From patchwork Tue Mar 28 07:33:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 1762180 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.a=rsa-sha256 header.s=google header.b=IuvzJdDP; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4Pm1dX0x8Jz1yYk for ; Tue, 28 Mar 2023 18:33:52 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231172AbjC1Hdu (ORCPT ); Tue, 28 Mar 2023 03:33:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231203AbjC1Hdt (ORCPT ); Tue, 28 Mar 2023 03:33:49 -0400 Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8F3F40EE for ; Tue, 28 Mar 2023 00:33:46 -0700 (PDT) Received: by mail-ed1-x52f.google.com with SMTP id ek18so45789883edb.6 for ; Tue, 28 Mar 2023 00:33:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1679988824; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=XLJ+jDIrSZvakcXMeiXZPJ9OyuW2iT0qYiAHEyeO2Pk=; b=IuvzJdDPnOdoihfE8rpb6ML6DhTCgt5AqAoK0mzHTDNvm0mdLQ/AGkiYZa7Mo7hBdZ uEsaGbkhpR4ckAmk/okfbUSjZZKa5YXBFEkVDw+NThJPuQO6N2Md2KEZL2AfjJI2HPy+ 3aPWXZXXntS1Hm/Q35co8OlDBjYUJlSALPV2g= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679988824; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=XLJ+jDIrSZvakcXMeiXZPJ9OyuW2iT0qYiAHEyeO2Pk=; b=E4lMkQrbrkegwIuNsT8x2fvZGuPw02D7Z1sHVLKSNy6AlBUbuPK4Ae4NcwNkAi+A47 W8vjRatEBGs8q0dIEmN56T71hNDSiJYlew09kFeLTxIZG1m7lO3yagSz30aIqJ9bxT+j LHzmo+Apktdr03YlUxCg2K+KhXGz737Yvif2NVBydGsDt7oWy0vNRE3JNAv5rZ7Nlph+ jMtGWuOOX/EY5UZmNJ3esoenRYeMMCLOjQ/P6ybTIY0N27LnMNTyqUVd1caBUeVzOY6P /ey0B1xUbjfH+J9sPwPZjmBup6P4PUnmRUcRBQb0+JcJqOevMrIR8LNfW9IBwsVskAv5 /V7Q== X-Gm-Message-State: AAQBX9dmH4vQ4RoJlKLIcFnxsY3kO9tzO4BJ+B6BwCFsDhGcAFLKsyCW vGAxsoLqVOjxB5aHGmC3T0WfWw== X-Google-Smtp-Source: AKy350aUGpDaVX4CRikG6yXjQagHkEfMr4HIcK5RDdByqX6CyW1EKgPOFrD20rNVzZiwL4lT4nEb5g== X-Received: by 2002:aa7:cac5:0:b0:500:4a5d:af3f with SMTP id l5-20020aa7cac5000000b005004a5daf3fmr15247146edt.34.1679988824575; Tue, 28 Mar 2023 00:33:44 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-87-0-102-254.retail.telecomitalia.it. [87.0.102.254]) by smtp.gmail.com with ESMTPSA id 15-20020a508e4f000000b004fa99a22c3bsm15478850edx.61.2023.03.28.00.33.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Mar 2023 00:33:44 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Vincent Mailhol , Rob Herring , Amarula patchwork , michael@amarulasolutions.com, Marc Kleine-Budde , Alexandre Torgue , Krzysztof Kozlowski , Dario Binacchi , Christophe Roullier , Dmitry Torokhov , Krzysztof Kozlowski , Mark Brown , Maxime Coquelin , Rob Herring , Viresh Kumar , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v10 1/5] dt-bindings: arm: stm32: add compatible for syscon gcan node Date: Tue, 28 Mar 2023 09:33:24 +0200 Message-Id: <20230328073328.3949796-2-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230328073328.3949796-1-dario.binacchi@amarulasolutions.com> References: <20230328073328.3949796-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Spam-Status: No, score=-0.2 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Since commit ad440432d1f9 ("dt-bindings: mfd: Ensure 'syscon' has a more specific compatible") it is required to provide at least 2 compatibles string for syscon node. This patch documents the new compatible for stm32f4 SoC to support global/shared CAN registers access for bxCAN controllers. Signed-off-by: Dario Binacchi Acked-by: Rob Herring --- (no changes since v9) Changes in v9: - Fix commit description formatting. No semantic changes have been made. Changes in v5: - Add Rob Herring's Acked-by tag. .../devicetree/bindings/arm/stm32/st,stm32-syscon.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml b/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml index b2b156cc160a..ad8e51aa01b0 100644 --- a/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml +++ b/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml @@ -20,6 +20,7 @@ properties: - st,stm32-syscfg - st,stm32-power-config - st,stm32-tamp + - st,stm32f4-gcan - const: syscon - items: - const: st,stm32-tamp @@ -42,6 +43,7 @@ if: contains: enum: - st,stm32mp157-syscfg + - st,stm32f4-gcan then: required: - clocks From patchwork Tue Mar 28 07:33:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 1762181 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.a=rsa-sha256 header.s=google header.b=fHuz3/Jv; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4Pm1dm6d88z1yYS for ; Tue, 28 Mar 2023 18:34:04 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231929AbjC1HeB (ORCPT ); Tue, 28 Mar 2023 03:34:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43298 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231561AbjC1Hdv (ORCPT ); Tue, 28 Mar 2023 03:33:51 -0400 Received: from mail-ed1-x52c.google.com (mail-ed1-x52c.google.com [IPv6:2a00:1450:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4674740E3 for ; Tue, 28 Mar 2023 00:33:47 -0700 (PDT) Received: by mail-ed1-x52c.google.com with SMTP id b20so45852728edd.1 for ; Tue, 28 Mar 2023 00:33:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1679988826; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=81V4WG2Py2oEHuOAf8mFt9n+MMzcYuintrA4k96hyCk=; b=fHuz3/JvHKFJl4aHOKVNqY0NVKXvM7/HcN8CMEL37x76Sg/gNZjWYcr8NzHQVIUyXv KH63ag8K8zkQrBFuY7R7nzt7zWFZv9TkG+dSrsYEXs/8x5EizacWfAX9BBM5Vgp76Igf wWewKdW6o6gmEOfftPj0hWrFVWypYG/ptgvZA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679988826; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=81V4WG2Py2oEHuOAf8mFt9n+MMzcYuintrA4k96hyCk=; b=ECDHyPX3j3VPz2PC0fDGTatbm/GuLxoGlV2YkKye+f8++nonpD1QU19awjDrbT0X+X 9q+cYj94O/eJnqV2TIQ1co7+lTHcbfuppe4+eA+ehBskS1XK5h+IUbdjL8u86AbOiNnh rkeHVEP6oHNYpRLnXQvIFFqgrtKHb8njysIoGzNEgMaap/Sh5kHOln2p7lSpg9eS04FN MQmelz1lG1E8VAzO4r+DP6H6zO3WSElMJZ65L/gxcK8COME1C+/bibxVd7Z0Om2GVXfb MhLyDE+3QwtyTOuYqQZiyQ8zw5vLS45JXmQqrv1gLwV2JZHIUnKoUV1lotLKmfYTYWhF Q3tg== X-Gm-Message-State: AAQBX9f9de5aY0HTA6VVwqK2d78gqjtOCNJxaaPyRSVLuJudKSRtvVu9 Q3AkMx+QOaLzfLAvqy26f94xtA== X-Google-Smtp-Source: AKy350YMHRUUI0sIzpaRdaU598Pj9B9QeJ9n+ysjS/JhiTsW+ZBhBX5+DEXzztk/si+Uj0rohAL2KA== X-Received: by 2002:a05:6402:712:b0:502:20f0:3ee1 with SMTP id w18-20020a056402071200b0050220f03ee1mr14140124edx.31.1679988826415; Tue, 28 Mar 2023 00:33:46 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-87-0-102-254.retail.telecomitalia.it. [87.0.102.254]) by smtp.gmail.com with ESMTPSA id 15-20020a508e4f000000b004fa99a22c3bsm15478850edx.61.2023.03.28.00.33.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Mar 2023 00:33:46 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Vincent Mailhol , Rob Herring , Amarula patchwork , michael@amarulasolutions.com, Marc Kleine-Budde , Alexandre Torgue , Krzysztof Kozlowski , Dario Binacchi , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Krzysztof Kozlowski , Maxime Coquelin , Paolo Abeni , Rob Herring , Wolfgang Grandegger , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-can@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, netdev@vger.kernel.org Subject: [PATCH v10 2/5] dt-bindings: net: can: add STM32 bxcan DT bindings Date: Tue, 28 Mar 2023 09:33:25 +0200 Message-Id: <20230328073328.3949796-3-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230328073328.3949796-1-dario.binacchi@amarulasolutions.com> References: <20230328073328.3949796-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Spam-Status: No, score=-0.2 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add documentation of device tree bindings for the STM32 basic extended CAN (bxcan) controller. Signed-off-by: Dario Binacchi Reviewed-by: Rob Herring --- Changes in v10: - Fix errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'. Fix the "st,can-primary" description removing the "Note:" word that caused the failure. Changes in v9: - Replace master/slave terms with primary/secondary. Changes in v5: - Add Rob Herring's Reviewed-by tag. Changes in v4: - Remove "st,stm32f4-bxcan-core" compatible. In this way the can nodes (compatible "st,stm32f4-bxcan") are no longer children of a parent node with compatible "st,stm32f4-bxcan-core". - Add the "st,gcan" property (global can memory) to can nodes which references a "syscon" node containing the shared clock and memory addresses. Changes in v3: - Remove 'Dario Binacchi ' SOB. - Add description to the parent of the two child nodes. - Move "patterProperties:" after "properties: in top level before "required". - Add "clocks" to the "required:" list of the child nodes. Changes in v2: - Change the file name into 'st,stm32-bxcan-core.yaml'. - Rename compatibles: - st,stm32-bxcan-core -> st,stm32f4-bxcan-core - st,stm32-bxcan -> st,stm32f4-bxcan - Rename master property to st,can-master. - Remove the status property from the example. - Put the node child properties as required. .../bindings/net/can/st,stm32-bxcan.yaml | 85 +++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/can/st,stm32-bxcan.yaml diff --git a/Documentation/devicetree/bindings/net/can/st,stm32-bxcan.yaml b/Documentation/devicetree/bindings/net/can/st,stm32-bxcan.yaml new file mode 100644 index 000000000000..2bfac2089964 --- /dev/null +++ b/Documentation/devicetree/bindings/net/can/st,stm32-bxcan.yaml @@ -0,0 +1,85 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/can/st,stm32-bxcan.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: STMicroelectronics bxCAN controller + +description: STMicroelectronics BxCAN controller for CAN bus + +maintainers: + - Dario Binacchi + +allOf: + - $ref: can-controller.yaml# + +properties: + compatible: + enum: + - st,stm32f4-bxcan + + st,can-primary: + description: + Primary and secondary mode of the bxCAN peripheral is only relevant + if the chip has two CAN peripherals. In that case they share some + of the required logic. + To avoid misunderstandings, it should be noted that ST documentation + uses the terms master/slave instead of primary/secondary. + type: boolean + + reg: + maxItems: 1 + + interrupts: + items: + - description: transmit interrupt + - description: FIFO 0 receive interrupt + - description: FIFO 1 receive interrupt + - description: status change error interrupt + + interrupt-names: + items: + - const: tx + - const: rx0 + - const: rx1 + - const: sce + + resets: + maxItems: 1 + + clocks: + maxItems: 1 + + st,gcan: + $ref: "/schemas/types.yaml#/definitions/phandle-array" + description: + The phandle to the gcan node which allows to access the 512-bytes + SRAM memory shared by the two bxCAN cells (CAN1 primary and CAN2 + secondary) in dual CAN peripheral configuration. + +required: + - compatible + - reg + - interrupts + - resets + - clocks + - st,gcan + +additionalProperties: false + +examples: + - | + #include + #include + + can1: can@40006400 { + compatible = "st,stm32f4-bxcan"; + reg = <0x40006400 0x200>; + interrupts = <19>, <20>, <21>, <22>; + interrupt-names = "tx", "rx0", "rx1", "sce"; + resets = <&rcc STM32F4_APB1_RESET(CAN1)>; + clocks = <&rcc 0 STM32F4_APB1_CLOCK(CAN1)>; + st,can-primary; + st,gcan = <&gcan>; + };