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 21F36CCA47F for ; Fri, 8 Jul 2022 18:47:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239198AbiGHSrL (ORCPT ); Fri, 8 Jul 2022 14:47:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39438 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239678AbiGHSrK (ORCPT ); Fri, 8 Jul 2022 14:47:10 -0400 Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C0D25A2D9 for ; Fri, 8 Jul 2022 11:47:09 -0700 (PDT) Received: by mail-lf1-x12a.google.com with SMTP id f39so37715049lfv.3 for ; Fri, 08 Jul 2022 11:47:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kvaser.com; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=XrpoZ2xyvOYqL5rcerQR2ySTzg49DWdmPhp2IQVVheY=; b=ov/W2AWXNvmw1KRjaj8dEbH0DPybIMCC9m8yMW4LVISBjzwwt5L4wudEzqUpHmWCK4 6BKB4+TfD+wX0XbDHd9oX3o0AqW1zFZ2kJpMBDgAVfrcNu3eyVSNWSGTI1f4ITAQM812 AXCPwpo5Uni11C4QCtU5geNmTQ7g7hXLKVS/lyjtkVOgs4GLgz1qwwaZfz+HkcXW/X1O RMAoVWrd4jg/RDhEa/rHHeYkPZ5EqtIaOCZAHYfHPpthz/9sVFin4BtTdU42+c8jnZ8m sfM1TyIF9iF75IRnQY7wjpvTUT3fk4CZ5CZ0jX+dz94SEfAdIeDrDNDtbTfMYMzjjSps o7QA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=XrpoZ2xyvOYqL5rcerQR2ySTzg49DWdmPhp2IQVVheY=; b=jOFvrFyHNPn50E/UN2ein0LM7f9luGXPyLoyrKibbLDWpa2jwgRNHGlW4SvM2O0LdJ ZRfcbB4zFX95CkcoB2cXnOmrVwZ4r7VfmOyIFdMHE711CG5oOMhz2HPEt4lMb0GegiD/ 9jYIyAb5XV+OKB90/Rxwc67vc7abQX2s7jDLx2S56GMaWshDdPOwZjswFH9kQPm7wUOP l8yNHyZw/+pDRvCR6y5wdh2R0t4ivuZ1WE/+dxsLd4nktLylMYrC6JHMLun/6L/2lnVh dt4Ze1Wjr0+WBkxJ8GSvduWWfNsQSOXxx07p/vV+SW2jdOrQMD/cENqnLU5c4q5FrU4g 9B3g== X-Gm-Message-State: AJIora9NpuaGRQQ/a3PLXgsCMeZi32/gd7pZPKYgpuCn2sUGw5VP1kF8 eB3RfplarIN1sMcIYx29vw40jw== X-Google-Smtp-Source: AGRyM1tqSSNFoyRw8kLPRY8ZIwSO8FpZMiHvXtBXnVlaN4Hhi3jdDfOLzlKRuLSXyEXnVOHgfe7Pww== X-Received: by 2002:a05:6512:39d5:b0:47f:6e9a:5bf with SMTP id k21-20020a05651239d500b0047f6e9a05bfmr3243699lfu.580.1657306027682; Fri, 08 Jul 2022 11:47:07 -0700 (PDT) Received: from freke.kvaser.se (rota.kvaser.com. [195.22.86.90]) by smtp.gmail.com with ESMTPSA id u22-20020a197916000000b0047fa941067fsm7558386lfc.29.2022.07.08.11.47.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jul 2022 11:47:07 -0700 (PDT) From: Jimmy Assarsson To: stable@vger.kernel.org, linux-can@vger.kernel.org, Marc Kleine-Budde Cc: Jimmy Assarsson , Jimmy Assarsson Subject: [PATCH 4.14 0/4] can: kvaser_usb: CAN clock frequency regression Date: Fri, 8 Jul 2022 20:46:49 +0200 Message-Id: <20220708184653.280882-1-extja@kvaser.com> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org Backport of upstream patch series [1]. Note: The patch "[PATCH 4.14 1/4] can: kvaser_usb: Add struct kvaser_usb_dev_cfg" is added for this backport, and was not part of the original series. When fixing the CAN clock frequency, fb12797ab1fe ("can: kvaser_usb: get CAN clock frequency from device"), I introduced a regression. For Leaf devices based on M32C, the firmware expects bittiming parameters calculated for 16MHz clock. Regardless of the actual clock frequency. This regression affects M32C based Leaf devices with non-16MHz clock. Also correct the bittiming constants in kvaser_usb_leaf.c, where the limits are different depending on which firmware/device being used. [1] https://lore.kernel.org/linux-can/20220603083820.800246-1-extja@kvaser.com/ Jimmy Assarsson (4): can: kvaser_usb: Add struct kvaser_usb_dev_cfg can: kvaser_usb: replace run-time checks with struct kvaser_usb_driver_info can: kvaser_usb: fix CAN clock frequency regression can: kvaser_usb: fix bittiming limits drivers/net/can/usb/kvaser_usb.c | 325 +++++++++++++++++++------------ 1 file changed, 201 insertions(+), 124 deletions(-) -- 2.36.1