From 58d46f538b602d4a93fbae945e5c844a90c01f14 Mon Sep 17 00:00:00 2001 From: Geoff Lansberry Date: Mon, 18 Apr 2016 15:48:39 -0400 Subject: NFC: trf7970a: add TI recommended write of zero to Register 0x18 Signed-off-by: Geoff Lansberry Signed-off-by: Samuel Ortiz --- drivers/nfc/trf7970a.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/nfc/trf7970a.c') diff --git a/drivers/nfc/trf7970a.c b/drivers/nfc/trf7970a.c index 10842b7051b3..26c9dbbccb0c 100644 --- a/drivers/nfc/trf7970a.c +++ b/drivers/nfc/trf7970a.c @@ -1048,6 +1048,10 @@ static int trf7970a_init(struct trf7970a *trf) if (ret) goto err_out; + ret = trf7970a_write(trf, TRF7970A_NFC_TARGET_LEVEL, 0); + if (ret) + goto err_out; + usleep_range(1000, 2000); trf->chip_status_ctrl &= ~TRF7970A_CHIP_STATUS_RF_ON; -- cgit v1.2.3