dt-bindings: net: convert sff,sfp to dtschema

Convert the sff,sfp.txt bindings to the DT schema format.
Also add the new path to the list of maintained files.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/devicetree/bindings/net/sff,sfp.txt

-Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP)
-Transceiver
-
-Required properties:
-
-- compatible : must be one of
-  "sff,sfp" for SFP modules
-  "sff,sff" for soldered down SFF modules
-
-- i2c-bus : phandle of an I2C bus controller for the SFP two wire serial
-  interface
-
-Optional Properties:
-
-- mod-def0-gpios : GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS)
-  module presence input gpio signal, active (module absent) high. Must
-  not be present for SFF modules
-
-- los-gpios : GPIO phandle and a specifier of the Receiver Loss of Signal
-  Indication input gpio signal, active (signal lost) high
-
-- tx-fault-gpios : GPIO phandle and a specifier of the Module Transmitter
-  Fault input gpio signal, active (fault condition) high
-
-- tx-disable-gpios : GPIO phandle and a specifier of the Transmitter Disable
-  output gpio signal, active (Tx disable) high
-
-- rate-select0-gpios : GPIO phandle and a specifier of the Rx Signaling Rate
-  Select (AKA RS0) output gpio signal, low: low Rx rate, high: high Rx rate
-  Must not be present for SFF modules
-
-- rate-select1-gpios : GPIO phandle and a specifier of the Tx Signaling Rate
-  Select (AKA RS1) output gpio signal (SFP+ only), low: low Tx rate, high:
-  high Tx rate. Must not be present for SFF modules
-
-- maximum-power-milliwatt : Maximum module power consumption
-  Specifies the maximum power consumption allowable by a module in the
-  slot, in milli-Watts.  Presently, modules can be up to 1W, 1.5W or 2W.
-
-Example #1: Direct serdes to SFP connection
-
-sfp_eth3: sfp-eth3 {
-	compatible = "sff,sfp";
-	i2c-bus = <&sfp_1g_i2c>;
-	los-gpios = <&cpm_gpio2 22 GPIO_ACTIVE_HIGH>;
-	mod-def0-gpios = <&cpm_gpio2 21 GPIO_ACTIVE_LOW>;
-	maximum-power-milliwatt = <1000>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&cpm_sfp_1g_pins &cps_sfp_1g_pins>;
-	tx-disable-gpios = <&cps_gpio1 24 GPIO_ACTIVE_HIGH>;
-	tx-fault-gpios = <&cpm_gpio2 19 GPIO_ACTIVE_HIGH>;
-};
-
-&cps_emac3 {
-	phy-names = "comphy";
-	phys = <&cps_comphy5 0>;
-	sfp = <&sfp_eth3>;
-};
-
-Example #2: Serdes to PHY to SFP connection
-
-sfp_eth0: sfp-eth0 {
-	compatible = "sff,sfp";
-	i2c-bus = <&sfpp0_i2c>;
-	los-gpios = <&cps_gpio1 28 GPIO_ACTIVE_HIGH>;
-	mod-def0-gpios = <&cps_gpio1 27 GPIO_ACTIVE_LOW>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&cps_sfpp0_pins>;
-	tx-disable-gpios = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>;
-	tx-fault-gpios  = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>;
-};
-
-p0_phy: ethernet-phy@0 {
-	compatible = "ethernet-phy-ieee802.3-c45";
-	pinctrl-names = "default";
-	pinctrl-0 = <&cpm_phy0_pins &cps_phy0_pins>;
-	reg = <0>;
-	interrupt = <&cpm_gpio2 18 IRQ_TYPE_EDGE_FALLING>;
-	sfp = <&sfp_eth0>;
-};
-
-&cpm_eth0 {
-	phy = <&p0_phy>;
-	phy-mode = "10gbase-kr";
-};

Documentation/devicetree/bindings/net/sff,sfp.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/net/sff,sfp.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP)
+  Transceiver
+
+maintainers:
+  - Russell King <linux@armlinux.org.uk>
+
+properties:
+  compatible:
+    enum:
+      - sff,sfp  # for SFP modules
+      - sff,sff  # for soldered down SFF modules
+
+  i2c-bus:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      phandle of an I2C bus controller for the SFP two wire serial
+
+  maximum-power-milliwatt:
+    maxItems: 1
+    description:
+      Maximum module power consumption Specifies the maximum power consumption
+      allowable by a module in the slot, in milli-Watts. Presently, modules can
+      be up to 1W, 1.5W or 2W.
+
+  "mod-def0-gpios":
+    maxItems: 1
+    description:
+      GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS) module
+      presence input gpio signal, active (module absent) high. Must not be
+      present for SFF modules
+
+  "los-gpios":
+    maxItems: 1
+    description:
+      GPIO phandle and a specifier of the Receiver Loss of Signal Indication
+      input gpio signal, active (signal lost) high
+
+  "tx-fault-gpios":
+    maxItems: 1
+    description:
+      GPIO phandle and a specifier of the Module Transmitter Fault input gpio
+      signal, active (fault condition) high
+
+  "tx-disable-gpios":
+    maxItems: 1
+    description:
+      GPIO phandle and a specifier of the Transmitter Disable output gpio
+      signal, active (Tx disable) high
+
+  "rate-select0-gpios":
+    maxItems: 1
+    description:
+      GPIO phandle and a specifier of the Rx Signaling Rate Select (AKA RS0)
+      output gpio signal, low - low Rx rate, high - high Rx rate Must not be
+      present for SFF modules
+
+  "rate-select1-gpios":
+    maxItems: 1
+    description:
+      GPIO phandle and a specifier of the Tx Signaling Rate Select (AKA RS1)
+      output gpio signal (SFP+ only), low - low Tx rate, high - high Tx rate. Must
+      not be present for SFF modules
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: sff,sff
+    then:
+      properties:
+        mod-def0-gpios: false
+        rate-select0-gpios: false
+        rate-select1-gpios: false
+
+required:
+  - compatible
+  - i2c-bus
+
+additionalProperties: false
+
+examples:
+  - | # Direct serdes to SFP connection
+    #include <dt-bindings/gpio/gpio.h>
+
+    sfp_eth3: sfp-eth3 {
+      compatible = "sff,sfp";
+      i2c-bus = <&sfp_1g_i2c>;
+      los-gpios = <&cpm_gpio2 22 GPIO_ACTIVE_HIGH>;
+      mod-def0-gpios = <&cpm_gpio2 21 GPIO_ACTIVE_LOW>;
+      maximum-power-milliwatt = <1000>;
+      pinctrl-names = "default";
+      pinctrl-0 = <&cpm_sfp_1g_pins &cps_sfp_1g_pins>;
+      tx-disable-gpios = <&cps_gpio1 24 GPIO_ACTIVE_HIGH>;
+      tx-fault-gpios = <&cpm_gpio2 19 GPIO_ACTIVE_HIGH>;
+    };
+
+    cps_emac3 {
+      phy-names = "comphy";
+      phys = <&cps_comphy5 0>;
+      sfp = <&sfp_eth3>;
+    };
+
+  - | # Serdes to PHY to SFP connection
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    sfp_eth0: sfp-eth0 {
+      compatible = "sff,sfp";
+      i2c-bus = <&sfpp0_i2c>;
+      los-gpios = <&cps_gpio1 28 GPIO_ACTIVE_HIGH>;
+      mod-def0-gpios = <&cps_gpio1 27 GPIO_ACTIVE_LOW>;
+      pinctrl-names = "default";
+      pinctrl-0 = <&cps_sfpp0_pins>;
+      tx-disable-gpios = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>;
+      tx-fault-gpios  = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>;
+    };
+
+    mdio {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      p0_phy: ethernet-phy@0 {
+        compatible = "ethernet-phy-ieee802.3-c45";
+        pinctrl-names = "default";
+        pinctrl-0 = <&cpm_phy0_pins &cps_phy0_pins>;
+        reg = <0>;
+        interrupt = <&cpm_gpio2 18 IRQ_TYPE_EDGE_FALLING>;
+        sfp = <&sfp_eth0>;
+      };
+    };
+
+    cpm_eth0 {
+      phy = <&p0_phy>;
+      phy-mode = "10gbase-kr";
+    };

MAINTAINERS

@@ -18189,6 +18189,7 @@ SFF/SFP/SFP+ MODULE SUPPORT
 M:	Russell King <linux@armlinux.org.uk>
 L:	netdev@vger.kernel.org
 S:	Maintained
+F:	Documentation/devicetree/bindings/net/sff,sfp.yaml
 F:	drivers/net/phy/phylink.c
 F:	drivers/net/phy/sfp*
 F:	include/linux/mdio/mdio-i2c.h