From nobody Tue Dec 16 14:50:59 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 70C6328B4E2; Sun, 14 Dec 2025 22:15:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765750553; cv=none; b=l4UQCEeg+gpiuqo7aznsab+eMTK6haYSCczfLO/WuOtmzkHgtsl5Wxxwbh1vIcpGGccXmFKyR+QQ1eHnXPsVTZnAmEtZf/Jyl0sY6TVyEaCgZwzUIG/TGz4zjH1liebO2vp3HzYvD4zNd+cL01wXxw9X9K4DG3/S/g3HKJ9jeeA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765750553; c=relaxed/simple; bh=P9Q41cO8YGpX3BgJ7Y8X3jIUqm2KQRT2kYjQtm3/tOc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=IWPZBwPWsqm7UyOvnV+CEfPg6+HgD/v/nQcJMiqLdnGPEav7yfxNsUOoEbCm3IRh9miDfBExmiC9bFk3oBEA0/wohisGhlre5mTrXoswvzupvvFDrdAg1sfs66MXHTq9tVaG/KigAG7yvyNgeTvzYUZrqosfOTxkNNn/ZP/YQwk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ob7FlLVW; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ob7FlLVW" Received: by smtp.kernel.org (Postfix) with ESMTPS id 0C82FC19421; Sun, 14 Dec 2025 22:15:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1765750553; bh=P9Q41cO8YGpX3BgJ7Y8X3jIUqm2KQRT2kYjQtm3/tOc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=ob7FlLVW42lzAs7XE5EMKcM7Hr8tK4HNdfHb0+bfaNNZOKxSeKGoE81NeQBiaTdkO puyF6c8JK6gB+Nonw2Y8913Rav1P+ktIMQIBD48tvaH/1OntCcS5i1jc+wQR+36HDB L+xAV3gBAb/lnp7JhtXV6pF3EMUbr3JfLCYqORavCZw00t6q8hGNZe7Edpr39xXJbq F8KEu7pLOSu9aRO0JAfSph3NZOfgd3bc60TZ/A7NSKM5CSYGkXuWWVacE4ZjaQ5rZW gr1Y86sbduprjMEBJv1eDSpcH3r3zM0b9My/ejhmHcQC027IN4jZ6Yv6tnr6H2EtML OlE01NOa2NYOw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC7A3D59D99; Sun, 14 Dec 2025 22:15:52 +0000 (UTC) From: Jan Petrous via B4 Relay Date: Sun, 14 Dec 2025 23:15:37 +0100 Subject: [PATCH RFC 1/4] net: stmmac: platform: read channels irq Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251214-dwmac_multi_irq-v1-1-36562ab0e9f7@oss.nxp.com> References: <20251214-dwmac_multi_irq-v1-0-36562ab0e9f7@oss.nxp.com> In-Reply-To: <20251214-dwmac_multi_irq-v1-0-36562ab0e9f7@oss.nxp.com> To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Chester Lin , Matthias Brugger , Ghennadi Procopciuc , NXP S32 Linux Team , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, devicetree@vger.kernel.org, "Jan Petrous (OSS)" X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1765750551; l=2187; i=jan.petrous@oss.nxp.com; s=20240922; h=from:subject:message-id; bh=Oc39mDasSDPGKH+yBMl8WiteW86TeFvrmazDY9RdtwU=; b=KSth4uonWM5nPcyW2B4cGYpap63loliV1langCG9n8+Pu+jcPnyVcj+IPhvWWbmVyVyc+jnad HY9aaNu+LwtCygDPmmVEIjPyzxgYbviB16ccutG5CbNJY7A9GrLGEko X-Developer-Key: i=jan.petrous@oss.nxp.com; a=ed25519; pk=Ke3wwK7rb2Me9UQRf6vR8AsfJZfhTyoDaxkUCqmSWYY= X-Endpoint-Received: by B4 Relay for jan.petrous@oss.nxp.com/20240922 with auth_id=217 X-Original-From: "Jan Petrous (OSS)" Reply-To: jan.petrous@oss.nxp.com From: "Jan Petrous (OSS)" Read IRQ resources for all channels, to allow multi IRQ mode for platform glue drivers. Signed-off-by: Jan Petrous (OSS) --- .../net/ethernet/stmicro/stmmac/stmmac_platform.c | 38 ++++++++++++++++++= +++- 1 file changed, 37 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/driver= s/net/ethernet/stmicro/stmmac/stmmac_platform.c index 8979a50b5507..29e40253bdfe 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -700,6 +700,9 @@ EXPORT_SYMBOL_GPL(stmmac_pltfr_find_clk); int stmmac_get_platform_resources(struct platform_device *pdev, struct stmmac_resources *stmmac_res) { + int i; + char name[8]; + memset(stmmac_res, 0, sizeof(*stmmac_res)); =20 /* Get IRQ information early to have an ability to ask for deferred @@ -743,7 +746,40 @@ int stmmac_get_platform_resources(struct platform_devi= ce *pdev, =20 stmmac_res->addr =3D devm_platform_ioremap_resource(pdev, 0); =20 - return PTR_ERR_OR_ZERO(stmmac_res->addr); + if (IS_ERR(stmmac_res->addr)) + return PTR_ERR(stmmac_res->addr); + + /* RX channels irq */ + for (i =3D 0; i < MTL_MAX_RX_QUEUES; i++) { + scnprintf(name, 8, "rx-queue-%d", i); + stmmac_res->rx_irq[i] =3D platform_get_irq_byname_optional(pdev, + name); + if (stmmac_res->rx_irq[i] < 0) { + if (stmmac_res->rx_irq[i] =3D=3D -EPROBE_DEFER) + return -EPROBE_DEFER; + dev_dbg(&pdev->dev, "IRQ rx-queue-%d not found\n", i); + + /* Stop on first unset rx-queue-%i property member */ + break; + } + } + + /* TX channels irq */ + for (i =3D 0; i < MTL_MAX_TX_QUEUES; i++) { + scnprintf(name, 8, "tx-queue-%d", i); + stmmac_res->tx_irq[i] =3D platform_get_irq_byname_optional(pdev, + name); + if (stmmac_res->tx_irq[i] < 0) { + if (stmmac_res->tx_irq[i] =3D=3D -EPROBE_DEFER) + return -EPROBE_DEFER; + dev_dbg(&pdev->dev, "IRQ tx-queue-%d not found\n", i); + + /* Stop on first unset tx-queue-%i property member */ + break; + } + } + + return 0; } EXPORT_SYMBOL_GPL(stmmac_get_platform_resources); =20 --=20 2.47.0