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>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 3ed94bf80596..b3ba8af4f261 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -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);