diff options
Diffstat (limited to 'drivers/nfc')
| -rw-r--r-- | drivers/nfc/trf7970a.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/nfc/trf7970a.c b/drivers/nfc/trf7970a.c index cab302c..df63449 100644 --- a/drivers/nfc/trf7970a.c +++ b/drivers/nfc/trf7970a.c @@ -757,6 +757,11 @@ static int trf7970a_init(struct trf7970a *trf) if (ret) goto err_out; + /* Must clear NFC Target Detection Level reg due to erratum */ + ret = trf7970a_write(trf, TRF7970A_NFC_TARGET_LEVEL, 0); + if (ret) + goto err_out; + ret = trf7970a_write(trf, TRF7970A_MODULATOR_SYS_CLK_CTRL, TRF7970A_MODULATOR_DEPTH_OOK); if (ret) |