diff options
Diffstat (limited to 'drivers/nfc/trf7970a.c')
| -rw-r--r-- | drivers/nfc/trf7970a.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/nfc/trf7970a.c b/drivers/nfc/trf7970a.c index e4671e54424a..429146b7e6d8 100644 --- a/drivers/nfc/trf7970a.c +++ b/drivers/nfc/trf7970a.c @@ -859,6 +859,10 @@ err_out: static void trf7970a_switch_rf_off(struct trf7970a *trf) { + if ((trf->state == TRF7970A_ST_PWR_OFF) || + (trf->state == TRF7970A_ST_RF_OFF)) + return; + dev_dbg(trf->dev, "Switching rf off\n"); trf->chip_status_ctrl &= ~TRF7970A_CHIP_STATUS_RF_ON; |