diff options
| -rw-r--r-- | drivers/adc/adc-uclass.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/drivers/adc/adc-uclass.c b/drivers/adc/adc-uclass.c index 17c1a4e52a..738c1eabdc 100644 --- a/drivers/adc/adc-uclass.c +++ b/drivers/adc/adc-uclass.c @@ -264,10 +264,8 @@ static int adc_vdd_platdata_update(struct udevice *dev) * will bind before its supply regulator device, then the below 'get' * will return an error. */ - ret = device_get_supply_regulator(dev, "vdd-supply", - &uc_pdata->vdd_supply); - if (ret) - return ret; + if (!uc_pdata->vdd_supply) + return 0; ret = regulator_get_value(uc_pdata->vdd_supply); if (ret < 0) @@ -283,10 +281,8 @@ static int adc_vss_platdata_update(struct udevice *dev) struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev); int ret; - ret = device_get_supply_regulator(dev, "vss-supply", - &uc_pdata->vss_supply); - if (ret) - return ret; + if (!uc_pdata->vss_supply) + return 0; ret = regulator_get_value(uc_pdata->vss_supply); if (ret < 0) @@ -302,14 +298,11 @@ int adc_vdd_value(struct udevice *dev, int *uV) struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev); int ret, value_sign = uc_pdata->vdd_polarity_negative ? -1 : 1; - if (!uc_pdata->vdd_supply) - goto nodev; - /* Update the regulator Value. */ ret = adc_vdd_platdata_update(dev); if (ret) return ret; -nodev: + if (uc_pdata->vdd_microvolts == -ENODATA) return -ENODATA; @@ -323,14 +316,11 @@ int adc_vss_value(struct udevice *dev, int *uV) struct adc_uclass_platdata *uc_pdata = dev_get_uclass_platdata(dev); int ret, value_sign = uc_pdata->vss_polarity_negative ? -1 : 1; - if (!uc_pdata->vss_supply) - goto nodev; - /* Update the regulator Value. */ ret = adc_vss_platdata_update(dev); if (ret) return ret; -nodev: + if (uc_pdata->vss_microvolts == -ENODATA) return -ENODATA; @@ -348,7 +338,12 @@ static int adc_vdd_platdata_set(struct udevice *dev) prop = "vdd-polarity-negative"; uc_pdata->vdd_polarity_negative = dev_read_bool(dev, prop); - ret = adc_vdd_platdata_update(dev); + /* Optionally get regulators */ + ret = device_get_supply_regulator(dev, "vdd-supply", + &uc_pdata->vdd_supply); + if (!ret) + return adc_vdd_platdata_update(dev); + if (ret != -ENOENT) return ret; @@ -368,7 +363,11 @@ static int adc_vss_platdata_set(struct udevice *dev) prop = "vss-polarity-negative"; uc_pdata->vss_polarity_negative = dev_read_bool(dev, prop); - ret = adc_vss_platdata_update(dev); + ret = device_get_supply_regulator(dev, "vss-supply", + &uc_pdata->vss_supply); + if (!ret) + return adc_vss_platdata_update(dev); + if (ret != -ENOENT) return ret; |