| Message ID | 1591235731-15673-3-git-send-email-Anson.Huang@nxp.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Convert mxs/imx spi/cspi/lpspi binding to json-schema | expand |
On Thu, Jun 04, 2020 at 09:55:30AM +0800, Anson Huang wrote: > Convert the i.MX CSPI binding to DT schema format using json-schema, > update compatible, remove obsolete properties "fsl,spi-num-chipselects" > and update the example based on latest DT file. > > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> > --- > Changes since V1: > - add "unevaluatedProperties: false". > --- > .../devicetree/bindings/spi/fsl-imx-cspi.txt | 56 ------------ > .../devicetree/bindings/spi/fsl-imx-cspi.yaml | 99 ++++++++++++++++++++++ > 2 files changed, 99 insertions(+), 56 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt > create mode 100644 Documentation/devicetree/bindings/spi/fsl-imx-cspi.yaml > > diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt > deleted file mode 100644 > index 33bc58f..0000000 > --- a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt > +++ /dev/null > @@ -1,56 +0,0 @@ > -* Freescale (Enhanced) Configurable Serial Peripheral Interface > - (CSPI/eCSPI) for i.MX > - > -Required properties: > -- compatible : > - - "fsl,imx1-cspi" for SPI compatible with the one integrated on i.MX1 > - - "fsl,imx21-cspi" for SPI compatible with the one integrated on i.MX21 > - - "fsl,imx27-cspi" for SPI compatible with the one integrated on i.MX27 > - - "fsl,imx31-cspi" for SPI compatible with the one integrated on i.MX31 > - - "fsl,imx35-cspi" for SPI compatible with the one integrated on i.MX35 > - - "fsl,imx51-ecspi" for SPI compatible with the one integrated on i.MX51 > - - "fsl,imx53-ecspi" for SPI compatible with the one integrated on i.MX53 and later Soc > - - "fsl,imx8mq-ecspi" for SPI compatible with the one integrated on i.MX8MQ > - - "fsl,imx8mm-ecspi" for SPI compatible with the one integrated on i.MX8MM > - - "fsl,imx8mn-ecspi" for SPI compatible with the one integrated on i.MX8MN > - - "fsl,imx8mp-ecspi" for SPI compatible with the one integrated on i.MX8MP > -- reg : Offset and length of the register set for the device > -- interrupts : Should contain CSPI/eCSPI interrupt > -- clocks : Clock specifiers for both ipg and per clocks. > -- clock-names : Clock names should include both "ipg" and "per" > -See the clock consumer binding, > - Documentation/devicetree/bindings/clock/clock-bindings.txt > - > -Recommended properties: > -- cs-gpios : GPIOs to use as chip selects, see spi-bus.txt. While the native chip > -select lines can be used, they appear to always generate a pulse between each > -word of a transfer. Most use cases will require GPIO based chip selects to > -generate a valid transaction. > - > -Optional properties: > -- num-cs : Number of total chip selects, see spi-bus.txt. > -- dmas: DMA specifiers for tx and rx dma. See the DMA client binding, > -Documentation/devicetree/bindings/dma/dma.txt. > -- dma-names: DMA request names, if present, should include "tx" and "rx". > -- fsl,spi-rdy-drctl: Integer, representing the value of DRCTL, the register > -controlling the SPI_READY handling. Note that to enable the DRCTL consideration, > -the SPI_READY mode-flag needs to be set too. > -Valid values are: 0 (disabled), 1 (edge-triggered burst) and 2 (level-triggered burst). > - > -Obsolete properties: > -- fsl,spi-num-chipselects : Contains the number of the chipselect > - > -Example: > - > -ecspi@70010000 { > - #address-cells = <1>; > - #size-cells = <0>; > - compatible = "fsl,imx51-ecspi"; > - reg = <0x70010000 0x4000>; > - interrupts = <36>; > - cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */ > - <&gpio3 25 0>; /* GPIO3_25 */ > - dmas = <&sdma 3 7 1>, <&sdma 4 7 2>; > - dma-names = "rx", "tx"; > - fsl,spi-rdy-drctl = <1>; > -}; > diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.yaml b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.yaml > new file mode 100644 > index 0000000..606af7d > --- /dev/null > +++ b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.yaml > @@ -0,0 +1,99 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/spi/fsl-imx-cspi.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Freescale (Enhanced) Configurable Serial Peripheral Interface (CSPI/eCSPI) for i.MX > + > +maintainers: > + - Shawn Guo <shawn.guo@linaro.org> > + > +allOf: > + - $ref: "/schemas/spi/spi-controller.yaml#" > + > +properties: > + compatible: > + oneOf: > + - const: fsl,imx1-cspi > + - const: fsl,imx21-cspi > + - const: fsl,imx27-cspi > + - const: fsl,imx31-cspi > + - const: fsl,imx35-cspi > + - const: fsl,imx51-ecspi > + - const: fsl,imx53-ecspi > + - items: > + - enum: > + - fsl,imx50-ecspi > + - fsl,imx6q-ecspi > + - fsl,imx6sx-ecspi > + - fsl,imx6sl-ecspi > + - fsl,imx6sll-ecspi > + - fsl,imx6ul-ecspi > + - fsl,imx7d-ecspi > + - fsl,imx8mq-ecspi > + - fsl,imx8mm-ecspi > + - fsl,imx8mn-ecspi > + - fsl,imx8mp-ecspi > + - const: fsl,imx51-ecspi > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + clocks: > + items: > + - description: SoC SPI ipg clock > + - description: SoC SPI per clock > + maxItems: 2 Can drop 'maxItems', it is redundant here. > + > + clock-names: > + items: > + - const: ipg > + - const: per > + maxItems: 2 And here. > + > + dmas: > + items: > + - description: DMA controller phandle and request line for RX > + - description: DMA controller phandle and request line for TX > + > + dma-names: > + items: > + - const: rx > + - const: tx > + > + fsl,spi-rdy-drctl: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Integer, representing the value of DRCTL, the register controlling > + the SPI_READY handling. Note that to enable the DRCTL consideration, > + the SPI_READY mode-flag needs to be set too. > + Valid values are: 0 (disabled), 1 (edge-triggered burst) and 2 (level-triggered burst). > + enum: [0, 1, 2] > + > +required: > + - compatible > + - reg > + - interrupts > + - clocks > + - clock-names > + > +unevaluatedProperties: false > + > +examples: > + - | > + #include <dt-bindings/clock/imx5-clock.h> > + > + spi@70010000 { > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "fsl,imx51-ecspi"; > + reg = <0x70010000 0x4000>; > + interrupts = <36>; > + clocks = <&clks IMX5_CLK_ECSPI1_IPG_GATE>, > + <&clks IMX5_CLK_ECSPI1_PER_GATE>; > + clock-names = "ipg", "per"; > + }; > -- > 2.7.4 >
diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt deleted file mode 100644 index 33bc58f..0000000 --- a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt +++ /dev/null @@ -1,56 +0,0 @@ -* Freescale (Enhanced) Configurable Serial Peripheral Interface - (CSPI/eCSPI) for i.MX - -Required properties: -- compatible : - - "fsl,imx1-cspi" for SPI compatible with the one integrated on i.MX1 - - "fsl,imx21-cspi" for SPI compatible with the one integrated on i.MX21 - - "fsl,imx27-cspi" for SPI compatible with the one integrated on i.MX27 - - "fsl,imx31-cspi" for SPI compatible with the one integrated on i.MX31 - - "fsl,imx35-cspi" for SPI compatible with the one integrated on i.MX35 - - "fsl,imx51-ecspi" for SPI compatible with the one integrated on i.MX51 - - "fsl,imx53-ecspi" for SPI compatible with the one integrated on i.MX53 and later Soc - - "fsl,imx8mq-ecspi" for SPI compatible with the one integrated on i.MX8MQ - - "fsl,imx8mm-ecspi" for SPI compatible with the one integrated on i.MX8MM - - "fsl,imx8mn-ecspi" for SPI compatible with the one integrated on i.MX8MN - - "fsl,imx8mp-ecspi" for SPI compatible with the one integrated on i.MX8MP -- reg : Offset and length of the register set for the device -- interrupts : Should contain CSPI/eCSPI interrupt -- clocks : Clock specifiers for both ipg and per clocks. -- clock-names : Clock names should include both "ipg" and "per" -See the clock consumer binding, - Documentation/devicetree/bindings/clock/clock-bindings.txt - -Recommended properties: -- cs-gpios : GPIOs to use as chip selects, see spi-bus.txt. While the native chip -select lines can be used, they appear to always generate a pulse between each -word of a transfer. Most use cases will require GPIO based chip selects to -generate a valid transaction. - -Optional properties: -- num-cs : Number of total chip selects, see spi-bus.txt. -- dmas: DMA specifiers for tx and rx dma. See the DMA client binding, -Documentation/devicetree/bindings/dma/dma.txt. -- dma-names: DMA request names, if present, should include "tx" and "rx". -- fsl,spi-rdy-drctl: Integer, representing the value of DRCTL, the register -controlling the SPI_READY handling. Note that to enable the DRCTL consideration, -the SPI_READY mode-flag needs to be set too. -Valid values are: 0 (disabled), 1 (edge-triggered burst) and 2 (level-triggered burst). - -Obsolete properties: -- fsl,spi-num-chipselects : Contains the number of the chipselect - -Example: - -ecspi@70010000 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "fsl,imx51-ecspi"; - reg = <0x70010000 0x4000>; - interrupts = <36>; - cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */ - <&gpio3 25 0>; /* GPIO3_25 */ - dmas = <&sdma 3 7 1>, <&sdma 4 7 2>; - dma-names = "rx", "tx"; - fsl,spi-rdy-drctl = <1>; -}; diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.yaml b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.yaml new file mode 100644 index 0000000..606af7d --- /dev/null +++ b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.yaml @@ -0,0 +1,99 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/fsl-imx-cspi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale (Enhanced) Configurable Serial Peripheral Interface (CSPI/eCSPI) for i.MX + +maintainers: + - Shawn Guo <shawn.guo@linaro.org> + +allOf: + - $ref: "/schemas/spi/spi-controller.yaml#" + +properties: + compatible: + oneOf: + - const: fsl,imx1-cspi + - const: fsl,imx21-cspi + - const: fsl,imx27-cspi + - const: fsl,imx31-cspi + - const: fsl,imx35-cspi + - const: fsl,imx51-ecspi + - const: fsl,imx53-ecspi + - items: + - enum: + - fsl,imx50-ecspi + - fsl,imx6q-ecspi + - fsl,imx6sx-ecspi + - fsl,imx6sl-ecspi + - fsl,imx6sll-ecspi + - fsl,imx6ul-ecspi + - fsl,imx7d-ecspi + - fsl,imx8mq-ecspi + - fsl,imx8mm-ecspi + - fsl,imx8mn-ecspi + - fsl,imx8mp-ecspi + - const: fsl,imx51-ecspi + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: SoC SPI ipg clock + - description: SoC SPI per clock + maxItems: 2 + + clock-names: + items: + - const: ipg + - const: per + maxItems: 2 + + dmas: + items: + - description: DMA controller phandle and request line for RX + - description: DMA controller phandle and request line for TX + + dma-names: + items: + - const: rx + - const: tx + + fsl,spi-rdy-drctl: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Integer, representing the value of DRCTL, the register controlling + the SPI_READY handling. Note that to enable the DRCTL consideration, + the SPI_READY mode-flag needs to be set too. + Valid values are: 0 (disabled), 1 (edge-triggered burst) and 2 (level-triggered burst). + enum: [0, 1, 2] + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/imx5-clock.h> + + spi@70010000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,imx51-ecspi"; + reg = <0x70010000 0x4000>; + interrupts = <36>; + clocks = <&clks IMX5_CLK_ECSPI1_IPG_GATE>, + <&clks IMX5_CLK_ECSPI1_PER_GATE>; + clock-names = "ipg", "per"; + };
Convert the i.MX CSPI binding to DT schema format using json-schema, update compatible, remove obsolete properties "fsl,spi-num-chipselects" and update the example based on latest DT file. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> --- Changes since V1: - add "unevaluatedProperties: false". --- .../devicetree/bindings/spi/fsl-imx-cspi.txt | 56 ------------ .../devicetree/bindings/spi/fsl-imx-cspi.yaml | 99 ++++++++++++++++++++++ 2 files changed, 99 insertions(+), 56 deletions(-) delete mode 100644 Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt create mode 100644 Documentation/devicetree/bindings/spi/fsl-imx-cspi.yaml