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 /Documentation/devicetree/bindings/net/nfc | |
| parent | r8169: set tc_offset only if tally counter reset isn't supported (diff) | |
| download | linux-dev-59f96cf6ba88c64278c35d11957a36faaca33de7.tar.xz linux-dev-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 'Documentation/devicetree/bindings/net/nfc')
| -rw-r--r-- | Documentation/devicetree/bindings/net/nfc/nxp-nci.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/net/nfc/nxp-nci.txt b/Documentation/devicetree/bindings/net/nfc/nxp-nci.txt index cfaf88998918..cb2385c277d0 100644 --- a/Documentation/devicetree/bindings/net/nfc/nxp-nci.txt +++ b/Documentation/devicetree/bindings/net/nfc/nxp-nci.txt @@ -6,11 +6,11 @@ Required properties: - reg: address on the bus - interrupts: GPIO interrupt to which the chip is connected - enable-gpios: Output GPIO pin used for enabling/disabling the chip -- firmware-gpios: Output GPIO pin used to enter firmware download mode Optional SoC Specific Properties: - pinctrl-names: Contains only one value - "default". - pintctrl-0: Specifies the pin control groups used for this controller. +- firmware-gpios: Output GPIO pin used to enter firmware download mode Example (for ARM-based BeagleBone with NPC100 NFC controller on I2C2): |