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=-16.8 required=3.0 tests=BAYES_00, 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 CC460C2D0E4 for ; Tue, 24 Nov 2020 19:08:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6CBEC2063A for ; Tue, 24 Nov 2020 19:08:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390880AbgKXTH5 (ORCPT ); Tue, 24 Nov 2020 14:07:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58258 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390969AbgKXTH4 (ORCPT ); Tue, 24 Nov 2020 14:07:56 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 83FABC0613D6 for ; Tue, 24 Nov 2020 11:07:56 -0800 (PST) Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=bjornoya.blackshift.org) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1khdfO-0006QA-Vx for linux-can@vger.kernel.org; Tue, 24 Nov 2020 20:07:55 +0100 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id BEB1559AFD3 for ; Tue, 24 Nov 2020 19:07:53 +0000 (UTC) Received: from hardanger.blackshift.org (unknown [172.20.34.65]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by bjornoya.blackshift.org (Postfix) with ESMTPS id 50AF359AFCD; Tue, 24 Nov 2020 19:07:53 +0000 (UTC) Received: from blackshift.org (localhost [::1]) by hardanger.blackshift.org (OpenSMTPD) with ESMTP id cbe14e46; Tue, 24 Nov 2020 19:07:52 +0000 (UTC) From: Marc Kleine-Budde To: linux-can@vger.kernel.org Cc: Marc Kleine-Budde , Dan Murphy , Sriram Dash , Mario Huettel , Quentin Schulz Subject: [net] can: m_can: fix nominal bitiming tseg2 min for version >= 3.1 Date: Tue, 24 Nov 2020 20:07:51 +0100 Message-Id: <20201124190751.3972238-1-mkl@pengutronix.de> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-can@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org 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: Sriram Dash Cc: Mario Huettel Cc: Quentin Schulz Fixes: b03cfc5bb0e1 ("can: m_can: Enable M_CAN version dependent initialization") Signed-off-by: Marc Kleine-Budde --- 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 f3fc37e96b08..86bbbfa2d743 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, -- 2.29.2