deleted file mode 100644
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-Texas Instruments TCAN4x5x CAN Controller
-================================================
-
-This file provides device node information for the TCAN4x5x interface contains.
-
-Required properties:
- - compatible:
- "ti,tcan4552", "ti,tcan4x5x"
- "ti,tcan4553", "ti,tcan4x5x" or
- "ti,tcan4x5x"
- - reg: 0
- - #address-cells: 1
- - #size-cells: 0
- - spi-max-frequency: Maximum frequency of the SPI bus the chip can
- operate at should be less than or equal to 18 MHz.
- - interrupt-parent: the phandle to the interrupt controller which provides
- the interrupt.
- - interrupts: interrupt specification for data-ready.
-
-See Documentation/devicetree/bindings/net/can/bosch,m_can.yaml for additional
-required property details.
-
-Optional properties:
- - reset-gpios: Hardwired output GPIO. If not defined then software
- reset.
- - device-state-gpios: Input GPIO that indicates if the device is in
- a sleep state or if the device is active. Not
- available with tcan4552/4553.
- - device-wake-gpios: Wake up GPIO to wake up the TCAN device. Not
- available with tcan4552/4553.
- - wakeup-source: Leave the chip running when suspended, and configure
- the RX interrupt to wake up the device.
-
-Example:
-tcan4x5x: tcan4x5x@0 {
- compatible = "ti,tcan4x5x";
- reg = <0>;
- #address-cells = <1>;
- #size-cells = <1>;
- spi-max-frequency = <10000000>;
- bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>;
- interrupt-parent = <&gpio1>;
- interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
- device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
- device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
- reset-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
- wakeup-source;
-};
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/can/ti,tcan4x5x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TCAN4x5x CAN Controller
+
+maintainers:
+ - Marc Kleine-Budde <mkl@pengutronix.de>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - ti,tcan4552
+ - ti,tcan4553
+ - const: ti,tcan4x5x
+ - const: ti,tcan4x5x
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+ description: The GPIO parent interrupt.
+
+ clocks:
+ maxItems: 1
+
+ reset-gpios:
+ description: Hardwired output GPIO. If not defined then software reset.
+ maxItems: 1
+
+ device-state-gpios:
+ description:
+ Input GPIO that indicates if the device is in a sleep state or if the
+ device is active. Not available with tcan4552/4553.
+ maxItems: 1
+
+ device-wake-gpios:
+ description:
+ Wake up GPIO to wake up the TCAN device.
+ Not available with tcan4552/4553.
+ maxItems: 1
+
+ bosch,mram-cfg:
+ description: |
+ Message RAM configuration data.
+ Multiple M_CAN instances can share the same Message RAM
+ and each element(e.g Rx FIFO or Tx Buffer and etc) number
+ in Message RAM is also configurable, so this property is
+ telling driver how the shared or private Message RAM are
+ used by this M_CAN controller.
+
+ The format should be as follows:
+ <offset sidf_elems xidf_elems rxf0_elems rxf1_elems rxb_elems txe_elems txb_elems>
+ The 'offset' is an address offset of the Message RAM where
+ the following elements start from. This is usually set to
+ 0x0 if you're using a private Message RAM. The remain cells
+ are used to specify how many elements are used for each FIFO/Buffer.
+
+ M_CAN includes the following elements according to user manual:
+ 11-bit Filter 0-128 elements / 0-128 words
+ 29-bit Filter 0-64 elements / 0-128 words
+ Rx FIFO 0 0-64 elements / 0-1152 words
+ Rx FIFO 1 0-64 elements / 0-1152 words
+ Rx Buffers 0-64 elements / 0-1152 words
+ Tx Event FIFO 0-32 elements / 0-64 words
+ Tx Buffers 0-32 elements / 0-576 words
+
+ Please refer to 2.4.1 Message RAM Configuration in Bosch
+ M_CAN user manual for details.
+ $ref: /schemas/types.yaml#/definitions/int32-array
+ items:
+ - description: The 'offset' is an address offset of the Message RAM where
+ the following elements start from. This is usually set to 0x0 if
+ you're using a private Message RAM.
+ default: 0
+ - description: 11-bit Filter 0-128 elements / 0-128 words
+ minimum: 0
+ maximum: 128
+ - description: 29-bit Filter 0-64 elements / 0-128 words
+ minimum: 0
+ maximum: 64
+ - description: Rx FIFO 0 0-64 elements / 0-1152 words
+ minimum: 0
+ maximum: 64
+ - description: Rx FIFO 1 0-64 elements / 0-1152 words
+ minimum: 0
+ maximum: 64
+ - description: Rx Buffers 0-64 elements / 0-1152 words
+ minimum: 0
+ maximum: 64
+ - description: Tx Event FIFO 0-32 elements / 0-64 words
+ minimum: 0
+ maximum: 32
+ - description: Tx Buffers 0-32 elements / 0-576 words
+ minimum: 0
+ maximum: 32
+ minItems: 1
+
+ spi-max-frequency:
+ description:
+ Must be half or less of "clocks" frequency.
+ maximum: 18000000
+
+ wakeup-source:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Enable CAN remote wakeup.
+
+allOf:
+ - $ref: can-controller.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,tcan4552
+ - ti,tcan4553
+ then:
+ properties:
+ device-state-gpios: false
+ device-wake-gpios: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - bosch,mram-cfg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ can@0 {
+ compatible = "ti,tcan4x5x";
+ reg = <0>;
+ clocks = <&can0_osc>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&can0_pins>;
+ spi-max-frequency = <10000000>;
+ bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
+ device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
+ device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
+ wakeup-source;
+ };
+ };
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ can@0 {
+ compatible = "ti,tcan4552", "ti,tcan4x5x";
+ reg = <0>;
+ clocks = <&can0_osc>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&can0_pins>;
+ spi-max-frequency = <10000000>;
+ bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
+ reset-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
+ wakeup-source;
+ };
+ };
Convert binding doc tcan4x5x.txt to yaml. Signed-off-by: Sean Nyekjaer <sean@geanix.com> --- Changes since rfc: - Tried to re-add ti,tcan4x5x wildcard - Removed xceiver and vdd supplies (copy paste error) - Corrected max SPI frequency - Copy pasted bosch,mram-cfg from bosch,m_can.yaml - device-state-gpios and device-wake-gpios only available for tcan4x5x Changes in v2: - Removed unneeded "|" - Reworked properties, compatible - Removed additionalProperties: false - Added unevaluatedProperties: false - Added missing space in examples - Link to v1: https://lore.kernel.org/r/20241104125342.1691516-1-sean@geanix.com --- .../devicetree/bindings/net/can/tcan4x5x.txt | 48 ------ .../devicetree/bindings/net/can/ti,tcan4x5x.yaml | 184 +++++++++++++++++++++ 2 files changed, 184 insertions(+), 48 deletions(-) --- base-commit: 2b2a9a08f8f0b904ea2bc61db3374421b0f944a6 change-id: 20241105-convert-tcan-4b516424ecf6 Best regards,