diff options
Diffstat (limited to 'drivers/nfc/st-nci/spi.c')
| -rw-r--r-- | drivers/nfc/st-nci/spi.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/nfc/st-nci/spi.c b/drivers/nfc/st-nci/spi.c index 8897203..bf6643c 100644 --- a/drivers/nfc/st-nci/spi.c +++ b/drivers/nfc/st-nci/spi.c @@ -51,6 +51,8 @@ struct st_nci_spi_phy { struct spi_device *spi_dev; struct llt_ndlc *ndlc; + bool irq_active; + unsigned int gpio_reset; unsigned int irq_polarity; @@ -73,8 +75,10 @@ static int st_nci_spi_enable(void *phy_id) gpio_set_value(phy->gpio_reset, 1); usleep_range(80000, 85000); - if (phy->ndlc->powered == 0) + if (phy->ndlc->powered == 0 && phy->irq_active == 0) { enable_irq(phy->spi_dev->irq); + phy->irq_active = true; + } return 0; } @@ -84,6 +88,7 @@ static void st_nci_spi_disable(void *phy_id) struct st_nci_spi_phy *phy = phy_id; disable_irq_nosync(phy->spi_dev->irq); + phy->irq_active = false; } /* @@ -358,6 +363,7 @@ static int st_nci_spi_probe(struct spi_device *dev) return r; } + phy->irq_active = true; r = devm_request_threaded_irq(&dev->dev, dev->irq, NULL, st_nci_irq_thread_fn, phy->irq_polarity | IRQF_ONESHOT, |