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Message-ID: <20241104085616.469862-1-sean@geanix.com>
Date: Mon, 4 Nov 2024 09:56:15 +0100
From: Sean Nyekjaer <sean@...nix.com>
To: Marc Kleine-Budde <mkl@...gutronix.de>,
Vincent Mailhol <mailhol.vincent@...adoo.fr>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: Sean Nyekjaer <sean@...nix.com>,
linux-can@...r.kernel.org,
netdev@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [RFC PATCH] dt-bindings: can: convert tcan4x5x.txt to DT schema
Convert binding doc tcan4x5x.txt to yaml.
Signed-off-by: Sean Nyekjaer <sean@...nix.com>
---
Can we somehow reference bosch,mram-cfg from the bosch,m_can.yaml?
I have searched for yaml files that tries the same, but it's usually
includes a whole node.
I have also tried:
$ref: /schema/bosch,m_can.yaml#/properties/bosch,mram-cfg
Any hints to share a property?
.../devicetree/bindings/net/can/tcan4x5x.txt | 48 ---------
.../bindings/net/can/ti,tcan4x5x.yaml | 97 +++++++++++++++++++
2 files changed, 97 insertions(+), 48 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/net/can/tcan4x5x.txt
create mode 100644 Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml
diff --git a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
deleted file mode 100644
index 20c0572c9853..000000000000
--- a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-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;
-};
diff --git a/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml b/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml
new file mode 100644
index 000000000000..62c108fac6b3
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/can/ti,tcan4x5x.yaml
@@ -0,0 +1,97 @@
+# 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@...gutronix.de>
+
+allOf:
+ - $ref: can-controller.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - ti,tcan4552
+ - ti,tcan4553
+ - ti,tcan4x5x
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ vdd-supply:
+ description: Regulator that powers the CAN controller.
+
+ xceiver-supply:
+ description: Regulator that powers the CAN transceiver.
+
+ 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:
+ $ref: bosch,m_can.yaml#
+
+ spi-max-frequency:
+ description:
+ Must be half or less of "clocks" frequency.
+ maximum: 10000000
+
+ wakeup-source:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Enable CAN remote wakeup.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - bosch,mram-cfg
+
+additionalProperties: 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;
+ };
+ };
--
2.46.2
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