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iio: remove useless irq_enabled variable in at91 

irq_enabled is only set, but never read

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Peter Meerwald 2012-10-13 09:06:00 +01:00 committed by Jonathan Cameron
parent 73327b4c80
commit e1562ef304
1 changed files with 0 additions and 3 deletions
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3
drivers/iio/adc/at91_adc.c
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@ -46,7 +46,6 @@ struct at91_adc_state {
struct clk *clk;
bool done;
int irq;
bool irq_enabled;
u16 last_value;
struct mutex lock;
u8 num_channels;
@ -85,7 +84,6 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
buffer->access->store_to(buffer, (u8 *)st->buffer);
iio_trigger_notify_done(idev->trig);
st->irq_enabled = true;
/* Needed to ACK the DRDY interruption */
at91_adc_readl(st, AT91_ADC_LCDR);
@ -106,7 +104,6 @@ static irqreturn_t at91_adc_eoc_trigger(int irq, void *private)
if (iio_buffer_enabled(idev)) {
disable_irq_nosync(irq);
st->irq_enabled = false;
iio_trigger_poll(idev->trig, iio_get_time_ns());
} else {
st->last_value = at91_adc_readl(st, AT91_ADC_LCDR);