| Message ID | 20200114123329.3792-2-benjamin.gaignard@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Convert STM32 UART bindings to yaml | expand |
On Tue, Jan 14, 2020 at 01:33:28PM +0100, Benjamin Gaignard wrote: > Convert rs485 binding to yaml style file. > > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> > --- > Documentation/devicetree/bindings/serial/rs485.txt | 32 +-------------- > .../devicetree/bindings/serial/rs485.yaml | 45 ++++++++++++++++++++++ > 2 files changed, 46 insertions(+), 31 deletions(-) > create mode 100644 Documentation/devicetree/bindings/serial/rs485.yaml > > diff --git a/Documentation/devicetree/bindings/serial/rs485.txt b/Documentation/devicetree/bindings/serial/rs485.txt > index b92592dff6dd..a7fe93efc4a5 100644 > --- a/Documentation/devicetree/bindings/serial/rs485.txt > +++ b/Documentation/devicetree/bindings/serial/rs485.txt > @@ -1,31 +1 @@ > -* RS485 serial communications > - > -The RTS signal is capable of automatically controlling line direction for > -the built-in half-duplex mode. > -The properties described hereafter shall be given to a half-duplex capable > -UART node. > - > -Optional properties: > -- rs485-rts-delay: prop-encoded-array <a b> where: > - * a is the delay between rts signal and beginning of data sent in milliseconds. > - it corresponds to the delay before sending data. > - * b is the delay between end of data sent and rts signal in milliseconds > - it corresponds to the delay after sending data and actual release of the line. > - If this property is not specified, <0 0> is assumed. > -- rs485-rts-active-low: drive RTS low when sending (default is high). > -- linux,rs485-enabled-at-boot-time: empty property telling to enable the rs485 > - feature at boot time. It can be disabled later with proper ioctl. > -- rs485-rx-during-tx: empty property that enables the receiving of data even > - while sending data. > - > -RS485 example for Atmel USART: > - usart0: serial@fff8c000 { > - compatible = "atmel,at91sam9260-usart"; > - reg = <0xfff8c000 0x4000>; > - interrupts = <7>; > - atmel,use-dma-rx; > - atmel,use-dma-tx; > - linux,rs485-enabled-at-boot-time; > - rs485-rts-delay = <0 200>; // in milliseconds > - }; > - > +See rs485.yaml > diff --git a/Documentation/devicetree/bindings/serial/rs485.yaml b/Documentation/devicetree/bindings/serial/rs485.yaml > new file mode 100644 > index 000000000000..65c6a98969a8 > --- /dev/null > +++ b/Documentation/devicetree/bindings/serial/rs485.yaml > @@ -0,0 +1,45 @@ > +# SPDX-License-Identifier: GPL-2.0 > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/serial/rs485.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: RS485 serial communications Bindings > + > +description: The RTS signal is capable of automatically controlling > + line direction for the built-in half-duplex mode. > + The properties described hereafter shall be given to a > + half-duplex capable UART node. > + > +maintainers: > + - Rob Herring <robh@kernel.org> > + > +properties: > + rs485-rts-delay: > + description: prop-encoded-array <a b> > + allOf: > + - $ref: /schemas/types.yaml#/definitions/uint32-matrix > + - items: > + items: > + - description: > + Delay between rts signal and beginning of data sent in milliseconds. > + It corresponds to the delay before sending data. > + $ref: "/schemas/types.yaml#/definitions/uint32" This is not correct. The types only apply to whole properties. Is there a maximum? Seems like 1 sec would be more than anyone would ever want? > + default: 0 > + - description: > + Delay between end of data sent and rts signal in milliseconds. > + It corresponds to the delay after sending data and actual release of the line. > + $ref: "/schemas/types.yaml#/definitions/uint32" > + default: 0 > + > + rs485-rts-active-low: > + description: drive RTS low when sending (default is high). > + $ref: /schemas/types.yaml#/definitions/flag > + > + linux,rs485-enabled-at-boot-time: > + description: enables the rs485 feature at boot time. It can be disabled later with proper ioctl. > + $ref: /schemas/types.yaml#/definitions/flag > + > + rs485-rx-during-tx: > + description: enables the receiving of data even while sending data. > + $ref: /schemas/types.yaml#/definitions/flag > -- > 2.15.0 >
diff --git a/Documentation/devicetree/bindings/serial/rs485.txt b/Documentation/devicetree/bindings/serial/rs485.txt index b92592dff6dd..a7fe93efc4a5 100644 --- a/Documentation/devicetree/bindings/serial/rs485.txt +++ b/Documentation/devicetree/bindings/serial/rs485.txt @@ -1,31 +1 @@ -* RS485 serial communications - -The RTS signal is capable of automatically controlling line direction for -the built-in half-duplex mode. -The properties described hereafter shall be given to a half-duplex capable -UART node. - -Optional properties: -- rs485-rts-delay: prop-encoded-array <a b> where: - * a is the delay between rts signal and beginning of data sent in milliseconds. - it corresponds to the delay before sending data. - * b is the delay between end of data sent and rts signal in milliseconds - it corresponds to the delay after sending data and actual release of the line. - If this property is not specified, <0 0> is assumed. -- rs485-rts-active-low: drive RTS low when sending (default is high). -- linux,rs485-enabled-at-boot-time: empty property telling to enable the rs485 - feature at boot time. It can be disabled later with proper ioctl. -- rs485-rx-during-tx: empty property that enables the receiving of data even - while sending data. - -RS485 example for Atmel USART: - usart0: serial@fff8c000 { - compatible = "atmel,at91sam9260-usart"; - reg = <0xfff8c000 0x4000>; - interrupts = <7>; - atmel,use-dma-rx; - atmel,use-dma-tx; - linux,rs485-enabled-at-boot-time; - rs485-rts-delay = <0 200>; // in milliseconds - }; - +See rs485.yaml diff --git a/Documentation/devicetree/bindings/serial/rs485.yaml b/Documentation/devicetree/bindings/serial/rs485.yaml new file mode 100644 index 000000000000..65c6a98969a8 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/rs485.yaml @@ -0,0 +1,45 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/serial/rs485.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: RS485 serial communications Bindings + +description: The RTS signal is capable of automatically controlling + line direction for the built-in half-duplex mode. + The properties described hereafter shall be given to a + half-duplex capable UART node. + +maintainers: + - Rob Herring <robh@kernel.org> + +properties: + rs485-rts-delay: + description: prop-encoded-array <a b> + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-matrix + - items: + items: + - description: + Delay between rts signal and beginning of data sent in milliseconds. + It corresponds to the delay before sending data. + $ref: "/schemas/types.yaml#/definitions/uint32" + default: 0 + - description: + Delay between end of data sent and rts signal in milliseconds. + It corresponds to the delay after sending data and actual release of the line. + $ref: "/schemas/types.yaml#/definitions/uint32" + default: 0 + + rs485-rts-active-low: + description: drive RTS low when sending (default is high). + $ref: /schemas/types.yaml#/definitions/flag + + linux,rs485-enabled-at-boot-time: + description: enables the rs485 feature at boot time. It can be disabled later with proper ioctl. + $ref: /schemas/types.yaml#/definitions/flag + + rs485-rx-during-tx: + description: enables the receiving of data even while sending data. + $ref: /schemas/types.yaml#/definitions/flag
Convert rs485 binding to yaml style file. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> --- Documentation/devicetree/bindings/serial/rs485.txt | 32 +-------------- .../devicetree/bindings/serial/rs485.yaml | 45 ++++++++++++++++++++++ 2 files changed, 46 insertions(+), 31 deletions(-) create mode 100644 Documentation/devicetree/bindings/serial/rs485.yaml