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 X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8AE8AC64E8A for ; Tue, 1 Dec 2020 09:25:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 14D9B221FF for ; Tue, 1 Dec 2020 09:25:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="W5uk0V+e" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390823AbgLAJYb (ORCPT ); Tue, 1 Dec 2020 04:24:31 -0500 Received: from mail.kernel.org ([198.145.29.99]:42546 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387855AbgLAJGK (ORCPT ); Tue, 1 Dec 2020 04:06:10 -0500 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E294E20671; Tue, 1 Dec 2020 09:05:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1606813549; bh=MJGcRw+qCH6CshT5sWPBdRpx9kibcvm8lmKAFud8M/s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=W5uk0V+ed73M0QeW/ChvP1abtDVUCatcq8Lfk6LeBAOIzYqf2xl5SXWUz4xqjweUJ EynE4PjWkJKNi1wpORDPT9JwpbjJhlsB2mVy4U62UFop3VDsZq0MCNfVoM3ZUbpvf4 mmbITzHOz4YBXIWuGLCG7yYlqGPk2y9YOJdfK87A= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Murphy , Mario Huettel , Sriram Dash , Marc Kleine-Budde , Sasha Levin Subject: [PATCH 5.4 77/98] can: m_can: fix nominal bitiming tseg2 min for version >= 3.1 Date: Tue, 1 Dec 2020 09:53:54 +0100 Message-Id: <20201201084658.824064234@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201201084652.827177826@linuxfoundation.org> References: <20201201084652.827177826@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marc Kleine-Budde [ Upstream commit e3409e4192535fbcc86a84b7a65d9351f46039ec ] At lest the revision 3.3.0 of the bosch m_can IP core specifies that valid register values for "Nominal Time segment after sample point (NTSEG2)" are from 1 to 127. As the hardware uses a value of one more than the programmed value, mean tseg2_min is 2. This patch fixes the tseg2_min value accordingly. Cc: Dan Murphy Cc: Mario Huettel Acked-by: Sriram Dash Link: https://lore.kernel.org/r/20201124190751.3972238-1-mkl@pengutronix.de Fixes: b03cfc5bb0e1 ("can: m_can: Enable M_CAN version dependent initialization") Signed-off-by: Marc Kleine-Budde Signed-off-by: Sasha Levin --- drivers/net/can/m_can/m_can.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index eafdb4441d441..f9a2a9ecbac9e 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -990,7 +990,7 @@ static const struct can_bittiming_const m_can_bittiming_const_31X = { .name = KBUILD_MODNAME, .tseg1_min = 2, /* Time segment 1 = prop_seg + phase_seg1 */ .tseg1_max = 256, - .tseg2_min = 1, /* Time segment 2 = phase_seg2 */ + .tseg2_min = 2, /* Time segment 2 = phase_seg2 */ .tseg2_max = 128, .sjw_max = 128, .brp_min = 1, -- 2.27.0