From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F492C76195 for ; Tue, 28 Mar 2023 07:33:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231126AbjC1Hds (ORCPT ); Tue, 28 Mar 2023 03:33:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230047AbjC1Hdq (ORCPT ); Tue, 28 Mar 2023 03:33:46 -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 7E37A420A for ; Tue, 28 Mar 2023 00:33:44 -0700 (PDT) Received: by mail-ed1-x52c.google.com with SMTP id ew6so45729613edb.7 for ; Tue, 28 Mar 2023 00:33:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1679988823; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=IQemtvhch+zpychTw2wPnm8AfYz48LBPAqThlF3dIgU=; b=DDUJo2LUdaN/EQ7qfHi1KDLV00MZH5/PH2X5hnuvjtJigIGuxkr6lgHi454/0Ic6dV wZuw1pNJuhb0fuh8Fo1T+E25Y1FXav1kSDre2Veb0Dytbkh0LzQD0fIVtPtbJ7lX/45V l171wS7bvsLBAL2BZf2Ps9xCSKcQ1PnFqY8ho= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679988823; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=IQemtvhch+zpychTw2wPnm8AfYz48LBPAqThlF3dIgU=; b=pFY6NGHGbIR9jqHoOJ6zPf//migwNPL4ny0TckTUC1rcQqxWVPgBvB7J2kIXu7F8U3 NrHtluYmbROoEhntQkVazlSR8rXAUbQ9h/4BXLVpR3x0zWKjEOPppByAxkM1zH0BAiQJ 6cNVBhMEew9MjrYMe6hRSqfcxyNXjxcDbS7hOdlkkyLDWQGY35NGzS+3diPtgMsoX+oc DKNrQl8ipgymZT299COuekpN7eKMDlmHCPHHwhdMIp0OG2i2rrfjjh96jauhI/qxnoi7 tDSuOWBNIUJkW21iZEjpDWbinWUZBYI58QLQH2lUzrWyn4FQHwfwrHn8TmutEqCRT3fg 0Vsg== X-Gm-Message-State: AAQBX9e+ir9NsFik67MbaLui338u8GcOEx+QucV6ER0M5K6AGysUY28c FwUOdFkjHjcpRo8UIJqOlsES4Q== X-Google-Smtp-Source: AKy350ZKKZTwjymwVYKuJHzbW08nK3OTt+QV0Hz6QQXW10YOGTYY6Tbp/bTXgkSwuXUVY1zISzfGFQ== X-Received: by 2002:a17:906:c453:b0:90b:53f6:fd8a with SMTP id ck19-20020a170906c45300b0090b53f6fd8amr16162637ejb.10.1679988822894; Tue, 28 Mar 2023 00:33:42 -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.61.2023.03.28.00.33.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Mar 2023 00:33:42 -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 , "David S. Miller" , Dmitry Torokhov , Eric Dumazet , Jakub Kicinski , Krzysztof Kozlowski , Mark Brown , Maxime Coquelin , Paolo Abeni , Rob Herring , Viresh Kumar , 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 0/5] can: bxcan: add support for ST bxCAN controller Date: Tue, 28 Mar 2023 09:33:23 +0200 Message-Id: <20230328073328.3949796-1-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org The series adds support for the basic extended CAN controller (bxCAN) found in many low- to middle-end STM32 SoCs. The driver has been tested on the stm32f469i-discovery board with a kernel version 5.19.0-rc2 in loopback + silent mode: ip link set can0 type can bitrate 125000 loopback on listen-only on ip link set up can0 candump can0 -L & cansend can0 300#AC.AB.AD.AE.75.49.AD.D1 For uboot and kernel compilation, as well as for rootfs creation I used buildroot: make stm32f469_disco_sd_defconfig make but I had to patch can-utils and busybox as can-utils and iproute are not compiled for MMU-less microcotrollers. In the case of can-utils, replacing the calls to fork() with vfork(), I was able to compile the package with working candump and cansend applications, while in the case of iproute, I ran into more than one problem and finally I decided to extend busybox's ip link command for CAN-type devices. I'm still wondering if it was really necessary, but this way I was able to test the driver. 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. - Slightly change the note text at the top of the driver module. No functional changes. Changes in v9: - Fix commit description formatting. No semantic changes have been made. - Replace master/slave terms with primary/secondary. - Replace master/slave terms with primary/secondary. - Replace master/slave terms with primary/secondary. Changes in v8: - Do not enable the clock in probe and enable/disable it in open/close. - Return IRQ_NONE if no IRQ is active. Changes in v7: - Add Vincent Mailhol's Reviewed-by tag. - Remove all unused macros for reading/writing the controller registers. - Add CAN_ERR_CNT flag to notify availability of error counter. - Move the "break" before the newline in the switch/case statements. - Print the mnemotechnic instead of the error value in each netdev_err(). - Remove the debug print for timings parameter. - Do not copy the data if CAN_RTR_FLAG is set in bxcan_start_xmit(). - Populate ndev->ethtool_ops with the default timestamp info. Changes in v6: - move can1 node before gcan to keep ordering by address. Changes in v5: - Add Rob Herring's Acked-by tag. - Add Rob Herring's Reviewed-by tag. - Put static in front of bxcan_enable_filters() definition. 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. - Replace the node can@40006400 (compatible "st,stm32f4-bxcan-core") with the gcan@40006600 node ("sysnode" compatible). The gcan node contains clocks and memory addresses shared by the two can nodes of which it's no longer the parent. - Add to can nodes the "st,gcan" property (global can memory) which references the gcan@40006600 node ("sysnode compatibble). - Add "dt-bindings: arm: stm32: add compatible for syscon gcan node" patch. - Drop the core driver. Thus bxcan-drv.c has been renamed to bxcan.c and moved to the drivers/net/can folder. The drivers/net/can/bxcan directory has therefore been removed. - Use the regmap_*() functions to access the shared memory registers. - Use spinlock to protect bxcan_rmw(). - Use 1 space, instead of tabs, in the macros definition. - Drop clock ref-counting. - Drop unused code. - Drop the _SHIFT macros and use FIELD_GET()/FIELD_PREP() directly. - Add BXCAN_ prefix to lec error codes. - Add the macro BXCAN_RX_MB_NUM. - Enable time triggered mode and use can_rx_offload(). - Use readx_poll_timeout() in function with timeouts. - Loop from tail to head in bxcan_tx_isr(). - Check bits of tsr register instead of pkts variable in bxcan_tx_isr(). - Don't return from bxcan_handle_state_change() if skb/cf are NULL. - Enable/disable the generation of the bus error interrupt depending on can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING. - Don't return from bxcan_handle_bus_err() if skb is NULL. - Drop statistics updating from bxcan_handle_bus_err(). - Add an empty line in front of 'return IRQ_HANDLED;' - Rename bxcan_start() to bxcan_chip_start(). - Rename bxcan_stop() to bxcan_chip_stop(). - Disable all IRQs in bxcan_chip_stop(). - Rename bxcan_close() to bxcan_ndo_stop(). - Use writel instead of bxcan_rmw() to update the dlc register. 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. - Remove 'Dario Binacchi ' SOB. - Add "clocks" to can@0 node. - Remove 'Dario Binacchi ' SOB. - Remove a blank line. - Remove 'Dario Binacchi ' SOB. - Fix the documentation file path in the MAINTAINERS entry. - Do not increment the "stats->rx_bytes" if the frame is remote. - Remove pr_debug() call from bxcan_rmw(). 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. - Remove a blank line. - Fix sparse errors. - Create a MAINTAINERS entry. - Remove the print of the registers address. - Remove the volatile keyword from bxcan_rmw(). - Use tx ring algorithm to manage tx mailboxes. - Use can_{get|put}_echo_skb(). - Update DT properties. Dario Binacchi (5): dt-bindings: arm: stm32: add compatible for syscon gcan node dt-bindings: net: can: add STM32 bxcan DT bindings ARM: dts: stm32: add CAN support on stm32f429 ARM: dts: stm32: add pin map for CAN controller on stm32f4 can: bxcan: add support for ST bxCAN controller .../bindings/arm/stm32/st,stm32-syscon.yaml | 2 + .../bindings/net/can/st,stm32-bxcan.yaml | 85 ++ MAINTAINERS | 7 + arch/arm/boot/dts/stm32f4-pinctrl.dtsi | 30 + arch/arm/boot/dts/stm32f429.dtsi | 29 + drivers/net/can/Kconfig | 12 + drivers/net/can/Makefile | 1 + drivers/net/can/bxcan.c | 1098 +++++++++++++++++ 8 files changed, 1264 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/can/st,stm32-bxcan.yaml create mode 100644 drivers/net/can/bxcan.c -- 2.32.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1DCD6C76195 for ; Tue, 28 Mar 2023 07:34:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=kr87eVrYt+H/nYhQSFrVjPj9AO3dJyWiNAqIA3tyz/Q=; b=Cg39sZkY5dbvnE Mu3tili4r97udnDMOM4z8tu+qlFMwomJ2vMZV/0J62IvkIXJQQiKRT88qidGvvScAU6vvMGkBhT7d n+ngyBUHJSoxDBgtx+xnH8pZUIbgdYGW1twNuL1ZW7yeTuLRqwImZj0m0qb9GErcCQHL2Vjlkf03B pVmHP231Au31fModGhgCbegW+HkhvKI/fXMXHvqMw/e2PQe1zYQcnVLPYWy49IMSPYb1B2KBLulZk 1a8k8y9XY+VJF7MvmxU9GlilJldWGYRUUmbfwNOgPHXRxaT9etQi0r1SDQaSRhZcgZOGonR/94Bv5 iYveOCZKAUYOUQ+L4TkA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1ph3q8-00DSXo-3C; Tue, 28 Mar 2023 07:33:56 +0000 Received: from mail-ed1-x52c.google.com ([2a00:1450:4864:20::52c]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1ph3pw-00DSP6-24 for linux-arm-kernel@lists.infradead.org; Tue, 28 Mar 2023 07:33:47 +0000 Received: by mail-ed1-x52c.google.com with SMTP id er13so4810662edb.9 for ; Tue, 28 Mar 2023 00:33:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1679988823; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=IQemtvhch+zpychTw2wPnm8AfYz48LBPAqThlF3dIgU=; b=DDUJo2LUdaN/EQ7qfHi1KDLV00MZH5/PH2X5hnuvjtJigIGuxkr6lgHi454/0Ic6dV wZuw1pNJuhb0fuh8Fo1T+E25Y1FXav1kSDre2Veb0Dytbkh0LzQD0fIVtPtbJ7lX/45V l171wS7bvsLBAL2BZf2Ps9xCSKcQ1PnFqY8ho= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679988823; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=IQemtvhch+zpychTw2wPnm8AfYz48LBPAqThlF3dIgU=; b=juXB7dzNbTtaZKvrcNjuVQv746EdXIY2ILnFXUYbHV+/z/OXknFcaSJq/Wz1HHtxqp h22YjljbUDxF2KCYqBuJP9c/CEcfYCv+PHauxdI3tZWP54vwKaGn1Xq328RbCx2jWyz2 fKlYgwKbrtRXWMhIpm1CUh9Is+4qF2cq4AGHLcpNYR7U80a5p/0tdAoXsMdDHrOh05Jm K6+b//ShEc8LirCN+Jrp76ZYFU6VMrET801TJ/KVbozVqfmQe+0mBrBAMngzxNym+QNA nrWfCbhhCIWL27WiY0M2q4ifdMXlRxLsmIdnpj4xWqgnTCkkiGn0JAz5E72yoVy3cS8t WuDA== X-Gm-Message-State: AAQBX9fR4PNQBRq96MhGRFrTvWw3vYSLxyFjLSg4/yvNYhnxpU9HufPu raYpJ6MJMOMBolEqWJsP5OBFIg== X-Google-Smtp-Source: AKy350ZKKZTwjymwVYKuJHzbW08nK3OTt+QV0Hz6QQXW10YOGTYY6Tbp/bTXgkSwuXUVY1zISzfGFQ== X-Received: by 2002:a17:906:c453:b0:90b:53f6:fd8a with SMTP id ck19-20020a170906c45300b0090b53f6fd8amr16162637ejb.10.1679988822894; Tue, 28 Mar 2023 00:33:42 -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.61.2023.03.28.00.33.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Mar 2023 00:33:42 -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 , "David S. Miller" , Dmitry Torokhov , Eric Dumazet , Jakub Kicinski , Krzysztof Kozlowski , Mark Brown , Maxime Coquelin , Paolo Abeni , Rob Herring , Viresh Kumar , 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 0/5] can: bxcan: add support for ST bxCAN controller Date: Tue, 28 Mar 2023 09:33:23 +0200 Message-Id: <20230328073328.3949796-1-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230328_003344_769678_72B0901D X-CRM114-Status: GOOD ( 29.39 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The series adds support for the basic extended CAN controller (bxCAN) found in many low- to middle-end STM32 SoCs. The driver has been tested on the stm32f469i-discovery board with a kernel version 5.19.0-rc2 in loopback + silent mode: ip link set can0 type can bitrate 125000 loopback on listen-only on ip link set up can0 candump can0 -L & cansend can0 300#AC.AB.AD.AE.75.49.AD.D1 For uboot and kernel compilation, as well as for rootfs creation I used buildroot: make stm32f469_disco_sd_defconfig make but I had to patch can-utils and busybox as can-utils and iproute are not compiled for MMU-less microcotrollers. In the case of can-utils, replacing the calls to fork() with vfork(), I was able to compile the package with working candump and cansend applications, while in the case of iproute, I ran into more than one problem and finally I decided to extend busybox's ip link command for CAN-type devices. I'm still wondering if it was really necessary, but this way I was able to test the driver. 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. - Slightly change the note text at the top of the driver module. No functional changes. Changes in v9: - Fix commit description formatting. No semantic changes have been made. - Replace master/slave terms with primary/secondary. - Replace master/slave terms with primary/secondary. - Replace master/slave terms with primary/secondary. Changes in v8: - Do not enable the clock in probe and enable/disable it in open/close. - Return IRQ_NONE if no IRQ is active. Changes in v7: - Add Vincent Mailhol's Reviewed-by tag. - Remove all unused macros for reading/writing the controller registers. - Add CAN_ERR_CNT flag to notify availability of error counter. - Move the "break" before the newline in the switch/case statements. - Print the mnemotechnic instead of the error value in each netdev_err(). - Remove the debug print for timings parameter. - Do not copy the data if CAN_RTR_FLAG is set in bxcan_start_xmit(). - Populate ndev->ethtool_ops with the default timestamp info. Changes in v6: - move can1 node before gcan to keep ordering by address. Changes in v5: - Add Rob Herring's Acked-by tag. - Add Rob Herring's Reviewed-by tag. - Put static in front of bxcan_enable_filters() definition. 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. - Replace the node can@40006400 (compatible "st,stm32f4-bxcan-core") with the gcan@40006600 node ("sysnode" compatible). The gcan node contains clocks and memory addresses shared by the two can nodes of which it's no longer the parent. - Add to can nodes the "st,gcan" property (global can memory) which references the gcan@40006600 node ("sysnode compatibble). - Add "dt-bindings: arm: stm32: add compatible for syscon gcan node" patch. - Drop the core driver. Thus bxcan-drv.c has been renamed to bxcan.c and moved to the drivers/net/can folder. The drivers/net/can/bxcan directory has therefore been removed. - Use the regmap_*() functions to access the shared memory registers. - Use spinlock to protect bxcan_rmw(). - Use 1 space, instead of tabs, in the macros definition. - Drop clock ref-counting. - Drop unused code. - Drop the _SHIFT macros and use FIELD_GET()/FIELD_PREP() directly. - Add BXCAN_ prefix to lec error codes. - Add the macro BXCAN_RX_MB_NUM. - Enable time triggered mode and use can_rx_offload(). - Use readx_poll_timeout() in function with timeouts. - Loop from tail to head in bxcan_tx_isr(). - Check bits of tsr register instead of pkts variable in bxcan_tx_isr(). - Don't return from bxcan_handle_state_change() if skb/cf are NULL. - Enable/disable the generation of the bus error interrupt depending on can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING. - Don't return from bxcan_handle_bus_err() if skb is NULL. - Drop statistics updating from bxcan_handle_bus_err(). - Add an empty line in front of 'return IRQ_HANDLED;' - Rename bxcan_start() to bxcan_chip_start(). - Rename bxcan_stop() to bxcan_chip_stop(). - Disable all IRQs in bxcan_chip_stop(). - Rename bxcan_close() to bxcan_ndo_stop(). - Use writel instead of bxcan_rmw() to update the dlc register. 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. - Remove 'Dario Binacchi ' SOB. - Add "clocks" to can@0 node. - Remove 'Dario Binacchi ' SOB. - Remove a blank line. - Remove 'Dario Binacchi ' SOB. - Fix the documentation file path in the MAINTAINERS entry. - Do not increment the "stats->rx_bytes" if the frame is remote. - Remove pr_debug() call from bxcan_rmw(). 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. - Remove a blank line. - Fix sparse errors. - Create a MAINTAINERS entry. - Remove the print of the registers address. - Remove the volatile keyword from bxcan_rmw(). - Use tx ring algorithm to manage tx mailboxes. - Use can_{get|put}_echo_skb(). - Update DT properties. Dario Binacchi (5): dt-bindings: arm: stm32: add compatible for syscon gcan node dt-bindings: net: can: add STM32 bxcan DT bindings ARM: dts: stm32: add CAN support on stm32f429 ARM: dts: stm32: add pin map for CAN controller on stm32f4 can: bxcan: add support for ST bxCAN controller .../bindings/arm/stm32/st,stm32-syscon.yaml | 2 + .../bindings/net/can/st,stm32-bxcan.yaml | 85 ++ MAINTAINERS | 7 + arch/arm/boot/dts/stm32f4-pinctrl.dtsi | 30 + arch/arm/boot/dts/stm32f429.dtsi | 29 + drivers/net/can/Kconfig | 12 + drivers/net/can/Makefile | 1 + drivers/net/can/bxcan.c | 1098 +++++++++++++++++ 8 files changed, 1264 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/can/st,stm32-bxcan.yaml create mode 100644 drivers/net/can/bxcan.c -- 2.32.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel