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First round of IIO fixes for the 3.17 cycle. 

* Fix an overwritten error return that can prevent deferred probing when
   using of_iio_channel_get_by_name
 * A series that deals with an incorrect reference count when the default
   trigger is set within the main probe routine for a driver.  Can result
   in a double free if the trigger is changed.
 * Fix a buglet with xilinx-xadc concerning setup of the address for an
   aux channel.
 * At91 adc driver could sometimes get a touchscreen reading rather than
   the intended adc channel.  This is fixed by using the channel data register
   instead.
 * Fix some ST magnetometer gain values that differ in production parts from
   the prerelease ones used for driver development.
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Merge tag 'iio-fixes-3.17a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First round of IIO fixes for the 3.17 cycle.

* Fix an overwritten error return that can prevent deferred probing when
  using of_iio_channel_get_by_name
* A series that deals with an incorrect reference count when the default
  trigger is set within the main probe routine for a driver.  Can result
  in a double free if the trigger is changed.
* Fix a buglet with xilinx-xadc concerning setup of the address for an
  aux channel.
* At91 adc driver could sometimes get a touchscreen reading rather than
  the intended adc channel.  This is fixed by using the channel data register
  instead.
* Fix some ST magnetometer gain values that differ in production parts from
  the prerelease ones used for driver development.
This commit is contained in:
Greg Kroah-Hartman 2014-09-19 15:29:39 -07:00
Родитель 9e82bf0141 a31d092899
Коммит 922b83b4aa
12 изменённых файлов: 50 добавлений и 37 удалений
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2
drivers/iio/accel/bma180.c
Просмотреть файл

@ -571,7 +571,7 @@ static int bma180_probe(struct i2c_client *client,
trig->ops = &bma180_trigger_ops; trig->ops = &bma180_trigger_ops;
iio_trigger_set_drvdata(trig, indio_dev); iio_trigger_set_drvdata(trig, indio_dev);
data->trig = trig; data->trig = trig;
indio_dev->trig = trig; indio_dev->trig = iio_trigger_get(trig);
ret = iio_trigger_register(trig); ret = iio_trigger_register(trig);
if (ret) if (ret)

2
drivers/iio/adc/ad_sigma_delta.c
Просмотреть файл

@ -472,7 +472,7 @@ static int ad_sd_probe_trigger(struct iio_dev *indio_dev)
goto error_free_irq; goto error_free_irq;
/* select default trigger */ /* select default trigger */
indio_dev->trig = sigma_delta->trig; indio_dev->trig = iio_trigger_get(sigma_delta->trig);
return 0; return 0;

12
drivers/iio/adc/at91_adc.c
Просмотреть файл

@ -196,6 +196,7 @@ struct at91_adc_state {
bool done; bool done;
int irq; int irq;
u16 last_value; u16 last_value;
int chnb;
struct mutex lock; struct mutex lock;
u8 num_channels; u8 num_channels;
void __iomem *reg_base; void __iomem *reg_base;
@ -274,7 +275,7 @@ void handle_adc_eoc_trigger(int irq, struct iio_dev *idev)
disable_irq_nosync(irq); disable_irq_nosync(irq);
iio_trigger_poll(idev->trig); iio_trigger_poll(idev->trig);
} else { } else {
st->last_value = at91_adc_readl(st, AT91_ADC_LCDR); st->last_value = at91_adc_readl(st, AT91_ADC_CHAN(st, st->chnb));
st->done = true; st->done = true;
wake_up_interruptible(&st->wq_data_avail); wake_up_interruptible(&st->wq_data_avail);
} }
@ -351,7 +352,7 @@ static irqreturn_t at91_adc_rl_interrupt(int irq, void *private)
unsigned int reg; unsigned int reg;
status &= at91_adc_readl(st, AT91_ADC_IMR); status &= at91_adc_readl(st, AT91_ADC_IMR);
if (status & st->registers->drdy_mask) if (status & GENMASK(st->num_channels - 1, 0))
handle_adc_eoc_trigger(irq, idev); handle_adc_eoc_trigger(irq, idev);
if (status & AT91RL_ADC_IER_PEN) { if (status & AT91RL_ADC_IER_PEN) {
@ -418,7 +419,7 @@ static irqreturn_t at91_adc_9x5_interrupt(int irq, void *private)
AT91_ADC_IER_YRDY | AT91_ADC_IER_YRDY |
AT91_ADC_IER_PRDY; AT91_ADC_IER_PRDY;
if (status & st->registers->drdy_mask) if (status & GENMASK(st->num_channels - 1, 0))
handle_adc_eoc_trigger(irq, idev); handle_adc_eoc_trigger(irq, idev);
if (status & AT91_ADC_IER_PEN) { if (status & AT91_ADC_IER_PEN) {
@ -689,9 +690,10 @@ static int at91_adc_read_raw(struct iio_dev *idev,
case IIO_CHAN_INFO_RAW: case IIO_CHAN_INFO_RAW:
mutex_lock(&st->lock); mutex_lock(&st->lock);
st->chnb = chan->channel;
at91_adc_writel(st, AT91_ADC_CHER, at91_adc_writel(st, AT91_ADC_CHER,
AT91_ADC_CH(chan->channel)); AT91_ADC_CH(chan->channel));
at91_adc_writel(st, AT91_ADC_IER, st->registers->drdy_mask); at91_adc_writel(st, AT91_ADC_IER, BIT(chan->channel));
at91_adc_writel(st, AT91_ADC_CR, AT91_ADC_START); at91_adc_writel(st, AT91_ADC_CR, AT91_ADC_START);
ret = wait_event_interruptible_timeout(st->wq_data_avail, ret = wait_event_interruptible_timeout(st->wq_data_avail,
@ -708,7 +710,7 @@ static int at91_adc_read_raw(struct iio_dev *idev,
at91_adc_writel(st, AT91_ADC_CHDR, at91_adc_writel(st, AT91_ADC_CHDR,
AT91_ADC_CH(chan->channel)); AT91_ADC_CH(chan->channel));
at91_adc_writel(st, AT91_ADC_IDR, st->registers->drdy_mask); at91_adc_writel(st, AT91_ADC_IDR, BIT(chan->channel));
st->last_value = 0; st->last_value = 0;
st->done = false; st->done = false;

2
drivers/iio/adc/xilinx-xadc-core.c
Просмотреть файл

@ -1126,7 +1126,7 @@ static int xadc_parse_dt(struct iio_dev *indio_dev, struct device_node *np,
chan->address = XADC_REG_VPVN; chan->address = XADC_REG_VPVN;
} else { } else {
chan->scan_index = 15 + reg; chan->scan_index = 15 + reg;
chan->scan_index = XADC_REG_VAUX(reg - 1); chan->address = XADC_REG_VAUX(reg - 1);
} }
num_channels++; num_channels++;
chan++; chan++;

3
drivers/iio/common/hid-sensors/hid-sensor-trigger.c
Просмотреть файл

@ -122,7 +122,8 @@ int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
dev_err(&indio_dev->dev, "Trigger Register Failed\n"); dev_err(&indio_dev->dev, "Trigger Register Failed\n");
goto error_free_trig; goto error_free_trig;
} }
indio_dev->trig = attrb->trigger = trig; attrb->trigger = trig;
indio_dev->trig = iio_trigger_get(trig);
return ret; return ret;

2
drivers/iio/common/st_sensors/st_sensors_trigger.c
Просмотреть файл

@ -49,7 +49,7 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
dev_err(&indio_dev->dev, "failed to register iio trigger.\n"); dev_err(&indio_dev->dev, "failed to register iio trigger.\n");
goto iio_trigger_register_error; goto iio_trigger_register_error;
} }
indio_dev->trig = sdata->trig; indio_dev->trig = iio_trigger_get(sdata->trig);
return 0; return 0;

2
drivers/iio/gyro/itg3200_buffer.c
Просмотреть файл

@ -132,7 +132,7 @@ int itg3200_probe_trigger(struct iio_dev *indio_dev)
goto error_free_irq; goto error_free_irq;
/* select default trigger */ /* select default trigger */
indio_dev->trig = st->trig; indio_dev->trig = iio_trigger_get(st->trig);
return 0; return 0;

2
drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
Просмотреть файл

@ -135,7 +135,7 @@ int inv_mpu6050_probe_trigger(struct iio_dev *indio_dev)
ret = iio_trigger_register(st->trig); ret = iio_trigger_register(st->trig);
if (ret) if (ret)
goto error_free_irq; goto error_free_irq;
indio_dev->trig = st->trig; indio_dev->trig = iio_trigger_get(st->trig);
return 0; return 0;

2
drivers/iio/inkern.c
Просмотреть файл

@ -178,7 +178,7 @@ static struct iio_channel *of_iio_channel_get_by_name(struct device_node *np,
index = of_property_match_string(np, "io-channel-names", index = of_property_match_string(np, "io-channel-names",
name); name);
chan = of_iio_channel_get(np, index); chan = of_iio_channel_get(np, index);
if (!IS_ERR(chan)) if (!IS_ERR(chan) || PTR_ERR(chan) == -EPROBE_DEFER)
break; break;
else if (name && index >= 0) { else if (name && index >= 0) {
pr_err("ERROR: could not get IIO channel %s:%s(%i)\n", pr_err("ERROR: could not get IIO channel %s:%s(%i)\n",

52
drivers/iio/magnetometer/st_magn_core.c
Просмотреть файл

@ -42,7 +42,8 @@
#define ST_MAGN_FS_AVL_5600MG 5600 #define ST_MAGN_FS_AVL_5600MG 5600
#define ST_MAGN_FS_AVL_8000MG 8000 #define ST_MAGN_FS_AVL_8000MG 8000
#define ST_MAGN_FS_AVL_8100MG 8100 #define ST_MAGN_FS_AVL_8100MG 8100
#define ST_MAGN_FS_AVL_10000MG 10000 #define ST_MAGN_FS_AVL_12000MG 12000
#define ST_MAGN_FS_AVL_16000MG 16000
/* CUSTOM VALUES FOR SENSOR 1 */ /* CUSTOM VALUES FOR SENSOR 1 */
#define ST_MAGN_1_WAI_EXP 0x3c #define ST_MAGN_1_WAI_EXP 0x3c
@ -69,20 +70,20 @@
#define ST_MAGN_1_FS_AVL_4700_VAL 0x05 #define ST_MAGN_1_FS_AVL_4700_VAL 0x05
#define ST_MAGN_1_FS_AVL_5600_VAL 0x06 #define ST_MAGN_1_FS_AVL_5600_VAL 0x06
#define ST_MAGN_1_FS_AVL_8100_VAL 0x07 #define ST_MAGN_1_FS_AVL_8100_VAL 0x07
#define ST_MAGN_1_FS_AVL_1300_GAIN_XY 1100 #define ST_MAGN_1_FS_AVL_1300_GAIN_XY 909
#define ST_MAGN_1_FS_AVL_1900_GAIN_XY 855 #define ST_MAGN_1_FS_AVL_1900_GAIN_XY 1169
#define ST_MAGN_1_FS_AVL_2500_GAIN_XY 670 #define ST_MAGN_1_FS_AVL_2500_GAIN_XY 1492
#define ST_MAGN_1_FS_AVL_4000_GAIN_XY 450 #define ST_MAGN_1_FS_AVL_4000_GAIN_XY 2222
#define ST_MAGN_1_FS_AVL_4700_GAIN_XY 400 #define ST_MAGN_1_FS_AVL_4700_GAIN_XY 2500
#define ST_MAGN_1_FS_AVL_5600_GAIN_XY 330 #define ST_MAGN_1_FS_AVL_5600_GAIN_XY 3030
#define ST_MAGN_1_FS_AVL_8100_GAIN_XY 230 #define ST_MAGN_1_FS_AVL_8100_GAIN_XY 4347
#define ST_MAGN_1_FS_AVL_1300_GAIN_Z 980 #define ST_MAGN_1_FS_AVL_1300_GAIN_Z 1020
#define ST_MAGN_1_FS_AVL_1900_GAIN_Z 760 #define ST_MAGN_1_FS_AVL_1900_GAIN_Z 1315
#define ST_MAGN_1_FS_AVL_2500_GAIN_Z 600 #define ST_MAGN_1_FS_AVL_2500_GAIN_Z 1666
#define ST_MAGN_1_FS_AVL_4000_GAIN_Z 400 #define ST_MAGN_1_FS_AVL_4000_GAIN_Z 2500
#define ST_MAGN_1_FS_AVL_4700_GAIN_Z 355 #define ST_MAGN_1_FS_AVL_4700_GAIN_Z 2816
#define ST_MAGN_1_FS_AVL_5600_GAIN_Z 295 #define ST_MAGN_1_FS_AVL_5600_GAIN_Z 3389
#define ST_MAGN_1_FS_AVL_8100_GAIN_Z 205 #define ST_MAGN_1_FS_AVL_8100_GAIN_Z 4878
#define ST_MAGN_1_MULTIREAD_BIT false #define ST_MAGN_1_MULTIREAD_BIT false
/* CUSTOM VALUES FOR SENSOR 2 */ /* CUSTOM VALUES FOR SENSOR 2 */
@ -105,10 +106,12 @@
#define ST_MAGN_2_FS_MASK 0x60 #define ST_MAGN_2_FS_MASK 0x60
#define ST_MAGN_2_FS_AVL_4000_VAL 0x00 #define ST_MAGN_2_FS_AVL_4000_VAL 0x00
#define ST_MAGN_2_FS_AVL_8000_VAL 0x01 #define ST_MAGN_2_FS_AVL_8000_VAL 0x01
#define ST_MAGN_2_FS_AVL_10000_VAL 0x02 #define ST_MAGN_2_FS_AVL_12000_VAL 0x02
#define ST_MAGN_2_FS_AVL_4000_GAIN 430 #define ST_MAGN_2_FS_AVL_16000_VAL 0x03
#define ST_MAGN_2_FS_AVL_8000_GAIN 230 #define ST_MAGN_2_FS_AVL_4000_GAIN 146
#define ST_MAGN_2_FS_AVL_10000_GAIN 230 #define ST_MAGN_2_FS_AVL_8000_GAIN 292
#define ST_MAGN_2_FS_AVL_12000_GAIN 438
#define ST_MAGN_2_FS_AVL_16000_GAIN 584
#define ST_MAGN_2_MULTIREAD_BIT false #define ST_MAGN_2_MULTIREAD_BIT false
#define ST_MAGN_2_OUT_X_L_ADDR 0x28 #define ST_MAGN_2_OUT_X_L_ADDR 0x28
#define ST_MAGN_2_OUT_Y_L_ADDR 0x2a #define ST_MAGN_2_OUT_Y_L_ADDR 0x2a
@ -266,9 +269,14 @@ static const struct st_sensors st_magn_sensors[] = {
.gain = ST_MAGN_2_FS_AVL_8000_GAIN, .gain = ST_MAGN_2_FS_AVL_8000_GAIN,
}, },
[2] = { [2] = {
.num = ST_MAGN_FS_AVL_10000MG, .num = ST_MAGN_FS_AVL_12000MG,
.value = ST_MAGN_2_FS_AVL_10000_VAL, .value = ST_MAGN_2_FS_AVL_12000_VAL,
.gain = ST_MAGN_2_FS_AVL_10000_GAIN, .gain = ST_MAGN_2_FS_AVL_12000_GAIN,
},
[3] = {
.num = ST_MAGN_FS_AVL_16000MG,
.value = ST_MAGN_2_FS_AVL_16000_VAL,
.gain = ST_MAGN_2_FS_AVL_16000_GAIN,
}, },
}, },
}, },

2
drivers/staging/iio/meter/ade7758_trigger.c
Просмотреть файл

@ -85,7 +85,7 @@ int ade7758_probe_trigger(struct iio_dev *indio_dev)
ret = iio_trigger_register(st->trig); ret = iio_trigger_register(st->trig);
/* select default trigger */ /* select default trigger */
indio_dev->trig = st->trig; indio_dev->trig = iio_trigger_get(st->trig);
if (ret) if (ret)
goto error_free_irq; goto error_free_irq;

4
include/linux/iio/trigger.h
Просмотреть файл

@ -84,10 +84,12 @@ static inline void iio_trigger_put(struct iio_trigger *trig)
put_device(&trig->dev); put_device(&trig->dev);
} }
static inline void iio_trigger_get(struct iio_trigger *trig) static inline struct iio_trigger *iio_trigger_get(struct iio_trigger *trig)
{ {
get_device(&trig->dev); get_device(&trig->dev);
__module_get(trig->ops->owner); __module_get(trig->ops->owner);
return trig;
} }
/** /**