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staging/iio/mxs-lradc: cleanup masklength

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We know the exact iio->masklength = LRADC_MAX_TOTAL_CHANS.
Let's use it consistently.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Michał Mirosław 2013-05-04 14:19:00 +01:00 committed by Jonathan Cameron
parent bec1889d24
commit f4914e5ef0
1 changed files with 4 additions and 4 deletions
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8
drivers/staging/iio/adc/mxs-lradc.c
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@ -620,7 +620,7 @@ static irqreturn_t mxs_lradc_trigger_handler(int irq, void *p)
((LRADC_DELAY_TIMER_LOOP - 1) << LRADC_CH_NUM_SAMPLES_OFFSET);
unsigned int i, j = 0;
for_each_set_bit(i, iio->active_scan_mask, iio->masklength) {
for_each_set_bit(i, iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS) {
lradc->buffer[j] = readl(lradc->base + LRADC_CH(j));
writel(chan_value, lradc->base + LRADC_CH(j));
lradc->buffer[j] &= LRADC_CH_VALUE_MASK;
@ -775,8 +775,7 @@ static bool mxs_lradc_validate_scan_mask(struct iio_dev *iio,
const unsigned long *mask)
{
struct mxs_lradc *lradc = iio_priv(iio);
const int len = iio->masklength;
const int map_chans = bitmap_weight(mask, len);
const int map_chans = bitmap_weight(mask, LRADC_MAX_TOTAL_CHANS);
int rsvd_chans = 0;
unsigned long rsvd_mask = 0;
@ -793,7 +792,7 @@ static bool mxs_lradc_validate_scan_mask(struct iio_dev *iio,
rsvd_chans++;
/* Test for attempts to map channels with special mode of operation. */
if (bitmap_intersects(mask, &rsvd_mask, len))
if (bitmap_intersects(mask, &rsvd_mask, LRADC_MAX_TOTAL_CHANS))
return false;
/* Test for attempts to map more channels then available slots. */
@ -969,6 +968,7 @@ static int mxs_lradc_probe(struct platform_device *pdev)
iio->modes = INDIO_DIRECT_MODE;
iio->channels = mxs_lradc_chan_spec;
iio->num_channels = ARRAY_SIZE(mxs_lradc_chan_spec);
iio->masklength = LRADC_MAX_TOTAL_CHANS;
ret = iio_triggered_buffer_setup(iio, &iio_pollfunc_store_time,
&mxs_lradc_trigger_handler,