From patchwork Tue Dec 1 08:54:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 335831 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=ham 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 4336FC71156 for ; Tue, 1 Dec 2020 09:14:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD6F722210 for ; Tue, 1 Dec 2020 09:14:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="XMcwoAJo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390315AbgLAJO3 (ORCPT ); Tue, 1 Dec 2020 04:14:29 -0500 Received: from mail.kernel.org ([198.145.29.99]:52880 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390236AbgLAJOQ (ORCPT ); Tue, 1 Dec 2020 04:14:16 -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 A38F3206CA; Tue, 1 Dec 2020 09:13:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1606814016; bh=QqlQ6Sgkx1P3HyqjJ6RMdu9lyjZDCdJz5lmc1xAzmAw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XMcwoAJotNWFJiWyIaM7zY0S0tnU3yodJbKiGfbA0rsowDHFPTTsxnvjtErpk9RMT 9OPzF8qF2lVdO/AQy91vRNegY5MO69M37XLIvx7Xwru77kRIDxeWNkEmJq2eidNDDV E8EUi1OitafQ2smyZ8r68I7hxhAKO1TEjcK86VDo= 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 5.9 137/152] can: m_can: fix nominal bitiming tseg2 min for version >= 3.1 Date: Tue, 1 Dec 2020 09:54:12 +0100 Message-Id: <20201201084729.776972198@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201201084711.707195422@linuxfoundation.org> References: <20201201084711.707195422@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@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 c62439bdee28c..d4030abad935d 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -1033,7 +1033,7 @@ 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,