On Mon, Jul 26, 2021 at 03:15:26PM +0200, Dario Binacchi wrote: > Convert the Bosch C_CAN/D_CAN controller device tree binding > documentation to json-schema. > > Document missing properties. > Remove "ti,hwmods" as it is no longer used in TI dts. > Make "clocks" required as it is used in all dts. > Correct nodename in the example. > > Signed-off-by: Dario Binacchi <dariobin@xxxxxxxxx> > > --- > > Changes in v2: > - Drop Documentation references > > .../bindings/net/can/bosch,c_can.yaml | 83 +++++++++++++++++++ > .../devicetree/bindings/net/can/c_can.txt | 65 --------------- > 2 files changed, 83 insertions(+), 65 deletions(-) > create mode 100644 Documentation/devicetree/bindings/net/can/bosch,c_can.yaml > delete mode 100644 Documentation/devicetree/bindings/net/can/c_can.txt > > diff --git a/Documentation/devicetree/bindings/net/can/bosch,c_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,c_can.yaml > new file mode 100644 > index 000000000000..f937c37e9199 > --- /dev/null > +++ b/Documentation/devicetree/bindings/net/can/bosch,c_can.yaml > @@ -0,0 +1,83 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/net/can/bosch,c_can.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Bosch C_CAN/D_CAN controller Device Tree Bindings > + > +description: Bosch C_CAN/D_CAN controller for CAN bus > + > +maintainers: > + - Dario Binacchi <dariobin@xxxxxxxxx> > + > +allOf: > + - $ref: can-controller.yaml# > + > +properties: > + compatible: > + oneOf: > + - enum: > + - bosch,c_can > + - bosch,d_can > + - ti,dra7-d_can > + - ti,am3352-d_can > + - items: > + - enum: > + - ti,am4372-d_can > + - const: ti,am3352-d_can > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + power-domains: > + description: | > + Should contain a phandle to a PM domain provider node and an args > + specifier containing the DCAN device id value. It's mandatory for > + Keystone 2 66AK2G SoCs only. > + maxItems: 1 > + > + clocks: > + description: | > + CAN functional clock phandle. > + maxItems: 1 > + > + clock-names: > + maxItems: 1 > + > + syscon-raminit: Needs a type (phandle-array) and size (maxItems: 2) > + description: | > + Handle to system control region that contains the RAMINIT register, > + register offset to the RAMINIT register and the CAN instance number (0 > + offset). > + > +required: > + - compatible > + - reg > + - interrupts > + - clocks > + > +additionalProperties: false > + > +examples: > + - | > + can@481d0000 { > + compatible = "bosch,d_can"; > + reg = <0x481d0000 0x2000>; > + interrupts = <55>; > + interrupt-parent = <&intc>; > + status = "disabled"; > + }; > + - | > + can@0 { > + compatible = "ti,am3352-d_can"; > + reg = <0x0 0x2000>; > + clocks = <&dcan1_fck>; > + clock-names = "fck"; > + syscon-raminit = <&scm_conf 0x644 1>; > + interrupts = <55>; > + status = "disabled"; > + }; > diff --git a/Documentation/devicetree/bindings/net/can/c_can.txt b/Documentation/devicetree/bindings/net/can/c_can.txt > deleted file mode 100644 > index 366479806acb..000000000000 > --- a/Documentation/devicetree/bindings/net/can/c_can.txt > +++ /dev/null > @@ -1,65 +0,0 @@ > -Bosch C_CAN/D_CAN controller Device Tree Bindings > -------------------------------------------------- > - > -Required properties: > -- compatible : Should be "bosch,c_can" for C_CAN controllers and > - "bosch,d_can" for D_CAN controllers. > - Can be "ti,dra7-d_can", "ti,am3352-d_can" or > - "ti,am4372-d_can". > -- reg : physical base address and size of the C_CAN/D_CAN > - registers map > -- interrupts : property with a value describing the interrupt > - number > - > -The following are mandatory properties for DRA7x, AM33xx and AM43xx SoCs only: > -- ti,hwmods : Must be "d_can<n>" or "c_can<n>", n being the > - instance number > - > -The following are mandatory properties for Keystone 2 66AK2G SoCs only: > -- power-domains : Should contain a phandle to a PM domain provider node > - and an args specifier containing the DCAN device id > - value. This property is as per the binding, > - Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml > -- clocks : CAN functional clock phandle. This property is as per the > - binding, > - Documentation/devicetree/bindings/clock/ti,sci-clk.yaml > - > -Optional properties: > -- syscon-raminit : Handle to system control region that contains the > - RAMINIT register, register offset to the RAMINIT > - register and the CAN instance number (0 offset). > - > -Note: "ti,hwmods" field is used to fetch the base address and irq > -resources from TI, omap hwmod data base during device registration. > -Future plan is to migrate hwmod data base contents into device tree > -blob so that, all the required data will be used from device tree dts > -file. > - > -Example: > - > -Step1: SoC common .dtsi file > - > - dcan1: d_can@481d0000 { > - compatible = "bosch,d_can"; > - reg = <0x481d0000 0x2000>; > - interrupts = <55>; > - interrupt-parent = <&intc>; > - status = "disabled"; > - }; > - > -(or) > - > - dcan1: d_can@481d0000 { > - compatible = "bosch,d_can"; > - ti,hwmods = "d_can1"; > - reg = <0x481d0000 0x2000>; > - interrupts = <55>; > - interrupt-parent = <&intc>; > - status = "disabled"; > - }; > - > -Step 2: board specific .dts file > - > - &dcan1 { > - status = "okay"; > - }; > -- > 2.17.1 > >
