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-rw-r--r--drivers/iio/accel/bmc150-accel.c591
-rw-r--r--drivers/iio/accel/kxcjk-1013.c6
-rw-r--r--drivers/iio/accel/mma9551.c9
-rw-r--r--drivers/iio/accel/mma9553.c6
-rw-r--r--drivers/iio/adc/Kconfig5
-rw-r--r--drivers/iio/adc/ad7793.c2
-rw-r--r--drivers/iio/adc/vf610_adc.c5
-rw-r--r--drivers/iio/gyro/bmg160.c6
-rw-r--r--drivers/iio/gyro/itg3200_core.c29
-rw-r--r--drivers/iio/imu/inv_mpu6050/Makefile2
-rw-r--r--drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c211
-rw-r--r--drivers/iio/imu/inv_mpu6050/inv_mpu_core.c7
-rw-r--r--drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h3
-rw-r--r--drivers/iio/imu/kmx61.c70
-rw-r--r--drivers/iio/industrialio-buffer.c31
-rw-r--r--drivers/iio/light/Kconfig10
-rw-r--r--drivers/iio/light/Makefile1
-rw-r--r--drivers/iio/light/cm3232.c36
-rw-r--r--drivers/iio/light/cm3323.c286
-rw-r--r--drivers/iio/light/gp2ap020a00f.c6
-rw-r--r--drivers/iio/light/jsa1212.c2
-rw-r--r--drivers/iio/pressure/Kconfig27
-rw-r--r--drivers/iio/pressure/Makefile3
-rw-r--r--drivers/iio/pressure/ms5611.h44
-rw-r--r--drivers/iio/pressure/ms5611_core.c215
-rw-r--r--drivers/iio/pressure/ms5611_i2c.c128
-rw-r--r--drivers/iio/pressure/ms5611_spi.c127
-rw-r--r--drivers/iio/proximity/sx9500.c6
-rw-r--r--drivers/iio/temperature/mlx90614.c8
29 files changed, 1498 insertions, 384 deletions
diff --git a/drivers/iio/accel/bmc150-accel.c b/drivers/iio/accel/bmc150-accel.c
index 066d0c04072c..f1b80c4c0b35 100644
--- a/drivers/iio/accel/bmc150-accel.c
+++ b/drivers/iio/accel/bmc150-accel.c
@@ -147,10 +147,37 @@ struct bmc150_accel_chip_info {
const struct bmc150_scale_info scale_table[4];
};
+struct bmc150_accel_interrupt {
+ const struct bmc150_accel_interrupt_info *info;
+ atomic_t users;
+};
+
+struct bmc150_accel_trigger {
+ struct bmc150_accel_data *data;
+ struct iio_trigger *indio_trig;
+ int (*setup)(struct bmc150_accel_trigger *t, bool state);
+ int intr;
+ bool enabled;
+};
+
+enum bmc150_accel_interrupt_id {
+ BMC150_ACCEL_INT_DATA_READY,
+ BMC150_ACCEL_INT_ANY_MOTION,
+ BMC150_ACCEL_INT_WATERMARK,
+ BMC150_ACCEL_INTERRUPTS,
+};
+
+enum bmc150_accel_trigger_id {
+ BMC150_ACCEL_TRIGGER_DATA_READY,
+ BMC150_ACCEL_TRIGGER_ANY_MOTION,
+ BMC150_ACCEL_TRIGGERS,
+};
+
struct bmc150_accel_data {
struct i2c_client *client;
- struct iio_trigger *dready_trig;
- struct iio_trigger *motion_trig;
+ struct bmc150_accel_interrupt interrupts[BMC150_ACCEL_INTERRUPTS];
+ atomic_t active_intr;
+ struct bmc150_accel_trigger triggers[BMC150_ACCEL_TRIGGERS];
struct mutex mutex;
s16 buffer[8];
u8 bw_bits;
@@ -158,8 +185,6 @@ struct bmc150_accel_data {
u32 slope_thres;
u32 range;
int ev_enable_state;
- bool dready_trigger_on;
- bool motion_trigger_on;
int64_t timestamp;
const struct bmc150_accel_chip_info *chip_info;
};
@@ -269,6 +294,46 @@ static int bmc150_accel_set_bw(struct bmc150_accel_data *data, int val,
return -EINVAL;
}
+static int bmc150_accel_update_slope(struct bmc150_accel_data *data)
+{
+ int ret, val;
+
+ ret = i2c_smbus_write_byte_data(data->client, BMC150_ACCEL_REG_INT_6,
+ data->slope_thres);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error writing reg_int_6\n");
+ return ret;
+ }
+
+ ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_INT_5);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error reading reg_int_5\n");
+ return ret;
+ }
+
+ val = (ret & ~BMC150_ACCEL_SLOPE_DUR_MASK) | data->slope_dur;
+ ret = i2c_smbus_write_byte_data(data->client, BMC150_ACCEL_REG_INT_5,
+ val);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error write reg_int_5\n");
+ return ret;
+ }
+
+ dev_dbg(&data->client->dev, "%s: %x %x\n", __func__, data->slope_thres,
+ data->slope_dur);
+
+ return ret;
+}
+
+static int bmc150_accel_any_motion_setup(struct bmc150_accel_trigger *t,
+ bool state)
+{
+ if (state)
+ return bmc150_accel_update_slope(t->data);
+
+ return 0;
+}
+
static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
{
int ret;
@@ -307,32 +372,12 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
data->range = BMC150_ACCEL_DEF_RANGE_4G;
- /* Set default slope duration */
- ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_INT_5);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error reading reg_int_5\n");
- return ret;
- }
- data->slope_dur |= BMC150_ACCEL_DEF_SLOPE_DURATION;
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_5,
- data->slope_dur);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_5\n");
- return ret;
- }
- dev_dbg(&data->client->dev, "slope_dur %x\n", data->slope_dur);
-
- /* Set default slope thresholds */
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_6,
- BMC150_ACCEL_DEF_SLOPE_THRESHOLD);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_6\n");
- return ret;
- }
+ /* Set default slope duration and thresholds */
data->slope_thres = BMC150_ACCEL_DEF_SLOPE_THRESHOLD;
- dev_dbg(&data->client->dev, "slope_thres %x\n", data->slope_thres);
+ data->slope_dur = BMC150_ACCEL_DEF_SLOPE_DURATION;
+ ret = bmc150_accel_update_slope(data);
+ if (ret < 0)
+ return ret;
/* Set default as latched interrupts */
ret = i2c_smbus_write_byte_data(data->client,
@@ -348,155 +393,6 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
return 0;
}
-static int bmc150_accel_setup_any_motion_interrupt(
- struct bmc150_accel_data *data,
- bool status)
-{
- int ret;
-
- /* Enable/Disable INT1 mapping */
- ret = i2c_smbus_read_byte_data(data->client,
- BMC150_ACCEL_REG_INT_MAP_0);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error reading reg_int_map_0\n");
- return ret;
- }
- if (status)
- ret |= BMC150_ACCEL_INT_MAP_0_BIT_SLOPE;
- else
- ret &= ~BMC150_ACCEL_INT_MAP_0_BIT_SLOPE;
-
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_MAP_0,
- ret);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_map_0\n");
- return ret;
- }
-
- if (status) {
- /* Set slope duration (no of samples) */
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_5,
- data->slope_dur);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error write reg_int_5\n");
- return ret;
- }
-
- /* Set slope thresholds */
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_6,
- data->slope_thres);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error write reg_int_6\n");
- return ret;
- }
-
- /*
- * New data interrupt is always non-latched,
- * which will have higher priority, so no need
- * to set latched mode, we will be flooded anyway with INTR
- */
- if (!data->dready_trigger_on) {
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_RST_LATCH,
- BMC150_ACCEL_INT_MODE_LATCH_INT |
- BMC150_ACCEL_INT_MODE_LATCH_RESET);
- if (ret < 0) {
- dev_err(&data->client->dev,
- "Error writing reg_int_rst_latch\n");
- return ret;
- }
- }
-
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_EN_0,
- BMC150_ACCEL_INT_EN_BIT_SLP_X |
- BMC150_ACCEL_INT_EN_BIT_SLP_Y |
- BMC150_ACCEL_INT_EN_BIT_SLP_Z);
- } else
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_EN_0,
- 0);
-
- if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_en_0\n");
- return ret;
- }
-
- return 0;
-}
-
-static int bmc150_accel_setup_new_data_interrupt(struct bmc150_accel_data *data,
- bool status)
-{
- int ret;
-
- /* Enable/Disable INT1 mapping */
- ret = i2c_smbus_read_byte_data(data->client,
- BMC150_ACCEL_REG_INT_MAP_1);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error reading reg_int_map_1\n");
- return ret;
- }
- if (status)
- ret |= BMC150_ACCEL_INT_MAP_1_BIT_DATA;
- else
- ret &= ~BMC150_ACCEL_INT_MAP_1_BIT_DATA;
-
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_MAP_1,
- ret);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_map_1\n");
- return ret;
- }
-
- if (status) {
- /*
- * Set non latched mode interrupt and clear any latched
- * interrupt
- */
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_RST_LATCH,
- BMC150_ACCEL_INT_MODE_NON_LATCH_INT |
- BMC150_ACCEL_INT_MODE_LATCH_RESET);
- if (ret < 0) {
- dev_err(&data->client->dev,
- "Error writing reg_int_rst_latch\n");
- return ret;
- }
-
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_EN_1,
- BMC150_ACCEL_INT_EN_BIT_DATA_EN);
-
- } else {
- /* Restore default interrupt mode */
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_RST_LATCH,
- BMC150_ACCEL_INT_MODE_LATCH_INT |
- BMC150_ACCEL_INT_MODE_LATCH_RESET);
- if (ret < 0) {
- dev_err(&data->client->dev,
- "Error writing reg_int_rst_latch\n");
- return ret;
- }
-
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_EN_1,
- 0);
- }
-
- if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_en_1\n");
- return ret;
- }
-
- return 0;
-}
-
static int bmc150_accel_get_bw(struct bmc150_accel_data *data, int *val,
int *val2)
{
@@ -554,6 +450,114 @@ static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on)
}
#endif
+static const struct bmc150_accel_interrupt_info {
+ u8 map_reg;
+ u8 map_bitmask;
+ u8 en_reg;
+ u8 en_bitmask;
+} bmc150_accel_interrupts[BMC150_ACCEL_INTERRUPTS] = {
+ { /* data ready interrupt */
+ .map_reg = BMC150_ACCEL_REG_INT_MAP_1,
+ .map_bitmask = BMC150_ACCEL_INT_MAP_1_BIT_DATA,
+ .en_reg = BMC150_ACCEL_REG_INT_EN_1,
+ .en_bitmask = BMC150_ACCEL_INT_EN_BIT_DATA_EN,
+ },
+ { /* motion interrupt */
+ .map_reg = BMC150_ACCEL_REG_INT_MAP_0,
+ .map_bitmask = BMC150_ACCEL_INT_MAP_0_BIT_SLOPE,
+ .en_reg = BMC150_ACCEL_REG_INT_EN_0,
+ .en_bitmask = BMC150_ACCEL_INT_EN_BIT_SLP_X |
+ BMC150_ACCEL_INT_EN_BIT_SLP_Y |
+ BMC150_ACCEL_INT_EN_BIT_SLP_Z
+ },
+};
+
+static void bmc150_accel_interrupts_setup(struct iio_dev *indio_dev,
+ struct bmc150_accel_data *data)
+{
+ int i;
+
+ for (i = 0; i < BMC150_ACCEL_INTERRUPTS; i++)
+ data->interrupts[i].info = &bmc150_accel_interrupts[i];
+}
+
+static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i,
+ bool state)
+{
+ struct bmc150_accel_interrupt *intr = &data->interrupts[i];
+ const struct bmc150_accel_interrupt_info *info = intr->info;
+ int ret;
+
+ if (state) {
+ if (atomic_inc_return(&intr->users) > 1)
+ return 0;
+ } else {
+ if (atomic_dec_return(&intr->users) > 0)
+ return 0;
+ }
+
+ /*
+ * We will expect the enable and disable to do operation in
+ * in reverse order. This will happen here anyway as our
+ * resume operation uses sync mode runtime pm calls, the
+ * suspend operation will be delayed by autosuspend delay
+ * So the disable operation will still happen in reverse of
+ * enable operation. When runtime pm is disabled the mode
+ * is always on so sequence doesn't matter
+ */
+ ret = bmc150_accel_set_power_state(data, state);
+ if (ret < 0)
+ return ret;
+
+ /* map the interrupt to the appropriate pins */
+ ret = i2c_smbus_read_byte_data(data->client, info->map_reg);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error reading reg_int_map\n");
+ goto out_fix_power_state;
+ }
+ if (state)
+ ret |= info->map_bitmask;
+ else
+ ret &= ~info->map_bitmask;
+
+ ret = i2c_smbus_write_byte_data(data->client, info->map_reg,
+ ret);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error writing reg_int_map\n");
+ goto out_fix_power_state;
+ }
+
+ /* enable/disable the interrupt */
+ ret = i2c_smbus_read_byte_data(data->client, info->en_reg);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error reading reg_int_en\n");
+ goto out_fix_power_state;
+ }
+
+ if (state)
+ ret |= info->en_bitmask;
+ else
+ ret &= ~info->en_bitmask;
+
+ ret = i2c_smbus_write_byte_data(data->client, info->en_reg, ret);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error writing reg_int_en\n");
+ goto out_fix_power_state;
+ }
+
+ if (state)
+ atomic_inc(&data->active_intr);
+ else
+ atomic_dec(&data->active_intr);
+
+ return 0;
+
+out_fix_power_state:
+ bmc150_accel_set_power_state(data, false);
+ return ret;
+}
+
+
static int bmc150_accel_set_scale(struct bmc150_accel_data *data, int val)
{
int ret, i;
@@ -732,7 +736,7 @@ static int bmc150_accel_read_event(struct iio_dev *indio_dev,
*val = data->slope_thres;
break;
case IIO_EV_INFO_PERIOD:
- *val = data->slope_dur & BMC150_ACCEL_SLOPE_DUR_MASK;
+ *val = data->slope_dur;
break;
default:
return -EINVAL;
@@ -755,11 +759,10 @@ static int bmc150_accel_write_event(struct iio_dev *indio_dev,
switch (info) {
case IIO_EV_INFO_VALUE:
- data->slope_thres = val;
+ data->slope_thres = val & 0xFF;
break;
case IIO_EV_INFO_PERIOD:
- data->slope_dur &= ~BMC150_ACCEL_SLOPE_DUR_MASK;
- data->slope_dur |= val & BMC150_ACCEL_SLOPE_DUR_MASK;
+ data->slope_dur = val & BMC150_ACCEL_SLOPE_DUR_MASK;
break;
default:
return -EINVAL;
@@ -788,36 +791,14 @@ static int bmc150_accel_write_event_config(struct iio_dev *indio_dev,
struct bmc150_accel_data *data = iio_priv(indio_dev);
int ret;
- if (state && data->ev_enable_state)
+ if (state == data->ev_enable_state)
return 0;
mutex_lock(&data->mutex);
- if (!state && data->motion_trigger_on) {
- data->ev_enable_state = 0;
- mutex_unlock(&data->mutex);
- return 0;
- }
-
- /*
- * We will expect the enable and disable to do operation in
- * in reverse order. This will happen here anyway as our
- * resume operation uses sync mode runtime pm calls, the
- * suspend operation will be delayed by autosuspend delay
- * So the disable operation will still happen in reverse of
- * enable operation. When runtime pm is disabled the mode
- * is always on so sequence doesn't matter
- */
-
- ret = bmc150_accel_set_power_state(data, state);
- if (ret < 0) {
- mutex_unlock(&data->mutex);
- return ret;
- }
-
- ret = bmc150_accel_setup_any_motion_interrupt(data, state);
+ ret = bmc150_accel_set_interrupt(data, BMC150_ACCEL_INT_ANY_MOTION,
+ state);
if (ret < 0) {
- bmc150_accel_set_power_state(data, false);
mutex_unlock(&data->mutex);
return ret;
}
@@ -832,11 +813,14 @@ static int bmc150_accel_validate_trigger(struct iio_dev *indio_dev,
struct iio_trigger *trig)
{
struct bmc150_accel_data *data = iio_priv(indio_dev);
+ int i;
- if (data->dready_trig != trig && data->motion_trig != trig)
- return -EINVAL;
+ for (i = 0; i < BMC150_ACCEL_TRIGGERS; i++) {
+ if (data->triggers[i].indio_trig == trig)
+ return 0;
+ }
- return 0;
+ return -EINVAL;
}
static IIO_CONST_ATTR_SAMP_FREQ_AVAIL(
@@ -1008,12 +992,12 @@ err_read:
static int bmc150_accel_trig_try_reen(struct iio_trigger *trig)
{
- struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
- struct bmc150_accel_data *data = iio_priv(indio_dev);
+ struct bmc150_accel_trigger *t = iio_trigger_get_drvdata(trig);
+ struct bmc150_accel_data *data = t->data;
int ret;
/* new data interrupts don't need ack */
- if (data->dready_trigger_on)
+ if (t == &t->data->triggers[BMC150_ACCEL_TRIGGER_DATA_READY])
return 0;
mutex_lock(&data->mutex);
@@ -1032,43 +1016,35 @@ static int bmc150_accel_trig_try_reen(struct iio_trigger *trig)
return 0;
}
-static int bmc150_accel_data_rdy_trigger_set_state(struct iio_trigger *trig,
+static int bmc150_accel_trigger_set_state(struct iio_trigger *trig,
bool state)
{
- struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
- struct bmc150_accel_data *data = iio_priv(indio_dev);
+ struct bmc150_accel_trigger *t = iio_trigger_get_drvdata(trig);
+ struct bmc150_accel_data *data = t->data;
int ret;
mutex_lock(&data->mutex);
- if (!state && data->ev_enable_state && data->motion_trigger_on) {
- data->motion_trigger_on = false;
+ if (t->enabled == state) {
mutex_unlock(&data->mutex);
return 0;
}
- /*
- * Refer to comment in bmc150_accel_write_event_config for
- * enable/disable operation order
- */
- ret = bmc150_accel_set_power_state(data, state);
- if (ret < 0) {
- mutex_unlock(&data->mutex);
- return ret;
+ if (t->setup) {
+ ret = t->setup(t, state);
+ if (ret < 0) {
+ mutex_unlock(&data->mutex);
+ return ret;
+ }
}
- if (data->motion_trig == trig)
- ret = bmc150_accel_setup_any_motion_interrupt(data, state);
- else
- ret = bmc150_accel_setup_new_data_interrupt(data, state);
+
+ ret = bmc150_accel_set_interrupt(data, t->intr, state);
if (ret < 0) {
- bmc150_accel_set_power_state(data, false);
mutex_unlock(&data->mutex);
return ret;
}
- if (data->motion_trig == trig)
- data->motion_trigger_on = state;
- else
- data->dready_trigger_on = state;
+
+ t->enabled = state;
mutex_unlock(&data->mutex);
@@ -1076,7 +1052,7 @@ static int bmc150_accel_data_rdy_trigger_set_state(struct iio_trigger *trig,
}
static const struct iio_trigger_ops bmc150_accel_trigger_ops = {
- .set_trigger_state = bmc150_accel_data_rdy_trigger_set_state,
+ .set_trigger_state = bmc150_accel_trigger_set_state,
.try_reenable = bmc150_accel_trig_try_reen,
.owner = THIS_MODULE,
};
@@ -1122,7 +1098,7 @@ static irqreturn_t bmc150_accel_event_handler(int irq, void *private)
dir),
data->timestamp);
ack_intr_status:
- if (!data->dready_trigger_on)
+ if (!data->triggers[BMC150_ACCEL_TRIGGER_DATA_READY].enabled)
ret = i2c_smbus_write_byte_data(data->client,
BMC150_ACCEL_REG_INT_RST_LATCH,
BMC150_ACCEL_INT_MODE_LATCH_INT |
@@ -1135,13 +1111,16 @@ static irqreturn_t bmc150_accel_data_rdy_trig_poll(int irq, void *private)
{
struct iio_dev *indio_dev = private;
struct bmc150_accel_data *data = iio_priv(indio_dev);
+ int i;
data->timestamp = iio_get_time_ns();
- if (data->dready_trigger_on)
- iio_trigger_poll(data->dready_trig);
- else if (data->motion_trigger_on)
- iio_trigger_poll(data->motion_trig);
+ for (i = 0; i < BMC150_ACCEL_TRIGGERS; i++) {
+ if (data->triggers[i].enabled) {
+ iio_trigger_poll(data->triggers[i].indio_trig);
+ break;
+ }
+ }
if (data->ev_enable_state)
return IRQ_WAKE_THREAD;
@@ -1176,16 +1155,12 @@ static int bmc150_accel_gpio_probe(struct i2c_client *client,
dev = &client->dev;
/* data ready gpio interrupt pin */
- gpio = devm_gpiod_get_index(dev, BMC150_ACCEL_GPIO_NAME, 0);
+ gpio = devm_gpiod_get_index(dev, BMC150_ACCEL_GPIO_NAME, 0, GPIOD_IN);
if (IS_ERR(gpio)) {
dev_err(dev, "Failed: gpio get index\n");
return PTR_ERR(gpio);
}
- ret = gpiod_direction_input(gpio);
- if (ret)
- return ret;
-
ret = gpiod_to_irq(gpio);
dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
@@ -1193,6 +1168,70 @@ static int bmc150_accel_gpio_probe(struct i2c_client *client,
return ret;
}
+static const struct {
+ int intr;
+ const char *name;
+ int (*setup)(struct bmc150_accel_trigger *t, bool state);
+} bmc150_accel_triggers[BMC150_ACCEL_TRIGGERS] = {
+ {
+ .intr = 0,
+ .name = "%s-dev%d",
+ },
+ {
+ .intr = 1,
+ .name = "%s-any-motion-dev%d",
+ .setup = bmc150_accel_any_motion_setup,
+ },
+};
+
+static void bmc150_accel_unregister_triggers(struct bmc150_accel_data *data,
+ int from)
+{
+ int i;
+
+ for (i = from; i >= 0; i++) {
+ if (data->triggers[i].indio_trig) {
+ iio_trigger_unregister(data->triggers[i].indio_trig);
+ data->triggers[i].indio_trig = NULL;
+ }
+ }
+}
+
+static int bmc150_accel_triggers_setup(struct iio_dev *indio_dev,
+ struct bmc150_accel_data *data)
+{
+ int i, ret;
+
+ for (i = 0; i < BMC150_ACCEL_TRIGGERS; i++) {
+ struct bmc150_accel_trigger *t = &data->triggers[i];
+
+ t->indio_trig = devm_iio_trigger_alloc(&data->client->dev,
+ bmc150_accel_triggers[i].name,
+ indio_dev->name,
+ indio_dev->id);
+ if (!t->indio_trig) {
+ ret = -ENOMEM;
+ break;
+ }
+
+ t->indio_trig->dev.parent = &data->client->dev;
+ t->indio_trig->ops = &bmc150_accel_trigger_ops;
+ t->intr = bmc150_accel_triggers[i].intr;
+ t->data = data;
+ t->setup = bmc150_accel_triggers[i].setup;
+ iio_trigger_set_drvdata(t->indio_trig, t);
+
+ ret = iio_trigger_register(t->indio_trig);
+ if (ret)
+ break;
+ }
+
+ if (ret)
+ bmc150_accel_unregister_triggers(data, i - 1);
+
+ return ret;
+}
+
static int bmc150_accel_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -1247,36 +1286,26 @@ static int bmc150_accel_probe(struct i2c_client *client,
if (ret)
return ret;
- data->dready_trig = devm_iio_trigger_alloc(&client->dev,
- "%s-dev%d",
- indio_dev->name,
- indio_dev->id);
- if (!data->dready_trig)
- return -ENOMEM;
-
- data->motion_trig = devm_iio_trigger_alloc(&client->dev,
- "%s-any-motion-dev%d",
- indio_dev->name,
- indio_dev->id);
- if (!data->motion_trig)
- return -ENOMEM;
-
- data->dready_trig->dev.parent = &client->dev;
- data->dready_trig->ops = &bmc150_accel_trigger_ops;
- iio_trigger_set_drvdata(data->dready_trig, indio_dev);
- ret = iio_trigger_register(data->dready_trig);
- if (ret)
+ /*
+ * Set latched mode interrupt. While certain interrupts are
+ * non-latched regardless of this settings (e.g. new data) we
+ * want to use latch mode when we can to prevent interrupt
+ * flooding.
+ */
+ ret = i2c_smbus_write_byte_data(data->client,
+ BMC150_ACCEL_REG_INT_RST_LATCH,
+ BMC150_ACCEL_INT_MODE_LATCH_RESET);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error writing reg_int_rst_latch\n");
return ret;
-
- data->motion_trig->dev.parent = &client->dev;
- data->motion_trig->ops = &bmc150_accel_trigger_ops;
- iio_trigger_set_drvdata(data->motion_trig, indio_dev);
- ret = iio_trigger_register(data->motion_trig);
- if (ret) {
- data->motion_trig = NULL;
- goto err_trigger_unregister;
}
+ bmc150_accel_interrupts_setup(indio_dev, data);
+
+ ret = bmc150_accel_triggers_setup(indio_dev, data);
+ if (ret)
+ return ret;
+
ret = iio_triggered_buffer_setup(indio_dev,
&iio_pollfunc_store_time,
bmc150_accel_trigger_handler,
@@ -1308,13 +1337,10 @@ static int bmc150_accel_probe(struct i2c_client *client,
err_iio_unregister:
iio_device_unregister(indio_dev);
err_buffer_cleanup:
- if (data->dready_trig)
+ if (indio_dev->pollfunc)
iio_triggered_buffer_cleanup(indio_dev);
err_trigger_unregister:
- if (data->dready_trig)
- iio_trigger_unregister(data->dready_trig);
- if (data->motion_trig)
- iio_trigger_unregister(data->motion_trig);
+ bmc150_accel_unregister_triggers(data, BMC150_ACCEL_TRIGGERS - 1);
return ret;
}
@@ -1330,11 +1356,7 @@ static int bmc150_accel_remove(struct i2c_client *client)
iio_device_unregister(indio_dev);
- if (data->dready_trig) {
- iio_triggered_buffer_cleanup(indio_dev);
- iio_trigger_unregister(data->dready_trig);
- iio_trigger_unregister(data->motion_trig);
- }
+ bmc150_accel_unregister_triggers(data, BMC150_ACCEL_TRIGGERS - 1);
mutex_lock(&data->mutex);
bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_DEEP_SUSPEND, 0);
@@ -1362,8 +1384,7 @@ static int bmc150_accel_resume(struct device *dev)
struct bmc150_accel_data *data = iio_priv(indio_dev);
mutex_lock(&data->mutex);
- if (data->dready_trigger_on || data->motion_trigger_on ||
- data->ev_enable_state)
+ if (atomic_read(&data->active_intr))
bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
mutex_unlock(&data->mutex);
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 567de269cc00..a98b5d212fb3 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -1169,16 +1169,12 @@ static int kxcjk1013_gpio_probe(struct i2c_client *client,
dev = &client->dev;
/* data ready gpio interrupt pin */
- gpio = devm_gpiod_get_index(dev, "kxcjk1013_int", 0);
+ gpio = devm_gpiod_get_index(dev, "kxcjk1013_int", 0, GPIOD_IN);
if (IS_ERR(gpio)) {
dev_err(dev, "acpi gpio get index failed\n");
return PTR_ERR(gpio);
}
- ret = gpiod_direction_input(gpio);
- if (ret)
- return ret;
-
ret = gpiod_to_irq(gpio);
dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c
index 46c38351c6a3..7db7cc0bf362 100644
--- a/drivers/iio/accel/mma9551.c
+++ b/drivers/iio/accel/mma9551.c
@@ -418,17 +418,18 @@ static int mma9551_gpio_probe(struct iio_dev *indio_dev)
struct device *dev = &data->client->dev;
for (i = 0; i < MMA9551_GPIO_COUNT; i++) {
- gpio = devm_gpiod_get_index(dev, MMA9551_GPIO_NAME, i);
+ gpio = devm_gpiod_get_index(dev, MMA9551_GPIO_NAME, i,
+ GPIOD_IN);
if (IS_ERR(gpio)) {
dev_err(dev, "acpi gpio get index failed\n");
return PTR_ERR(gpio);
}
- ret = gpiod_direction_input(gpio);
- if (ret)
+ ret = gpiod_to_irq(gpio);
+ if (ret < 0)
return ret;
- data->irqs[i] = gpiod_to_irq(gpio);
+ data->irqs[i] = ret;
ret = devm_request_threaded_irq(dev, data->irqs[i],
NULL, mma9551_event_handler,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index d23ebf192f63..2df1af7d43fc 100644
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -1109,16 +1109,12 @@ static int mma9553_gpio_probe(struct i2c_client *client)
dev = &client->dev;
/* data ready gpio interrupt pin */
- gpio = devm_gpiod_get_index(dev, MMA9553_GPIO_NAME, 0);
+ gpio = devm_gpiod_get_index(dev, MMA9553_GPIO_NAME, 0, GPIOD_IN);
if (IS_ERR(gpio)) {
dev_err(dev, "acpi gpio get index failed\n");
return PTR_ERR(gpio);
}
- ret = gpiod_direction_input(gpio);
- if (ret)
- return ret;
-
ret = gpiod_to_irq(gpio);
dev_dbg(dev, "gpio resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 202daf889be2..9eaa8d1e582d 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -186,10 +186,11 @@ config MAX1363
data via the iio dev interface.
config MCP320X
- tristate "Microchip Technology MCP3204/08"
+ tristate "Microchip Technology MCP3x01/02/04/08"
depends on SPI
help
- Say yes here to build support for Microchip Technology's MCP3204 or
+ Say yes here to build support for Microchip Technology's
+ MCP3001, MCP3002, MCP3004, MCP3008, MCP3201, MCP3202, MCP3204 or
MCP3208 analog to digital converter.
This driver can also be built as a module. If so, the module will be
diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index 4dddeabdfbb0..b84922a4b32e 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -861,5 +861,5 @@ static struct spi_driver ad7793_driver = {
module_spi_driver(ad7793_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7793 and simialr ADCs");
+MODULE_DESCRIPTION("Analog Devices AD7793 and similar ADCs");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index 8ec353c01d98..5b72d170fd36 100644
--- a/drivers/iio/adc/vf610_adc.c
+++ b/drivers/iio/adc/vf610_adc.c
@@ -259,7 +259,6 @@ static void vf610_adc_cfg_post_set(struct vf610_adc *info)
static void vf610_adc_calibration(struct vf610_adc *info)
{
int adc_gc, hc_cfg;
- int timeout;
if (!info->adc_feature.calibration)
return;
@@ -271,9 +270,7 @@ static void vf610_adc_calibration(struct vf610_adc *info)
adc_gc = readl(info->regs + VF610_REG_ADC_GC);
writel(adc_gc | VF610_ADC_CAL, info->regs + VF610_REG_ADC_GC);
- timeout = wait_for_completion_timeout
- (&info->completion, VF610_ADC_TIMEOUT);
- if (timeout == 0)
+ if (!wait_for_completion_timeout(&info->completion, VF610_ADC_TIMEOUT))
dev_err(info->dev, "Timeout for adc calibration\n");
adc_gc = readl(info->regs + VF610_REG_ADC_GS);
diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
index 60451b328242..56d68e1d0987 100644
--- a/drivers/iio/gyro/bmg160.c
+++ b/drivers/iio/gyro/bmg160.c
@@ -1001,16 +1001,12 @@ static int bmg160_gpio_probe(struct i2c_client *client,
dev = &client->dev;
/* data ready gpio interrupt pin */
- gpio = devm_gpiod_get_index(dev, BMG160_GPIO_NAME, 0);
+ gpio = devm_gpiod_get_index(dev, BMG160_GPIO_NAME, 0, GPIOD_IN);
if (IS_ERR(gpio)) {
dev_err(dev, "acpi gpio get index failed\n");
return PTR_ERR(gpio);
}
- ret = gpiod_direction_input(gpio);
- if (ret)
- return ret;
-
ret = gpiod_to_irq(gpio);
dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
diff --git a/drivers/iio/gyro/itg3200_core.c b/drivers/iio/gyro/itg3200_core.c
index 6a8020d48140..f0fd94055d88 100644
--- a/drivers/iio/gyro/itg3200_core.c
+++ b/drivers/iio/gyro/itg3200_core.c
@@ -223,6 +223,10 @@ static int itg3200_initial_setup(struct iio_dev *indio_dev)
int ret;
u8 val;
+ ret = itg3200_reset(indio_dev);
+ if (ret)
+ goto err_ret;
+
ret = itg3200_read_reg_8(indio_dev, ITG3200_REG_ADDRESS, &val);
if (ret)
goto err_ret;
@@ -233,10 +237,6 @@ static int itg3200_initial_setup(struct iio_dev *indio_dev)
goto err_ret;
}
- ret = itg3200_reset(indio_dev);
- if (ret)
- goto err_ret;
-
ret = itg3200_enable_full_scale(indio_dev);
err_ret:
return ret;
@@ -351,6 +351,26 @@ static int itg3200_remove(struct i2c_client *client)
return 0;
}
+static int __maybe_unused itg3200_suspend(struct device *dev)
+{
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct itg3200 *st = iio_priv(indio_dev);
+
+ dev_dbg(&st->i2c->dev, "suspend device");
+
+ return itg3200_write_reg_8(indio_dev, ITG3200_REG_POWER_MANAGEMENT,
+ ITG3200_SLEEP);
+}
+
+static int __maybe_unused itg3200_resume(struct device *dev)
+{
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+
+ return itg3200_initial_setup(indio_dev);
+}
+
+static SIMPLE_DEV_PM_OPS(itg3200_pm_ops, itg3200_suspend, itg3200_resume);
+
static const struct i2c_device_id itg3200_id[] = {
{ "itg3200", 0 },
{ }
@@ -361,6 +381,7 @@ static struct i2c_driver itg3200_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "itg3200",
+ .pm = &itg3200_pm_ops,
},
.id_table = itg3200_id,
.probe = itg3200_probe,
diff --git a/drivers/iio/imu/inv_mpu6050/Makefile b/drivers/iio/imu/inv_mpu6050/Makefile
index 3a677c778afb..f566f6a7b3a9 100644
--- a/drivers/iio/imu/inv_mpu6050/Makefile
+++ b/drivers/iio/imu/inv_mpu6050/Makefile
@@ -3,4 +3,4 @@
#
obj-$(CONFIG_INV_MPU6050_IIO) += inv-mpu6050.o
-inv-mpu6050-objs := inv_mpu_core.o inv_mpu_ring.o inv_mpu_trigger.o
+inv-mpu6050-objs := inv_mpu_core.o inv_mpu_ring.o inv_mpu_trigger.o inv_mpu_acpi.o
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c
new file mode 100644
index 000000000000..1c982a56acd5
--- /dev/null
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c
@@ -0,0 +1,211 @@
+/*
+ * inv_mpu_acpi: ACPI processing for creating client devices
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 for
+ * more details.
+ */
+
+#ifdef CONFIG_ACPI
+
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/dmi.h>
+#include <linux/acpi.h>
+#include "inv_mpu_iio.h"
+
+enum inv_mpu_product_name {
+ INV_MPU_NOT_MATCHED,
+ INV_MPU_ASUS_T100TA,
+};
+
+static enum inv_mpu_product_name matched_product_name;
+
+static int __init asus_t100_matched(const struct dmi_system_id *d)
+{
+ matched_product_name = INV_MPU_ASUS_T100TA;
+
+ return 0;
+}
+
+static const struct dmi_system_id inv_mpu_dev_list[] = {
+ {
+ .callback = asus_t100_matched,
+ .ident = "Asus Transformer Book T100",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "T100TA"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
+ },
+ },
+ /* Add more matching tables here..*/
+ {}
+};
+
+static int asus_acpi_get_sensor_info(struct acpi_device *adev,
+ struct i2c_client *client,
+ struct i2c_board_info *info)
+{
+ struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+ int i;
+ acpi_status status;
+ union acpi_object *cpm;
+
+ status = acpi_evaluate_object(adev->handle, "CNF0", NULL, &buffer);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+
+ cpm = buffer.pointer;
+ for (i = 0; i < cpm->package.count; ++i) {
+ union acpi_object *elem;
+ int j;
+
+ elem = &(cpm->package.elements[i]);
+ for (j = 0; j < elem->package.count; ++j) {
+ union acpi_object *sub_elem;
+
+ sub_elem = &(elem->package.elements[j]);
+ if (sub_elem->type == ACPI_TYPE_STRING)
+ strlcpy(info->type, sub_elem->string.pointer,
+ sizeof(info->type));
+ else if (sub_elem->type == ACPI_TYPE_INTEGER) {
+ if (sub_elem->integer.value != client->addr) {
+ info->addr = sub_elem->integer.value;
+ break; /* Not a MPU6500 primary */
+ }
+ }
+ }
+ }
+
+ kfree(buffer.pointer);
+
+ return cpm->package.count;
+}
+
+static int acpi_i2c_check_resource(struct acpi_resource *ares, void *data)
+{
+ u32 *addr = data;
+
+ if (ares->type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
+ struct acpi_resource_i2c_serialbus *sb;
+
+ sb = &ares->data.i2c_serial_bus;
+ if (sb->type == ACPI_RESOURCE_SERIAL_TYPE_I2C) {
+ if (*addr)
+ *addr |= (sb->slave_address << 16);
+ else
+ *addr = sb->slave_address;
+ }
+ }
+
+ /* Tell the ACPI core that we already copied this address */
+ return 1;
+}
+
+static int inv_mpu_process_acpi_config(struct i2c_client *client,
+ unsigned short *primary_addr,
+ unsigned short *secondary_addr)
+{
+ const struct acpi_device_id *id;
+ struct acpi_device *adev;
+ u32 i2c_addr = 0;
+ LIST_HEAD(resources);
+ int ret;
+
+ id = acpi_match_device(client->dev.driver->acpi_match_table,
+ &client->dev);
+ if (!id)
+ return -ENODEV;
+
+ adev = ACPI_COMPANION(&client->dev);
+ if (!adev)
+ return -ENODEV;
+
+ ret = acpi_dev_get_resources(adev, &resources,
+ acpi_i2c_check_resource, &i2c_addr);
+ if (ret < 0)
+ return ret;
+
+ acpi_dev_free_resource_list(&resources);
+ *primary_addr = i2c_addr & 0x0000ffff;
+ *secondary_addr = (i2c_addr & 0xffff0000) >> 16;
+
+ return 0;
+}
+
+int inv_mpu_acpi_create_mux_client(struct inv_mpu6050_state *st)
+{
+
+ st->mux_client = NULL;
+ if (ACPI_HANDLE(&st->client->dev)) {
+ struct i2c_board_info info;
+ struct acpi_device *adev;
+ int ret = -1;
+
+ adev = ACPI_COMPANION(&st->client->dev);
+ memset(&info, 0, sizeof(info));
+
+ dmi_check_system(inv_mpu_dev_list);
+ switch (matched_product_name) {
+ case INV_MPU_ASUS_T100TA:
+ ret = asus_acpi_get_sensor_info(adev, st->client,
+ &info);
+ break;
+ /* Add more matched product processing here */
+ default:
+ break;
+ }
+
+ if (ret < 0) {
+ /* No matching DMI, so create device on INV6XX type */
+ unsigned short primary, secondary;
+
+ ret = inv_mpu_process_acpi_config(st->client, &primary,
+ &secondary);
+ if (!ret && secondary) {
+ char *name;
+
+ info.addr = secondary;
+ strlcpy(info.type, dev_name(&adev->dev),
+ sizeof(info.type));
+ name = strchr(info.type, ':');
+ if (name)
+ *name = '\0';
+ strlcat(info.type, "-client",
+ sizeof(info.type));
+ } else
+ return 0; /* no secondary addr, which is OK */
+ }
+ st->mux_client = i2c_new_device(st->mux_adapter, &info);
+ if (!st->mux_client)
+ return -ENODEV;
+
+ }
+
+ return 0;
+}
+
+void inv_mpu_acpi_delete_mux_client(struct inv_mpu6050_state *st)
+{
+ if (st->mux_client)
+ i2c_unregister_device(st->mux_client);
+}
+#else
+
+#include "inv_mpu_iio.h"
+
+int inv_mpu_acpi_create_mux_client(struct inv_mpu6050_state *st)
+{
+ return 0;
+}
+
+void inv_mpu_acpi_delete_mux_client(struct inv_mpu6050_state *st)
+{
+}
+#endif
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index d8d5bed65e07..5613f3ab9f96 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -825,8 +825,14 @@ static int inv_mpu_probe(struct i2c_client *client,
goto out_unreg_device;
}
+ result = inv_mpu_acpi_create_mux_client(st);
+ if (result)
+ goto out_del_mux;
+
return 0;
+out_del_mux:
+ i2c_del_mux_adapter(st->mux_adapter);
out_unreg_device:
iio_device_unregister(indio_dev);
out_remove_trigger:
@@ -841,6 +847,7 @@ static int inv_mpu_remove(struct i2c_client *client)
struct iio_dev *indio_dev = i2c_get_clientdata(client);
struct inv_mpu6050_state *st = iio_priv(indio_dev);
+ inv_mpu_acpi_delete_mux_client(st);
i2c_del_mux_adapter(st->mux_adapter);
iio_device_unregister(indio_dev);
inv_mpu6050_remove_trigger(st);
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
index aa837de57079..db0a4a2758ab 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
@@ -121,6 +121,7 @@ struct inv_mpu6050_state {
spinlock_t time_stamp_lock;
struct i2c_client *client;
struct i2c_adapter *mux_adapter;
+ struct i2c_client *mux_client;
unsigned int powerup_count;
struct inv_mpu6050_platform_data plat_data;
DECLARE_KFIFO(timestamps, long long, TIMESTAMP_FIFO_SIZE);
@@ -251,3 +252,5 @@ int inv_reset_fifo(struct iio_dev *indio_dev);
int inv_mpu6050_switch_engine(struct inv_mpu6050_state *st, bool en, u32 mask);
int inv_mpu6050_write_reg(struct inv_mpu6050_state *st, int reg, u8 val);
int inv_mpu6050_set_power_itg(struct inv_mpu6050_state *st, bool power_on);
+int inv_mpu_acpi_create_mux_client(struct inv_mpu6050_state *st);
+void inv_mpu_acpi_delete_mux_client(struct inv_mpu6050_state *st);
diff --git a/drivers/iio/imu/kmx61.c b/drivers/iio/imu/kmx61.c
index 5cc3692acf37..75ab70100015 100644
--- a/drivers/iio/imu/kmx61.c
+++ b/drivers/iio/imu/kmx61.c
@@ -169,19 +169,18 @@ static const u16 kmx61_uscale_table[] = {9582, 19163, 38326};
static const struct {
int val;
int val2;
- u8 odr_bits;
-} kmx61_samp_freq_table[] = { {12, 500000, 0x00},
- {25, 0, 0x01},
- {50, 0, 0x02},
- {100, 0, 0x03},
- {200, 0, 0x04},
- {400, 0, 0x05},
- {800, 0, 0x06},
- {1600, 0, 0x07},
- {0, 781000, 0x08},
- {1, 563000, 0x09},
- {3, 125000, 0x0A},
- {6, 250000, 0x0B} };
+} kmx61_samp_freq_table[] = { {12, 500000},
+ {25, 0},
+ {50, 0},
+ {100, 0},
+ {200, 0},
+ {400, 0},
+ {800, 0},
+ {1600, 0},
+ {0, 781000},
+ {1, 563000},
+ {3, 125000},
+ {6, 250000} };
static const struct {
int val;
@@ -302,24 +301,10 @@ static int kmx61_convert_freq_to_bit(int val, int val2)
for (i = 0; i < ARRAY_SIZE(kmx61_samp_freq_table); i++)
if (val == kmx61_samp_freq_table[i].val &&
val2 == kmx61_samp_freq_table[i].val2)
- return kmx61_samp_freq_table[i].odr_bits;
+ return i;
return -EINVAL;
}
-static int kmx61_convert_bit_to_freq(u8 odr_bits, int *val, int *val2)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(kmx61_samp_freq_table); i++)
- if (odr_bits == kmx61_samp_freq_table[i].odr_bits) {
- *val = kmx61_samp_freq_table[i].val;
- *val2 = kmx61_samp_freq_table[i].val2;
- return 0;
- }
- return -EINVAL;
-}
-
-
static int kmx61_convert_wake_up_odr_to_bit(int val, int val2)
{
int i;
@@ -478,7 +463,7 @@ static int kmx61_set_odr(struct kmx61_data *data, int val, int val2, u8 device)
static int kmx61_get_odr(struct kmx61_data *data, int *val, int *val2,
u8 device)
-{ int i;
+{
u8 lodr_bits;
if (device & KMX61_ACC)
@@ -490,13 +475,13 @@ static int kmx61_get_odr(struct kmx61_data *data, int *val, int *val2,
else
return -EINVAL;
- for (i = 0; i < ARRAY_SIZE(kmx61_samp_freq_table); i++)
- if (lodr_bits == kmx61_samp_freq_table[i].odr_bits) {
- *val = kmx61_samp_freq_table[i].val;
- *val2 = kmx61_samp_freq_table[i].val2;
- return 0;
- }
- return -EINVAL;
+ if (lodr_bits >= ARRAY_SIZE(kmx61_samp_freq_table))
+ return -EINVAL;
+
+ *val = kmx61_samp_freq_table[lodr_bits].val;
+ *val2 = kmx61_samp_freq_table[lodr_bits].val2;
+
+ return 0;
}
static int kmx61_set_range(struct kmx61_data *data, u8 range)
@@ -580,8 +565,11 @@ static int kmx61_chip_init(struct kmx61_data *data)
}
data->odr_bits = ret;
- /* set output data rate for wake up (motion detection) function */
- ret = kmx61_convert_bit_to_freq(data->odr_bits, &val, &val2);
+ /*
+ * set output data rate for wake up (motion detection) function
+ * to match data rate for accelerometer sampling
+ */
+ ret = kmx61_get_odr(data, &val, &val2, KMX61_ACC);
if (ret < 0)
return ret;
@@ -1267,16 +1255,12 @@ static int kmx61_gpio_probe(struct i2c_client *client, struct kmx61_data *data)
dev = &client->dev;
/* data ready gpio interrupt pin */
- gpio = devm_gpiod_get_index(dev, KMX61_GPIO_NAME, 0);
+ gpio = devm_gpiod_get_index(dev, KMX61_GPIO_NAME, 0, GPIOD_IN);
if (IS_ERR(gpio)) {
dev_err(dev, "acpi gpio get index failed\n");
return PTR_ERR(gpio);
}
- ret = gpiod_direction_input(gpio);
- if (ret)
- return ret;
-
ret = gpiod_to_irq(gpio);
dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 71333140d42c..c2d5440aa226 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -761,6 +761,11 @@ static struct device_attribute dev_attr_length_ro = __ATTR(length,
static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR,
iio_buffer_show_enable, iio_buffer_store_enable);
+static struct attribute *iio_buffer_attrs[] = {
+ &dev_attr_length.attr,
+ &dev_attr_enable.attr,
+};
+
int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev)
{
struct iio_dev_attr *p;
@@ -778,21 +783,23 @@ int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev)
attrcount++;
}
- buffer->buffer_group.name = "buffer";
- buffer->buffer_group.attrs = kcalloc(attrcount + 3,
- sizeof(*buffer->buffer_group.attrs), GFP_KERNEL);
- if (!buffer->buffer_group.attrs)
+ attr = kcalloc(attrcount + ARRAY_SIZE(iio_buffer_attrs) + 1,
+ sizeof(struct attribute *), GFP_KERNEL);
+ if (!attr)
return -ENOMEM;
- if (buffer->access->set_length)
- buffer->buffer_group.attrs[0] = &dev_attr_length.attr;
- else
- buffer->buffer_group.attrs[0] = &dev_attr_length_ro.attr;
- buffer->buffer_group.attrs[1] = &dev_attr_enable.attr;
+ memcpy(attr, iio_buffer_attrs, sizeof(iio_buffer_attrs));
+ if (!buffer->access->set_length)
+ attr[0] = &dev_attr_length_ro.attr;
+
if (buffer->attrs)
- memcpy(&buffer->buffer_group.attrs[2], buffer->attrs,
- sizeof(*&buffer->buffer_group.attrs) * attrcount);
- buffer->buffer_group.attrs[attrcount+2] = NULL;
+ memcpy(&attr[ARRAY_SIZE(iio_buffer_attrs)], buffer->attrs,
+ sizeof(struct attribute *) * attrcount);
+
+ attr[attrcount + ARRAY_SIZE(iio_buffer_attrs)] = NULL;
+
+ buffer->buffer_group.name = "buffer";
+ buffer->buffer_group.attrs = attr;
indio_dev->groups[indio_dev->groupcounter++] = &buffer->buffer_group;
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index a224afd6380c..01a1a16ab7be 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -59,6 +59,16 @@ config CM3232
To compile this driver as a module, choose M here:
the module will be called cm3232.
+config CM3323
+ depends on I2C
+ tristate "Capella CM3323 color light sensor"
+ help
+ Say Y here if you want to build a driver for Capela CM3323
+ color sensor.
+
+ To compile this driver as a module, choose M here: the module will
+ be called cm3323.
+
config CM36651
depends on I2C
tristate "CM36651 driver"
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index b12a5160d9e0..ad7c30fe443b 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_AL3320A) += al3320a.o
obj-$(CONFIG_APDS9300) += apds9300.o
obj-$(CONFIG_CM32181) += cm32181.o
obj-$(CONFIG_CM3232) += cm3232.o
+obj-$(CONFIG_CM3323) += cm3323.o
obj-$(CONFIG_CM36651) += cm36651.o
obj-$(CONFIG_GP2AP020A00F) += gp2ap020a00f.o
obj-$(CONFIG_HID_SENSOR_ALS) += hid-sensor-als.o
diff --git a/drivers/iio/light/cm3232.c b/drivers/iio/light/cm3232.c
index 90e3519a91de..39c8d99cc48e 100644
--- a/drivers/iio/light/cm3232.c
+++ b/drivers/iio/light/cm3232.c
@@ -378,6 +378,39 @@ static const struct i2c_device_id cm3232_id[] = {
{}
};
+#ifdef CONFIG_PM_SLEEP
+static int cm3232_suspend(struct device *dev)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ struct cm3232_chip *chip = iio_priv(indio_dev);
+ struct i2c_client *client = chip->client;
+ int ret;
+
+ chip->regs_cmd |= CM3232_CMD_ALS_DISABLE;
+ ret = i2c_smbus_write_byte_data(client, CM3232_REG_ADDR_CMD,
+ chip->regs_cmd);
+
+ return ret;
+}
+
+static int cm3232_resume(struct device *dev)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ struct cm3232_chip *chip = iio_priv(indio_dev);
+ struct i2c_client *client = chip->client;
+ int ret;
+
+ chip->regs_cmd &= ~CM3232_CMD_ALS_DISABLE;
+ ret = i2c_smbus_write_byte_data(client, CM3232_REG_ADDR_CMD,
+ chip->regs_cmd | CM3232_CMD_ALS_RESET);
+
+ return ret;
+}
+
+static const struct dev_pm_ops cm3232_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(cm3232_suspend, cm3232_resume)};
+#endif
+
MODULE_DEVICE_TABLE(i2c, cm3232_id);
static const struct of_device_id cm3232_of_match[] = {
@@ -390,6 +423,9 @@ static struct i2c_driver cm3232_driver = {
.name = "cm3232",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(cm3232_of_match),
+#ifdef CONFIG_PM_SLEEP
+ .pm = &cm3232_pm_ops,
+#endif
},
.id_table = cm3232_id,
.probe = cm3232_probe,
diff --git a/drivers/iio/light/cm3323.c b/drivers/iio/light/cm3323.c
new file mode 100644
index 000000000000..869033e48a1f
--- /dev/null
+++ b/drivers/iio/light/cm3323.c
@@ -0,0 +1,286 @@
+/*
+ * CM3323 - Capella Color Light Sensor
+ *
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * IIO driver for CM3323 (7-bit I2C slave address 0x10)
+ *
+ * TODO: calibscale to correct the lens factor
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+#define CM3323_DRV_NAME "cm3323"
+
+#define CM3323_CMD_CONF 0x00
+#define CM3323_CMD_RED_DATA 0x08
+#define CM3323_CMD_GREEN_DATA 0x09
+#define CM3323_CMD_BLUE_DATA 0x0A
+#define CM3323_CMD_CLEAR_DATA 0x0B
+
+#define CM3323_CONF_SD_BIT BIT(0) /* sensor disable */
+#define CM3323_CONF_AF_BIT BIT(1) /* auto/manual force mode */
+#define CM3323_CONF_IT_MASK (BIT(4) | BIT(5) | BIT(6))
+#define CM3323_CONF_IT_SHIFT 4
+
+#define CM3323_INT_TIME_AVAILABLE "0.04 0.08 0.16 0.32 0.64 1.28"
+
+static const struct {
+ int val;
+ int val2;
+} cm3323_int_time[] = {
+ {0, 40000}, /* 40 ms */
+ {0, 80000}, /* 80 ms */
+ {0, 160000}, /* 160 ms */
+ {0, 320000}, /* 320 ms */
+ {0, 640000}, /* 640 ms */
+ {1, 280000}, /* 1280 ms */
+};
+
+struct cm3323_data {
+ struct i2c_client *client;
+ u16 reg_conf;
+ struct mutex mutex;
+};
+
+#define CM3323_COLOR_CHANNEL(_color, _addr) { \
+ .type = IIO_INTENSITY, \
+ .modified = 1, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+ .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_INT_TIME), \
+ .channel2 = IIO_MOD_LIGHT_##_color, \
+ .address = _addr, \
+}
+
+static const struct iio_chan_spec cm3323_channels[] = {
+ CM3323_COLOR_CHANNEL(RED, CM3323_CMD_RED_DATA),
+ CM3323_COLOR_CHANNEL(GREEN, CM3323_CMD_GREEN_DATA),
+ CM3323_COLOR_CHANNEL(BLUE, CM3323_CMD_BLUE_DATA),
+ CM3323_COLOR_CHANNEL(CLEAR, CM3323_CMD_CLEAR_DATA),
+};
+
+static IIO_CONST_ATTR_INT_TIME_AVAIL(CM3323_INT_TIME_AVAILABLE);
+
+static struct attribute *cm3323_attributes[] = {
+ &iio_const_attr_integration_time_available.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group cm3323_attribute_group = {
+ .attrs = cm3323_attributes,
+};
+
+static int cm3323_init(struct iio_dev *indio_dev)
+{
+ int ret;
+ struct cm3323_data *data = iio_priv(indio_dev);
+
+ ret = i2c_smbus_read_word_data(data->client, CM3323_CMD_CONF);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error reading reg_conf\n");
+ return ret;
+ }
+
+ /* enable sensor and set auto force mode */
+ ret &= ~(CM3323_CONF_SD_BIT | CM3323_CONF_AF_BIT);
+
+ ret = i2c_smbus_write_word_data(data->client, CM3323_CMD_CONF, ret);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error writing reg_conf\n");
+ return ret;
+ }
+
+ data->reg_conf = ret;
+
+ return 0;
+}
+
+static void cm3323_disable(struct iio_dev *indio_dev)
+{
+ int ret;
+ struct cm3323_data *data = iio_priv(indio_dev);
+
+ ret = i2c_smbus_write_word_data(data->client, CM3323_CMD_CONF,
+ CM3323_CONF_SD_BIT);
+ if (ret < 0)
+ dev_err(&data->client->dev, "Error writing reg_conf\n");
+}
+
+static int cm3323_set_it_bits(struct cm3323_data *data, int val, int val2)
+{
+ int i, ret;
+ u16 reg_conf;
+
+ for (i = 0; i < ARRAY_SIZE(cm3323_int_time); i++) {
+ if (val == cm3323_int_time[i].val &&
+ val2 == cm3323_int_time[i].val2) {
+ reg_conf = data->reg_conf;
+ reg_conf |= i << CM3323_CONF_IT_SHIFT;
+
+ ret = i2c_smbus_write_word_data(data->client,
+ CM3323_CMD_CONF,
+ reg_conf);
+ if (ret < 0)
+ return ret;
+
+ data->reg_conf = reg_conf;
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+
+static int cm3323_get_it_bits(struct cm3323_data *data)
+{
+ int bits;
+
+ bits = (data->reg_conf & CM3323_CONF_IT_MASK) >>
+ CM3323_CONF_IT_SHIFT;
+
+ if (bits >= ARRAY_SIZE(cm3323_int_time))
+ return -EINVAL;
+ return bits;
+}
+
+static int cm3323_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan, int *val,
+ int *val2, long mask)
+{
+ int i, ret;
+ struct cm3323_data *data = iio_priv(indio_dev);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ mutex_lock(&data->mutex);
+ ret = i2c_smbus_read_word_data(data->client, chan->address);
+ if (ret < 0) {
+ mutex_unlock(&data->mutex);
+ return ret;
+ }
+ *val = ret;
+ mutex_unlock(&data->mutex);
+
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_INT_TIME:
+ mutex_lock(&data->mutex);
+ i = cm3323_get_it_bits(data);
+ if (i < 0) {
+ mutex_unlock(&data->mutex);
+ return -EINVAL;
+ }
+
+ *val = cm3323_int_time[i].val;
+ *val2 = cm3323_int_time[i].val2;
+ mutex_unlock(&data->mutex);
+
+ return IIO_VAL_INT_PLUS_MICRO;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int cm3323_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan, int val,
+ int val2, long mask)
+{
+ struct cm3323_data *data = iio_priv(indio_dev);
+ int ret;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_INT_TIME:
+ mutex_lock(&data->mutex);
+ ret = cm3323_set_it_bits(data, val, val2);
+ mutex_unlock(&data->mutex);
+
+ return ret;
+ default:
+ return -EINVAL;
+ }
+}
+
+static const struct iio_info cm3323_info = {
+ .driver_module = THIS_MODULE,
+ .read_raw = cm3323_read_raw,
+ .write_raw = cm3323_write_raw,
+ .attrs = &cm3323_attribute_group,
+};
+
+static int cm3323_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct cm3323_data *data;
+ struct iio_dev *indio_dev;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ data = iio_priv(indio_dev);
+ i2c_set_clientdata(client, indio_dev);
+ data->client = client;
+
+ mutex_init(&data->mutex);
+
+ indio_dev->dev.parent = &client->dev;
+ indio_dev->info = &cm3323_info;
+ indio_dev->name = CM3323_DRV_NAME;
+ indio_dev->channels = cm3323_channels;
+ indio_dev->num_channels = ARRAY_SIZE(cm3323_channels);
+ indio_dev->modes = INDIO_DIRECT_MODE;
+
+ ret = cm3323_init(indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev, "cm3323 chip init failed\n");
+ return ret;
+ }
+ ret = iio_device_register(indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to register iio dev\n");
+ goto err_init;
+ }
+ return 0;
+err_init:
+ cm3323_disable(indio_dev);
+ return ret;
+}
+
+static int cm3323_remove(struct i2c_client *client)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+ iio_device_unregister(indio_dev);
+ cm3323_disable(indio_dev);
+
+ return 0;
+}
+
+static const struct i2c_device_id cm3323_id[] = {
+ {"cm3323", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, cm3323_id);
+
+static struct i2c_driver cm3323_driver = {
+ .driver = {
+ .name = CM3323_DRV_NAME,
+ },
+ .probe = cm3323_probe,
+ .remove = cm3323_remove,
+ .id_table = cm3323_id,
+};
+
+module_i2c_driver(cm3323_driver);
+
+MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
+MODULE_DESCRIPTION("Capella CM3323 Color Light Sensor driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
index 221ed16de1f7..32b6449833fa 100644
--- a/drivers/iio/light/gp2ap020a00f.c
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -46,6 +46,7 @@
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
+#include <asm/unaligned.h>
#include <linux/iio/buffer.h>
#include <linux/iio/events.h>
#include <linux/iio/iio.h>
@@ -966,7 +967,6 @@ static irqreturn_t gp2ap020a00f_trigger_handler(int irq, void *data)
struct iio_dev *indio_dev = pf->indio_dev;
struct gp2ap020a00f_data *priv = iio_priv(indio_dev);
size_t d_size = 0;
- __le32 light_lux;
int i, out_val, ret;
for_each_set_bit(i, indio_dev->active_scan_mask,
@@ -981,8 +981,8 @@ static irqreturn_t gp2ap020a00f_trigger_handler(int irq, void *data)
i == GP2AP020A00F_SCAN_MODE_LIGHT_IR) {
out_val = le16_to_cpup((__le16 *)&priv->buffer[d_size]);
gp2ap020a00f_output_to_lux(priv, &out_val);
- light_lux = cpu_to_le32(out_val);
- memcpy(&priv->buffer[d_size], (u8 *)&light_lux, 4);
+
+ put_unaligned_le32(out_val, &priv->buffer[d_size]);
d_size += 4;
} else {
d_size += 2;
diff --git a/drivers/iio/light/jsa1212.c b/drivers/iio/light/jsa1212.c
index 29de7e7d9562..3a3af89beaf9 100644
--- a/drivers/iio/light/jsa1212.c
+++ b/drivers/iio/light/jsa1212.c
@@ -308,7 +308,7 @@ static bool jsa1212_is_volatile_reg(struct device *dev, unsigned int reg)
}
}
-static struct regmap_config jsa1212_regmap_config = {
+static const struct regmap_config jsa1212_regmap_config = {
.name = JSA1212_REGMAP_NAME,
.reg_bits = 8,
.val_bits = 8,
diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig
index a3be53792072..fa6295041947 100644
--- a/drivers/iio/pressure/Kconfig
+++ b/drivers/iio/pressure/Kconfig
@@ -52,6 +52,33 @@ config MPL3115
To compile this driver as a module, choose M here: the module
will be called mpl3115.
+config MS5611
+ tristate "Measurement Specialities MS5611 pressure sensor driver"
+ help
+ Say Y here to build support for the Measurement Specialities
+ MS5611 pressure and temperature sensor.
+
+ To compile this driver as a module, choose M here: the module will
+ be called ms5611_core.
+
+config MS5611_I2C
+ tristate "support I2C bus connection"
+ depends on I2C && MS5611
+ help
+ Say Y here to build I2C bus support for MS5611.
+
+ To compile this driver as a module, choose M here: the module will
+ be called ms5611_i2c.
+
+config MS5611_SPI
+ tristate "support SPI bus connection"
+ depends on SPI_MASTER && MS5611
+ help
+ Say Y here to build SPI bus support for MS5611.
+
+ To compile this driver as a module, choose M here: the module will
+ be called ms5611_spi.
+
config IIO_ST_PRESS
tristate "STMicroelectronics pressure sensor Driver"
depends on (I2C || SPI_MASTER) && SYSFS
diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile
index 88011f2ae00e..a4f98f8d90ed 100644
--- a/drivers/iio/pressure/Makefile
+++ b/drivers/iio/pressure/Makefile
@@ -7,6 +7,9 @@ obj-$(CONFIG_BMP280) += bmp280.o
obj-$(CONFIG_HID_SENSOR_PRESS) += hid-sensor-press.o
obj-$(CONFIG_MPL115) += mpl115.o
obj-$(CONFIG_MPL3115) += mpl3115.o
+obj-$(CONFIG_MS5611) += ms5611_core.o
+obj-$(CONFIG_MS5611_I2C) += ms5611_i2c.o
+obj-$(CONFIG_MS5611_SPI) += ms5611_spi.o
obj-$(CONFIG_IIO_ST_PRESS) += st_pressure.o
st_pressure-y := st_pressure_core.o
st_pressure-$(CONFIG_IIO_BUFFER) += st_pressure_buffer.o
diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h
new file mode 100644
index 000000000000..099c6cdea43f
--- /dev/null
+++ b/drivers/iio/pressure/ms5611.h
@@ -0,0 +1,44 @@
+/*
+ * MS5611 pressure and temperature sensor driver
+ *
+ * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef _MS5611_H
+#define _MS5611_H
+
+#include <linux/device.h>
+#include <linux/iio/iio.h>
+#include <linux/mutex.h>
+
+#define MS5611_RESET 0x1e
+#define MS5611_READ_ADC 0x00
+#define MS5611_READ_PROM_WORD 0xA0
+#define MS5611_START_TEMP_CONV 0x58
+#define MS5611_START_PRESSURE_CONV 0x48
+
+#define MS5611_CONV_TIME_MIN 9040
+#define MS5611_CONV_TIME_MAX 10000
+
+#define MS5611_PROM_WORDS_NB 8
+
+struct ms5611_state {
+ void *client;
+ struct mutex lock;
+
+ int (*reset)(struct device *dev);
+ int (*read_prom_word)(struct device *dev, int index, u16 *word);
+ int (*read_adc_temp_and_pressure)(struct device *dev,
+ s32 *temp, s32 *pressure);
+
+ u16 prom[MS5611_PROM_WORDS_NB];
+};
+
+int ms5611_probe(struct iio_dev *indio_dev, struct device *dev);
+
+#endif /* _MS5611_H */
diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c
new file mode 100644
index 000000000000..e42c8531d9b3
--- /dev/null
+++ b/drivers/iio/pressure/ms5611_core.c
@@ -0,0 +1,215 @@
+/*
+ * MS5611 pressure and temperature sensor driver
+ *
+ * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Data sheet:
+ * http://www.meas-spec.com/downloads/MS5611-01BA03.pdf
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/iio/iio.h>
+#include <linux/delay.h>
+
+#include "ms5611.h"
+
+static bool ms5611_prom_is_valid(u16 *prom, size_t len)
+{
+ int i, j;
+ uint16_t crc = 0, crc_orig = prom[7] & 0x000F;
+
+ prom[7] &= 0xFF00;
+
+ for (i = 0; i < len * 2; i++) {
+ if (i % 2 == 1)
+ crc ^= prom[i >> 1] & 0x00FF;
+ else
+ crc ^= prom[i >> 1] >> 8;
+
+ for (j = 0; j < 8; j++) {
+ if (crc & 0x8000)
+ crc = (crc << 1) ^ 0x3000;
+ else
+ crc <<= 1;
+ }
+ }
+
+ crc = (crc >> 12) & 0x000F;
+
+ return crc_orig != 0x0000 && crc == crc_orig;
+}
+
+static int ms5611_read_prom(struct iio_dev *indio_dev)
+{
+ int ret, i;
+ struct ms5611_state *st = iio_priv(indio_dev);
+
+ for (i = 0; i < MS5611_PROM_WORDS_NB; i++) {
+ ret = st->read_prom_word(&indio_dev->dev, i, &st->prom[i]);
+ if (ret < 0) {
+ dev_err(&indio_dev->dev,
+ "failed to read prom at %d\n", i);
+ return ret;
+ }
+ }
+
+ if (!ms5611_prom_is_valid(st->prom, MS5611_PROM_WORDS_NB)) {
+ dev_err(&indio_dev->dev, "PROM integrity check failed\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev,
+ s32 *temp, s32 *pressure)
+{
+ int ret;
+ s32 t, p;
+ s64 off, sens, dt;
+ struct ms5611_state *st = iio_priv(indio_dev);
+
+ ret = st->read_adc_temp_and_pressure(&indio_dev->dev, &t, &p);
+ if (ret < 0) {
+ dev_err(&indio_dev->dev,
+ "failed to read temperature and pressure\n");
+ return ret;
+ }
+
+ dt = t - (st->prom[5] << 8);
+ off = ((s64)st->prom[2] << 16) + ((st->prom[4] * dt) >> 7);
+ sens = ((s64)st->prom[1] << 15) + ((st->prom[3] * dt) >> 8);
+
+ t = 2000 + ((st->prom[6] * dt) >> 23);
+ if (t < 2000) {
+ s64 off2, sens2, t2;
+
+ t2 = (dt * dt) >> 31;
+ off2 = (5 * (t - 2000) * (t - 2000)) >> 1;
+ sens2 = off2 >> 1;
+
+ if (t < -1500) {
+ s64 tmp = (t + 1500) * (t + 1500);
+
+ off2 += 7 * tmp;
+ sens2 += (11 * tmp) >> 1;
+ }
+
+ t -= t2;
+ off -= off2;
+ sens -= sens2;
+ }
+
+ *temp = t;
+ *pressure = (((p * sens) >> 21) - off) >> 15;
+
+ return 0;
+}
+
+static int ms5611_reset(struct iio_dev *indio_dev)
+{
+ int ret;
+ struct ms5611_state *st = iio_priv(indio_dev);
+
+ ret = st->reset(&indio_dev->dev);
+ if (ret < 0) {
+ dev_err(&indio_dev->dev, "failed to reset device\n");
+ return ret;
+ }
+
+ usleep_range(3000, 4000);
+
+ return 0;
+}
+
+static int ms5611_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long mask)
+{
+ int ret;
+ s32 temp, pressure;
+ struct ms5611_state *st = iio_priv(indio_dev);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_PROCESSED:
+ mutex_lock(&st->lock);
+ ret = ms5611_read_temp_and_pressure(indio_dev,
+ &temp, &pressure);
+ mutex_unlock(&st->lock);
+ if (ret < 0)
+ return ret;
+
+ switch (chan->type) {
+ case IIO_TEMP:
+ *val = temp * 10;
+ return IIO_VAL_INT;
+ case IIO_PRESSURE:
+ *val = pressure / 1000;
+ *val2 = (pressure % 1000) * 1000;
+ return IIO_VAL_INT_PLUS_MICRO;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static const struct iio_chan_spec ms5611_channels[] = {
+ {
+ .type = IIO_PRESSURE,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+ BIT(IIO_CHAN_INFO_SCALE)
+ },
+ {
+ .type = IIO_TEMP,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+ BIT(IIO_CHAN_INFO_SCALE)
+ }
+};
+
+static const struct iio_info ms5611_info = {
+ .read_raw = &ms5611_read_raw,
+ .driver_module = THIS_MODULE,
+};
+
+static int ms5611_init(struct iio_dev *indio_dev)
+{
+ int ret;
+
+ ret = ms5611_reset(indio_dev);
+ if (ret < 0)
+ return ret;
+
+ return ms5611_read_prom(indio_dev);
+}
+
+int ms5611_probe(struct iio_dev *indio_dev, struct device *dev)
+{
+ int ret;
+ struct ms5611_state *st = iio_priv(indio_dev);
+
+ mutex_init(&st->lock);
+ indio_dev->dev.parent = dev;
+ indio_dev->name = dev->driver->name;
+ indio_dev->info = &ms5611_info;
+ indio_dev->channels = ms5611_channels;
+ indio_dev->num_channels = ARRAY_SIZE(ms5611_channels);
+ indio_dev->modes = INDIO_DIRECT_MODE;
+
+ ret = ms5611_init(indio_dev);
+ if (ret < 0)
+ return ret;
+
+ return devm_iio_device_register(dev, indio_dev);
+}
+EXPORT_SYMBOL(ms5611_probe);
+
+MODULE_AUTHOR("Tomasz Duszynski <tduszyns@gmail.com>");
+MODULE_DESCRIPTION("MS5611 core driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/pressure/ms5611_i2c.c b/drivers/iio/pressure/ms5611_i2c.c
new file mode 100644
index 000000000000..748fd9acaad8
--- /dev/null
+++ b/drivers/iio/pressure/ms5611_i2c.c
@@ -0,0 +1,128 @@
+/*
+ * MS5611 pressure and temperature sensor driver (I2C bus)
+ *
+ * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 7-bit I2C slave addresses:
+ *
+ * 0x77 (CSB pin low)
+ * 0x76 (CSB pin high)
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+
+#include "ms5611.h"
+
+static int ms5611_i2c_reset(struct device *dev)
+{
+ struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+ return i2c_smbus_write_byte(st->client, MS5611_RESET);
+}
+
+static int ms5611_i2c_read_prom_word(struct device *dev, int index, u16 *word)
+{
+ int ret;
+ struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+ ret = i2c_smbus_read_word_swapped(st->client,
+ MS5611_READ_PROM_WORD + (index << 1));
+ if (ret < 0)
+ return ret;
+
+ *word = ret;
+
+ return 0;
+}
+
+static int ms5611_i2c_read_adc(struct ms5611_state *st, s32 *val)
+{
+ int ret;
+ u8 buf[3];
+
+ ret = i2c_smbus_read_i2c_block_data(st->client, MS5611_READ_ADC,
+ 3, buf);
+ if (ret < 0)
+ return ret;
+
+ *val = (buf[0] << 16) | (buf[1] << 8) | buf[2];
+
+ return 0;
+}
+
+static int ms5611_i2c_read_adc_temp_and_pressure(struct device *dev,
+ s32 *temp, s32 *pressure)
+{
+ int ret;
+ struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+ ret = i2c_smbus_write_byte(st->client, MS5611_START_TEMP_CONV);
+ if (ret < 0)
+ return ret;
+
+ usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX);
+
+ ret = ms5611_i2c_read_adc(st, temp);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_smbus_write_byte(st->client, MS5611_START_PRESSURE_CONV);
+ if (ret < 0)
+ return ret;
+
+ usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX);
+
+ return ms5611_i2c_read_adc(st, pressure);
+}
+
+static int ms5611_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct ms5611_state *st;
+ struct iio_dev *indio_dev;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_WRITE_BYTE |
+ I2C_FUNC_SMBUS_READ_WORD_DATA |
+ I2C_FUNC_SMBUS_READ_I2C_BLOCK))
+ return -ENODEV;
+
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ st = iio_priv(indio_dev);
+ st->reset = ms5611_i2c_reset;
+ st->read_prom_word = ms5611_i2c_read_prom_word;
+ st->read_adc_temp_and_pressure = ms5611_i2c_read_adc_temp_and_pressure;
+ st->client = client;
+
+ return ms5611_probe(indio_dev, &client->dev);
+}
+
+static const struct i2c_device_id ms5611_id[] = {
+ { "ms5611", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ms5611_id);
+
+static struct i2c_driver ms5611_driver = {
+ .driver = {
+ .name = "ms5611",
+ .owner = THIS_MODULE,
+ },
+ .id_table = ms5611_id,
+ .probe = ms5611_i2c_probe,
+};
+module_i2c_driver(ms5611_driver);
+
+MODULE_AUTHOR("Tomasz Duszynski <tduszyns@gmail.com>");
+MODULE_DESCRIPTION("MS5611 i2c driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c
new file mode 100644
index 000000000000..976726fd4e6c
--- /dev/null
+++ b/drivers/iio/pressure/ms5611_spi.c
@@ -0,0 +1,127 @@
+/*
+ * MS5611 pressure and temperature sensor driver (SPI bus)
+ *
+ * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+
+#include "ms5611.h"
+
+static int ms5611_spi_reset(struct device *dev)
+{
+ u8 cmd = MS5611_RESET;
+ struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+ return spi_write_then_read(st->client, &cmd, 1, NULL, 0);
+}
+
+static int ms5611_spi_read_prom_word(struct device *dev, int index, u16 *word)
+{
+ int ret;
+ struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+ ret = spi_w8r16be(st->client, MS5611_READ_PROM_WORD + (index << 1));
+ if (ret < 0)
+ return ret;
+
+ *word = ret;
+
+ return 0;
+}
+
+static int ms5611_spi_read_adc(struct device *dev, s32 *val)
+{
+ int ret;
+ u8 buf[3] = { MS5611_READ_ADC };
+ struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+ ret = spi_write_then_read(st->client, buf, 1, buf, 3);
+ if (ret < 0)
+ return ret;
+
+ *val = (buf[0] << 16) | (buf[1] << 8) | buf[2];
+
+ return 0;
+}
+
+static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev,
+ s32 *temp, s32 *pressure)
+{
+ u8 cmd;
+ int ret;
+ struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+ cmd = MS5611_START_TEMP_CONV;
+ ret = spi_write_then_read(st->client, &cmd, 1, NULL, 0);
+ if (ret < 0)
+ return ret;
+
+ usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX);
+
+ ret = ms5611_spi_read_adc(dev, temp);
+ if (ret < 0)
+ return ret;
+
+ cmd = MS5611_START_PRESSURE_CONV;
+ ret = spi_write_then_read(st->client, &cmd, 1, NULL, 0);
+ if (ret < 0)
+ return ret;
+
+ usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX);
+
+ return ms5611_spi_read_adc(dev, pressure);
+}
+
+static int ms5611_spi_probe(struct spi_device *spi)
+{
+ int ret;
+ struct ms5611_state *st;
+ struct iio_dev *indio_dev;
+
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ spi->mode = SPI_MODE_0;
+ spi->max_speed_hz = 20000000;
+ spi->bits_per_word = 8;
+ ret = spi_setup(spi);
+ if (ret < 0)
+ return ret;
+
+ st = iio_priv(indio_dev);
+ st->reset = ms5611_spi_reset;
+ st->read_prom_word = ms5611_spi_read_prom_word;
+ st->read_adc_temp_and_pressure = ms5611_spi_read_adc_temp_and_pressure;
+ st->client = spi;
+
+ return ms5611_probe(indio_dev, &spi->dev);
+}
+
+static const struct spi_device_id ms5611_id[] = {
+ { "ms5611", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(spi, ms5611_id);
+
+static struct spi_driver ms5611_driver = {
+ .driver = {
+ .name = "ms5611",
+ .owner = THIS_MODULE,
+ },
+ .id_table = ms5611_id,
+ .probe = ms5611_spi_probe,
+};
+module_spi_driver(ms5611_driver);
+
+MODULE_AUTHOR("Tomasz Duszynski <tduszyns@gmail.com>");
+MODULE_DESCRIPTION("MS5611 spi driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/proximity/sx9500.c b/drivers/iio/proximity/sx9500.c
index 74dff4e4a11a..0b4d79490b05 100644
--- a/drivers/iio/proximity/sx9500.c
+++ b/drivers/iio/proximity/sx9500.c
@@ -618,16 +618,12 @@ static int sx9500_gpio_probe(struct i2c_client *client,
dev = &client->dev;
/* data ready gpio interrupt pin */
- gpio = devm_gpiod_get_index(dev, SX9500_GPIO_NAME, 0);
+ gpio = devm_gpiod_get_index(dev, SX9500_GPIO_NAME, 0, GPIOD_IN);
if (IS_ERR(gpio)) {
dev_err(dev, "acpi gpio get index failed\n");
return PTR_ERR(gpio);
}
- ret = gpiod_direction_input(gpio);
- if (ret)
- return ret;
-
ret = gpiod_to_irq(gpio);
dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c
index c8b6ac8b2d69..e2c6f1a0d27f 100644
--- a/drivers/iio/temperature/mlx90614.c
+++ b/drivers/iio/temperature/mlx90614.c
@@ -23,8 +23,8 @@
#define MLX90614_OP_RAM 0x00
/* RAM offsets with 16-bit data, MSB first */
-#define MLX90614_TA 0x06 /* ambient temperature */
-#define MLX90614_TOBJ1 0x07 /* object temperature */
+#define MLX90614_TA (MLX90614_OP_RAM | 0x06) /* ambient temperature */
+#define MLX90614_TOBJ1 (MLX90614_OP_RAM | 0x07) /* object 1 temperature */
struct mlx90614_data {
struct i2c_client *client;
@@ -42,13 +42,13 @@ static int mlx90614_read_raw(struct iio_dev *indio_dev,
switch (channel->channel2) {
case IIO_MOD_TEMP_AMBIENT:
ret = i2c_smbus_read_word_data(data->client,
- MLX90614_OP_RAM | MLX90614_TA);
+ MLX90614_TA);
if (ret < 0)
return ret;
break;
case IIO_MOD_TEMP_OBJECT:
ret = i2c_smbus_read_word_data(data->client,
- MLX90614_OP_RAM | MLX90614_TOBJ1);
+ MLX90614_TOBJ1);
if (ret < 0)
return ret;
break;