From 7149d6bfecadc255e9d964782a9fdd70f610f1ea Mon Sep 17 00:00:00 2001 From: "Mark A. Greer" Date: Tue, 2 Sep 2014 15:12:41 -0700 Subject: NFC: trf7970a: trf7970a_init() turns off the RF transmitter When trf7970a_init() initializes the trf7970a it implicitly turns off the RF transmitter. Track this by clearing the TRF7970A_CHIP_STATUS_RF_ON bit in the cached trf->chip_status_ctrl. Signed-off-by: Mark A. Greer Signed-off-by: Samuel Ortiz --- drivers/nfc/trf7970a.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/nfc') diff --git a/drivers/nfc/trf7970a.c b/drivers/nfc/trf7970a.c index 429146b7e6d8..ab6e276be6a6 100644 --- a/drivers/nfc/trf7970a.c +++ b/drivers/nfc/trf7970a.c @@ -826,6 +826,8 @@ static int trf7970a_init(struct trf7970a *trf) usleep_range(1000, 2000); + trf->chip_status_ctrl &= ~TRF7970A_CHIP_STATUS_RF_ON; + ret = trf7970a_write(trf, TRF7970A_MODULATOR_SYS_CLK_CTRL, 0); if (ret) goto err_out; -- cgit v1.2.3