_en member that was a bitmask for which interrupts are enabled. This required having bitmasks in several parts of the code. This patch splits this field out into two booleans to remove most of the bitmasks in the code. This patch also fixes a bug where if an interrupt pin was configured, but proximity interrupts were disabled, then the proximity value could not be polled. This patch also removes an unnecessary second call to writing the control register in tsl2x7x_chip_on(). Driver tested using a TSL2772 hooked up to a Raspberry Pi 2. Signed-off-by:
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Brian Masney authored
tsl2x7x_prox_cal() would set the interrupt flag, and reset the device to start doing the calibration routine. However, this did not actually affect the readings since they are polled. This patch drops the interrupt code. This patch also drops the function tsl2x7x_prox_calculate() and removes support for the standard deviation and min sample since those values were not used. Driver was tested using a TSL2772 hooked up to a Raspberry Pi 2. I performed the following testing at various distances: - Put hand in front of sensor and keep the sensor and hand stationary. - Perform calibration routine. - Run iio_event_monitor. - Verify that a proximity event is triggered when my hand comes anywhere between the sensor and where I performed the calibration routine. Signed-off-by:
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Brian Masney authored
tsl2x7x_get_lux() does not need to clear the interrupt flag when querying the ALS. The interrupt flag is cleared in tsl2x7x_event_handler(). This patches removes the unnecessary code. Signed-off-by:
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Brian Masney authored
tsl2x7x_event_handler() was not called as expected when the device was asserting a hardware interrupt. This patch changes the interrupt line trigger from rising to falling. The driver was tested on a TSL2772 hooked up to a Raspberry Pi 2. The interrupt pin also had a 10K pull-up resistor per the requirements from the datasheet. The relevant device tree binding: &i2c1 { tsl2772@39 { compatible = "amstaos,tsl2772"; reg = <0x39>; interrupt-parent = <&gpio>; interrupts = <22 0x2>; }; }; With this patch, iio_event_monitor now shows the events when the channels are outside the defined interrupt thresholds. $ sudo ./iio_event_monitor tsl2772 Found IIO device with name tsl2772 with device number 0 Event: time: 1478193460053760446, type: proximity, channel: 0, evtype: thresh, direction: either ... Event: time: 1478193463020270185, type: illuminance, channel: 0, evtype: thresh, direction: either ... Signed-off-by: -
Brian Masney authored
As a follow up to the work in commit a0722d05 ("staging: iio: tsl2x7x: convert mutex_trylock() to mutex_lock()"), this patch removes the unnecessary calls to tsl2x7x_get_prox() and tsl2x7x_get_lux() in tsl2x7x_event_handler(). Previously, these functions were locked with mutex_trylock(), but that is no longer the case. This patch also removes a comment that is no longer relevant about returning the last sample. Signed-off-by:
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Rodrigo Siqueira authored
The original code had a read function per data size; after updates, all read functions tasks were centralized in a single function, but the old signature was kept to maintain the module working without problems. This patch removes a set of duplications associated with read_reg_*, and update the areas that calling the old interface by the new one. Signed-off-by:
Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Signed-off-by:
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Rodrigo Siqueira authored
Rework read SPI function to reduce the code duplication and centralizes all the task in a single function. Signed-off-by:
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Rodrigo Siqueira authored
The read operation for the I2C function has many duplications that can be generalized into a single function. This patch reworks the read operation for I2C to centralizes all similar code in a single function. It is possible to remove all the old interface to use the new one, however, for keeping the things simple and working this patch maintain legacy interface. Signed-off-by:
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Rodrigo Siqueira authored
This patch removes code duplications related to the write_reg_* functions and centralizes them in a single function. Also, it eliminates the legacy functions and replaces them by a unique signature that is used by SPI and I2C. Signed-off-by:
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Rodrigo Siqueira authored
The write operation using SPI has a many code duplications (similar to I2C) and four different interfaces per data size. This patch introduces a single function that centralizes the main task related to SPI. Signed-off-by:
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Rodrigo Siqueira authored
The write operation using I2C has many code duplications and four different interfaces per data size. This patch introduces a single function that centralizes the main tasks. The central function inserted by this patch can easily replace all the four functions related to the data size. However, this patch does not remove any code signature for keeping the meter module work and make easier to review this patch. Signed-off-by:
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John Syne authored
Fixes: correctly handle the data size in the read operation for I2C The function ade7854_i2c_read_reg_32() have to invoke the i2c_master_recv() for read 32 bits values, however, the counter is set to 3 which means 24 bits. This patch fixes the wrong size of 24 bits, to 32 bits. Signed-off-by:
John Syne <john3909@gmail.com> Signed-off-by:
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John Syne authored
The original code does not correctly handle the error related to I2C read and write. This patch fixes the error handling related to all read/write functions for I2C. Signed-off-by:
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- 18 Mar, 2018 8 commits
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Himanshu Jha authored
In adis16201_read_raw() adjust an argument to match an open parentheses using tabs and spaces. Signed-off-by:
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Himanshu Jha authored
Prefer reverse christmas tree ordering of declarations to improve readability. Signed-off-by:
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Himanshu Jha authored
Use sign_extned32() for 32 bit sign extending rather than hard coding. Signed-off-by:
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Himanshu Jha authored
Clarify the conversion and formation of resultant data in the adis16201_read_raw() with sufficient comments and remove the unnecessary comments. Signed-off-by:
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Himanshu Jha authored
Group register definitions with its register field bits to improve readability and easy identification. A small comment is also added to denote the purpose/functionality of the grouped register definitions. Signed-off-by:
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Himanshu Jha authored
Add a _REG suffix to distinguish between registers and the register bit fileds. Signed-off-by:
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Himanshu Jha authored
Remove few unnecessary comments since the macro definitions clearly justify their purpose. Signed-off-by:
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Himanshu Jha authored
Rename the macro definitions with suitable names specifying their purpose. * ADIS16201_STARTUP_DELAY_MS: Remove the comment specifying the delay in microseconds and rename it with addtition of _MS suffix. * ADIS16201_MSC_CTRL_ACTIVE_DATA_RDY_HIGH: Rename the macro to make it similar to other misc control registers which denotes the data ready polarity. * ADIS16201_DIAG_STAT_FLASH_UPT_FAIL_BIT: Rename to denote it is a failure bit. * ADIS16201_GLOB_CMD_FACTORY_RESET: Remove ambiguous _CAL suffix and add _RESET suffix instead to denote factory reset command. Signed-off-by:
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- 17 Mar, 2018 4 commits
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Alexandru Ardelean authored
The `ad7780` driver does not implement setting/getting the sampling frequency. For the ad7780/ad7781 devices, the control is done via an external pin, and the ad7170/ad7171 devices have a fixed sampling rate (so, no control). For these devices, and similar other that may be added later on, a AD_SD_CHANNEL_NO_SAMPLE_FREQ() macro has been added, which doesn't set the IIO_CHAN_INFO_SAMP_FREQ flag. Signed-off-by:
Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by:
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Alexandru Ardelean authored
Now that the old read/write frequency sysfs attrs have been removed, we have a clean slate to implement IIO_CHAN_INFO_SAMP_FREQ. This driver also pre-dates IIO_CHAN_INFO_SAMP_FREQ, and this change implements this behavior. The `ad7791_write_raw` would have overlapped quite a bit with the old read/write frequency functions, making things a bit harder to follow. Fixes: a13e831f ("staging: iio: ad7192: implement IIO_CHAN_INFO_SAMP_FREQ") Signed-off-by:
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Alexandru Ardelean authored
In the current state, these attributes are broken, because they are registered already, and the kernel throws a warning. The first registration happens via the `IIO_CHAN_INFO_SAMP_FREQ` flag from the `ad_sigma_delta` driver. In this commit these attrs are removed, and in the following the IIO_CHAN_INFO_SAMP_FREQ behavior will be implemented, which replaces these hooks. This is done to make things a bit easier to review as there is a bit of overlap in the patch if it's done all at once. Fixes: a13e831f ("staging: iio: ad7192: implement IIO_CHAN_INFO_SAMP_FREQ") Signed-off-by:
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Gwendal Grignou authored
Similar to other common iio frameworks, move cros_ec_sensors_core.h from drivers/iio/common/cros_ec_sensors/ to include/linux/iio/common. Signed-off-by:
Gwendal Grignou <gwendal@chromium.org> Signed-off-by:
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