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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-28 17:34:51 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-28 17:34:51 +0300
commit2957975756291d8dbf4f744dbe68278f319b7de7 (patch)
tree168367a320bd8d715cea89f6053b14f87bc7735b /drivers/iio
parentbad0d7a6a7d61f129b9ebffc43acd2056bfb4def (diff)
parentbe15dab9a451155bdf3f5278608fe8dc67e07cc1 (diff)
downloadlinux-rolling-stable.tar.xz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/accel/sca3300.c2
-rw-r--r--drivers/iio/adc/Kconfig2
-rw-r--r--drivers/iio/adc/ad7124.c14
-rw-r--r--drivers/iio/adc/ad7173.c137
-rw-r--r--drivers/iio/adc/ad7380.c1
-rw-r--r--drivers/iio/adc/ad_sigma_delta.c4
-rw-r--r--drivers/iio/adc/rzg2l_adc.c33
-rw-r--r--drivers/iio/imu/bno055/bno055.c11
-rw-r--r--drivers/iio/imu/inv_icm42600/inv_icm42600.h8
-rw-r--r--drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c31
-rw-r--r--drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c22
-rw-r--r--drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h10
-rw-r--r--drivers/iio/imu/inv_icm42600/inv_icm42600_core.c6
-rw-r--r--drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c41
-rw-r--r--drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c12
-rw-r--r--drivers/iio/light/as73211.c2
-rw-r--r--drivers/iio/pressure/bmp280-core.c9
-rw-r--r--drivers/iio/proximity/isl29501.c16
-rw-r--r--drivers/iio/temperature/maxim_thermocouple.c26
19 files changed, 237 insertions, 150 deletions
diff --git a/drivers/iio/accel/sca3300.c b/drivers/iio/accel/sca3300.c
index 67416a406e2f..d5e9fa58d0ba 100644
--- a/drivers/iio/accel/sca3300.c
+++ b/drivers/iio/accel/sca3300.c
@@ -479,7 +479,7 @@ static irqreturn_t sca3300_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct sca3300_data *data = iio_priv(indio_dev);
int bit, ret, val, i = 0;
- IIO_DECLARE_BUFFER_WITH_TS(s16, channels, SCA3300_SCAN_MAX);
+ IIO_DECLARE_BUFFER_WITH_TS(s16, channels, SCA3300_SCAN_MAX) = { };
iio_for_each_active_channel(indio_dev, bit) {
ret = sca3300_read_reg(data, indio_dev->channels[bit].address, &val);
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index ea3ba1397392..a632c74c1fc5 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -1257,7 +1257,7 @@ config RN5T618_ADC
config ROHM_BD79124
tristate "Rohm BD79124 ADC driver"
- depends on I2C
+ depends on I2C && GPIOLIB
select REGMAP_I2C
select IIO_ADC_HELPER
help
diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c
index 92596f15e797..bdd2b2b5bac1 100644
--- a/drivers/iio/adc/ad7124.c
+++ b/drivers/iio/adc/ad7124.c
@@ -855,7 +855,7 @@ enum {
static int ad7124_syscalib_locked(struct ad7124_state *st, const struct iio_chan_spec *chan)
{
struct device *dev = &st->sd.spi->dev;
- struct ad7124_channel *ch = &st->channels[chan->channel];
+ struct ad7124_channel *ch = &st->channels[chan->address];
int ret;
if (ch->syscalib_mode == AD7124_SYSCALIB_ZERO_SCALE) {
@@ -871,8 +871,8 @@ static int ad7124_syscalib_locked(struct ad7124_state *st, const struct iio_chan
if (ret < 0)
return ret;
- dev_dbg(dev, "offset for channel %d after zero-scale calibration: 0x%x\n",
- chan->channel, ch->cfg.calibration_offset);
+ dev_dbg(dev, "offset for channel %lu after zero-scale calibration: 0x%x\n",
+ chan->address, ch->cfg.calibration_offset);
} else {
ch->cfg.calibration_gain = st->gain_default;
@@ -886,8 +886,8 @@ static int ad7124_syscalib_locked(struct ad7124_state *st, const struct iio_chan
if (ret < 0)
return ret;
- dev_dbg(dev, "gain for channel %d after full-scale calibration: 0x%x\n",
- chan->channel, ch->cfg.calibration_gain);
+ dev_dbg(dev, "gain for channel %lu after full-scale calibration: 0x%x\n",
+ chan->address, ch->cfg.calibration_gain);
}
return 0;
@@ -930,7 +930,7 @@ static int ad7124_set_syscalib_mode(struct iio_dev *indio_dev,
{
struct ad7124_state *st = iio_priv(indio_dev);
- st->channels[chan->channel].syscalib_mode = mode;
+ st->channels[chan->address].syscalib_mode = mode;
return 0;
}
@@ -940,7 +940,7 @@ static int ad7124_get_syscalib_mode(struct iio_dev *indio_dev,
{
struct ad7124_state *st = iio_priv(indio_dev);
- return st->channels[chan->channel].syscalib_mode;
+ return st->channels[chan->address].syscalib_mode;
}
static const struct iio_enum ad7124_syscalib_mode_enum = {
diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c
index b3e6bd2a55d7..5b57c29b6b34 100644
--- a/drivers/iio/adc/ad7173.c
+++ b/drivers/iio/adc/ad7173.c
@@ -200,7 +200,7 @@ struct ad7173_channel_config {
/*
* Following fields are used to compare equality. If you
* make adaptations in it, you most likely also have to adapt
- * ad7173_find_live_config(), too.
+ * ad7173_is_setup_equal(), too.
*/
struct_group(config_props,
bool bipolar;
@@ -319,7 +319,7 @@ static int ad7173_set_syscalib_mode(struct iio_dev *indio_dev,
{
struct ad7173_state *st = iio_priv(indio_dev);
- st->channels[chan->channel].syscalib_mode = mode;
+ st->channels[chan->address].syscalib_mode = mode;
return 0;
}
@@ -329,7 +329,7 @@ static int ad7173_get_syscalib_mode(struct iio_dev *indio_dev,
{
struct ad7173_state *st = iio_priv(indio_dev);
- return st->channels[chan->channel].syscalib_mode;
+ return st->channels[chan->address].syscalib_mode;
}
static ssize_t ad7173_write_syscalib(struct iio_dev *indio_dev,
@@ -348,7 +348,7 @@ static ssize_t ad7173_write_syscalib(struct iio_dev *indio_dev,
if (!iio_device_claim_direct(indio_dev))
return -EBUSY;
- mode = st->channels[chan->channel].syscalib_mode;
+ mode = st->channels[chan->address].syscalib_mode;
if (sys_calib) {
if (mode == AD7173_SYSCALIB_ZERO_SCALE)
ret = ad_sd_calibrate(&st->sd, AD7173_MODE_CAL_SYS_ZERO,
@@ -392,13 +392,12 @@ static int ad7173_calibrate_all(struct ad7173_state *st, struct iio_dev *indio_d
if (indio_dev->channels[i].type != IIO_VOLTAGE)
continue;
- ret = ad_sd_calibrate(&st->sd, AD7173_MODE_CAL_INT_ZERO, st->channels[i].ain);
+ ret = ad_sd_calibrate(&st->sd, AD7173_MODE_CAL_INT_ZERO, i);
if (ret < 0)
return ret;
if (st->info->has_internal_fs_calibration) {
- ret = ad_sd_calibrate(&st->sd, AD7173_MODE_CAL_INT_FULL,
- st->channels[i].ain);
+ ret = ad_sd_calibrate(&st->sd, AD7173_MODE_CAL_INT_FULL, i);
if (ret < 0)
return ret;
}
@@ -563,12 +562,19 @@ static void ad7173_reset_usage_cnts(struct ad7173_state *st)
st->config_usage_counter = 0;
}
-static struct ad7173_channel_config *
-ad7173_find_live_config(struct ad7173_state *st, struct ad7173_channel_config *cfg)
+/**
+ * ad7173_is_setup_equal - Compare two channel setups
+ * @cfg1: First channel configuration
+ * @cfg2: Second channel configuration
+ *
+ * Compares all configuration options that affect the registers connected to
+ * SETUP_SEL, namely CONFIGx, FILTERx, GAINx and OFFSETx.
+ *
+ * Returns: true if the setups are identical, false otherwise
+ */
+static bool ad7173_is_setup_equal(const struct ad7173_channel_config *cfg1,
+ const struct ad7173_channel_config *cfg2)
{
- struct ad7173_channel_config *cfg_aux;
- int i;
-
/*
* This is just to make sure that the comparison is adapted after
* struct ad7173_channel_config was changed.
@@ -581,14 +587,22 @@ ad7173_find_live_config(struct ad7173_state *st, struct ad7173_channel_config *c
u8 ref_sel;
}));
+ return cfg1->bipolar == cfg2->bipolar &&
+ cfg1->input_buf == cfg2->input_buf &&
+ cfg1->odr == cfg2->odr &&
+ cfg1->ref_sel == cfg2->ref_sel;
+}
+
+static struct ad7173_channel_config *
+ad7173_find_live_config(struct ad7173_state *st, struct ad7173_channel_config *cfg)
+{
+ struct ad7173_channel_config *cfg_aux;
+ int i;
+
for (i = 0; i < st->num_channels; i++) {
cfg_aux = &st->channels[i].cfg;
- if (cfg_aux->live &&
- cfg->bipolar == cfg_aux->bipolar &&
- cfg->input_buf == cfg_aux->input_buf &&
- cfg->odr == cfg_aux->odr &&
- cfg->ref_sel == cfg_aux->ref_sel)
+ if (cfg_aux->live && ad7173_is_setup_equal(cfg, cfg_aux))
return cfg_aux;
}
return NULL;
@@ -772,10 +786,26 @@ static const struct ad_sigma_delta_info ad7173_sigma_delta_info_8_slots = {
.num_slots = 8,
};
+static const struct ad_sigma_delta_info ad7173_sigma_delta_info_16_slots = {
+ .set_channel = ad7173_set_channel,
+ .append_status = ad7173_append_status,
+ .disable_all = ad7173_disable_all,
+ .disable_one = ad7173_disable_one,
+ .set_mode = ad7173_set_mode,
+ .has_registers = true,
+ .has_named_irqs = true,
+ .addr_shift = 0,
+ .read_mask = BIT(6),
+ .status_ch_mask = GENMASK(3, 0),
+ .data_reg = AD7173_REG_DATA,
+ .num_resetclks = 64,
+ .num_slots = 16,
+};
+
static const struct ad7173_device_info ad4111_device_info = {
.name = "ad4111",
.id = AD4111_ID,
- .sd_info = &ad7173_sigma_delta_info_8_slots,
+ .sd_info = &ad7173_sigma_delta_info_16_slots,
.num_voltage_in_div = 8,
.num_channels = 16,
.num_configs = 8,
@@ -797,7 +827,7 @@ static const struct ad7173_device_info ad4111_device_info = {
static const struct ad7173_device_info ad4112_device_info = {
.name = "ad4112",
.id = AD4112_ID,
- .sd_info = &ad7173_sigma_delta_info_8_slots,
+ .sd_info = &ad7173_sigma_delta_info_16_slots,
.num_voltage_in_div = 8,
.num_channels = 16,
.num_configs = 8,
@@ -818,7 +848,7 @@ static const struct ad7173_device_info ad4112_device_info = {
static const struct ad7173_device_info ad4113_device_info = {
.name = "ad4113",
.id = AD4113_ID,
- .sd_info = &ad7173_sigma_delta_info_8_slots,
+ .sd_info = &ad7173_sigma_delta_info_16_slots,
.num_voltage_in_div = 8,
.num_channels = 16,
.num_configs = 8,
@@ -837,7 +867,7 @@ static const struct ad7173_device_info ad4113_device_info = {
static const struct ad7173_device_info ad4114_device_info = {
.name = "ad4114",
.id = AD4114_ID,
- .sd_info = &ad7173_sigma_delta_info_8_slots,
+ .sd_info = &ad7173_sigma_delta_info_16_slots,
.num_voltage_in_div = 16,
.num_channels = 16,
.num_configs = 8,
@@ -856,7 +886,7 @@ static const struct ad7173_device_info ad4114_device_info = {
static const struct ad7173_device_info ad4115_device_info = {
.name = "ad4115",
.id = AD4115_ID,
- .sd_info = &ad7173_sigma_delta_info_8_slots,
+ .sd_info = &ad7173_sigma_delta_info_16_slots,
.num_voltage_in_div = 16,
.num_channels = 16,
.num_configs = 8,
@@ -875,7 +905,7 @@ static const struct ad7173_device_info ad4115_device_info = {
static const struct ad7173_device_info ad4116_device_info = {
.name = "ad4116",
.id = AD4116_ID,
- .sd_info = &ad7173_sigma_delta_info_8_slots,
+ .sd_info = &ad7173_sigma_delta_info_16_slots,
.num_voltage_in_div = 11,
.num_channels = 16,
.num_configs = 8,
@@ -894,7 +924,7 @@ static const struct ad7173_device_info ad4116_device_info = {
static const struct ad7173_device_info ad7172_2_device_info = {
.name = "ad7172-2",
.id = AD7172_2_ID,
- .sd_info = &ad7173_sigma_delta_info_8_slots,
+ .sd_info = &ad7173_sigma_delta_info_4_slots,
.num_voltage_in = 5,
.num_channels = 4,
.num_configs = 4,
@@ -927,7 +957,7 @@ static const struct ad7173_device_info ad7172_4_device_info = {
static const struct ad7173_device_info ad7173_8_device_info = {
.name = "ad7173-8",
.id = AD7173_ID,
- .sd_info = &ad7173_sigma_delta_info_8_slots,
+ .sd_info = &ad7173_sigma_delta_info_16_slots,
.num_voltage_in = 17,
.num_channels = 16,
.num_configs = 8,
@@ -944,7 +974,7 @@ static const struct ad7173_device_info ad7173_8_device_info = {
static const struct ad7173_device_info ad7175_2_device_info = {
.name = "ad7175-2",
.id = AD7175_2_ID,
- .sd_info = &ad7173_sigma_delta_info_8_slots,
+ .sd_info = &ad7173_sigma_delta_info_4_slots,
.num_voltage_in = 5,
.num_channels = 4,
.num_configs = 4,
@@ -961,7 +991,7 @@ static const struct ad7173_device_info ad7175_2_device_info = {
static const struct ad7173_device_info ad7175_8_device_info = {
.name = "ad7175-8",
.id = AD7175_8_ID,
- .sd_info = &ad7173_sigma_delta_info_8_slots,
+ .sd_info = &ad7173_sigma_delta_info_16_slots,
.num_voltage_in = 17,
.num_channels = 16,
.num_configs = 8,
@@ -1214,7 +1244,7 @@ static int ad7173_update_scan_mode(struct iio_dev *indio_dev,
const unsigned long *scan_mask)
{
struct ad7173_state *st = iio_priv(indio_dev);
- int i, ret;
+ int i, j, k, ret;
for (i = 0; i < indio_dev->num_channels; i++) {
if (test_bit(i, scan_mask))
@@ -1225,6 +1255,54 @@ static int ad7173_update_scan_mode(struct iio_dev *indio_dev,
return ret;
}
+ /*
+ * On some chips, there are more channels that setups, so if there were
+ * more unique setups requested than the number of available slots,
+ * ad7173_set_channel() will have written over some of the slots. We
+ * can detect this by making sure each assigned cfg_slot matches the
+ * requested configuration. If it doesn't, we know that the slot was
+ * overwritten by a different channel.
+ */
+ for_each_set_bit(i, scan_mask, indio_dev->num_channels) {
+ const struct ad7173_channel_config *cfg1, *cfg2;
+
+ cfg1 = &st->channels[i].cfg;
+
+ for_each_set_bit(j, scan_mask, indio_dev->num_channels) {
+ cfg2 = &st->channels[j].cfg;
+
+ /*
+ * Only compare configs that are assigned to the same
+ * SETUP_SEL slot and don't compare channel to itself.
+ */
+ if (i == j || cfg1->cfg_slot != cfg2->cfg_slot)
+ continue;
+
+ /*
+ * If we find two different configs trying to use the
+ * same SETUP_SEL slot, then we know that the that we
+ * have too many unique configurations requested for
+ * the available slots and at least one was overwritten.
+ */
+ if (!ad7173_is_setup_equal(cfg1, cfg2)) {
+ /*
+ * At this point, there isn't a way to tell
+ * which setups are actually programmed in the
+ * ADC anymore, so we could read them back to
+ * see, but it is simpler to just turn off all
+ * of the live flags so that everything gets
+ * reprogramed on the next attempt read a sample.
+ */
+ for (k = 0; k < st->num_channels; k++)
+ st->channels[k].cfg.live = false;
+
+ dev_err(&st->sd.spi->dev,
+ "Too many unique channel configurations requested for scan\n");
+ return -EINVAL;
+ }
+ }
+ }
+
return 0;
}
@@ -1580,6 +1658,7 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev)
chan_st_priv->cfg.bipolar = false;
chan_st_priv->cfg.input_buf = st->info->has_input_buf;
chan_st_priv->cfg.ref_sel = AD7173_SETUP_REF_SEL_INT_REF;
+ chan_st_priv->cfg.odr = st->info->odr_start_value;
chan_st_priv->cfg.openwire_comp_chan = -1;
st->adc_mode |= AD7173_ADC_MODE_REF_EN;
if (st->info->data_reg_only_16bit)
@@ -1646,7 +1725,7 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev)
chan->scan_index = chan_index;
chan->channel = ain[0];
chan_st_priv->cfg.input_buf = st->info->has_input_buf;
- chan_st_priv->cfg.odr = 0;
+ chan_st_priv->cfg.odr = st->info->odr_start_value;
chan_st_priv->cfg.openwire_comp_chan = -1;
chan_st_priv->cfg.bipolar = fwnode_property_read_bool(child, "bipolar");
diff --git a/drivers/iio/adc/ad7380.c b/drivers/iio/adc/ad7380.c
index cabf5511d116..3773d7277080 100644
--- a/drivers/iio/adc/ad7380.c
+++ b/drivers/iio/adc/ad7380.c
@@ -873,6 +873,7 @@ static const struct ad7380_chip_info adaq4381_4_chip_info = {
.has_hardware_gain = true,
.available_scan_masks = ad7380_4_channel_scan_masks,
.timing_specs = &ad7380_4_timing,
+ .max_conversion_rate_hz = 4 * MEGA,
};
static const struct spi_offload_config ad7380_offload_config = {
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index 6b3ef7ef403e..debd59b39894 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -520,7 +520,7 @@ err_unlock:
return ret;
}
-static int ad_sd_buffer_postdisable(struct iio_dev *indio_dev)
+static int ad_sd_buffer_predisable(struct iio_dev *indio_dev)
{
struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
@@ -644,7 +644,7 @@ static bool ad_sd_validate_scan_mask(struct iio_dev *indio_dev, const unsigned l
static const struct iio_buffer_setup_ops ad_sd_buffer_setup_ops = {
.postenable = &ad_sd_buffer_postenable,
- .postdisable = &ad_sd_buffer_postdisable,
+ .predisable = &ad_sd_buffer_predisable,
.validate_scan_mask = &ad_sd_validate_scan_mask,
};
diff --git a/drivers/iio/adc/rzg2l_adc.c b/drivers/iio/adc/rzg2l_adc.c
index 9674d48074c9..cadb0446bc29 100644
--- a/drivers/iio/adc/rzg2l_adc.c
+++ b/drivers/iio/adc/rzg2l_adc.c
@@ -89,7 +89,6 @@ struct rzg2l_adc {
struct completion completion;
struct mutex lock;
u16 last_val[RZG2L_ADC_MAX_CHANNELS];
- bool was_rpm_active;
};
/**
@@ -428,6 +427,8 @@ static int rzg2l_adc_probe(struct platform_device *pdev)
if (!indio_dev)
return -ENOMEM;
+ platform_set_drvdata(pdev, indio_dev);
+
adc = iio_priv(indio_dev);
adc->hw_params = device_get_match_data(dev);
@@ -460,8 +461,6 @@ static int rzg2l_adc_probe(struct platform_device *pdev)
if (ret)
return ret;
- platform_set_drvdata(pdev, indio_dev);
-
ret = rzg2l_adc_hw_init(dev, adc);
if (ret)
return dev_err_probe(&pdev->dev, ret,
@@ -541,14 +540,9 @@ static int rzg2l_adc_suspend(struct device *dev)
};
int ret;
- if (pm_runtime_suspended(dev)) {
- adc->was_rpm_active = false;
- } else {
- ret = pm_runtime_force_suspend(dev);
- if (ret)
- return ret;
- adc->was_rpm_active = true;
- }
+ ret = pm_runtime_force_suspend(dev);
+ if (ret)
+ return ret;
ret = reset_control_bulk_assert(ARRAY_SIZE(resets), resets);
if (ret)
@@ -557,9 +551,7 @@ static int rzg2l_adc_suspend(struct device *dev)
return 0;
rpm_restore:
- if (adc->was_rpm_active)
- pm_runtime_force_resume(dev);
-
+ pm_runtime_force_resume(dev);
return ret;
}
@@ -577,11 +569,9 @@ static int rzg2l_adc_resume(struct device *dev)
if (ret)
return ret;
- if (adc->was_rpm_active) {
- ret = pm_runtime_force_resume(dev);
- if (ret)
- goto resets_restore;
- }
+ ret = pm_runtime_force_resume(dev);
+ if (ret)
+ goto resets_restore;
ret = rzg2l_adc_hw_init(dev, adc);
if (ret)
@@ -590,10 +580,7 @@ static int rzg2l_adc_resume(struct device *dev)
return 0;
rpm_restore:
- if (adc->was_rpm_active) {
- pm_runtime_mark_last_busy(dev);
- pm_runtime_put_autosuspend(dev);
- }
+ pm_runtime_force_suspend(dev);
resets_restore:
reset_control_bulk_assert(ARRAY_SIZE(resets), resets);
return ret;
diff --git a/drivers/iio/imu/bno055/bno055.c b/drivers/iio/imu/bno055/bno055.c
index 597c402b98de..143ccc4f4331 100644
--- a/drivers/iio/imu/bno055/bno055.c
+++ b/drivers/iio/imu/bno055/bno055.c
@@ -118,6 +118,7 @@ struct bno055_sysfs_attr {
int len;
int *fusion_vals;
int *hw_xlate;
+ int hw_xlate_len;
int type;
};
@@ -170,20 +171,24 @@ static int bno055_gyr_scale_vals[] = {
1000, 1877467, 2000, 1877467,
};
+static int bno055_gyr_scale_hw_xlate[] = {0, 1, 2, 3, 4};
static struct bno055_sysfs_attr bno055_gyr_scale = {
.vals = bno055_gyr_scale_vals,
.len = ARRAY_SIZE(bno055_gyr_scale_vals),
.fusion_vals = (int[]){1, 900},
- .hw_xlate = (int[]){4, 3, 2, 1, 0},
+ .hw_xlate = bno055_gyr_scale_hw_xlate,
+ .hw_xlate_len = ARRAY_SIZE(bno055_gyr_scale_hw_xlate),
.type = IIO_VAL_FRACTIONAL,
};
static int bno055_gyr_lpf_vals[] = {12, 23, 32, 47, 64, 116, 230, 523};
+static int bno055_gyr_lpf_hw_xlate[] = {5, 4, 7, 3, 6, 2, 1, 0};
static struct bno055_sysfs_attr bno055_gyr_lpf = {
.vals = bno055_gyr_lpf_vals,
.len = ARRAY_SIZE(bno055_gyr_lpf_vals),
.fusion_vals = (int[]){32},
- .hw_xlate = (int[]){5, 4, 7, 3, 6, 2, 1, 0},
+ .hw_xlate = bno055_gyr_lpf_hw_xlate,
+ .hw_xlate_len = ARRAY_SIZE(bno055_gyr_lpf_hw_xlate),
.type = IIO_VAL_INT,
};
@@ -561,7 +566,7 @@ static int bno055_get_regmask(struct bno055_priv *priv, int *val, int *val2,
idx = (hwval & mask) >> shift;
if (attr->hw_xlate)
- for (i = 0; i < attr->len; i++)
+ for (i = 0; i < attr->hw_xlate_len; i++)
if (attr->hw_xlate[i] == idx) {
idx = i;
break;
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600.h b/drivers/iio/imu/inv_icm42600/inv_icm42600.h
index f893dbe69965..55ed1ddaa8cb 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600.h
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600.h
@@ -164,11 +164,11 @@ struct inv_icm42600_state {
struct inv_icm42600_suspended suspended;
struct iio_dev *indio_gyro;
struct iio_dev *indio_accel;
- uint8_t buffer[2] __aligned(IIO_DMA_MINALIGN);
+ u8 buffer[2] __aligned(IIO_DMA_MINALIGN);
struct inv_icm42600_fifo fifo;
struct {
- int64_t gyro;
- int64_t accel;
+ s64 gyro;
+ s64 accel;
} timestamp;
};
@@ -410,7 +410,7 @@ const struct iio_mount_matrix *
inv_icm42600_get_mount_matrix(const struct iio_dev *indio_dev,
const struct iio_chan_spec *chan);
-uint32_t inv_icm42600_odr_to_period(enum inv_icm42600_odr odr);
+u32 inv_icm42600_odr_to_period(enum inv_icm42600_odr odr);
int inv_icm42600_set_accel_conf(struct inv_icm42600_state *st,
struct inv_icm42600_sensor_conf *conf,
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c
index e6cd9dcb0687..8a6f09e68f49 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c
@@ -177,7 +177,7 @@ static const struct iio_chan_spec inv_icm42600_accel_channels[] = {
*/
struct inv_icm42600_accel_buffer {
struct inv_icm42600_fifo_sensor_data accel;
- int16_t temp;
+ s16 temp;
aligned_s64 timestamp;
};
@@ -241,7 +241,7 @@ out_unlock:
static int inv_icm42600_accel_read_sensor(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
- int16_t *val)
+ s16 *val)
{
struct inv_icm42600_state *st = iio_device_get_drvdata(indio_dev);
struct inv_icm42600_sensor_state *accel_st = iio_priv(indio_dev);
@@ -284,7 +284,7 @@ static int inv_icm42600_accel_read_sensor(struct iio_dev *indio_dev,
if (ret)
goto exit;
- *val = (int16_t)be16_to_cpup(data);
+ *val = (s16)be16_to_cpup(data);
if (*val == INV_ICM42600_DATA_INVALID)
ret = -EINVAL;
exit:
@@ -492,11 +492,11 @@ static int inv_icm42600_accel_read_offset(struct inv_icm42600_state *st,
int *val, int *val2)
{
struct device *dev = regmap_get_device(st->map);
- int64_t val64;
- int32_t bias;
+ s64 val64;
+ s32 bias;
unsigned int reg;
- int16_t offset;
- uint8_t data[2];
+ s16 offset;
+ u8 data[2];
int ret;
if (chan->type != IIO_ACCEL)
@@ -550,7 +550,7 @@ static int inv_icm42600_accel_read_offset(struct inv_icm42600_state *st,
* result in micro (1000000)
* (offset * 5 * 9.806650 * 1000000) / 10000
*/
- val64 = (int64_t)offset * 5LL * 9806650LL;
+ val64 = (s64)offset * 5LL * 9806650LL;
/* for rounding, add + or - divisor (10000) divided by 2 */
if (val64 >= 0)
val64 += 10000LL / 2LL;
@@ -568,10 +568,10 @@ static int inv_icm42600_accel_write_offset(struct inv_icm42600_state *st,
int val, int val2)
{
struct device *dev = regmap_get_device(st->map);
- int64_t val64;
- int32_t min, max;
+ s64 val64;
+ s32 min, max;
unsigned int reg, regval;
- int16_t offset;
+ s16 offset;
int ret;
if (chan->type != IIO_ACCEL)
@@ -596,7 +596,7 @@ static int inv_icm42600_accel_write_offset(struct inv_icm42600_state *st,
inv_icm42600_accel_calibbias[1];
max = inv_icm42600_accel_calibbias[4] * 1000000L +
inv_icm42600_accel_calibbias[5];
- val64 = (int64_t)val * 1000000LL + (int64_t)val2;
+ val64 = (s64)val * 1000000LL + (s64)val2;
if (val64 < min || val64 > max)
return -EINVAL;
@@ -671,7 +671,7 @@ static int inv_icm42600_accel_read_raw(struct iio_dev *indio_dev,
int *val, int *val2, long mask)
{
struct inv_icm42600_state *st = iio_device_get_drvdata(indio_dev);
- int16_t data;
+ s16 data;
int ret;
switch (chan->type) {
@@ -902,7 +902,8 @@ int inv_icm42600_accel_parse_fifo(struct iio_dev *indio_dev)
const int8_t *temp;
unsigned int odr;
int64_t ts_val;
- struct inv_icm42600_accel_buffer buffer;
+ /* buffer is copied to userspace, zeroing it to avoid any data leak */
+ struct inv_icm42600_accel_buffer buffer = { };
/* parse all fifo packets */
for (i = 0, no = 0; i < st->fifo.count; i += size, ++no) {
@@ -921,8 +922,6 @@ int inv_icm42600_accel_parse_fifo(struct iio_dev *indio_dev)
inv_sensors_timestamp_apply_odr(ts, st->fifo.period,
st->fifo.nb.total, no);
- /* buffer is copied to userspace, zeroing it to avoid any data leak */
- memset(&buffer, 0, sizeof(buffer));
memcpy(&buffer.accel, accel, sizeof(buffer.accel));
/* convert 8 bits FIFO temperature in high resolution format */
buffer.temp = temp ? (*temp * 64) : 0;
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c
index aae7c56481a3..00b9db52ca78 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.c
@@ -26,28 +26,28 @@
#define INV_ICM42600_FIFO_HEADER_ODR_GYRO BIT(0)
struct inv_icm42600_fifo_1sensor_packet {
- uint8_t header;
+ u8 header;
struct inv_icm42600_fifo_sensor_data data;
- int8_t temp;
+ s8 temp;
} __packed;
#define INV_ICM42600_FIFO_1SENSOR_PACKET_SIZE 8
struct inv_icm42600_fifo_2sensors_packet {
- uint8_t header;
+ u8 header;
struct inv_icm42600_fifo_sensor_data accel;
struct inv_icm42600_fifo_sensor_data gyro;
- int8_t temp;
+ s8 temp;
__be16 timestamp;
} __packed;
#define INV_ICM42600_FIFO_2SENSORS_PACKET_SIZE 16
ssize_t inv_icm42600_fifo_decode_packet(const void *packet, const void **accel,
- const void **gyro, const int8_t **temp,
+ const void **gyro, const s8 **temp,
const void **timestamp, unsigned int *odr)
{
const struct inv_icm42600_fifo_1sensor_packet *pack1 = packet;
const struct inv_icm42600_fifo_2sensors_packet *pack2 = packet;
- uint8_t header = *((const uint8_t *)packet);
+ u8 header = *((const u8 *)packet);
/* FIFO empty */
if (header & INV_ICM42600_FIFO_HEADER_MSG) {
@@ -100,7 +100,7 @@ ssize_t inv_icm42600_fifo_decode_packet(const void *packet, const void **accel,
void inv_icm42600_buffer_update_fifo_period(struct inv_icm42600_state *st)
{
- uint32_t period_gyro, period_accel, period;
+ u32 period_gyro, period_accel, period;
if (st->fifo.en & INV_ICM42600_SENSOR_GYRO)
period_gyro = inv_icm42600_odr_to_period(st->conf.gyro.odr);
@@ -204,8 +204,8 @@ int inv_icm42600_buffer_update_watermark(struct inv_icm42600_state *st)
{
size_t packet_size, wm_size;
unsigned int wm_gyro, wm_accel, watermark;
- uint32_t period_gyro, period_accel, period;
- uint32_t latency_gyro, latency_accel, latency;
+ u32 period_gyro, period_accel, period;
+ u32 latency_gyro, latency_accel, latency;
bool restore;
__le16 raw_wm;
int ret;
@@ -459,7 +459,7 @@ int inv_icm42600_buffer_fifo_read(struct inv_icm42600_state *st,
__be16 *raw_fifo_count;
ssize_t i, size;
const void *accel, *gyro, *timestamp;
- const int8_t *temp;
+ const s8 *temp;
unsigned int odr;
int ret;
@@ -550,7 +550,7 @@ int inv_icm42600_buffer_hwfifo_flush(struct inv_icm42600_state *st,
struct inv_icm42600_sensor_state *gyro_st = iio_priv(st->indio_gyro);
struct inv_icm42600_sensor_state *accel_st = iio_priv(st->indio_accel);
struct inv_sensors_timestamp *ts;
- int64_t gyro_ts, accel_ts;
+ s64 gyro_ts, accel_ts;
int ret;
gyro_ts = iio_get_time_ns(st->indio_gyro);
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h b/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h
index f6c85daf42b0..ffca4da1e249 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_buffer.h
@@ -28,7 +28,7 @@ struct inv_icm42600_state;
struct inv_icm42600_fifo {
unsigned int on;
unsigned int en;
- uint32_t period;
+ u32 period;
struct {
unsigned int gyro;
unsigned int accel;
@@ -41,7 +41,7 @@ struct inv_icm42600_fifo {
size_t accel;
size_t total;
} nb;
- uint8_t data[2080] __aligned(IIO_DMA_MINALIGN);
+ u8 data[2080] __aligned(IIO_DMA_MINALIGN);
};
/* FIFO data packet */
@@ -52,7 +52,7 @@ struct inv_icm42600_fifo_sensor_data {
} __packed;
#define INV_ICM42600_FIFO_DATA_INVALID -32768
-static inline int16_t inv_icm42600_fifo_get_sensor_data(__be16 d)
+static inline s16 inv_icm42600_fifo_get_sensor_data(__be16 d)
{
return be16_to_cpu(d);
}
@@ -60,7 +60,7 @@ static inline int16_t inv_icm42600_fifo_get_sensor_data(__be16 d)
static inline bool
inv_icm42600_fifo_is_data_valid(const struct inv_icm42600_fifo_sensor_data *s)
{
- int16_t x, y, z;
+ s16 x, y, z;
x = inv_icm42600_fifo_get_sensor_data(s->x);
y = inv_icm42600_fifo_get_sensor_data(s->y);
@@ -75,7 +75,7 @@ inv_icm42600_fifo_is_data_valid(const struct inv_icm42600_fifo_sensor_data *s)
}
ssize_t inv_icm42600_fifo_decode_packet(const void *packet, const void **accel,
- const void **gyro, const int8_t **temp,
+ const void **gyro, const s8 **temp,
const void **timestamp, unsigned int *odr);
extern const struct iio_buffer_setup_ops inv_icm42600_buffer_ops;
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
index 63d46619ebfa..0bf696ba35ed 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
@@ -103,7 +103,7 @@ const struct regmap_config inv_icm42600_spi_regmap_config = {
EXPORT_SYMBOL_NS_GPL(inv_icm42600_spi_regmap_config, "IIO_ICM42600");
struct inv_icm42600_hw {
- uint8_t whoami;
+ u8 whoami;
const char *name;
const struct inv_icm42600_conf *conf;
};
@@ -188,9 +188,9 @@ inv_icm42600_get_mount_matrix(const struct iio_dev *indio_dev,
return &st->orientation;
}
-uint32_t inv_icm42600_odr_to_period(enum inv_icm42600_odr odr)
+u32 inv_icm42600_odr_to_period(enum inv_icm42600_odr odr)
{
- static uint32_t odr_periods[INV_ICM42600_ODR_NB] = {
+ static u32 odr_periods[INV_ICM42600_ODR_NB] = {
/* reserved values */
0, 0, 0,
/* 8kHz */
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c
index b4d7ce1432a4..9ba6f13628e6 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c
@@ -77,7 +77,7 @@ static const struct iio_chan_spec inv_icm42600_gyro_channels[] = {
*/
struct inv_icm42600_gyro_buffer {
struct inv_icm42600_fifo_sensor_data gyro;
- int16_t temp;
+ s16 temp;
aligned_s64 timestamp;
};
@@ -139,7 +139,7 @@ out_unlock:
static int inv_icm42600_gyro_read_sensor(struct inv_icm42600_state *st,
struct iio_chan_spec const *chan,
- int16_t *val)
+ s16 *val)
{
struct device *dev = regmap_get_device(st->map);
struct inv_icm42600_sensor_conf conf = INV_ICM42600_SENSOR_CONF_INIT;
@@ -179,7 +179,7 @@ static int inv_icm42600_gyro_read_sensor(struct inv_icm42600_state *st,
if (ret)
goto exit;
- *val = (int16_t)be16_to_cpup(data);
+ *val = (s16)be16_to_cpup(data);
if (*val == INV_ICM42600_DATA_INVALID)
ret = -EINVAL;
exit:
@@ -399,11 +399,11 @@ static int inv_icm42600_gyro_read_offset(struct inv_icm42600_state *st,
int *val, int *val2)
{
struct device *dev = regmap_get_device(st->map);
- int64_t val64;
- int32_t bias;
+ s64 val64;
+ s32 bias;
unsigned int reg;
- int16_t offset;
- uint8_t data[2];
+ s16 offset;
+ u8 data[2];
int ret;
if (chan->type != IIO_ANGL_VEL)
@@ -457,7 +457,7 @@ static int inv_icm42600_gyro_read_offset(struct inv_icm42600_state *st,
* result in nano (1000000000)
* (offset * 64 * Pi * 1000000000) / (2048 * 180)
*/
- val64 = (int64_t)offset * 64LL * 3141592653LL;
+ val64 = (s64)offset * 64LL * 3141592653LL;
/* for rounding, add + or - divisor (2048 * 180) divided by 2 */
if (val64 >= 0)
val64 += 2048 * 180 / 2;
@@ -475,9 +475,9 @@ static int inv_icm42600_gyro_write_offset(struct inv_icm42600_state *st,
int val, int val2)
{
struct device *dev = regmap_get_device(st->map);
- int64_t val64, min, max;
+ s64 val64, min, max;
unsigned int reg, regval;
- int16_t offset;
+ s16 offset;
int ret;
if (chan->type != IIO_ANGL_VEL)
@@ -498,11 +498,11 @@ static int inv_icm42600_gyro_write_offset(struct inv_icm42600_state *st,
}
/* inv_icm42600_gyro_calibbias: min - step - max in nano */
- min = (int64_t)inv_icm42600_gyro_calibbias[0] * 1000000000LL +
- (int64_t)inv_icm42600_gyro_calibbias[1];
- max = (int64_t)inv_icm42600_gyro_calibbias[4] * 1000000000LL +
- (int64_t)inv_icm42600_gyro_calibbias[5];
- val64 = (int64_t)val * 1000000000LL + (int64_t)val2;
+ min = (s64)inv_icm42600_gyro_calibbias[0] * 1000000000LL +
+ (s64)inv_icm42600_gyro_calibbias[1];
+ max = (s64)inv_icm42600_gyro_calibbias[4] * 1000000000LL +
+ (s64)inv_icm42600_gyro_calibbias[5];
+ val64 = (s64)val * 1000000000LL + (s64)val2;
if (val64 < min || val64 > max)
return -EINVAL;
@@ -577,7 +577,7 @@ static int inv_icm42600_gyro_read_raw(struct iio_dev *indio_dev,
int *val, int *val2, long mask)
{
struct inv_icm42600_state *st = iio_device_get_drvdata(indio_dev);
- int16_t data;
+ s16 data;
int ret;
switch (chan->type) {
@@ -803,10 +803,11 @@ int inv_icm42600_gyro_parse_fifo(struct iio_dev *indio_dev)
ssize_t i, size;
unsigned int no;
const void *accel, *gyro, *timestamp;
- const int8_t *temp;
+ const s8 *temp;
unsigned int odr;
- int64_t ts_val;
- struct inv_icm42600_gyro_buffer buffer;
+ s64 ts_val;
+ /* buffer is copied to userspace, zeroing it to avoid any data leak */
+ struct inv_icm42600_gyro_buffer buffer = { };
/* parse all fifo packets */
for (i = 0, no = 0; i < st->fifo.count; i += size, ++no) {
@@ -825,8 +826,6 @@ int inv_icm42600_gyro_parse_fifo(struct iio_dev *indio_dev)
inv_sensors_timestamp_apply_odr(ts, st->fifo.period,
st->fifo.nb.total, no);
- /* buffer is copied to userspace, zeroing it to avoid any data leak */
- memset(&buffer, 0, sizeof(buffer));
memcpy(&buffer.gyro, gyro, sizeof(buffer.gyro));
/* convert 8 bits FIFO temperature in high resolution format */
buffer.temp = temp ? (*temp * 64) : 0;
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c
index 988f227f6563..271a4788604a 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_temp.c
@@ -13,7 +13,7 @@
#include "inv_icm42600.h"
#include "inv_icm42600_temp.h"
-static int inv_icm42600_temp_read(struct inv_icm42600_state *st, int16_t *temp)
+static int inv_icm42600_temp_read(struct inv_icm42600_state *st, s16 *temp)
{
struct device *dev = regmap_get_device(st->map);
__be16 *raw;
@@ -31,9 +31,13 @@ static int inv_icm42600_temp_read(struct inv_icm42600_state *st, int16_t *temp)
if (ret)
goto exit;
- *temp = (int16_t)be16_to_cpup(raw);
+ *temp = (s16)be16_to_cpup(raw);
+ /*
+ * Temperature data is invalid if both accel and gyro are off.
+ * Return -EBUSY in this case.
+ */
if (*temp == INV_ICM42600_DATA_INVALID)
- ret = -EINVAL;
+ ret = -EBUSY;
exit:
mutex_unlock(&st->lock);
@@ -48,7 +52,7 @@ int inv_icm42600_temp_read_raw(struct iio_dev *indio_dev,
int *val, int *val2, long mask)
{
struct inv_icm42600_state *st = iio_device_get_drvdata(indio_dev);
- int16_t temp;
+ s16 temp;
int ret;
if (chan->type != IIO_TEMP)
diff --git a/drivers/iio/light/as73211.c b/drivers/iio/light/as73211.c
index 68f60dc3c79d..32719f584c47 100644
--- a/drivers/iio/light/as73211.c
+++ b/drivers/iio/light/as73211.c
@@ -639,7 +639,7 @@ static irqreturn_t as73211_trigger_handler(int irq __always_unused, void *p)
struct {
__le16 chan[4];
aligned_s64 ts;
- } scan;
+ } scan = { };
int data_result, ret;
mutex_lock(&data->mutex);
diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index f37f20776c89..0f23ece44000 100644
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -3216,11 +3216,12 @@ int bmp280_common_probe(struct device *dev,
/* Bring chip out of reset if there is an assigned GPIO line */
gpiod = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(gpiod))
+ return dev_err_probe(dev, PTR_ERR(gpiod), "failed to get reset GPIO\n");
+
/* Deassert the signal */
- if (gpiod) {
- dev_info(dev, "release reset\n");
- gpiod_set_value(gpiod, 0);
- }
+ dev_info(dev, "release reset\n");
+ gpiod_set_value(gpiod, 0);
data->regmap = regmap;
diff --git a/drivers/iio/proximity/isl29501.c b/drivers/iio/proximity/isl29501.c
index d1510fe24050..f69db6f2f380 100644
--- a/drivers/iio/proximity/isl29501.c
+++ b/drivers/iio/proximity/isl29501.c
@@ -938,12 +938,18 @@ static irqreturn_t isl29501_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct isl29501_private *isl29501 = iio_priv(indio_dev);
const unsigned long *active_mask = indio_dev->active_scan_mask;
- u32 buffer[4] __aligned(8) = {}; /* 1x16-bit + naturally aligned ts */
-
- if (test_bit(ISL29501_DISTANCE_SCAN_INDEX, active_mask))
- isl29501_register_read(isl29501, REG_DISTANCE, buffer);
+ u32 value;
+ struct {
+ u16 data;
+ aligned_s64 ts;
+ } scan = { };
+
+ if (test_bit(ISL29501_DISTANCE_SCAN_INDEX, active_mask)) {
+ isl29501_register_read(isl29501, REG_DISTANCE, &value);
+ scan.data = value;
+ }
- iio_push_to_buffers_with_timestamp(indio_dev, buffer, pf->timestamp);
+ iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp);
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
diff --git a/drivers/iio/temperature/maxim_thermocouple.c b/drivers/iio/temperature/maxim_thermocouple.c
index cae8e84821d7..205939680fd4 100644
--- a/drivers/iio/temperature/maxim_thermocouple.c
+++ b/drivers/iio/temperature/maxim_thermocouple.c
@@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/err.h>
#include <linux/spi/spi.h>
+#include <linux/types.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include <linux/iio/trigger.h>
@@ -121,8 +122,15 @@ struct maxim_thermocouple_data {
struct spi_device *spi;
const struct maxim_thermocouple_chip *chip;
char tc_type;
-
- u8 buffer[16] __aligned(IIO_DMA_MINALIGN);
+ /* Buffer for reading up to 2 hardware channels. */
+ struct {
+ union {
+ __be16 raw16;
+ __be32 raw32;
+ __be16 raw[2];
+ };
+ aligned_s64 timestamp;
+ } buffer __aligned(IIO_DMA_MINALIGN);
};
static int maxim_thermocouple_read(struct maxim_thermocouple_data *data,
@@ -130,18 +138,16 @@ static int maxim_thermocouple_read(struct maxim_thermocouple_data *data,
{
unsigned int storage_bytes = data->chip->read_size;
unsigned int shift = chan->scan_type.shift + (chan->address * 8);
- __be16 buf16;
- __be32 buf32;
int ret;
switch (storage_bytes) {
case 2:
- ret = spi_read(data->spi, (void *)&buf16, storage_bytes);
- *val = be16_to_cpu(buf16);
+ ret = spi_read(data->spi, &data->buffer.raw16, storage_bytes);
+ *val = be16_to_cpu(data->buffer.raw16);
break;
case 4:
- ret = spi_read(data->spi, (void *)&buf32, storage_bytes);
- *val = be32_to_cpu(buf32);
+ ret = spi_read(data->spi, &data->buffer.raw32, storage_bytes);
+ *val = be32_to_cpu(data->buffer.raw32);
break;
default:
ret = -EINVAL;
@@ -166,9 +172,9 @@ static irqreturn_t maxim_thermocouple_trigger_handler(int irq, void *private)
struct maxim_thermocouple_data *data = iio_priv(indio_dev);
int ret;
- ret = spi_read(data->spi, data->buffer, data->chip->read_size);
+ ret = spi_read(data->spi, data->buffer.raw, data->chip->read_size);
if (!ret) {
- iio_push_to_buffers_with_ts(indio_dev, data->buffer,
+ iio_push_to_buffers_with_ts(indio_dev, &data->buffer,
sizeof(data->buffer),
iio_get_time_ns(indio_dev));
}