From patchwork Tue Sep 3 09:22:02 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: 13788419 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 BA28ACD13CF for ; Tue, 3 Sep 2024 09:39:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type: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=C1zp+dZTVkaGUUkUyyqKanKhQTtbCI+i+Xrs6Ot7c4o=; b=5BeAVfVWggsQNhdOtR3ktzXAs+ cm2RqdHqhVNZYawcmgBu5mMCp4RRGrK9Fg8VHvH+3qy7DDL6sfDBKWHLB1ZshMH8eRTe+Eb/3D9pp 6lc9lZtsQ4B4YXnAI6Gg3OaSV2Hu06duA82YCxTA0ZS4hlEnOBlG3Y1EFFrCKBqUGMUhiM/NX0xW5 V5bVN9i8lBlZEHjco/Yn2UNcyAXFH2upwDMaH4n9MNN78qQtjGRQ5ldOd9NLvwSihwSJNMkKDeLU8 psikw91+CmXHwMHwJjX1TI8BfhNnj1Ed0IROqBZw+bE5+Iy6ZPsyNoRDEDp1MBHkDA33mxSmskgs8 dmhEsMMw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1slQ04-0000000HCYP-1WaH; Tue, 03 Sep 2024 09:39:00 +0000 Received: from metis.whiteo.stw.pengutronix.de ([185.203.201.7]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1slPkP-0000000H7V0-3ld5 for linux-arm-kernel@lists.infradead.org; Tue, 03 Sep 2024 09:22:52 +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 1slPkM-0000xA-Hd for linux-arm-kernel@lists.infradead.org; Tue, 03 Sep 2024 11:22:46 +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 1slPkG-0059aF-H3 for linux-arm-kernel@lists.infradead.org; Tue, 03 Sep 2024 11:22:40 +0200 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id 3952D3311F2 for ; Tue, 03 Sep 2024 09:22:40 +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 E89D3331058; Tue, 03 Sep 2024 09:22:28 +0000 (UTC) Received: from [172.20.34.65] (localhost [::1]) by hardanger.blackshift.org (OpenSMTPD) with ESMTP id 0e0f9e38; Tue, 3 Sep 2024 09:22:26 +0000 (UTC) From: Marc Kleine-Budde Date: Tue, 03 Sep 2024 11:22:02 +0200 Subject: [PATCH can-next v4 20/20] can: rockchip_canfd: add support for CAN_CTRLMODE_BERR_REPORTING MIME-Version: 1.0 Message-Id: <20240903-rockchip-canfd-v4-20-1dc3f3f32856@pengutronix.de> References: <20240903-rockchip-canfd-v4-0-1dc3f3f32856@pengutronix.de> In-Reply-To: <20240903-rockchip-canfd-v4-0-1dc3f3f32856@pengutronix.de> To: kernel@pengutronix.de, Alibek Omarov , 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: Simon Horman , 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-99b12 X-Developer-Signature: v=1; a=openpgp-sha256; l=2401; i=mkl@pengutronix.de; h=from:subject:message-id; bh=xBf38Ut6AgnO7QgvTyCBnMcJKvzVlajQK72PcBHWEdY=; b=owEBbQGS/pANAwAKASg4oj56LbxvAcsmYgBm1tVQiQp+j+OqiA0mt4Iexhlt5/BQlDfLganII aOyMjPsFWOJATMEAAEKAB0WIQRQQLqG4LYE3Sm8Pl8oOKI+ei28bwUCZtbVUAAKCRAoOKI+ei28 b0VNB/9lOlxzq6+lE9hwe+k5Np+JDGTU1Dhp5cfdd4BHExiHW79kau2NtxoLIVUylw0CF+mJ4C/ cY5taheVh2jHD78mCV0MoefwClLkFGMa4k1htACx6b3KQFi35es/2VgSxpka/pyatGKC64KC3xz QocNDmvOhm3EAjJ0JLXM+jPONXhYIVDe093EugcSM7nfCwkcG3J/hlvP9w/GcAHv7mb76Tq9kLM tgQkYMMHut8lqk8mEVmokynS/XuXcoq0W3nQ/Gy4J4l0m/bzXGLrsq73FNZCVVwRqFTf/3F3pQP A6LkOR8uKpavMT5Lw/IxC75V8LP99l2L9V3B5W9d72EAQh8B 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-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240903_022250_249340_5B371766 X-CRM114-Status: GOOD ( 18.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add support for Bus Error Reporting. Tested-by: Alibek Omarov 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 8853f6a135da..6883153e8fc1 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); @@ -899,7 +907,8 @@ 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;