Since S3FWRN82 NFC Chip, The UART interface can be used.
S3FWRN82 supports I2C and UART interface.
Signed-off-by: Bongsu Jeon <bongsu.jeon@xxxxxxxxxxx>
---
.../bindings/net/nfc/samsung,s3fwrn5.yaml | 28 +++++++++++++++++--
1 file changed, 26 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml b/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml
index cb0b8a560282..37b3e5ae5681 100644
--- a/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml
+++ b/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml
@@ -13,6 +13,7 @@ maintainers:
properties:
compatible:
const: samsung,s3fwrn5-i2c
+ const: samsung,s3fwrn82-uart
en-gpios:
maxItems: 1
@@ -47,10 +48,19 @@ additionalProperties: false
required:
- compatible
- en-gpios
- - interrupts
- - reg
- wake-gpios
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,s3fwrn5-i2c
+ then:
+ required:
+ - interrupts
+ - reg
+
examples:
- |
#include <dt-bindings/gpio/gpio.h>
@@ -71,3 +81,17 @@ examples:
wake-gpios = <&gpj0 2 GPIO_ACTIVE_HIGH>;
};
};
+ # UART example on Raspberry Pi
+ - |
+ &uart0 {
+ status = "okay";
+
+ s3fwrn82_uart {
+ compatible = "samsung,s3fwrn82-uart";
+
+ en-gpios = <&gpio 20 0>;
+ wake-gpios = <&gpio 16 0>;
+
+ status = "okay";
+ };
+ };
--
2.17.1
