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Miller" , Eric Dumazet , "Jakub Kicinski" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , Alexandre Torgue , "Jose Abreu" , Maxime Coquelin , , , , , , Prasad Sodagudi , Andrew Halaney , Rob Herring CC: Subject: [PATCH net-next v8 1/3] dt-bindings: net: qcom,ethqos: add binding doc for safety IRQ for sa8775p Date: Thu, 21 Dec 2023 13:06:18 +0530 Message-ID: <20231221073620.232619-2-quic_jsuraj@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231221073620.232619-1-quic_jsuraj@quicinc.com> References: <20231221073620.232619-1-quic_jsuraj@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: JNCApaBVEbEB-d0Ta6F3YlPDZCecfaN6 X-Proofpoint-GUID: JNCApaBVEbEB-d0Ta6F3YlPDZCecfaN6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_01,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 lowpriorityscore=0 bulkscore=0 adultscore=0 mlxscore=0 mlxlogscore=999 phishscore=0 clxscore=1015 suspectscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2312210054 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785876275744841782 X-GMAIL-MSGID: 1785876275744841782 Add binding doc for safety IRQ. The safety IRQ will be triggered for ECC(error correction code), DPP(data path parity), FSM(finite state machine) error. Signed-off-by: Suraj Jaiswal Reviewed-by: Rob Herring --- Documentation/devicetree/bindings/net/qcom,ethqos.yaml | 9 ++++++--- Documentation/devicetree/bindings/net/snps,dwmac.yaml | 6 ++++-- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/net/qcom,ethqos.yaml b/Documentation/devicetree/bindings/net/qcom,ethqos.yaml index 7bdb412a0185..69a337c7e345 100644 --- a/Documentation/devicetree/bindings/net/qcom,ethqos.yaml +++ b/Documentation/devicetree/bindings/net/qcom,ethqos.yaml @@ -37,12 +37,14 @@ properties: items: - description: Combined signal for various interrupt events - description: The interrupt that occurs when Rx exits the LPI state + - description: The interrupt that occurs when HW safety error triggered interrupt-names: minItems: 1 items: - const: macirq - - const: eth_lpi + - enum: [eth_lpi, sfty] + - const: sfty clocks: maxItems: 4 @@ -89,8 +91,9 @@ examples: <&gcc GCC_ETH_PTP_CLK>, <&gcc GCC_ETH_RGMII_CLK>; interrupts = , - ; - interrupt-names = "macirq", "eth_lpi"; + , + ; + interrupt-names = "macirq", "eth_lpi", "sfty"; rx-fifo-depth = <4096>; tx-fifo-depth = <4096>; diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml index 5c2769dc689a..9b04e2ed7c18 100644 --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml @@ -107,13 +107,15 @@ properties: - description: Combined signal for various interrupt events - description: The interrupt to manage the remote wake-up packet detection - description: The interrupt that occurs when Rx exits the LPI state + - description: The interrupt that occurs when HW safety error triggered interrupt-names: minItems: 1 items: - const: macirq - - enum: [eth_wake_irq, eth_lpi] - - const: eth_lpi + - enum: [eth_wake_irq, eth_lpi, sfty] + - enum: [eth_wake_irq, eth_lpi, sfty] + - enum: [eth_wake_irq, eth_lpi, sfty] clocks: minItems: 1 From patchwork Thu Dec 21 07:36:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suraj Jaiswal X-Patchwork-Id: 182035 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:2483:b0:fb:cd0c:d3e with SMTP id q3csp247227dyi; Wed, 20 Dec 2023 23:39:16 -0800 (PST) X-Google-Smtp-Source: AGHT+IG+xegeVBz42yUodi2klH/RV6BbbARttaqr6FITfQPQReLOVEeKX30ByyMRK90nfQqZbPSV X-Received: by 2002:a05:6a00:3a19:b0:6b2:baa0:6d4c with SMTP id fj25-20020a056a003a1900b006b2baa06d4cmr12533145pfb.33.1703144356036; Wed, 20 Dec 2023 23:39:16 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1703144356; cv=none; d=google.com; s=arc-20160816; b=T1vbNaH02QOEW7ayJFeR1h+Ra0CVrhz8FGiJCNXHoymvG2jAPxg0qsP+N+Beeop4TF HxfqdX/6YQrB/zJieZgp9MPeRsfjeDbJeEbCgD8iHmxxkWNzq/FGmg0bsgDXhPL7aHov bKnXtOGGSyZe+OCE+VlXH/Nz0qcee/YE1jzyz7lwXZjXPNqEyInJSigPpuksjpqfrw5x bbZNmWLFp7/qsipqNmTZUmJmcWNQTU9+nUfX164dlTJDl1nULMHxn1rqmNs1JaOerP10 oeYfY6pzhg1qBYYMD7niCib7EjQFQ8A0ku5dLULIladt5HxB9wKg8V1yAwNebRxVKtQe ZEJg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=TfqR6JKafu34tfx0jZ0jFDiYXMECziyEP7kmMeKNiTk=; fh=AO1athPla3jqhCn4k6adBHi7gs3A5EcpzQmM6u71SYU=; b=g3FKhpj56vF/G+KB46rhG4oLNPPJvkD3M5F9Jp3Wwbro3RTBMgza8hB/a0zGblQJDB hOXF+OTPeiL5XmfllbK50LaZFhCrdosyCoegRfqAx8nL9H4I3azgrPUMl2n6RuC7tOyX dlUDt0K5YOBR9o+98bNCmOZWweJWCFyGmBQRtxHBnNTM0wFv0b3A/+oJfXodv7QHmuWq ama2Kda2vOJrlggzy8vcoqc0gvCuNEqwFfCym4rFXlFfV3BmX2NOyg3SXh22izceE5/h y+Mf0JVac3UJvAtKVDuNdtqqoAJieuzkjePKJaz7Pn6ePZqEaEcz2d2lPG9OlGwF6Oy8 TiBA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@quicinc.com header.s=qcppdkim1 header.b=n+4DlvDP; spf=pass (google.com: domain of linux-kernel+bounces-7947-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-7947-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=quicinc.com Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. 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Miller" , Eric Dumazet , "Jakub Kicinski" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , Alexandre Torgue , "Jose Abreu" , Maxime Coquelin , , , , , , Prasad Sodagudi , Andrew Halaney , Rob Herring CC: Subject: [PATCH net-next v8 2/3] arm64: dts: qcom: sa8775p: enable safety IRQ Date: Thu, 21 Dec 2023 13:06:19 +0530 Message-ID: <20231221073620.232619-3-quic_jsuraj@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231221073620.232619-1-quic_jsuraj@quicinc.com> References: <20231221073620.232619-1-quic_jsuraj@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: rAXIZeABrT0mD_r1o_QroXqP-CdI8PEj X-Proofpoint-GUID: rAXIZeABrT0mD_r1o_QroXqP-CdI8PEj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_01,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 lowpriorityscore=0 bulkscore=0 adultscore=0 mlxscore=0 mlxlogscore=694 phishscore=0 clxscore=1015 suspectscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2312210054 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785876296117735727 X-GMAIL-MSGID: 1785876296117735727 Add changes to support safety IRQ handling support for ethernet. Signed-off-by: Suraj Jaiswal Reviewed-by: Konrad Dybcio --- arch/arm64/boot/dts/qcom/sa8775p.dtsi | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi index a7eaca33d326..f3645c3f96a1 100644 --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi @@ -2394,8 +2394,9 @@ ethernet1: ethernet@23000000 { <0x0 0x23016000 0x0 0x100>; reg-names = "stmmaceth", "rgmii"; - interrupts = ; - interrupt-names = "macirq"; + interrupts = , + ; + interrupt-names = "macirq", "sfty"; clocks = <&gcc GCC_EMAC1_AXI_CLK>, <&gcc GCC_EMAC1_SLV_AHB_CLK>, @@ -2427,8 +2428,9 @@ ethernet0: ethernet@23040000 { <0x0 0x23056000 0x0 0x100>; reg-names = "stmmaceth", "rgmii"; - interrupts = ; - interrupt-names = "macirq"; + interrupts = , + ; + interrupt-names = "macirq", "sfty"; clocks = <&gcc GCC_EMAC0_AXI_CLK>, <&gcc GCC_EMAC0_SLV_AHB_CLK>, From patchwork Thu Dec 21 07:36:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suraj Jaiswal X-Patchwork-Id: 182036 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:2483:b0:fb:cd0c:d3e with SMTP id q3csp247281dyi; Wed, 20 Dec 2023 23:39:27 -0800 (PST) X-Google-Smtp-Source: AGHT+IERNFKrPa2YNc9fN+3e7X2oG3zbJzZZ/xcqrkJHwkTbbHdZ6XwuimIKyMnNbTD3TPCpcgOl X-Received: by 2002:ac8:5aca:0:b0:425:4043:7624 with SMTP id d10-20020ac85aca000000b0042540437624mr31517133qtd.76.1703144367315; Wed, 20 Dec 2023 23:39:27 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1703144367; cv=none; d=google.com; s=arc-20160816; b=i5ranA3M5sZ5uBwtKY9i/aADn7y6++yRquU2afpCbtgvmbIT+k8k6sZPWh0I/C0eku SE9qxrj70kbjx8LqTTdf6RH+fGjtGUiSeBRveZhvYaj3POJBxpJooHbcFbGJJSKDUuO/ Bz9voLDGlKLsUvOLunbiRwWfZ+newt+NG55UWZXsesiH1UopXriRRN/4gBR00hgief3o z0muQ7ykA24OPnPgY3nl7gnpqERNOYX2b+qNa4wT0ZfeZPo6F/OG4116MCwpc6PdgIBm EjY1NlV9IZINacA6cZUG6Q+s7iKeFqHUVngQ7k+lRJT8zT/OflcN6gUWmuipePSpm4U1 zJ4w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=Aw5IXxKxB6UTeXq5hAKRDppd7vH7no1ce2NFpPs0Ceg=; fh=AO1athPla3jqhCn4k6adBHi7gs3A5EcpzQmM6u71SYU=; b=lxG9hPV7BFmdqTTFBvB37ANPvv8FdVaBKAFbmptSxIVKFN0fAjBLTKTKOaHrQbBO8G ZkMVh9U7iD8QKEeuDL/c/3gEml5DoGql0sH1hPgUpfqhqV+Bfi2dTCmBZcw/hvt/+j0k XqxHcfAzt2IkNcNyzZr6nzJefYuuyx6mxV6mx5E7o95ajavEhPdUjMAm4gQ+QcUO6FZg sTomQN2Y/Vz7/N8zU94kSsXtmhjvdO0bVLCrcAEXEcNqShUky1kkV03REy8dsIPS34TN Dt6WHVN3Fogeznrv0R9iqWAjX6yhW3K2W2lK1Z7+g2NdN2aOWKp1A+Qrs+eTUHcY3RT0 QGmw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@quicinc.com header.s=qcppdkim1 header.b=UyJzTwHu; spf=pass (google.com: domain of linux-kernel+bounces-7948-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-7948-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=quicinc.com Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org. 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Miller" , Eric Dumazet , "Jakub Kicinski" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , Alexandre Torgue , "Jose Abreu" , Maxime Coquelin , , , , , , Prasad Sodagudi , Andrew Halaney , Rob Herring CC: Subject: [PATCH net-next v8 3/3] net: stmmac: Add driver support for DWMAC5 common safety IRQ Date: Thu, 21 Dec 2023 13:06:20 +0530 Message-ID: <20231221073620.232619-4-quic_jsuraj@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231221073620.232619-1-quic_jsuraj@quicinc.com> References: <20231221073620.232619-1-quic_jsuraj@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: 3eSIG19-8P1kxmAOxJlGkDHFmkovLLLY X-Proofpoint-GUID: 3eSIG19-8P1kxmAOxJlGkDHFmkovLLLY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_01,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 mlxscore=0 malwarescore=0 mlxlogscore=999 clxscore=1015 priorityscore=1501 adultscore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2312210054 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785876308187553391 X-GMAIL-MSGID: 1785876308187553391 Add support to listen HW safety IRQ like ECC(error correction code), DPP(data path parity), FSM(finite state machine) fault in common IRQ line. Signed-off-by: Suraj Jaiswal --- drivers/net/ethernet/stmicro/stmmac/common.h | 1 + drivers/net/ethernet/stmicro/stmmac/stmmac.h | 3 ++ .../net/ethernet/stmicro/stmmac/stmmac_main.c | 37 +++++++++++++++++++ .../ethernet/stmicro/stmmac/stmmac_platform.c | 8 ++++ 4 files changed, 49 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 721c1f8e892f..b9233b09b80f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -344,6 +344,7 @@ enum request_irq_err { REQ_IRQ_ERR_ALL, REQ_IRQ_ERR_TX, REQ_IRQ_ERR_RX, + REQ_IRQ_ERR_SFTY, REQ_IRQ_ERR_SFTY_UE, REQ_IRQ_ERR_SFTY_CE, REQ_IRQ_ERR_LPI, diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 9f89acf31050..ca3d93851bed 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -31,6 +31,7 @@ struct stmmac_resources { int wol_irq; int lpi_irq; int irq; + int sfty_irq; int sfty_ce_irq; int sfty_ue_irq; int rx_irq[MTL_MAX_RX_QUEUES]; @@ -297,6 +298,7 @@ struct stmmac_priv { void __iomem *ptpaddr; void __iomem *estaddr; unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + int sfty_irq; int sfty_ce_irq; int sfty_ue_irq; int rx_irq[MTL_MAX_RX_QUEUES]; @@ -305,6 +307,7 @@ struct stmmac_priv { char int_name_mac[IFNAMSIZ + 9]; char int_name_wol[IFNAMSIZ + 9]; char int_name_lpi[IFNAMSIZ + 9]; + char int_name_sfty[IFNAMSIZ + 10]; char int_name_sfty_ce[IFNAMSIZ + 10]; char int_name_sfty_ue[IFNAMSIZ + 10]; char int_name_rx_irq[MTL_MAX_TX_QUEUES][IFNAMSIZ + 14]; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 47de466e432c..7d4e827dfeab 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -3592,6 +3592,10 @@ static void stmmac_free_irq(struct net_device *dev, if (priv->wol_irq > 0 && priv->wol_irq != dev->irq) free_irq(priv->wol_irq, dev); fallthrough; + case REQ_IRQ_ERR_SFTY: + if (priv->sfty_irq > 0 && priv->sfty_irq != dev->irq) + free_irq(priv->sfty_irq, dev); + fallthrough; case REQ_IRQ_ERR_WOL: free_irq(dev->irq, dev); fallthrough; @@ -3661,6 +3665,23 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev) } } + /* Request the common Safety Feature Correctible/Uncorrectible + * Error line in case of another line is used + */ + if (priv->sfty_irq > 0 && priv->sfty_irq != dev->irq) { + int_name = priv->int_name_sfty; + sprintf(int_name, "%s:%s", dev->name, "safety"); + ret = request_irq(priv->sfty_irq, stmmac_safety_interrupt, + 0, int_name, dev); + if (unlikely(ret < 0)) { + netdev_err(priv->dev, + "%s: alloc sfty MSI %d (error: %d)\n", + __func__, priv->sfty_irq, ret); + irq_err = REQ_IRQ_ERR_SFTY; + goto irq_error; + } + } + /* Request the Safety Feature Correctible Error line in * case of another line is used */ @@ -3798,6 +3819,21 @@ static int stmmac_request_irq_single(struct net_device *dev) } } + /* Request the common Safety Feature Correctible/Uncorrectible + * Error line in case of another line is used + */ + if (priv->sfty_irq > 0 && priv->sfty_irq != dev->irq) { + ret = request_irq(priv->sfty_irq, stmmac_safety_interrupt, + IRQF_SHARED, dev->name, dev); + if (unlikely(ret < 0)) { + netdev_err(priv->dev, + "%s: ERROR: allocating the sfty IRQ %d (%d)\n", + __func__, priv->sfty_irq, ret); + irq_err = REQ_IRQ_ERR_SFTY; + goto irq_error; + } + } + return 0; irq_error: @@ -7462,6 +7498,7 @@ int stmmac_dvr_probe(struct device *device, priv->dev->irq = res->irq; priv->wol_irq = res->wol_irq; priv->lpi_irq = res->lpi_irq; + priv->sfty_irq = res->sfty_irq; priv->sfty_ce_irq = res->sfty_ce_irq; priv->sfty_ue_irq = res->sfty_ue_irq; for (i = 0; i < MTL_MAX_RX_QUEUES; i++) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 70eadc83ca68..ab250161fd79 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -743,6 +743,14 @@ int stmmac_get_platform_resources(struct platform_device *pdev, dev_info(&pdev->dev, "IRQ eth_lpi not found\n"); } + stmmac_res->sfty_irq = + platform_get_irq_byname_optional(pdev, "sfty"); + if (stmmac_res->sfty_irq < 0) { + if (stmmac_res->sfty_irq == -EPROBE_DEFER) + return -EPROBE_DEFER; + dev_info(&pdev->dev, "IRQ safety IRQ not found\n"); + } + stmmac_res->addr = devm_platform_ioremap_resource(pdev, 0); return PTR_ERR_OR_ZERO(stmmac_res->addr);