From patchwork Mon Jul 29 13:05:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Kleine-Budde X-Patchwork-Id: 13744930 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 202B5C3DA4A for ; Mon, 29 Jul 2024 13:16:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=4cTN/6GmXDDssh02omt8QL85mZcB5qTu8fGL2KDdGcg=; b=W9jfl4kaX2Rjwa xO7Ex66QTQuGeebPvENlSb6detCNBbT66kv/Iki5EQVeh9QNgOJX6PBM+LZ0tQ4S45eCDfEvAccAe j7PzhpQUyIxdCi0+TcSHAGxGoqlLDuafuESqJVLmO46cZ4W8nOi20HYEsN/VT0WFjbjzLL6zAUMpM U8uyjhw5p9WxNO8jzUaypYkDZQ/YH5LM1bZ7KS6nJw8D0AfUHL+gJ+gPGQEFp2VfJAacNGG3u2isO k9mNNob9hYOT63Wv/EOKWKrkBbCCgG9uTuwWM3xbMCA0T4bZRmXknJaYfn/7YFJzz4hua20IbaEf3 PXkLIrauULoaSoSCSDuw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sYQEw-0000000BOwR-40E0; Mon, 29 Jul 2024 13:16:38 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sYQ63-0000000BLTs-2O48 for linux-rockchip@lists.infradead.org; Mon, 29 Jul 2024 13:07:29 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1sYQ61-00018B-GZ for linux-rockchip@lists.infradead.org; Mon, 29 Jul 2024 15:07:25 +0200 Received: from [2a0a:edc0:0:b01:1d::7b] (helo=bjornoya.blackshift.org) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1sYQ60-0033NR-EJ for linux-rockchip@lists.infradead.org; Mon, 29 Jul 2024 15:07:24 +0200 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id 22B32310F43 for ; Mon, 29 Jul 2024 13:07:24 +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 X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by bjornoya.blackshift.org (Postfix) with ESMTPS id B22A5310EAB; Mon, 29 Jul 2024 13:07:15 +0000 (UTC) Received: from [172.20.34.65] (localhost [::1]) by hardanger.blackshift.org (OpenSMTPD) with ESMTP id 0ecf2821; Mon, 29 Jul 2024 13:06:31 +0000 (UTC) From: Marc Kleine-Budde Date: Mon, 29 Jul 2024 15:05:52 +0200 Subject: [PATCH can-next 21/21] can: rockchip_canfd: add support for CAN_CTRLMODE_BERR_REPORTING MIME-Version: 1.0 Message-Id: <20240729-rockchip-canfd-v1-21-fa1250fd6be3@pengutronix.de> References: <20240729-rockchip-canfd-v1-0-fa1250fd6be3@pengutronix.de> In-Reply-To: <20240729-rockchip-canfd-v1-0-fa1250fd6be3@pengutronix.de> To: kernel@pengutronix.de, Vincent Mailhol , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Philipp Zabel , Elaine Zhang , David Jander Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Marc Kleine-Budde X-Mailer: b4 0.15-dev-37811 X-Developer-Signature: v=1; a=openpgp-sha256; l=2351; i=mkl@pengutronix.de; h=from:subject:message-id; bh=O7o30P7hShu1XtTUvch+nVWHTD4AhV6r3e4zx/idkYk=; b=owEBbQGS/pANAwAKASg4oj56LbxvAcsmYgBmp5PV3sM8XXwISbRrCXTRd3/WF66LzSY+ThFzv 91v381LmIyJATMEAAEKAB0WIQRQQLqG4LYE3Sm8Pl8oOKI+ei28bwUCZqeT1QAKCRAoOKI+ei28 bz6kB/0e0fjGnXKDinEzWEnti0xrTb1g2WSP5u6CPX4kQo5ADTXqMBkBmFIEKKcOYS5J97xCNRP u2gZ3o8d0Q5+smqeLMe5FfOFyZFjZnaBAX665joolosCxTreNJNrXsOtgxLOhweEwspf+hdVyMW /kNHClCLseJu+tvUPGi8D986D1wjcLMwqAj8IC7pyBT9dwI0Zxsk4UXI3yC154VURUFgYcxwV0Q /2GD+6O4987GAdneE92aO7JPsVq1PnmweFbHiI5mw82PPDG0J+2dr5sttFr9xv1aXWywpqo8mpm FSE7ZD/l5S0V2w4F4y8Ddtu5PWJk06lf6xfsPU0vD9BzzBSE X-Developer-Key: i=mkl@pengutronix.de; a=openpgp; fpr=C1400BA0B3989E6FBC7D5B5C2B5EE211C58AEA54 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-rockchip@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240729_060727_806140_B6BFD323 X-CRM114-Status: GOOD ( 16.11 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Add support for Bus Error Reporting. Signed-off-by: Marc Kleine-Budde --- drivers/net/can/rockchip/rockchip_canfd-core.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/drivers/net/can/rockchip/rockchip_canfd-core.c b/drivers/net/can/rockchip/rockchip_canfd-core.c index 2d6eca8d23be..6daaee7dfe56 100644 --- a/drivers/net/can/rockchip/rockchip_canfd-core.c +++ b/drivers/net/can/rockchip/rockchip_canfd-core.c @@ -293,6 +293,12 @@ static void rkcanfd_chip_start(struct rkcanfd_priv *priv) RKCANFD_REG_INT_OVERLOAD_INT | RKCANFD_REG_INT_TX_FINISH_INT; + /* Do not mask the bus error interrupt if the bus error + * reporting is requested. + */ + if (!(priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)) + priv->reg_int_mask_default |= RKCANFD_REG_INT_ERROR_INT; + memset(&priv->bec, 0x0, sizeof(priv->bec)); rkcanfd_chip_fifo_setup(priv); @@ -533,14 +539,16 @@ static int rkcanfd_handle_error_int(struct rkcanfd_priv *priv) if (!reg_ec) return 0; - skb = rkcanfd_alloc_can_err_skb(priv, &cf, ×tamp); - if (cf) { - struct can_berr_counter bec; + if (priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING) { + skb = rkcanfd_alloc_can_err_skb(priv, &cf, ×tamp); + if (cf) { + struct can_berr_counter bec; - rkcanfd_get_berr_counter_corrected(priv, &bec); - cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR | CAN_ERR_CNT; - cf->data[6] = bec.txerr; - cf->data[7] = bec.rxerr; + rkcanfd_get_berr_counter_corrected(priv, &bec); + cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR | CAN_ERR_CNT; + cf->data[6] = bec.txerr; + cf->data[7] = bec.rxerr; + } } rkcanfd_handle_error_int_reg_ec(priv, cf, reg_ec); @@ -902,7 +910,8 @@ static int rkcanfd_probe(struct platform_device *pdev) priv->can.clock.freq = clk_get_rate(priv->clks[0].clk); priv->can.bittiming_const = &rkcanfd_bittiming_const; priv->can.data_bittiming_const = &rkcanfd_data_bittiming_const; - priv->can.ctrlmode_supported = CAN_CTRLMODE_LOOPBACK; + priv->can.ctrlmode_supported = CAN_CTRLMODE_LOOPBACK | + CAN_CTRLMODE_BERR_REPORTING; if (!(priv->devtype_data.quirks & RKCANFD_QUIRK_CANFD_BROKEN)) priv->can.ctrlmode_supported |= CAN_CTRLMODE_FD; priv->can.do_set_mode = rkcanfd_set_mode;