diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-07-14 12:05:29 +0900 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-07-14 12:05:29 +0900 |
commit | 6c71ee3b6157fdbde5c839405b593876d3687eb9 (patch) | |
tree | b22fc024193c447affb729423f0e661b60b59e5a /drivers/iio/adc | |
parent | 7813029a509c0c92a5b16d846defaa50a2d3d7f1 (diff) | |
parent | 0ddfd857130d16b1fb1e45c5ab2321a65738d70b (diff) |
Merge tag 'iio-for-4.8c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
Third set of IIO new device support, features and cleanups for the 4.8 cycle.
New core features
- Selection of the clock source for IIO timestamps. This is done per device
as it makes little sense to have events in one timebase and data timestamped
on another. Biggest reason for this is that we currently use a clock
source which is non monotonic which can result in 'interesting' data sets.
(Includes export for get_monotonic_corse64 which Thomas Gleixner didn't mind
in an earlier version.)
- MAINTAINERS add the git tree to the list for IIO.
New device support + a kind of indirect staging graduation.
* Broadcom iproc-static-adc
- new driver
* mcp4531
- support for MCP454x, MCP456x, MCP464x and MCP466x potentiometers
* mpu6050
- support the IC20608 6 axis motion tracking device
* st-sensors
- support the lis3l02dq + drop the lis3l02dq driver from staging.
The general purpose driver is missing event support, but good to get
rid of this driver which was rather long in the tooth.
New driver features
* ak8975
- Add vid regulator support and refactor handling in general.
- Allow a delay after enabling regulators.
- Runtime and system PM.
* bmg160
- filter frequency control support.
* bmp280
- SPI device support.
- EOC interrupt support for the BMP085
- power management support.
- supply regulator support.
- reset gpio support
- dt bindings for reset gpio and regulators.
- of table to support device tree registration
* max1363
- Device tree bindings.
* mcp4531
- Device tree bindings.
* st-pressure
- temperature channels as part of triggered buffer (previously not due
probably to alignment issues - see below).
- lps22hb open drain interrupt support.
- lps22hb temperature channel support
Cleanups and reworkings.
* numerous ADC drivers
- ensure the iio_dev->dev.of_node is set to the parent dev.of_node so
as to allow client bindings to find the device.
* ak8975
- Fix incorrect handling of missing regulator
- make sure power is down and remove.
* bmp280
- read the calibration data only once as it doesn't change.
* isl29125
- Use a few macros to make code a touch more readable.
* mma8452
- fix a memory leak on error.
- drop an unecessary bit of return value handling.
* potentiometer kconfig
- typo fix.
* st-pressure
- drop some uninformative default assignments of elements of the channel
array structure (aids readability).
* st-sensors
- Harden interrupt handling considerably. These are actually all using
level interrupts, but at least two known boards have them wired to
edge only interrupt chips. Hence a slightly interesting bit of handling
is needed in which we first allow for the easy option (level triggered) and
secondly check the status registers before reenabling edge interrupts and
fall back to a tight loop in the thread until we successfully clear the
interrupt. No harm is done if we never succeed in doing so. It's an odd
patch that has been through a lot of revisions to reach a consensus on how
to handle what is basically broken hardware (which the previous defaults
allowed to kind of work).
- Fix alignment to defined storagebytes boundaries.
- Ensure alignment of power of 2 byte boundaries. This has always in theory
been part of the ABI of IIO, but we missed a few that snuck in that need
fixing. The effect was minor as they were only followed by timestamp
channels which were correctly aligned,
- Add some docs to explain the gain calculations.
Diffstat (limited to 'drivers/iio/adc')
27 files changed, 761 insertions, 20 deletions
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 25378c5882e2..1de31bdd4ce4 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -153,6 +153,18 @@ config AXP288_ADC To compile this driver as a module, choose M here: the module will be called axp288_adc. +config BCM_IPROC_ADC + tristate "Broadcom IPROC ADC driver" + depends on ARCH_BCM_IPROC || COMPILE_TEST + depends on MFD_SYSCON + default ARCH_BCM_CYGNUS + help + Say Y here if you want to add support for the Broadcom static + ADC driver. + + Broadcom iProc ADC driver. Broadcom iProc ADC controller has 8 + channels. The driver allows the user to read voltage values. + config BERLIN2_ADC tristate "Marvell Berlin2 ADC driver" depends on ARCH_BERLIN diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile index 38638d46f972..0ba0d500eedb 100644 --- a/drivers/iio/adc/Makefile +++ b/drivers/iio/adc/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_AD799X) += ad799x.o obj-$(CONFIG_AT91_ADC) += at91_adc.o obj-$(CONFIG_AT91_SAMA5D2_ADC) += at91-sama5d2_adc.o obj-$(CONFIG_AXP288_ADC) += axp288_adc.o +obj-$(CONFIG_BCM_IPROC_ADC) += bcm_iproc_adc.o obj-$(CONFIG_BERLIN2_ADC) += berlin2-adc.o obj-$(CONFIG_CC10001_ADC) += cc10001_adc.o obj-$(CONFIG_DA9150_GPADC) += da9150-gpadc.o diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c index 11c65db14747..c0f6a98fd9bd 100644 --- a/drivers/iio/adc/ad7266.c +++ b/drivers/iio/adc/ad7266.c @@ -440,6 +440,7 @@ static int ad7266_probe(struct spi_device *spi) st->spi = spi; 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 = &ad7266_info; diff --git a/drivers/iio/adc/ad7291.c b/drivers/iio/adc/ad7291.c index c0eabf156702..1d90b02732bb 100644 --- a/drivers/iio/adc/ad7291.c +++ b/drivers/iio/adc/ad7291.c @@ -115,7 +115,7 @@ static irqreturn_t ad7291_event_handler(int irq, void *private) u16 t_status, v_status; u16 command; int i; - s64 timestamp = iio_get_time_ns(); + s64 timestamp = iio_get_time_ns(indio_dev); if (ad7291_i2c_read(chip, AD7291_T_ALERT_STATUS, &t_status)) return IRQ_HANDLED; @@ -505,6 +505,7 @@ static int ad7291_probe(struct i2c_client *client, indio_dev->num_channels = ARRAY_SIZE(ad7291_channels); indio_dev->dev.parent = &client->dev; + indio_dev->dev.of_node = client->dev.of_node; indio_dev->info = &ad7291_info; indio_dev->modes = INDIO_DIRECT_MODE; diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c index 62bb8f7ce4a0..10ec8fce395f 100644 --- a/drivers/iio/adc/ad7298.c +++ b/drivers/iio/adc/ad7298.c @@ -163,7 +163,7 @@ static irqreturn_t ad7298_trigger_handler(int irq, void *p) goto done; iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf, - iio_get_time_ns()); + iio_get_time_ns(indio_dev)); done: iio_trigger_notify_done(indio_dev->trig); @@ -315,6 +315,7 @@ static int ad7298_probe(struct spi_device *spi) indio_dev->name = spi_get_device_id(spi)->name; indio_dev->dev.parent = &spi->dev; + indio_dev->dev.of_node = spi->dev.of_node; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = ad7298_channels; indio_dev->num_channels = ARRAY_SIZE(ad7298_channels); diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c index 810c9a9fa62f..b7ecf9aab90f 100644 --- a/drivers/iio/adc/ad7476.c +++ b/drivers/iio/adc/ad7476.c @@ -70,7 +70,7 @@ static irqreturn_t ad7476_trigger_handler(int irq, void *p) goto done; iio_push_to_buffers_with_timestamp(indio_dev, st->data, - iio_get_time_ns()); + iio_get_time_ns(indio_dev)); done: iio_trigger_notify_done(indio_dev->trig); @@ -227,6 +227,7 @@ static int ad7476_probe(struct spi_device *spi) /* Establish that the iio_dev is a child of the spi device */ 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->channels = st->chip_info->channel; diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c index 1dfe6410c64c..1817ebf5ad84 100644 --- a/drivers/iio/adc/ad7791.c +++ b/drivers/iio/adc/ad7791.c @@ -375,6 +375,7 @@ static int ad7791_probe(struct spi_device *spi) spi_set_drvdata(spi, indio_dev); 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->channels = st->info->channels; diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c index a43722fbf03a..847789bae821 100644 --- a/drivers/iio/adc/ad7793.c +++ b/drivers/iio/adc/ad7793.c @@ -784,6 +784,7 @@ static int ad7793_probe(struct spi_device *spi) spi_set_drvdata(spi, indio_dev); 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->channels = st->chip_info->channels; diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c index ee2ccc19fab6..7a483bfbd70c 100644 --- a/drivers/iio/adc/ad7887.c +++ b/drivers/iio/adc/ad7887.c @@ -122,7 +122,7 @@ static irqreturn_t ad7887_trigger_handler(int irq, void *p) goto done; iio_push_to_buffers_with_timestamp(indio_dev, st->data, - iio_get_time_ns()); + iio_get_time_ns(indio_dev)); done: iio_trigger_notify_done(indio_dev->trig); @@ -264,6 +264,7 @@ static int ad7887_probe(struct spi_device *spi) /* Estabilish that the iio_dev is a child of the spi device */ 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->info = &ad7887_info; indio_dev->modes = INDIO_DIRECT_MODE; diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c index ff444c19d749..77a675e11ebb 100644 --- a/drivers/iio/adc/ad7923.c +++ b/drivers/iio/adc/ad7923.c @@ -181,7 +181,7 @@ static irqreturn_t ad7923_trigger_handler(int irq, void *p) goto done; iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf, - iio_get_time_ns()); + iio_get_time_ns(indio_dev)); done: iio_trigger_notify_done(indio_dev->trig); @@ -288,6 +288,7 @@ static int ad7923_probe(struct spi_device *spi) indio_dev->name = spi_get_device_id(spi)->name; indio_dev->dev.parent = &spi->dev; + indio_dev->dev.of_node = spi->dev.of_node; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = info->channels; indio_dev->num_channels = info->num_channels; diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c index ec0200dd52cb..b6163764489c 100644 --- a/drivers/iio/adc/ad799x.c +++ b/drivers/iio/adc/ad799x.c @@ -212,7 +212,7 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p) goto out; iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf, - iio_get_time_ns()); + iio_get_time_ns(indio_dev)); out: iio_trigger_notify_done(indio_dev->trig); @@ -502,7 +502,7 @@ static irqreturn_t ad799x_event_handler(int irq, void *private) (i >> 1), IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), - iio_get_time_ns()); + iio_get_time_ns(indio_dev)); } done: @@ -806,6 +806,7 @@ static int ad799x_probe(struct i2c_client *client, st->client = client; indio_dev->dev.parent = &client->dev; + indio_dev->dev.of_node = client->dev.of_node; indio_dev->name = id->name; indio_dev->info = st->chip_config->info; diff --git a/drivers/iio/adc/bcm_iproc_adc.c b/drivers/iio/adc/bcm_iproc_adc.c new file mode 100644 index 000000000000..21d38c8af21e --- /dev/null +++ b/drivers/iio/adc/bcm_iproc_adc.c @@ -0,0 +1,644 @@ +/* + * Copyright 2016 Broadcom + * + * 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 (the "GPL"). + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 (GPLv2) for more details. + * + * You should have received a copy of the GNU General Public License + * version 2 (GPLv2) along with this source code. + */ + +#include <linux/module.h> +#include <linux/of.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/mfd/syscon.h> +#include <linux/regmap.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> + +#include <linux/iio/iio.h> + +/* Below Register's are common to IPROC ADC and Touchscreen IP */ +#define IPROC_REGCTL1 0x00 +#define IPROC_REGCTL2 0x04 +#define IPROC_INTERRUPT_THRES 0x08 +#define IPROC_INTERRUPT_MASK 0x0c +#define IPROC_INTERRUPT_STATUS 0x10 +#define IPROC_ANALOG_CONTROL 0x1c +#define IPROC_CONTROLLER_STATUS 0x14 +#define IPROC_AUX_DATA 0x20 +#define IPROC_SOFT_BYPASS_CONTROL 0x38 +#define IPROC_SOFT_BYPASS_DATA 0x3C + +/* IPROC ADC Channel register offsets */ +#define IPROC_ADC_CHANNEL_REGCTL1 0x800 +#define IPROC_ADC_CHANNEL_REGCTL2 0x804 +#define IPROC_ADC_CHANNEL_STATUS 0x808 +#define IPROC_ADC_CHANNEL_INTERRUPT_STATUS 0x80c +#define IPROC_ADC_CHANNEL_INTERRUPT_MASK 0x810 +#define IPROC_ADC_CHANNEL_DATA 0x814 +#define IPROC_ADC_CHANNEL_OFFSET 0x20 + +/* Bit definitions for IPROC_REGCTL2 */ +#define IPROC_ADC_AUXIN_SCAN_ENA BIT(0) +#define IPROC_ADC_PWR_LDO BIT(5) +#define IPROC_ADC_PWR_ADC BIT(4) +#define IPROC_ADC_PWR_BG BIT(3) +#define IPROC_ADC_CONTROLLER_EN BIT(17) + +/* Bit definitions for IPROC_INTERRUPT_MASK and IPROC_INTERRUPT_STATUS */ +#define IPROC_ADC_AUXDATA_RDY_INTR BIT(3) +#define IPROC_ADC_INTR 9 +#define IPROC_ADC_INTR_MASK (0xFF << IPROC_ADC_INTR) + +/* Bit definitions for IPROC_ANALOG_CONTROL */ +#define IPROC_ADC_CHANNEL_SEL 11 +#define IPROC_ADC_CHANNEL_SEL_MASK (0x7 << IPROC_ADC_CHANNEL_SEL) + +/* Bit definitions for IPROC_ADC_CHANNEL_REGCTL1 */ +#define IPROC_ADC_CHANNEL_ROUNDS 0x2 +#define IPROC_ADC_CHANNEL_ROUNDS_MASK (0x3F << IPROC_ADC_CHANNEL_ROUNDS) +#define IPROC_ADC_CHANNEL_MODE 0x1 +#define IPROC_ADC_CHANNEL_MODE_MASK (0x1 << IPROC_ADC_CHANNEL_MODE) +#define IPROC_ADC_CHANNEL_MODE_TDM 0x1 +#define IPROC_ADC_CHANNEL_MODE_SNAPSHOT 0x0 +#define IPROC_ADC_CHANNEL_ENABLE 0x0 +#define IPROC_ADC_CHANNEL_ENABLE_MASK 0x1 + +/* Bit definitions for IPROC_ADC_CHANNEL_REGCTL2 */ +#define IPROC_ADC_CHANNEL_WATERMARK 0x0 +#define IPROC_ADC_CHANNEL_WATERMARK_MASK \ + (0x3F << IPROC_ADC_CHANNEL_WATERMARK) + +#define IPROC_ADC_WATER_MARK_LEVEL 0x1 + +/* Bit definitions for IPROC_ADC_CHANNEL_STATUS */ +#define IPROC_ADC_CHANNEL_DATA_LOST 0x0 +#define IPROC_ADC_CHANNEL_DATA_LOST_MASK \ + (0x0 << IPROC_ADC_CHANNEL_DATA_LOST) +#define IPROC_ADC_CHANNEL_VALID_ENTERIES 0x1 +#define IPROC_ADC_CHANNEL_VALID_ENTERIES_MASK \ + (0xFF << IPROC_ADC_CHANNEL_VALID_ENTERIES) +#define IPROC_ADC_CHANNEL_TOTAL_ENTERIES 0x9 +#define IPROC_ADC_CHANNEL_TOTAL_ENTERIES_MASK \ + (0xFF << IPROC_ADC_CHANNEL_TOTAL_ENTERIES) + +/* Bit definitions for IPROC_ADC_CHANNEL_INTERRUPT_MASK */ +#define IPROC_ADC_CHANNEL_WTRMRK_INTR 0x0 +#define IPROC_ADC_CHANNEL_WTRMRK_INTR_MASK \ + (0x1 << IPROC_ADC_CHANNEL_WTRMRK_INTR) +#define IPROC_ADC_CHANNEL_FULL_INTR 0x1 +#define IPROC_ADC_CHANNEL_FULL_INTR_MASK \ + (0x1 << IPROC_ADC_IPROC_ADC_CHANNEL_FULL_INTR) +#define IPROC_ADC_CHANNEL_EMPTY_INTR 0x2 +#define IPROC_ADC_CHANNEL_EMPTY_INTR_MASK \ + (0x1 << IPROC_ADC_CHANNEL_EMPTY_INTR) + +#define IPROC_ADC_WATER_MARK_INTR_ENABLE 0x1 + +/* Number of time to retry a set of the interrupt mask reg */ +#define IPROC_ADC_INTMASK_RETRY_ATTEMPTS 10 + +#define IPROC_ADC_READ_TIMEOUT (HZ*2) + +#define iproc_adc_dbg_reg(dev, priv, reg) \ +do { \ + u32 val; \ + regmap_read(priv->regmap, reg, &val); \ + dev_dbg(dev, "%20s= 0x%08x\n", #reg, val); \ +} while (0) + +struct iproc_adc_priv { + struct regmap *regmap; + struct clk *adc_clk; + struct mutex mutex; + int irqno; + int chan_val; + int chan_id; + struct completion completion; +}; + +static void iproc_adc_reg_dump(struct iio_dev *indio_dev) +{ + struct device *dev = &indio_dev->dev; + struct iproc_adc_priv *adc_priv = iio_priv(indio_dev); + + iproc_adc_dbg_reg(dev, adc_priv, IPROC_REGCTL1); + iproc_adc_dbg_reg(dev, adc_priv, IPROC_REGCTL2); + iproc_adc_dbg_reg(dev, adc_priv, IPROC_INTERRUPT_THRES); + iproc_adc_dbg_reg(dev, adc_priv, IPROC_INTERRUPT_MASK); + iproc_adc_dbg_reg(dev, adc_priv, IPROC_INTERRUPT_STATUS); + iproc_adc_dbg_reg(dev, adc_priv, IPROC_CONTROLLER_STATUS); + iproc_adc_dbg_reg(dev, adc_priv, IPROC_ANALOG_CONTROL); + iproc_adc_dbg_reg(dev, adc_priv, IPROC_AUX_DATA); + iproc_adc_dbg_reg(dev, adc_priv, IPROC_SOFT_BYPASS_CONTROL); + iproc_adc_dbg_reg(dev, adc_priv, IPROC_SOFT_BYPASS_DATA); +} + +static irqreturn_t iproc_adc_interrupt_handler(int irq, void *data) +{ + u32 channel_intr_status; + u32 intr_status; + u32 intr_mask; + struct iio_dev *indio_dev = data; + struct iproc_adc_priv *adc_priv = iio_priv(indio_dev); + + /* + * This interrupt is shared with the touchscreen driver. + * Make sure this interrupt is intended for us. + * Handle only ADC channel specific interrupts. + */ + regmap_read(adc_priv->regmap, IPROC_INTERRUPT_STATUS, &intr_status); + regmap_read(adc_priv->regmap, IPROC_INTERRUPT_MASK, &intr_mask); + intr_status = intr_status & intr_mask; + channel_intr_status = (intr_status & IPROC_ADC_INTR_MASK) >> + IPROC_ADC_INTR; + if (channel_intr_status) + return IRQ_WAKE_THREAD; + + return IRQ_NONE; +} + +static irqreturn_t iproc_adc_interrupt_thread(int irq, void *data) +{ + irqreturn_t retval = IRQ_NONE; + struct iproc_adc_priv *adc_priv; + struct iio_dev *indio_dev = data; + unsigned int valid_entries; + u32 intr_status; + u32 intr_channels; + u32 channel_status; + u32 ch_intr_status; + + adc_priv = iio_priv(indio_dev); + + regmap_read(adc_priv->regmap, IPROC_INTERRUPT_STATUS, &intr_status); + dev_dbg(&indio_dev->dev, "iproc_adc_interrupt_thread(),INTRPT_STS:%x\n", + intr_status); + + intr_channels = (intr_status & IPROC_ADC_INTR_MASK) >> IPROC_ADC_INTR; + if (intr_channels) { + regmap_read(adc_priv->regmap, + IPROC_ADC_CHANNEL_INTERRUPT_STATUS + + IPROC_ADC_CHANNEL_OFFSET * adc_priv->chan_id, + &ch_intr_status); + + if (ch_intr_status & IPROC_ADC_CHANNEL_WTRMRK_INTR_MASK) { + regmap_read(adc_priv->regmap, + IPROC_ADC_CHANNEL_STATUS + + IPROC_ADC_CHANNEL_OFFSET * + adc_priv->chan_id, + &channel_status); + + valid_entries = ((channel_status & + IPROC_ADC_CHANNEL_VALID_ENTERIES_MASK) >> + IPROC_ADC_CHANNEL_VALID_ENTERIES); + if (valid_entries >= 1) { + regmap_read(adc_priv->regmap, + IPROC_ADC_CHANNEL_DATA + + IPROC_ADC_CHANNEL_OFFSET * + adc_priv->chan_id, + &adc_priv->chan_val); + complete(&adc_priv->completion); + } else { + dev_err(&indio_dev->dev, + "No data rcvd on channel %d\n", + adc_priv->chan_id); + } + regmap_write(adc_priv->regmap, + IPROC_ADC_CHANNEL_INTERRUPT_MASK + + IPROC_ADC_CHANNEL_OFFSET * + adc_priv->chan_id, + (ch_intr_status & + ~(IPROC_ADC_CHANNEL_WTRMRK_INTR_MASK))); + } + regmap_write(adc_priv->regmap, + IPROC_ADC_CHANNEL_INTERRUPT_STATUS + + IPROC_ADC_CHANNEL_OFFSET * adc_priv->chan_id, + ch_intr_status); + regmap_write(adc_priv->regmap, IPROC_INTERRUPT_STATUS, + intr_channels); + retval = IRQ_HANDLED; + } + + return retval; +} + +static int iproc_adc_do_read(struct iio_dev *indio_dev, + int channel, + u16 *p_adc_data) +{ + int read_len = 0; + u32 val; + u32 mask; + u32 val_check; + int failed_cnt = 0; + struct iproc_adc_priv *adc_priv = iio_priv(indio_dev); + + mutex_lock(&adc_priv->mutex); + + /* + * After a read is complete the ADC interrupts will be disabled so + * we can assume this section of code is safe from interrupts. + */ + adc_priv->chan_val = -1; + adc_priv->chan_id = channel; + + reinit_completion(&adc_priv->completion); + /* Clear any pending interrupt */ + regmap_update_bits(adc_priv->regmap, IPROC_INTERRUPT_STATUS, + IPROC_ADC_INTR_MASK | IPROC_ADC_AUXDATA_RDY_INTR, + ((0x0 << channel) << IPROC_ADC_INTR) | + IPROC_ADC_AUXDATA_RDY_INTR); + + /* Configure channel for snapshot mode and enable */ + val = (BIT(IPROC_ADC_CHANNEL_ROUNDS) | + (IPROC_ADC_CHANNEL_MODE_SNAPSHOT << IPROC_ADC_CHANNEL_MODE) | + (0x1 << IPROC_ADC_CHANNEL_ENABLE)); + + mask = IPROC_ADC_CHANNEL_ROUNDS_MASK | IPROC_ADC_CHANNEL_MODE_MASK | + IPROC_ADC_CHANNEL_ENABLE_MASK; + regmap_update_bits(adc_priv->regmap, (IPROC_ADC_CHANNEL_REGCTL1 + + IPROC_ADC_CHANNEL_OFFSET * channel), + mask, val); + + /* Set the Watermark for a channel */ + regmap_update_bits(adc_priv->regmap, (IPROC_ADC_CHANNEL_REGCTL2 + + IPROC_ADC_CHANNEL_OFFSET * channel), + IPROC_ADC_CHANNEL_WATERMARK_MASK, + 0x1); + + /* Enable water mark interrupt */ + regmap_update_bits(adc_priv->regmap, (IPROC_ADC_CHANNEL_INTERRUPT_MASK + + IPROC_ADC_CHANNEL_OFFSET * + channel), + IPROC_ADC_CHANNEL_WTRMRK_INTR_MASK, + IPROC_ADC_WATER_MARK_INTR_ENABLE); + regmap_read(adc_priv->regmap, IPROC_INTERRUPT_MASK, &val); + + /* Enable ADC interrupt for a channel */ + val |= (BIT(channel) << IPROC_ADC_INTR); + regmap_write(adc_priv->regmap, IPROC_INTERRUPT_MASK, val); + + /* + * There seems to be a very rare issue where writing to this register + * does not take effect. To work around the issue we will try multiple + * writes. In total we will spend about 10*10 = 100 us attempting this. + * Testing has shown that this may loop a few time, but we have never + * hit the full count. + */ + regmap_read(adc_priv->regmap, IPROC_INTERRUPT_MASK, &val_check); + while (val_check != val) { + failed_cnt++; + + if (failed_cnt > IPROC_ADC_INTMASK_RETRY_ATTEMPTS) + break; + + udelay(10); + regmap_update_bits(adc_priv->regmap, IPROC_INTERRUPT_MASK, + IPROC_ADC_INTR_MASK, + ((0x1 << channel) << + IPROC_ADC_INTR)); + + regmap_read(adc_priv->regmap, IPROC_INTERRUPT_MASK, &val_check); + } + + if (failed_cnt) { + dev_dbg(&indio_dev->dev, + "IntMask failed (%d times)", failed_cnt); + if (failed_cnt > IPROC_ADC_INTMASK_RETRY_ATTEMPTS) { + dev_err(&indio_dev->dev, + "IntMask set failed. Read will likely fail."); + read_len = -EIO; + goto adc_err; + }; + } + regmap_read(adc_priv->regmap, IPROC_INTERRUPT_MASK, &val_check); + + if (wait_for_completion_timeout(&adc_priv->completion, + IPROC_ADC_READ_TIMEOUT) > 0) { + + /* Only the lower 16 bits are relevant */ + *p_adc_data = adc_priv->chan_val & 0xFFFF; + read_len = sizeof(*p_adc_data); + + } else { + /* + * We never got the interrupt, something went wrong. + * Perhaps the interrupt may still be coming, we do not want + * that now. Lets disable the ADC interrupt, and clear the + * status to put it back in to normal state. + */ + read_len = -ETIMEDOUT; + goto adc_err; + } + mutex_unlock(&adc_priv->mutex); + + return read_len; + +adc_err: + regmap_update_bits(adc_priv->regmap, IPROC_INTERRUPT_MASK, + IPROC_ADC_INTR_MASK, + ((0x0 << channel) << IPROC_ADC_INTR)); + + regmap_update_bits(adc_priv->regmap, IPROC_INTERRUPT_STATUS, + IPROC_ADC_INTR_MASK, + ((0x0 << channel) << IPROC_ADC_INTR)); + + dev_err(&indio_dev->dev, "Timed out waiting for ADC data!\n"); + iproc_adc_reg_dump(indio_dev); + mutex_unlock(&adc_priv->mutex); + + return read_len; +} + +static int iproc_adc_enable(struct iio_dev *indio_dev) +{ + u32 val; + u32 channel_id; + struct iproc_adc_priv *adc_priv = iio_priv(indio_dev); + int ret; + + /* Set i_amux = 3b'000, select channel 0 */ + ret = regmap_update_bits(adc_priv->regmap, IPROC_ANALOG_CONTROL, + IPROC_ADC_CHANNEL_SEL_MASK, 0); + if (ret) { + dev_err(&indio_dev->dev, + "failed to write IPROC_ANALOG_CONTROL %d\n", ret); + return ret; + } + adc_priv->chan_val = -1; + + /* + * PWR up LDO, ADC, and Band Gap (0 to enable) + * Also enable ADC controller (set high) + */ + ret = regmap_read(adc_priv->regmap, IPROC_REGCTL2, &val); + if (ret) { + dev_err(&indio_dev->dev, + "failed to read IPROC_REGCTL2 %d\n", ret); + return ret; + } + + val &= ~(IPROC_ADC_PWR_LDO | IPROC_ADC_PWR_ADC | IPROC_ADC_PWR_BG); + + ret = regmap_write(adc_priv->regmap, IPROC_REGCTL2, val); + if (ret) { + dev_err(&indio_dev->dev, + "failed to write IPROC_REGCTL2 %d\n", ret); + return ret; + } + + ret = regmap_read(adc_priv->regmap, IPROC_REGCTL2, &val); + if (ret) { + dev_err(&indio_dev->dev, + "failed to read IPROC_REGCTL2 %d\n", ret); + return ret; + } + + val |= IPROC_ADC_CONTROLLER_EN; + ret = regmap_write(adc_priv->regmap, IPROC_REGCTL2, val); + if (ret) { + dev_err(&indio_dev->dev, + "failed to write IPROC_REGCTL2 %d\n", ret); + return ret; + } + + for (channel_id = 0; channel_id < indio_dev->num_channels; + channel_id++) { + ret = regmap_write(adc_priv->regmap, + IPROC_ADC_CHANNEL_INTERRUPT_MASK + + IPROC_ADC_CHANNEL_OFFSET * channel_id, 0); + if (ret) { + dev_err(&indio_dev->dev, + "failed to write ADC_CHANNEL_INTERRUPT_MASK %d\n", + ret); + return ret; + } + + ret = regmap_write(adc_priv->regmap, + IPROC_ADC_CHANNEL_INTERRUPT_STATUS + + IPROC_ADC_CHANNEL_OFFSET * channel_id, 0); + if (ret) { + dev_err(&indio_dev->dev, + "failed to write ADC_CHANNEL_INTERRUPT_STATUS %d\n", + ret); + return ret; + } + } + + return 0; +} + +static void iproc_adc_disable(struct iio_dev *indio_dev) +{ + u32 val; + int ret; + struct iproc_adc_priv *adc_priv = iio_priv(indio_dev); + + ret = regmap_read(adc_priv->regmap, IPROC_REGCTL2, &val); + if (ret) { + dev_err(&indio_dev->dev, + "failed to read IPROC_REGCTL2 %d\n", ret); + return; + } + + val &= ~IPROC_ADC_CONTROLLER_EN; + ret = regmap_write(adc_priv->regmap, IPROC_REGCTL2, val); + if (ret) { + dev_err(&indio_dev->dev, + "failed to write IPROC_REGCTL2 %d\n", ret); + return; + } +} + +static int iproc_adc_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, + int *val2, + long mask) +{ + u16 adc_data; + int err; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + err = iproc_adc_do_read(indio_dev, chan->channel, &adc_data); + if (err < 0) + return err; + *val = adc_data; + return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_VOLTAGE: + *val = 1800; + *val2 = 10; + return IIO_VAL_FRACTIONAL_LOG2; + default: + return -EINVAL; + } + default: + return -EINVAL; + } +} + +static const struct iio_info iproc_adc_iio_info = { + .read_raw = &iproc_adc_read_raw, + .driver_module = THIS_MODULE, +}; + +#define IPROC_ADC_CHANNEL(_index, _id) { \ + .type = IIO_VOLTAGE, \ + .indexed = 1, \ + .channel = _index, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ + .datasheet_name = _id, \ +} + +static const struct iio_chan_spec iproc_adc_iio_channels[] = { + IPROC_ADC_CHANNEL(0, "adc0"), + IPROC_ADC_CHANNEL(1, "adc1"), + IPROC_ADC_CHANNEL(2, "adc2"), + IPROC_ADC_CHANNEL(3, "adc3"), + IPROC_ADC_CHANNEL(4, "adc4"), + IPROC_ADC_CHANNEL(5, "adc5"), + IPROC_ADC_CHANNEL(6, "adc6"), + IPROC_ADC_CHANNEL(7, "adc7"), +}; + +static int iproc_adc_probe(struct platform_device *pdev) +{ + struct iproc_adc_priv *adc_priv; + struct iio_dev *indio_dev = NULL; + int ret; + + indio_dev = devm_iio_device_alloc(&pdev->dev, + sizeof(*adc_priv)); + if (!indio_dev) { + dev_err(&pdev->dev, "failed to allocate iio device\n"); + return -ENOMEM; + } + + adc_priv = iio_priv(indio_dev); + platform_set_drvdata(pdev, indio_dev); + + mutex_init(&adc_priv->mutex); + + init_completion(&adc_priv->completion); + + adc_priv->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, + "adc-syscon"); + if (IS_ERR(adc_priv->regmap)) { + dev_err(&pdev->dev, "failed to get handle for tsc syscon\n"); + ret = PTR_ERR(adc_priv->regmap); + return ret; + } + + adc_priv->adc_clk = devm_clk_get(&pdev->dev, "tsc_clk"); + if (IS_ERR(adc_priv->adc_clk)) { + dev_err(&pdev->dev, + "failed getting clock tsc_clk\n"); + ret = PTR_ERR(adc_priv->adc_clk); + return ret; + } + + adc_priv->irqno = platform_get_irq(pdev, 0); + if (adc_priv->irqno <= 0) { + dev_err(&pdev->dev, "platform_get_irq failed\n"); + ret = -ENODEV; + return ret; + } + + ret = regmap_update_bits(adc_priv->regmap, IPROC_REGCTL2, + IPROC_ADC_AUXIN_SCAN_ENA, 0); + if (ret) { + dev_err(&pdev->dev, "failed to write IPROC_REGCTL2 %d\n", ret); + return ret; + } + + ret = devm_request_threaded_irq(&pdev->dev, adc_priv->irqno, + iproc_adc_interrupt_thread, + iproc_adc_interrupt_handler, + IRQF_SHARED, "iproc-adc", indio_dev); + if (ret) { + dev_err(&pdev->dev, "request_irq error %d\n", ret); + return ret; + } + + ret = clk_prepare_enable(adc_priv->adc_clk); + if (ret) { + dev_err(&pdev->dev, + "clk_prepare_enable failed %d\n", ret); + return ret; + } + + ret = iproc_adc_enable(indio_dev); + if (ret) { + dev_err(&pdev->dev, "failed to enable adc %d\n", ret); + goto err_adc_enable; + } + + indio_dev->name = "iproc-static-adc"; + indio_dev->dev.parent = &pdev->dev; + indio_dev->dev.of_node = pdev->dev.of_node; + indio_dev->info = &iproc_adc_iio_info; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->channels = iproc_adc_iio_channels; + indio_dev->num_channels = ARRAY_SIZE(iproc_adc_iio_channels); + + ret = iio_device_register(indio_dev); + if (ret) { + dev_err(&pdev->dev, "iio_device_register failed:err %d\n", ret); + goto err_clk; + } + + return 0; + +err_clk: + iproc_adc_disable(indio_dev); +err_adc_enable: + clk_disable_unprepare(adc_priv->adc_clk); + + return ret; +} + +static int iproc_adc_remove(struct platform_device *pdev) +{ + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct iproc_adc_priv *adc_priv = iio_priv(indio_dev); + + iio_device_unregister(indio_dev); + iproc_adc_disable(indio_dev); + clk_disable_unprepare(adc_priv->adc_clk); + + return 0; +} + +static const struct of_device_id iproc_adc_of_match[] = { + {.compatible = "brcm,iproc-static-adc", }, + { }, +}; +MODULE_DEVICE_TABLE(of, iproc_adc_of_match); + +static struct platform_driver iproc_adc_driver = { + .probe = iproc_adc_probe, + .remove = iproc_adc_remove, + .driver = { + .name = "iproc-static-adc", + .of_match_table = of_match_ptr(iproc_adc_of_match), + }, +}; +module_platform_driver(iproc_adc_driver); + +MODULE_DESCRIPTION("Broadcom iProc ADC controller driver"); +MODULE_AUTHOR("Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/adc/cc10001_adc.c b/drivers/iio/adc/cc10001_adc.c index 8254f529b2a9..91636c0ba5b5 100644 --- a/drivers/iio/adc/cc10001_adc.c +++ b/drivers/iio/adc/cc10001_adc.c @@ -186,7 +186,7 @@ done: if (!sample_invalid) iio_push_to_buffers_with_timestamp(indio_dev, data, - iio_get_time_ns()); + iio_get_time_ns(indio_dev)); iio_trigger_notify_done(indio_dev->trig); return IRQ_HANDLED; diff --git a/drivers/iio/adc/hi8435.c b/drivers/iio/adc/hi8435.c index c73c6c62a6ac..678e8c7ea763 100644 --- a/drivers/iio/adc/hi8435.c +++ b/drivers/iio/adc/hi8435.c @@ -400,7 +400,7 @@ static void hi8435_iio_push_event(struct iio_dev *idev, unsigned int val) iio_push_event(idev, IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, i, IIO_EV_TYPE_THRESH, dir), - iio_get_time_ns()); + iio_get_time_ns(idev)); } } @@ -455,6 +455,7 @@ static int hi8435_probe(struct spi_device *spi) mutex_init(&priv->lock); idev->dev.parent = &spi->dev; + idev->dev.of_node = spi->dev.of_node; idev->name = spi_get_device_id(spi)->name; idev->modes = INDIO_DIRECT_MODE; idev->info = &hi8435_info; diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c index 502f2fbe8aef..955f3fdaf519 100644 --- a/drivers/iio/adc/ina2xx-adc.c +++ b/drivers/iio/adc/ina2xx-adc.c @@ -465,7 +465,7 @@ static int ina2xx_work_buffer(struct iio_dev *indio_dev) s64 time_a, time_b; unsigned int alert; - time_a = iio_get_time_ns(); + time_a = iio_get_time_ns(indio_dev); /* * Because the timer thread and the chip conversion clock @@ -504,7 +504,7 @@ static int ina2xx_work_buffer(struct iio_dev *indio_dev) data[i++] = val; } - time_b = iio_get_time_ns(); + time_b = iio_get_time_ns(indio_dev); iio_push_to_buffers_with_timestamp(indio_dev, (unsigned int *)data, time_a); @@ -554,7 +554,7 @@ static int ina2xx_buffer_enable(struct iio_dev *indio_dev) dev_dbg(&indio_dev->dev, "Async readout mode: %d\n", chip->allow_async_readout); - chip->prev_ns = iio_get_time_ns(); + chip->prev_ns = iio_get_time_ns(indio_dev); chip->task = kthread_run(ina2xx_capture_thread, (void *)indio_dev, "%s:%d-%uus", indio_dev->name, indio_dev->id, @@ -691,6 +691,7 @@ static int ina2xx_probe(struct i2c_client *client, indio_dev->modes = INDIO_DIRECT_MODE | INDIO_BUFFER_SOFTWARE; indio_dev->dev.parent = &client->dev; + indio_dev->dev.of_node = client->dev.of_node; indio_dev->channels = ina2xx_channels; indio_dev->num_channels = ARRAY_SIZE(ina2xx_channels); indio_dev->name = id->name; diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c index 41d495c6035e..712fbd2b1f16 100644 --- a/drivers/iio/adc/max1027.c +++ b/drivers/iio/adc/max1027.c @@ -426,6 +426,7 @@ static int max1027_probe(struct spi_device *spi) indio_dev->name = spi_get_device_id(spi)->name; indio_dev->dev.parent = &spi->dev; + indio_dev->dev.of_node = spi->dev.of_node; indio_dev->info = &max1027_info; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = st->info->channels; diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c index 998dc3caad4c..841a13c9b6ea 100644 --- a/drivers/iio/adc/max1363.c +++ b/drivers/iio/adc/max1363.c @@ -25,6 +25,8 @@ #include <linux/slab.h> #include <linux/err.h> #include <linux/module.h> +#include <linux/of.h> +#include <linux/of_device.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -788,7 +790,7 @@ static irqreturn_t max1363_event_handler(int irq, void *private) { struct iio_dev *indio_dev = private; struct max1363_state *st = iio_priv(indio_dev); - s64 timestamp = iio_get_time_ns(); + s64 timestamp = iio_get_time_ns(indio_dev); unsigned long mask, loc; u8 rx; u8 tx[2] = { st->setupbyte, @@ -1506,7 +1508,8 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p) if (b_sent < 0) goto done_free; - iio_push_to_buffers_with_timestamp(indio_dev, rxbuf, iio_get_time_ns()); + iio_push_to_buffers_with_timestamp(indio_dev, rxbuf, + iio_get_time_ns(indio_dev)); done_free: kfree(rxbuf); @@ -1516,6 +1519,56 @@ done: return IRQ_HANDLED; } +#ifdef CONFIG_OF + +#define MAX1363_COMPATIBLE(of_compatible, cfg) { \ + .compatible = of_compatible, \ + .data = &max1363_chip_info_tbl[cfg], \ +} + +static const struct of_device_id max1363_of_match[] = { + MAX1363_COMPATIBLE("maxim,max1361", max1361), + MAX1363_COMPATIBLE("maxim,max1362", max1362), + MAX1363_COMPATIBLE("maxim,max1363", max1363), + MAX1363_COMPATIBLE("maxim,max1364", max1364), + MAX1363_COMPATIBLE("maxim,max1036", max1036), + MAX1363_COMPATIBLE("maxim,max1037", max1037), + MAX1363_COMPATIBLE("maxim,max1038", max1038), + MAX1363_COMPATIBLE("maxim,max1039", max1039), + MAX1363_COMPATIBLE("maxim,max1136", max1136), + MAX1363_COMPATIBLE("maxim,max1137", max1137), + MAX1363_COMPATIBLE("maxim,max1138", max1138), + MAX1363_COMPATIBLE("maxim,max1139", max1139), + MAX1363_COMPATIBLE("maxim,max1236", max1236), + MAX1363_COMPATIBLE("maxim,max1237", max1237), + MAX1363_COMPATIBLE("maxim,max1238", max1238), + MAX1363_COMPATIBLE("maxim,max1239", max1239), + MAX1363_COMPATIBLE("maxim,max11600", max11600), + MAX1363_COMPATIBLE("maxim,max11601", max11601), + MAX1363_COMPATIBLE("maxim,max11602", max11602), + MAX1363_COMPATIBLE("maxim,max11603", max11603), + MAX1363_COMPATIBLE("maxim,max11604", max11604), + MAX1363_COMPATIBLE("maxim,max11605", max11605), + MAX1363_COMPATIBLE("maxim,max11606", max11606), + MAX1363_COMPATIBLE("maxim,max11607", max11607), + MAX1363_COMPATIBLE("maxim,max11608", max11608), + MAX1363_COMPATIBLE("maxim,max11609", max11609), + MAX1363_COMPATIBLE("maxim,max11610", max11610), + MAX1363_COMPATIBLE("maxim,max11611", max11611), + MAX1363_COMPATIBLE("maxim,max11612", max11612), + MAX1363_COMPATIBLE("maxim,max11613", max11613), + MAX1363_COMPATIBLE("maxim,max11614", max11614), + MAX1363_COMPATIBLE("maxim,max11615", max11615), + MAX1363_COMPATIBLE("maxim,max11616", max11616), + MAX1363_COMPATIBLE("maxim,max11617", max11617), + MAX1363_COMPATIBLE("maxim,max11644", max11644), + MAX1363_COMPATIBLE("maxim,max11645", max11645), + MAX1363_COMPATIBLE("maxim,max11646", max11646), + MAX1363_COMPATIBLE("maxim,max11647", max11647), + { /* sentinel */ } +}; +#endif + static int max1363_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -1523,6 +1576,7 @@ static int max1363_probe(struct i2c_client *client, struct max1363_state *st; struct iio_dev *indio_dev; struct regulator *vref; + const struct of_device_id *match; indio_dev = devm_iio_device_alloc(&client->dev, sizeof(struct max1363_state)); @@ -1549,7 +1603,12 @@ static int max1363_probe(struct i2c_client *client, /* this is only used for device removal purposes */ i2c_set_clientdata(client, indio_dev); - st->chip_info = &max1363_chip_info_tbl[id->driver_data]; + match = of_match_device(of_match_ptr(max1363_of_match), + &client->dev); + if (match) + st->chip_info = of_device_get_match_data(&client->dev); + else + st->chip_info = &max1363_chip_info_tbl[id->driver_data]; st->client = client; st->vref_uv = st->chip_info->int_vref_mv * 1000; @@ -1587,6 +1646,7 @@ static int max1363_probe(struct i2c_client *client, /* Establish that the iio_dev is a child of the i2c device */ indio_dev->dev.parent = &client->dev; + indio_dev->dev.of_node = client->dev.of_node; indio_dev->name = id->name; indio_dev->channels = st->chip_info->channels; indio_dev->num_channels = st->chip_info->num_channels; @@ -1692,6 +1752,7 @@ MODULE_DEVICE_TABLE(i2c, max1363_id); static struct i2c_driver max1363_driver = { .driver = { .name = "max1363", + .of_match_table = of_match_ptr(max1363_of_match), }, .probe = max1363_probe, .remove = max1363_remove, diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c index a850ca7d1eda..634717ae12f3 100644 --- a/drivers/iio/adc/mcp320x.c +++ b/drivers/iio/adc/mcp320x.c @@ -308,6 +308,7 @@ static int mcp320x_probe(struct spi_device *spi) adc->spi = spi; 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 = &mcp320x_info; diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c index d1172dc1e8e2..254135e07792 100644 --- a/drivers/iio/adc/mcp3422.c +++ b/drivers/iio/adc/mcp3422.c @@ -352,6 +352,7 @@ static int mcp3422_probe(struct i2c_client *client, mutex_init(&adc->lock); indio_dev->dev.parent = &client->dev; + indio_dev->dev.of_node = client->dev.of_node; indio_dev->name = dev_name(&client->dev); indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &mcp3422_info; diff --git a/drivers/iio/adc/nau7802.c b/drivers/iio/adc/nau7802.c index 57365c504093..db9b829ccf0d 100644 --- a/drivers/iio/adc/nau7802.c +++ b/drivers/iio/adc/nau7802.c @@ -433,6 +433,7 @@ static int nau7802_probe(struct i2c_client *client, i2c_set_clientdata(client, indio_dev); indio_dev->dev.parent = &client->dev; + indio_dev->dev.of_node = client->dev.of_node; indio_dev->name = dev_name(&client->dev); indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &nau7802_info; diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c index f8807adc08c4..319172cf7da8 100644 --- a/drivers/iio/adc/ti-adc081c.c +++ b/drivers/iio/adc/ti-adc081c.c @@ -139,7 +139,8 @@ static irqreturn_t adc081c_trigger_handler(int irq, void *p) if (ret < 0) goto out; buf[0] = ret; - iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns()); + iio_push_to_buffers_with_timestamp(indio_dev, buf, + iio_get_time_ns(indio_dev)); out: iio_trigger_notify_done(indio_dev->trig); return IRQ_HANDLED; @@ -185,6 +186,7 @@ static int adc081c_probe(struct i2c_client *client, return err; iio->dev.parent = &client->dev; + iio->dev.of_node = client->dev.of_node; iio->name = dev_name(&client->dev); iio->modes = INDIO_DIRECT_MODE; iio->info = &adc081c_info; diff --git a/drivers/iio/adc/ti-adc0832.c b/drivers/iio/adc/ti-adc0832.c index 0afeac0c9bad..f4ba23effe9a 100644 --- a/drivers/iio/adc/ti-adc0832.c +++ b/drivers/iio/adc/ti-adc0832.c @@ -194,6 +194,7 @@ static int adc0832_probe(struct spi_device *spi) indio_dev->name = spi_get_device_id(spi)->name; indio_dev->dev.parent = &spi->dev; + indio_dev->dev.of_node = spi->dev.of_node; indio_dev->info = &adc0832_info; indio_dev->modes = INDIO_DIRECT_MODE; diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c index bc58867d6e8d..89dfbd31be5c 100644 --- a/drivers/iio/adc/ti-adc128s052.c +++ b/drivers/iio/adc/ti-adc128s052.c @@ -150,6 +150,7 @@ static int adc128_probe(struct spi_device *spi) spi_set_drvdata(spi, indio_dev); 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 = &adc128_info; diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c index 8be192a84893..1ef398770a1f 100644 --- a/drivers/iio/adc/ti-ads1015.c +++ b/drivers/iio/adc/ti-ads1015.c @@ -288,7 +288,8 @@ static irqreturn_t ads1015_trigger_handler(int irq, void *p) buf[0] = res; mutex_unlock(&data->lock); - iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns()); + iio_push_to_buffers_with_timestamp(indio_dev, buf, + iio_get_time_ns(indio_dev)); err: iio_trigger_notify_done(indio_dev->trig); @@ -585,6 +586,7 @@ static int ads1015_probe(struct i2c_client *client, mutex_init(&data->lock); indio_dev->dev.parent = &client->dev; + indio_dev->dev.of_node = client->dev.of_node; indio_dev->name = ADS1015_DRV_NAME; indio_dev->modes = INDIO_DIRECT_MODE; diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c index 03e907028cb6..c400439900af 100644 --- a/drivers/iio/adc/ti-ads8688.c +++ b/drivers/iio/adc/ti-ads8688.c @@ -421,6 +421,7 @@ static int ads8688_probe(struct spi_device *spi) indio_dev->name = spi_get_device_id(spi)->name; indio_dev->dev.parent = &spi->dev; + indio_dev->dev.of_node = spi->dev.of_node; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = st->chip_info->channels; indio_dev->num_channels = st->chip_info->num_channels; diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c index 653bf1379d2e..228a003adeed 100644 --- a/drivers/iio/adc/vf610_adc.c +++ b/drivers/iio/adc/vf610_adc.c @@ -594,7 +594,8 @@ static irqreturn_t vf610_adc_isr(int irq, void *dev_id) if (iio_buffer_enabled(indio_dev)) { info->buffer[0] = info->value; iio_push_to_buffers_with_timestamp(indio_dev, - info->buffer, iio_get_time_ns()); + info->buffer, + iio_get_time_ns(indio_dev)); iio_trigger_notify_done(indio_dev->trig); } else complete(&info->completion); diff --git a/drivers/iio/adc/xilinx-xadc-events.c b/drivers/iio/adc/xilinx-xadc-events.c index edcf3aabd70d..6d5c2a6f4e6e 100644 --- a/drivers/iio/adc/xilinx-xadc-events.c +++ b/drivers/iio/adc/xilinx-xadc-events.c @@ -46,7 +46,7 @@ static void xadc_handle_event(struct iio_dev *indio_dev, unsigned int event) iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(chan->type, chan->channel, IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), - iio_get_time_ns()); + iio_get_time_ns(indio_dev)); } else { /* * For other channels we don't know whether it is a upper or @@ -56,7 +56,7 @@ static void xadc_handle_event(struct iio_dev *indio_dev, unsigned int event) iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(chan->type, chan->channel, IIO_EV_TYPE_THRESH, IIO_EV_DIR_EITHER), - iio_get_time_ns()); + iio_get_time_ns(indio_dev)); } } |