diff options
| author | Tony Lindgren <tony@atomide.com> | 2017-05-22 17:51:46 -0700 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2017-06-03 08:43:17 +0100 |
| commit | 9d965236fe9b7006261eaf5a81ad36cedf2f9035 (patch) | |
| tree | b97a7d6a24d4cc28be8a2da0d07fd5fcdead4284 /drivers/iio/adc | |
| parent | 951d21de88e4df3449b063180ddec0c668b64c53 (diff) | |
| download | linux-9d965236fe9b7006261eaf5a81ad36cedf2f9035.tar.bz2 | |
iio: adc: cpcap: Remove hung interrupt quirk
This is no longer needed as the real problem was interrupt flags
not getting passed properly from device tree to the cpcap-core.c
mfd driver. This got fixed with commit ac89473213c6 ("mfd: cpcap:
Fix interrupt to use level interrupt") So let's remove ADC
interrupt specific the quirk.
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc')
| -rw-r--r-- | drivers/iio/adc/cpcap-adc.c | 24 |
1 files changed, 1 insertions, 23 deletions
diff --git a/drivers/iio/adc/cpcap-adc.c b/drivers/iio/adc/cpcap-adc.c index 11e65852725a..6e419d5a7c14 100644 --- a/drivers/iio/adc/cpcap-adc.c +++ b/drivers/iio/adc/cpcap-adc.c @@ -88,7 +88,7 @@ #define ST_ADC_CAL_BATTI_LOW_THRESHOLD 494 #define ST_ADC_CALIBRATE_DIFF_THRESHOLD 3 -#define CPCAP_ADC_MAX_RETRIES 5 /* Calibration and quirk */ +#define CPCAP_ADC_MAX_RETRIES 5 /* Calibration */ /** * struct cpcap_adc_ato - timing settings for cpcap adc @@ -634,27 +634,6 @@ static void cpcap_adc_setup_bank(struct cpcap_adc *ddata, } } -/* - * Occasionally the ADC does not seem to start and there will be no - * interrupt. Let's re-init interrupt to prevent the ADC from hanging - * for the next request. It is unclear why this happens, but the next - * request will usually work after doing this. - */ -static void cpcap_adc_quirk_reset_lost_irq(struct cpcap_adc *ddata) -{ - int error; - - dev_info(ddata->dev, "lost ADC irq, attempting to reinit\n"); - disable_irq(ddata->irq); - error = regmap_update_bits(ddata->reg, CPCAP_REG_ADCC2, - CPCAP_BIT_ADTRIG_DIS, - CPCAP_BIT_ADTRIG_DIS); - if (error) - dev_warn(ddata->dev, "%s reset failed: %i\n", - __func__, error); - enable_irq(ddata->irq); -} - static int cpcap_adc_start_bank(struct cpcap_adc *ddata, struct cpcap_adc_request *req) { @@ -672,7 +651,6 @@ static int cpcap_adc_start_bank(struct cpcap_adc *ddata, return 0; if (error == 0) { - cpcap_adc_quirk_reset_lost_irq(ddata); error = -ETIMEDOUT; continue; } |