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Second set of IIO fixes for the 4.10 cycle.

Browse source 
* afe4403
   - retrieve valid iio_dev in suspend / resume. Previously using the wrong
     dev for a call to dev_to_iio_dev.
 * afe4404
   - retrieve valid iio_dev in suspend / resume. Previously using the wrong
     dev for a call to dev_to_iio_dev.
 * dht11
   - Something seems to have caused a regression in timing on the raspberry pi
     2B.  However, the bug that it threw up was real. msleep was occasionally
     resulting in very long sleeps, over the limit possible to read from this
     chip. Switch to usleep_range to avoid this.  The timing needed by this
     part is very fiddly.
 * max30100
   - wrong parenthesis around fifo count check meant it always read after the
     almost_full state had been reached. I've tagged this with a fixes tag which
     covers the last patch that it will not need precursor patches.  The bug
     predates that but will need backporting.
 * palmas_gpadc.
   - retrieve valid iio_dev in suspend / resume. Previously using the wrong
     dev for a call to dev_to_iio_dev.
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Merge tag 'iio-fixes-for-4.10b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

Second set of IIO fixes for the 4.10 cycle.
* afe4403
  - retrieve valid iio_dev in suspend / resume. Previously using the wrong
    dev for a call to dev_to_iio_dev.
* afe4404
  - retrieve valid iio_dev in suspend / resume. Previously using the wrong
    dev for a call to dev_to_iio_dev.
* dht11
  - Something seems to have caused a regression in timing on the raspberry pi
    2B.  However, the bug that it threw up was real. msleep was occasionally
    resulting in very long sleeps, over the limit possible to read from this
    chip. Switch to usleep_range to avoid this.  The timing needed by this
    part is very fiddly.
* max30100
  - wrong parenthesis around fifo count check meant it always read after the
    almost_full state had been reached. I've tagged this with a fixes tag which
    covers the last patch that it will not need precursor patches.  The bug
    predates that but will need backporting.
* palmas_gpadc.
  - retrieve valid iio_dev in suspend / resume. Previously using the wrong
    dev for a call to dev_to_iio_dev.
This commit is contained in:
Greg Kroah-Hartman 2017-01-23 09:29:06 +01:00
commit 9579c4dc21
5 changed files with 11 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

4
drivers/iio/adc/palmas_gpadc.c
View file

@ -775,7 +775,7 @@ static int palmas_adc_wakeup_reset(struct palmas_gpadc *adc)
static int palmas_gpadc_suspend(struct device *dev)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct palmas_gpadc *adc = iio_priv(indio_dev);
int wakeup = adc->wakeup1_enable || adc->wakeup2_enable;
int ret;
@ -798,7 +798,7 @@ static int palmas_gpadc_suspend(struct device *dev)
static int palmas_gpadc_resume(struct device *dev)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct palmas_gpadc *adc = iio_priv(indio_dev);
int wakeup = adc->wakeup1_enable || adc->wakeup2_enable;
int ret;

4
drivers/iio/health/afe4403.c
View file

@ -422,7 +422,7 @@ MODULE_DEVICE_TABLE(of, afe4403_of_match);
static int __maybe_unused afe4403_suspend(struct device *dev)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct iio_dev *indio_dev = spi_get_drvdata(to_spi_device(dev));
struct afe4403_data *afe = iio_priv(indio_dev);
int ret;
@ -443,7 +443,7 @@ static int __maybe_unused afe4403_suspend(struct device *dev)
static int __maybe_unused afe4403_resume(struct device *dev)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct iio_dev *indio_dev = spi_get_drvdata(to_spi_device(dev));
struct afe4403_data *afe = iio_priv(indio_dev);
int ret;

4
drivers/iio/health/afe4404.c
View file

@ -428,7 +428,7 @@ MODULE_DEVICE_TABLE(of, afe4404_of_match);
static int __maybe_unused afe4404_suspend(struct device *dev)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
struct afe4404_data *afe = iio_priv(indio_dev);
int ret;
@ -449,7 +449,7 @@ static int __maybe_unused afe4404_suspend(struct device *dev)
static int __maybe_unused afe4404_resume(struct device *dev)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
struct afe4404_data *afe = iio_priv(indio_dev);
int ret;

2
drivers/iio/health/max30100.c
View file

@ -238,7 +238,7 @@ static irqreturn_t max30100_interrupt_handler(int irq, void *private)
mutex_lock(&data->lock);
while (cnt || (cnt = max30100_fifo_count(data) > 0)) {
while (cnt || (cnt = max30100_fifo_count(data)) > 0) {
ret = max30100_read_measurement(data);
if (ret)
break;

6
drivers/iio/humidity/dht11.c
View file

@ -71,7 +71,8 @@
* a) select an implementation using busy loop polling on those systems
* b) use the checksum to do some probabilistic decoding
*/
#define DHT11_START_TRANSMISSION 18 /* ms */
#define DHT11_START_TRANSMISSION_MIN 18000 /* us */
#define DHT11_START_TRANSMISSION_MAX 20000 /* us */
#define DHT11_MIN_TIMERES 34000 /* ns */
#define DHT11_THRESHOLD 49000 /* ns */
#define DHT11_AMBIG_LOW 23000 /* ns */
@ -228,7 +229,8 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
ret = gpio_direction_output(dht11->gpio, 0);
if (ret)
goto err;
msleep(DHT11_START_TRANSMISSION);
usleep_range(DHT11_START_TRANSMISSION_MIN,
DHT11_START_TRANSMISSION_MAX);
ret = gpio_direction_input(dht11->gpio);
if (ret)
goto err;