Commit cfc708db authored by Mark A. Greer's avatar Mark A. Greer Committed by Samuel Ortiz
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NFC: trf7970a: Don't turn off RF if its already off 



Don't try to turn off of RF transmitter is its
already off.

Signed-off-by: default avatarMark A. Greer <mgreer@animalcreek.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 307e5caf

drivers/nfc/trf7970a.c

+4 −0
Original line number Diff line number Diff line
@@ -859,6 +859,10 @@ static int trf7970a_init(struct trf7970a *trf) 


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;