Re: [PATCH v4 net-next 1/4] dt-bindings: net: nfc: s3fwrn5: Support a UART interface
From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2020-12-01 20:08:16
Also in:
linux-devicetree, lkml, oe-linux-nfc
On Tue, Dec 01, 2020 at 10:50:25PM +0900, Bongsu Jeon wrote:
quoted hunk ↗ jump to hunk
From: Bongsu Jeon <bongsu.jeon@samsung.com> Since S3FWRN82 NFC Chip, The UART interface can be used. S3FWRN82 supports I2C and UART interface. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> --- .../bindings/net/nfc/samsung,s3fwrn5.yaml | 32 ++++++++++++++++++++-- 1 file changed, 29 insertions(+), 3 deletions(-)diff --git a/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml b/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml index cb0b8a5..cc5f9a1 100644 --- a/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml +++ b/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml@@ -12,7 +12,10 @@ maintainers: properties: compatible: - const: samsung,s3fwrn5-i2c + items:
This still has items but it should be a simple enum.
quoted hunk ↗ jump to hunk
+ - enum: + - samsung,s3fwrn5-i2c + - samsung,s3fwrn82 en-gpios: maxItems: 1@@ -47,10 +50,19 @@ 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 +83,17 @@ examples: wake-gpios = <&gpj0 2 GPIO_ACTIVE_HIGH>; }; }; + # UART example on Raspberry Pi + - | + uart0 { + status = "okay"; + + nfc { + compatible = "samsung,s3fwrn82"; + + en-gpios = <&gpio 20 0>; + wake-gpios = <&gpio 16 0>;
Use GPIO flags like in example above. Best regards, Krzysztof