diff options
Diffstat (limited to 'drivers/staging/iio/adc/spear_adc.c')
| -rw-r--r-- | drivers/staging/iio/adc/spear_adc.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c index 20f2d555e7cd..970d9edc73b6 100644 --- a/drivers/staging/iio/adc/spear_adc.c +++ b/drivers/staging/iio/adc/spear_adc.c @@ -146,7 +146,6 @@ static int spear_read_raw(struct iio_dev *indio_dev, long mask) { struct spear_adc_info *info = iio_priv(indio_dev); - u32 scale_mv; u32 status; switch (mask) { @@ -168,10 +167,9 @@ static int spear_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - scale_mv = (info->vref_external * 1000) >> DATA_BITS; - *val = scale_mv / 1000; - *val2 = (scale_mv % 1000) * 1000; - return IIO_VAL_INT_PLUS_MICRO; + *val = info->vref_external; + *val2 = DATA_BITS; + return IIO_VAL_FRACTIONAL_LOG2; } return -EINVAL; @@ -320,7 +318,7 @@ static int spear_adc_probe(struct platform_device *pdev) return -ENOMEM; } info->adc_base_spear3xx = - (struct adc_regs_spear3xx *)info->adc_base_spear6xx; + (struct adc_regs_spear3xx __iomem *)info->adc_base_spear6xx; info->clk = clk_get(dev, NULL); if (IS_ERR(info->clk)) { @@ -335,7 +333,7 @@ static int spear_adc_probe(struct platform_device *pdev) } irq = platform_get_irq(pdev, 0); - if ((irq < 0) || (irq >= NR_IRQS)) { + if (irq <= 0) { dev_err(dev, "failed getting interrupt resource\n"); ret = -EINVAL; goto errout3; |