dt-bindings: can: convert tcan4x5x.txt to DT schema

Convert binding doc tcan4x5x.txt to yaml.

Added during conversion, required clock-names cclk.

Signed-off-by: Sean Nyekjaer <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>

Author: sknsean

Documentation/devicetree/bindings/net/can/tcan4x5x.txt

@@ -0,0 +1,191 @@
+# 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 <[email protected]>
+
+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
+
+  clock-names:
+    items:
+      - const: cclk
+
+  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
+  - clock-names
+  - 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>;
+            clock-names = "cclk";
+            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>;
+            clock-names = "cclk";
+            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;
+        };
+    };