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 19BD5C43334 for ; Fri, 8 Jul 2022 18:46:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239656AbiGHSqc (ORCPT ); Fri, 8 Jul 2022 14:46:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237887AbiGHSq1 (ORCPT ); Fri, 8 Jul 2022 14:46:27 -0400 Received: from mail-lj1-x236.google.com (mail-lj1-x236.google.com [IPv6:2a00:1450:4864:20::236]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 68A627C196 for ; Fri, 8 Jul 2022 11:46:25 -0700 (PDT) Received: by mail-lj1-x236.google.com with SMTP id s14so26944975ljs.3 for ; Fri, 08 Jul 2022 11:46:25 -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=y3gPXAEkv18xbXKqUBZx3ebsYNTyie97iCVskpJUSUA=; b=qRrDqp/pAbYlShyDBhh1V0jlAiv42A8ea4bAzGqlaow+34AdwboicBl8XvlQ4j5tKl bB9BPhc5COd0G7R1dxZv6Eirzx2lPQmPcZXGC4xqrro58FuIoTJ0up3bv1YMj6AN9Y4/ W0VpkI/tZ/nerRSmKIT+0SaLbIjMYttvY8CjJ1CFYbhpPgEej6m+gTXK49XO64ZfgCKN YQZb6GeT1cijKdzDtGKcZy742M5pdyz+PEUNlVZ9pcFq745QnDpAQ0HWbFsnj7qFupHF BMuML1cgr3F1pDvlLa2b9O+IlTxD9L7wyELa3vtw9lEefeSnvsSkKOtdz+kb8lY8kIBP xI7w== 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=y3gPXAEkv18xbXKqUBZx3ebsYNTyie97iCVskpJUSUA=; b=paBMVWl1h7cqXezFLq3szogu7I3m0vELNT/JQkvWUlNCymKikl9D7OciG08IyZq8AE IqDuzyydMkeYXuX4rt9taq3ewrI3Acyf552Ts/GNrTT6ZrpYF7i4d3bY9dvlwmH+b/CC CEHK18wE1X+Rq/Ggc8u5/r/oMwvx/bZIkyAjEcAjPKtHYJ0eNKnl8jNgIau2qxiXHMxp FdOfNNOjPY6qn/EUPZzuxK5lqQwl5QqBpc7AV846yhyx/Y6+yUQaFrClRxSoj4Ns1gF+ 77vXZJOPtIJ8rI3JkECZM5IYZaDFksRKosUySpZQuaAVzAiouME3xfg7bSO+NwotSL8Z ZzZA== X-Gm-Message-State: AJIora88ddDrZsAku2F4doXe4gl9L4lyznudD4yzgN2RDQZfuTa0EtT7 dfPHRmtx5KUaOC3KAG+rXwyyGA== X-Google-Smtp-Source: AGRyM1smPgtVmmvQJY0zs950fbNLF2zTnIjE+k4suN9Ev8Mb/Hvjym1i64+pzo60/QpDUBqqtIiIpQ== X-Received: by 2002:a2e:91d9:0:b0:25a:6fe6:cc15 with SMTP id u25-20020a2e91d9000000b0025a6fe6cc15mr2660534ljg.187.1657305983763; Fri, 08 Jul 2022 11:46:23 -0700 (PDT) Received: from freke.kvaser.se (rota.kvaser.com. [195.22.86.90]) by smtp.gmail.com with ESMTPSA id 23-20020a2e1557000000b0025d4d4b4edbsm1159917ljv.34.2022.07.08.11.46.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jul 2022 11:46:23 -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 4.9 0/4] can: kvaser_usb: CAN clock frequency regression Date: Fri, 8 Jul 2022 20:45:52 +0200 Message-Id: <20220708184556.280751-1-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 4.9 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