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First set of IIO fixes for the 4.20 cycle.

Browse source 
* st_magn
   - Avoid an ordering issue that lead to large numbers of unhandled
     interrupts whilst enabling buffered capture.
 * hid-sensors
   - Fix a long running problem with signed values reading wrong from
     sysfs on these sensors.   It appears people were only using the
     buffered interface.  These typically occur in laptops so chances
     are everyone was using the sensor-proxy which will use the buffered
     interface by default.
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Merge tag 'iio-fixes-for-4.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 4.20 cycle.

* st_magn
  - Avoid an ordering issue that lead to large numbers of unhandled
    interrupts whilst enabling buffered capture.
* hid-sensors
  - Fix a long running problem with signed values reading wrong from
    sysfs on these sensors.   It appears people were only using the
    buffered interface.  These typically occur in laptops so chances
    are everyone was using the sensor-proxy which will use the buffered
    interface by default.

* tag 'iio-fixes-for-4.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers
  iio:st_magn: Fix enable device after trigger
This commit is contained in:
Greg Kroah-Hartman 2018-11-22 09:37:36 +01:00
commit c648284f6c
14 changed files with 55 additions and 34 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/hid/hid-sensor-custom.c
View file

@ -358,7 +358,7 @@ static ssize_t show_value(struct device *dev, struct device_attribute *attr,
sensor_inst->hsdev,
sensor_inst->hsdev->usage,
usage, report_id,
SENSOR_HUB_SYNC);
SENSOR_HUB_SYNC, false);
} else if (!strncmp(name, "units", strlen("units")))
value = sensor_inst->fields[field_index].attribute.units;
else if (!strncmp(name, "unit-expo", strlen("unit-expo")))

13
drivers/hid/hid-sensor-hub.c
View file

@ -299,7 +299,8 @@ EXPORT_SYMBOL_GPL(sensor_hub_get_feature);
int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
u32 usage_id,
u32 attr_usage_id, u32 report_id,
enum sensor_hub_read_flags flag)
enum sensor_hub_read_flags flag,
bool is_signed)
{
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
unsigned long flags;
@ -331,10 +332,16 @@ int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
&hsdev->pending.ready, HZ*5);
switch (hsdev->pending.raw_size) {
case 1:
ret_val = *(u8 *)hsdev->pending.raw_data;
if (is_signed)
ret_val = *(s8 *)hsdev->pending.raw_data;
else
ret_val = *(u8 *)hsdev->pending.raw_data;
break;
case 2:
ret_val = *(u16 *)hsdev->pending.raw_data;
if (is_signed)
ret_val = *(s16 *)hsdev->pending.raw_data;
else
ret_val = *(u16 *)hsdev->pending.raw_data;
break;
case 4:
ret_val = *(u32 *)hsdev->pending.raw_data;

5
drivers/iio/accel/hid-sensor-accel-3d.c
View file

@ -149,6 +149,7 @@ static int accel_3d_read_raw(struct iio_dev *indio_dev,
int report_id = -1;
u32 address;
int ret_type;
s32 min;
struct hid_sensor_hub_device *hsdev =
accel_state->common_attributes.hsdev;
@ -158,12 +159,14 @@ static int accel_3d_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_RAW:
hid_sensor_power_state(&accel_state->common_attributes, true);
report_id = accel_state->accel[chan->scan_index].report_id;
min = accel_state->accel[chan->scan_index].logical_minimum;
address = accel_3d_addresses[chan->scan_index];
if (report_id >= 0)
*val = sensor_hub_input_attr_get_raw_value(
accel_state->common_attributes.hsdev,
hsdev->usage, address, report_id,
SENSOR_HUB_SYNC);
SENSOR_HUB_SYNC,
min < 0);
else {
*val = 0;
hid_sensor_power_state(&accel_state->common_attributes,

5
drivers/iio/gyro/hid-sensor-gyro-3d.c
View file

@ -111,6 +111,7 @@ static int gyro_3d_read_raw(struct iio_dev *indio_dev,
int report_id = -1;
u32 address;
int ret_type;
s32 min;
*val = 0;
*val2 = 0;
@ -118,13 +119,15 @@ static int gyro_3d_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_RAW:
hid_sensor_power_state(&gyro_state->common_attributes, true);
report_id = gyro_state->gyro[chan->scan_index].report_id;
min = gyro_state->gyro[chan->scan_index].logical_minimum;
address = gyro_3d_addresses[chan->scan_index];
if (report_id >= 0)
*val = sensor_hub_input_attr_get_raw_value(
gyro_state->common_attributes.hsdev,
HID_USAGE_SENSOR_GYRO_3D, address,
report_id,
SENSOR_HUB_SYNC);
SENSOR_HUB_SYNC,
min < 0);
else {
*val = 0;
hid_sensor_power_state(&gyro_state->common_attributes,

3
drivers/iio/humidity/hid-sensor-humidity.c
View file

@ -75,7 +75,8 @@ static int humidity_read_raw(struct iio_dev *indio_dev,
HID_USAGE_SENSOR_HUMIDITY,
HID_USAGE_SENSOR_ATMOSPHERIC_HUMIDITY,
humid_st->humidity_attr.report_id,
SENSOR_HUB_SYNC);
SENSOR_HUB_SYNC,
humid_st->humidity_attr.logical_minimum < 0);
hid_sensor_power_state(&humid_st->common_attributes, false);
return IIO_VAL_INT;

8
drivers/iio/light/hid-sensor-als.c
View file

@ -93,6 +93,7 @@ static int als_read_raw(struct iio_dev *indio_dev,
int report_id = -1;
u32 address;
int ret_type;
s32 min;
*val = 0;
*val2 = 0;
@ -102,8 +103,8 @@ static int als_read_raw(struct iio_dev *indio_dev,
case CHANNEL_SCAN_INDEX_INTENSITY:
case CHANNEL_SCAN_INDEX_ILLUM:
report_id = als_state->als_illum.report_id;
address =
HID_USAGE_SENSOR_LIGHT_ILLUM;
min = als_state->als_illum.logical_minimum;
address = HID_USAGE_SENSOR_LIGHT_ILLUM;
break;
default:
report_id = -1;
@ -116,7 +117,8 @@ static int als_read_raw(struct iio_dev *indio_dev,
als_state->common_attributes.hsdev,
HID_USAGE_SENSOR_ALS, address,
report_id,
SENSOR_HUB_SYNC);
SENSOR_HUB_SYNC,
min < 0);
hid_sensor_power_state(&als_state->common_attributes,
false);
} else {

8
drivers/iio/light/hid-sensor-prox.c
View file

@ -73,6 +73,7 @@ static int prox_read_raw(struct iio_dev *indio_dev,
int report_id = -1;
u32 address;
int ret_type;
s32 min;
*val = 0;
*val2 = 0;
@ -81,8 +82,8 @@ static int prox_read_raw(struct iio_dev *indio_dev,
switch (chan->scan_index) {
case CHANNEL_SCAN_INDEX_PRESENCE:
report_id = prox_state->prox_attr.report_id;
address =
HID_USAGE_SENSOR_HUMAN_PRESENCE;
min = prox_state->prox_attr.logical_minimum;
address = HID_USAGE_SENSOR_HUMAN_PRESENCE;
break;
default:
report_id = -1;
@ -95,7 +96,8 @@ static int prox_read_raw(struct iio_dev *indio_dev,
prox_state->common_attributes.hsdev,
HID_USAGE_SENSOR_PROX, address,
report_id,
SENSOR_HUB_SYNC);
SENSOR_HUB_SYNC,
min < 0);
hid_sensor_power_state(&prox_state->common_attributes,
false);
} else {

8
drivers/iio/magnetometer/hid-sensor-magn-3d.c
View file

@ -163,21 +163,23 @@ static int magn_3d_read_raw(struct iio_dev *indio_dev,
int report_id = -1;
u32 address;
int ret_type;
s32 min;
*val = 0;
*val2 = 0;
switch (mask) {
case IIO_CHAN_INFO_RAW:
hid_sensor_power_state(&magn_state->magn_flux_attributes, true);
report_id =
magn_state->magn[chan->address].report_id;
report_id = magn_state->magn[chan->address].report_id;
min = magn_state->magn[chan->address].logical_minimum;
address = magn_3d_addresses[chan->address];
if (report_id >= 0)
*val = sensor_hub_input_attr_get_raw_value(
magn_state->magn_flux_attributes.hsdev,
HID_USAGE_SENSOR_COMPASS_3D, address,
report_id,
SENSOR_HUB_SYNC);
SENSOR_HUB_SYNC,
min < 0);
else {
*val = 0;
hid_sensor_power_state(

12
drivers/iio/magnetometer/st_magn_buffer.c
View file

@ -30,11 +30,6 @@ int st_magn_trig_set_state(struct iio_trigger *trig, bool state)
return st_sensors_set_dataready_irq(indio_dev, state);
}
static int st_magn_buffer_preenable(struct iio_dev *indio_dev)
{
return st_sensors_set_enable(indio_dev, true);
}
static int st_magn_buffer_postenable(struct iio_dev *indio_dev)
{
int err;
@ -50,7 +45,7 @@ static int st_magn_buffer_postenable(struct iio_dev *indio_dev)
if (err < 0)
goto st_magn_buffer_postenable_error;
return err;
return st_sensors_set_enable(indio_dev, true);
st_magn_buffer_postenable_error:
kfree(mdata->buffer_data);
@ -63,11 +58,11 @@ static int st_magn_buffer_predisable(struct iio_dev *indio_dev)
int err;
struct st_sensor_data *mdata = iio_priv(indio_dev);
err = iio_triggered_buffer_predisable(indio_dev);
err = st_sensors_set_enable(indio_dev, false);
if (err < 0)
goto st_magn_buffer_predisable_error;
err = st_sensors_set_enable(indio_dev, false);
err = iio_triggered_buffer_predisable(indio_dev);
st_magn_buffer_predisable_error:
kfree(mdata->buffer_data);
@ -75,7 +70,6 @@ static int st_magn_buffer_predisable(struct iio_dev *indio_dev)
}
static const struct iio_buffer_setup_ops st_magn_buffer_setup_ops = {
.preenable = &st_magn_buffer_preenable,
.postenable = &st_magn_buffer_postenable,
.predisable = &st_magn_buffer_predisable,
};

8
drivers/iio/orientation/hid-sensor-incl-3d.c
View file

@ -111,21 +111,23 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev,
int report_id = -1;
u32 address;
int ret_type;
s32 min;
*val = 0;
*val2 = 0;
switch (mask) {
case IIO_CHAN_INFO_RAW:
hid_sensor_power_state(&incl_state->common_attributes, true);
report_id =
incl_state->incl[chan->scan_index].report_id;
report_id = incl_state->incl[chan->scan_index].report_id;
min = incl_state->incl[chan->scan_index].logical_minimum;
address = incl_3d_addresses[chan->scan_index];
if (report_id >= 0)
*val = sensor_hub_input_attr_get_raw_value(
incl_state->common_attributes.hsdev,
HID_USAGE_SENSOR_INCLINOMETER_3D, address,
report_id,
SENSOR_HUB_SYNC);
SENSOR_HUB_SYNC,
min < 0);
else {
hid_sensor_power_state(&incl_state->common_attributes,
false);

8
drivers/iio/pressure/hid-sensor-press.c
View file

@ -77,6 +77,7 @@ static int press_read_raw(struct iio_dev *indio_dev,
int report_id = -1;
u32 address;
int ret_type;
s32 min;
*val = 0;
*val2 = 0;
@ -85,8 +86,8 @@ static int press_read_raw(struct iio_dev *indio_dev,
switch (chan->scan_index) {
case CHANNEL_SCAN_INDEX_PRESSURE:
report_id = press_state->press_attr.report_id;
address =
HID_USAGE_SENSOR_ATMOSPHERIC_PRESSURE;
min = press_state->press_attr.logical_minimum;
address = HID_USAGE_SENSOR_ATMOSPHERIC_PRESSURE;
break;
default:
report_id = -1;
@ -99,7 +100,8 @@ static int press_read_raw(struct iio_dev *indio_dev,
press_state->common_attributes.hsdev,
HID_USAGE_SENSOR_PRESSURE, address,
report_id,
SENSOR_HUB_SYNC);
SENSOR_HUB_SYNC,
min < 0);
hid_sensor_power_state(&press_state->common_attributes,
false);
} else {

3
drivers/iio/temperature/hid-sensor-temperature.c
View file

@ -76,7 +76,8 @@ static int temperature_read_raw(struct iio_dev *indio_dev,
HID_USAGE_SENSOR_TEMPERATURE,
HID_USAGE_SENSOR_DATA_ENVIRONMENTAL_TEMPERATURE,
temp_st->temperature_attr.report_id,
SENSOR_HUB_SYNC);
SENSOR_HUB_SYNC,
temp_st->temperature_attr.logical_minimum < 0);
hid_sensor_power_state(
&temp_st->common_attributes,
false);

2
drivers/rtc/rtc-hid-sensor-time.c
View file

@ -213,7 +213,7 @@ static int hid_rtc_read_time(struct device *dev, struct rtc_time *tm)
/* get a report with all values through requesting one value */
sensor_hub_input_attr_get_raw_value(time_state->common_attributes.hsdev,
HID_USAGE_SENSOR_TIME, hid_time_addresses[0],
time_state->info[0].report_id, SENSOR_HUB_SYNC);
time_state->info[0].report_id, SENSOR_HUB_SYNC, false);
/* wait for all values (event) */
ret = wait_for_completion_killable_timeout(
&time_state->comp_last_time, HZ*6);

4
include/linux/hid-sensor-hub.h
View file

@ -177,6 +177,7 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
* @attr_usage_id: Attribute usage id as per spec
* @report_id: Report id to look for
* @flag: Synchronous or asynchronous read
* @is_signed: If true then fields < 32 bits will be sign-extended
*
* Issues a synchronous or asynchronous read request for an input attribute.
* Returns data upto 32 bits.
@ -190,7 +191,8 @@ enum sensor_hub_read_flags {
int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
u32 usage_id,
u32 attr_usage_id, u32 report_id,
enum sensor_hub_read_flags flag
enum sensor_hub_read_flags flag,
bool is_signed
);
/**