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authorFrieder Schrempf <frieder.schrempf@kontron.de>2020-12-01 12:39:09 +0100
committerJakub Kicinski <kuba@kernel.org>2020-12-02 20:58:19 +0100
commit59f96cf6ba88c64278c35d11957a36faaca33de7 (patch)
treee17d40911240a8c523f2b89b69720a8430f18fd3 /drivers/nfc
parentr8169: set tc_offset only if tally counter reset isn't supported (diff)
downloadlinux-59f96cf6ba88c64278c35d11957a36faaca33de7.tar.xz
linux-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.c2
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);