From patchwork Sat Oct 22 08:15:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13015885 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 07C58FA373D for ; Sat, 22 Oct 2022 10:21:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230321AbiJVKVH (ORCPT ); Sat, 22 Oct 2022 06:21:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230316AbiJVKUi (ORCPT ); Sat, 22 Oct 2022 06:20:38 -0400 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id EDD6E14001; Sat, 22 Oct 2022 02:37:29 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.95,204,1661785200"; d="scan'208";a="137536287" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 22 Oct 2022 17:33:55 +0900 Received: from localhost.localdomain (unknown [10.226.92.14]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 1A33F4006185; Sat, 22 Oct 2022 17:33:49 +0900 (JST) From: Biju Das To: Wolfgang Grandegger , Marc Kleine-Budde , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Biju Das , Vincent Mailhol , =?utf-8?q?Stefan_M=C3=A4tje?= , Lad Prabhakar , Ulrich Hecht , Christophe JAILLET , Rob Herring , linux-can@vger.kernel.org, netdev@vger.kernel.org, Geert Uytterhoeven , Chris Paterson , linux-renesas-soc@vger.kernel.org Subject: [PATCH 0/3] R-Car CANFD fixes Date: Sat, 22 Oct 2022 09:15:00 +0100 Message-Id: <20221022081503.1051257-1-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This patch series fixes the below issues in R-Car CAN FD driver. 1) Race condition in CAN driver under heavy CAN load condition with both channels enabled results in IRQ stom on global fifo receive irq line. 2) Add channel specific tx interrupts handling for RZ/G2L SoC as it has separate IRQ lines for each tx. 3) Remove unnecessary SoC specific checks in probe. Biju Das (3): can: rcar_canfd: Fix IRQ storm on global fifo receive can: rcar_canfd: Fix channel specific IRQ handling for RZ/G2L can: rcar_canfd: Use devm_reset_control_get_optional_exclusive drivers/net/can/rcar/rcar_canfd.c | 50 +++++++++++++++++-------------- 1 file changed, 27 insertions(+), 23 deletions(-)