diff options
| author | Frieder Schrempf <frieder.schrempf@kontron.de> | 2020-12-01 12:39:09 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-12-02 11:58:19 -0800 |
| commit | 59f96cf6ba88c64278c35d11957a36faaca33de7 (patch) | |
| tree | e17d40911240a8c523f2b89b69720a8430f18fd3 /drivers/nfc | |
| parent | 6b4f503186b73e3da24c6716c8c7ea903e6b74d4 (diff) | |
| download | lwn-59f96cf6ba88c64278c35d11957a36faaca33de7.tar.gz lwn-59f96cf6ba88c64278c35d11957a36faaca33de7.zip | |
NFC: nxp-nci: Make firmware GPIO pin optional
There are other NXP NCI compatible NFC controllers such as the PN7150
that use an integrated firmware and therefore do not have a GPIO to
select firmware downloading mode. To support this kind of controller,
let's make the firmware GPIO optional.
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20201201113921.6572-1-frieder.schrempf@kontron.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/nfc')
| -rw-r--r-- | drivers/nfc/nxp-nci/i2c.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nfc/nxp-nci/i2c.c b/drivers/nfc/nxp-nci/i2c.c index 9f60e4dc5a90..7e451c10985d 100644 --- a/drivers/nfc/nxp-nci/i2c.c +++ b/drivers/nfc/nxp-nci/i2c.c @@ -286,7 +286,7 @@ static int nxp_nci_i2c_probe(struct i2c_client *client, return PTR_ERR(phy->gpiod_en); } - phy->gpiod_fw = devm_gpiod_get(dev, "firmware", GPIOD_OUT_LOW); + phy->gpiod_fw = devm_gpiod_get_optional(dev, "firmware", GPIOD_OUT_LOW); if (IS_ERR(phy->gpiod_fw)) { nfc_err(dev, "Failed to get FW gpio\n"); return PTR_ERR(phy->gpiod_fw); |