From patchwork Fri Aug 21 11:22:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 1349212 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=glider.be Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BXzql2h5Fz9sPC for ; Fri, 21 Aug 2020 21:31:31 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727833AbgHULbZ (ORCPT ); Fri, 21 Aug 2020 07:31:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727770AbgHULbI (ORCPT ); Fri, 21 Aug 2020 07:31:08 -0400 Received: from michel.telenet-ops.be (michel.telenet-ops.be [IPv6:2a02:1800:110:4::f00:18]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 62B72C061386 for ; Fri, 21 Aug 2020 04:22:11 -0700 (PDT) Received: from ramsan ([84.195.186.194]) by michel.telenet-ops.be with bizsmtp id JBN92300Z4C55Sk06BN9vl; Fri, 21 Aug 2020 13:22:09 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan with esmtp (Exim 4.90_1) (envelope-from ) id 1k957Z-0002vE-NU; Fri, 21 Aug 2020 13:22:09 +0200 Received: from geert by rox.of.borg with local (Exim 4.90_1) (envelope-from ) id 1k957Z-0001OE-Lv; Fri, 21 Aug 2020 13:22:09 +0200 From: Geert Uytterhoeven To: Linus Walleij , Rob Herring Cc: linux-renesas-soc@vger.kernel.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH v3] dt-bindings: pinctrl: sh-pfc: Convert to json-schema Date: Fri, 21 Aug 2020 13:22:08 +0200 Message-Id: <20200821112208.5295-1-geert+renesas@glider.be> X-Mailer: git-send-email 2.17.1 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Convert the Renesas Pin Function Controller (PFC) Device Tree binding documentation to json-schema. Document missing properties. Drop deprecated and obsolete #gpio-range-cells property. Update the example to match reality. Drop consumer examples, as they do not belong here. Signed-off-by: Geert Uytterhoeven Reviewed-by: Rob Herring Reviewed-by: Linus Walleij --- Notes: - "interrupts-extended" is used explicitly, because dt-schema does not apply the related fixup when "required: interrupts" is conditional, - "phandle: true" is needed because dt-schema does not add it automatically to subnodes. To be queued in sh-pfc for v5.10. v3: - Enable "drive-strength" and "power-source" enum checks, now dt-schema applies fixups correctly, - Refer to child schema instead of duplicating everything for grandchild nodes, - Use "pinctrl" generic node name, - Replace sh73a0 example by r8a7740 and r8a77951 examples, - Add child and grandchild example nodes to exercise all schema classes, v2: - Add missing "input" property for subnodes, - Rebase on top of: - "dt-bindings: pinctrl: sh-pfc: Document r8a7742 PFC support", - "dt-bindings: pinctrl: sh-pfc: Document r8a774e1 PFC support", - Describe pin configuration subnodes. --- .../bindings/pinctrl/renesas,pfc-pinctrl.txt | 188 ----------------- .../bindings/pinctrl/renesas,pfc.yaml | 193 ++++++++++++++++++ 2 files changed, 193 insertions(+), 188 deletions(-) delete mode 100644 Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt create mode 100644 Documentation/devicetree/bindings/pinctrl/renesas,pfc.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt deleted file mode 100644 index d75476e245140c4a..0000000000000000 --- a/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt +++ /dev/null @@ -1,188 +0,0 @@ -* Renesas Pin Function Controller (GPIO and Pin Mux/Config) - -The Pin Function Controller (PFC) is a Pin Mux/Config controller. On SH73A0, -R8A73A4 and R8A7740 it also acts as a GPIO controller. - - -Pin Control ------------ - -Required Properties: - - - compatible: should be one of the following. - - "renesas,pfc-emev2": for EMEV2 (EMMA Mobile EV2) compatible pin-controller. - - "renesas,pfc-r8a73a4": for R8A73A4 (R-Mobile APE6) compatible pin-controller. - - "renesas,pfc-r8a7740": for R8A7740 (R-Mobile A1) compatible pin-controller. - - "renesas,pfc-r8a7742": for R8A7742 (RZ/G1H) compatible pin-controller. - - "renesas,pfc-r8a7743": for R8A7743 (RZ/G1M) compatible pin-controller. - - "renesas,pfc-r8a7744": for R8A7744 (RZ/G1N) compatible pin-controller. - - "renesas,pfc-r8a7745": for R8A7745 (RZ/G1E) compatible pin-controller. - - "renesas,pfc-r8a77470": for R8A77470 (RZ/G1C) compatible pin-controller. - - "renesas,pfc-r8a774a1": for R8A774A1 (RZ/G2M) compatible pin-controller. - - "renesas,pfc-r8a774b1": for R8A774B1 (RZ/G2N) compatible pin-controller. - - "renesas,pfc-r8a774c0": for R8A774C0 (RZ/G2E) compatible pin-controller. - - "renesas,pfc-r8a774e1": for R8A774E1 (RZ/G2H) compatible pin-controller. - - "renesas,pfc-r8a7778": for R8A7778 (R-Car M1) compatible pin-controller. - - "renesas,pfc-r8a7779": for R8A7779 (R-Car H1) compatible pin-controller. - - "renesas,pfc-r8a7790": for R8A7790 (R-Car H2) compatible pin-controller. - - "renesas,pfc-r8a7791": for R8A7791 (R-Car M2-W) compatible pin-controller. - - "renesas,pfc-r8a7792": for R8A7792 (R-Car V2H) compatible pin-controller. - - "renesas,pfc-r8a7793": for R8A7793 (R-Car M2-N) compatible pin-controller. - - "renesas,pfc-r8a7794": for R8A7794 (R-Car E2) compatible pin-controller. - - "renesas,pfc-r8a7795": for R8A7795 (R-Car H3) compatible pin-controller. - - "renesas,pfc-r8a7796": for R8A77960 (R-Car M3-W) compatible pin-controller. - - "renesas,pfc-r8a77961": for R8A77961 (R-Car M3-W+) compatible pin-controller. - - "renesas,pfc-r8a77965": for R8A77965 (R-Car M3-N) compatible pin-controller. - - "renesas,pfc-r8a77970": for R8A77970 (R-Car V3M) compatible pin-controller. - - "renesas,pfc-r8a77980": for R8A77980 (R-Car V3H) compatible pin-controller. - - "renesas,pfc-r8a77990": for R8A77990 (R-Car E3) compatible pin-controller. - - "renesas,pfc-r8a77995": for R8A77995 (R-Car D3) compatible pin-controller. - - "renesas,pfc-sh73a0": for SH73A0 (SH-Mobile AG5) compatible pin-controller. - - - reg: Base address and length of each memory resource used by the pin - controller hardware module. - -Optional properties: - - - #gpio-range-cells: Mandatory when the PFC doesn't handle GPIO, forbidden - otherwise. Should be 3. - - - interrupts-extended: Specify the interrupts associated with external - IRQ pins. This property is mandatory when the PFC handles GPIOs and - forbidden otherwise. When specified, it must contain one interrupt per - external IRQ, sorted by external IRQ number. - -The PFC node also acts as a container for pin configuration nodes. Please refer -to pinctrl-bindings.txt in this directory for the definition of the term "pin -configuration node" and for the common pinctrl bindings used by client devices. - -Each pin configuration node represents a desired configuration for a pin, a -pin group, or a list of pins or pin groups. The configuration can include the -function to select on those pin(s) and pin configuration parameters (such as -pull-up and pull-down). - -Pin configuration nodes contain pin configuration properties, either directly -or grouped in child subnodes. Both pin muxing and configuration parameters can -be grouped in that way and referenced as a single pin configuration node by -client devices. - -A configuration node or subnode must reference at least one pin (through the -pins or pin groups properties) and contain at least a function or one -configuration parameter. When the function is present only pin groups can be -used to reference pins. - -All pin configuration nodes and subnodes names are ignored. All of those nodes -are parsed through phandles and processed purely based on their content. - -Pin Configuration Node Properties: - -- pins : An array of strings, each string containing the name of a pin. -- groups : An array of strings, each string containing the name of a pin - group. - -- function: A string containing the name of the function to mux to the pin - group(s) specified by the groups property. - - Valid values for pin, group and function names can be found in the group and - function arrays of the PFC data file corresponding to the SoC - (drivers/pinctrl/sh-pfc/pfc-*.c) - -The pin configuration parameters use the generic pinconf bindings defined in -pinctrl-bindings.txt in this directory. The supported parameters are -bias-disable, bias-pull-up, bias-pull-down, drive-strength and power-source. For -pins that have a configurable I/O voltage, the power-source value should be the -nominal I/O voltage in millivolts. - - -GPIO ----- - -On SH73A0, R8A73A4 and R8A7740 the PFC node is also a GPIO controller node. - -Required Properties: - - - gpio-controller: Marks the device node as a gpio controller. - - - #gpio-cells: Should be 2. The first cell is the GPIO number and the second - cell specifies GPIO flags, as defined in . Only the - GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported. - -The syntax of the gpio specifier used by client nodes should be the following -with values derived from the SoC user manual. - - <[phandle of the gpio controller node] - [pin number within the gpio controller] - [flags]> - -On other mach-shmobile platforms GPIO is handled by the gpio-rcar driver. -Please refer to Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml -for documentation of the GPIO device tree bindings on those platforms. - - -Examples --------- - -Example 1: SH73A0 (SH-Mobile AG5) pin controller node - - pfc: pin-controller@e6050000 { - compatible = "renesas,pfc-sh73a0"; - reg = <0xe6050000 0x8000>, - <0xe605801c 0x1c>; - gpio-controller; - #gpio-cells = <2>; - interrupts-extended = - <&irqpin0 0 0>, <&irqpin0 1 0>, <&irqpin0 2 0>, <&irqpin0 3 0>, - <&irqpin0 4 0>, <&irqpin0 5 0>, <&irqpin0 6 0>, <&irqpin0 7 0>, - <&irqpin1 0 0>, <&irqpin1 1 0>, <&irqpin1 2 0>, <&irqpin1 3 0>, - <&irqpin1 4 0>, <&irqpin1 5 0>, <&irqpin1 6 0>, <&irqpin1 7 0>, - <&irqpin2 0 0>, <&irqpin2 1 0>, <&irqpin2 2 0>, <&irqpin2 3 0>, - <&irqpin2 4 0>, <&irqpin2 5 0>, <&irqpin2 6 0>, <&irqpin2 7 0>, - <&irqpin3 0 0>, <&irqpin3 1 0>, <&irqpin3 2 0>, <&irqpin3 3 0>, - <&irqpin3 4 0>, <&irqpin3 5 0>, <&irqpin3 6 0>, <&irqpin3 7 0>; - }; - -Example 2: A GPIO LED node that references a GPIO - - #include - - leds { - compatible = "gpio-leds"; - led1 { - gpios = <&pfc 20 GPIO_ACTIVE_LOW>; - }; - }; - -Example 3: KZM-A9-GT (SH-Mobile AG5) default pin state hog and pin control maps - for the MMCIF and SCIFA4 devices - - &pfc { - pinctrl-0 = <&scifa4_pins>; - pinctrl-names = "default"; - - mmcif_pins: mmcif { - mux { - groups = "mmc0_data8_0", "mmc0_ctrl_0"; - function = "mmc0"; - }; - cfg { - groups = "mmc0_data8_0"; - pins = "PORT279"; - bias-pull-up; - }; - }; - - scifa4_pins: scifa4 { - groups = "scifa4_data", "scifa4_ctrl"; - function = "scifa4"; - }; - }; - -Example 4: KZM-A9-GT (SH-Mobile AG5) default pin state for the MMCIF device - - &mmcif { - pinctrl-0 = <&mmcif_pins>; - pinctrl-names = "default"; - - bus-width = <8>; - vmmc-supply = <®_1p8v>; - }; diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,pfc.yaml b/Documentation/devicetree/bindings/pinctrl/renesas,pfc.yaml new file mode 100644 index 0000000000000000..4efe117550bdb21f --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/renesas,pfc.yaml @@ -0,0 +1,193 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/renesas,pfc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas Pin Function Controller (GPIO and Pin Mux/Config) + +maintainers: + - Geert Uytterhoeven + +description: + The Pin Function Controller (PFC) is a Pin Mux/Config controller. + On SH/R-Mobile SoCs it also acts as a GPIO controller. + +properties: + compatible: + enum: + - renesas,pfc-emev2 # EMMA Mobile EV2 + - renesas,pfc-r8a73a4 # R-Mobile APE6 + - renesas,pfc-r8a7740 # R-Mobile A1 + - renesas,pfc-r8a7742 # RZ/G1H + - renesas,pfc-r8a7743 # RZ/G1M + - renesas,pfc-r8a7744 # RZ/G1N + - renesas,pfc-r8a7745 # RZ/G1E + - renesas,pfc-r8a77470 # RZ/G1C + - renesas,pfc-r8a774a1 # RZ/G2M + - renesas,pfc-r8a774b1 # RZ/G2N + - renesas,pfc-r8a774c0 # RZ/G2E + - renesas,pfc-r8a774e1 # RZ/G2H + - renesas,pfc-r8a7778 # R-Car M1 + - renesas,pfc-r8a7779 # R-Car H1 + - renesas,pfc-r8a7790 # R-Car H2 + - renesas,pfc-r8a7791 # R-Car M2-W + - renesas,pfc-r8a7792 # R-Car V2H + - renesas,pfc-r8a7793 # R-Car M2-N + - renesas,pfc-r8a7794 # R-Car E2 + - renesas,pfc-r8a7795 # R-Car H3 + - renesas,pfc-r8a7796 # R-Car M3-W + - renesas,pfc-r8a77961 # R-Car M3-W+ + - renesas,pfc-r8a77965 # R-Car M3-N + - renesas,pfc-r8a77970 # R-Car V3M + - renesas,pfc-r8a77980 # R-Car V3H + - renesas,pfc-r8a77990 # R-Car E3 + - renesas,pfc-r8a77995 # R-Car D3 + - renesas,pfc-sh73a0 # SH-Mobile AG5 + + reg: + minItems: 1 + maxItems: 2 + + gpio-controller: true + + '#gpio-cells': + const: 2 + + gpio-ranges: + minItems: 1 + maxItems: 16 + + interrupts-extended: + minItems: 32 + maxItems: 64 + description: + Specify the interrupts associated with external IRQ pins on SoCs where + the PFC acts as a GPIO controller. It must contain one interrupt per + external IRQ, sorted by external IRQ number. + + power-domains: + maxItems: 1 + +required: + - compatible + - reg + +if: + properties: + compatible: + items: + enum: + - renesas,pfc-r8a73a4 + - renesas,pfc-r8a7740 + - renesas,pfc-sh73a0 +then: + required: + - interrupts-extended + - gpio-controller + - '#gpio-cells' + - gpio-ranges + - power-domains + +additionalProperties: + anyOf: + - type: object + allOf: + - $ref: pincfg-node.yaml# + - $ref: pinmux-node.yaml# + + description: + Pin controller client devices use pin configuration subnodes (children + and grandchildren) for desired pin configuration. + Client device subnodes use below standard properties. + + properties: + phandle: true + function: true + groups: true + pins: true + bias-disable: true + bias-pull-down: true + bias-pull-up: true + drive-strength: + enum: [ 3, 6, 9, 12, 15, 18, 21, 24 ] # Superset of supported values + power-source: + enum: [ 1800, 3300 ] + gpio-hog: true + gpios: true + input: true + output-high: true + output-low: true + + additionalProperties: false + + - type: object + properties: + phandle: true + + additionalProperties: + $ref: "#/additionalProperties/anyOf/0" + +examples: + - | + pfc: pinctrl@e6050000 { + compatible = "renesas,pfc-r8a7740"; + reg = <0xe6050000 0x8000>, + <0xe605800c 0x20>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pfc 0 0 212>; + interrupts-extended = + <&irqpin0 0 0>, <&irqpin0 1 0>, <&irqpin0 2 0>, <&irqpin0 3 0>, + <&irqpin0 4 0>, <&irqpin0 5 0>, <&irqpin0 6 0>, <&irqpin0 7 0>, + <&irqpin1 0 0>, <&irqpin1 1 0>, <&irqpin1 2 0>, <&irqpin1 3 0>, + <&irqpin1 4 0>, <&irqpin1 5 0>, <&irqpin1 6 0>, <&irqpin1 7 0>, + <&irqpin2 0 0>, <&irqpin2 1 0>, <&irqpin2 2 0>, <&irqpin2 3 0>, + <&irqpin2 4 0>, <&irqpin2 5 0>, <&irqpin2 6 0>, <&irqpin2 7 0>, + <&irqpin3 0 0>, <&irqpin3 1 0>, <&irqpin3 2 0>, <&irqpin3 3 0>, + <&irqpin3 4 0>, <&irqpin3 5 0>, <&irqpin3 6 0>, <&irqpin3 7 0>; + power-domains = <&pd_c5>; + + lcd0_mux { + /* DBGMD/LCDC0/FSIA MUX */ + gpio-hog; + gpios = <176 0>; + output-high; + }; + }; + + - | + pinctrl@e6060000 { + compatible = "renesas,pfc-r8a7795"; + reg = <0xe6060000 0x50c>; + + avb_pins: avb { + mux { + groups = "avb_link", "avb_mdio", "avb_mii"; + function = "avb"; + }; + + pins_mdio { + groups = "avb_mdio"; + drive-strength = <24>; + }; + + pins_mii_tx { + pins = "PIN_AVB_TX_CTL", "PIN_AVB_TXC", + "PIN_AVB_TD0", "PIN_AVB_TD1", "PIN_AVB_TD2", + "PIN_AVB_TD3"; + drive-strength = <12>; + }; + }; + + keys_pins: keys { + pins = "GP_5_17", "GP_5_20", "GP_5_22", "GP_2_1"; + bias-pull-up; + }; + + sdhi0_pins: sd0 { + groups = "sdhi0_data4", "sdhi0_ctrl"; + function = "sdhi0"; + power-source = <3300>; + }; + };