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([2a0d:3344:2717:8910:b663:3b86:247e:dba2]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-454cd2e7e89sm18221965e9.0.2025.07.08.03.06.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Jul 2025 03:06:59 -0700 (PDT) Message-ID: Date: Tue, 8 Jul 2025 12:06:45 +0200 Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [net-next v14 04/12] net: mtip: The L2 switch driver for imx287 To: Lukasz Majewski , Andrew Lunn , davem@davemloft.net, Eric Dumazet , Jakub Kicinski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo Cc: Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Richard Cochran , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Stefan Wahren , Simon Horman , Andrew Lunn References: <20250701114957.2492486-1-lukma@denx.de> <20250701114957.2492486-5-lukma@denx.de> From: Paolo Abeni In-Reply-To: <20250701114957.2492486-5-lukma@denx.de> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: F4k8rLZJ3xzJJ47tHaX1LHHCB1mqaKStyrfqtg0zF4I_1751969221 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 7/1/25 1:49 PM, Lukasz Majewski wrote: > +static int mtip_sw_probe(struct platform_device *pdev) > +{ > + struct device_node *np = pdev->dev.of_node; > + const struct mtip_devinfo *dev_info; > + struct switch_enet_private *fep; > + int ret; > + > + fep = devm_kzalloc(&pdev->dev, sizeof(*fep), GFP_KERNEL); > + if (!fep) > + return -ENOMEM; > + > + dev_info = of_device_get_match_data(&pdev->dev); > + if (dev_info) > + fep->quirks = dev_info->quirks; > + > + fep->pdev = pdev; > + platform_set_drvdata(pdev, fep); > + > + fep->enet_addr = devm_platform_ioremap_resource(pdev, 0); > + if (IS_ERR(fep->enet_addr)) > + return PTR_ERR(fep->enet_addr); > + > + fep->irq = platform_get_irq_byname(pdev, "enet_switch"); > + if (fep->irq < 0) > + return fep->irq; > + > + ret = mtip_parse_of(fep, np); > + if (ret < 0) > + return dev_err_probe(&pdev->dev, ret, > + "OF parse error\n"); > + > + /* Create an Ethernet device instance. > + * The switch lookup address memory starts at 0x800FC000 > + */ > + fep->hwp_enet = fep->enet_addr; > + fep->hwp = fep->enet_addr + ENET_SWI_PHYS_ADDR_OFFSET; > + fep->hwentry = (struct mtip_addr_table __iomem *) > + (fep->hwp + MCF_ESW_LOOKUP_MEM_OFFSET); > + > + ret = devm_regulator_get_enable_optional(&pdev->dev, "phy"); > + if (ret) > + return dev_err_probe(&pdev->dev, ret, > + "Unable to get and enable 'phy'\n"); > + > + fep->clk_ipg = devm_clk_get_enabled(&pdev->dev, "ipg"); > + if (IS_ERR(fep->clk_ipg)) > + return dev_err_probe(&pdev->dev, PTR_ERR(fep->clk_ipg), > + "Unable to acquire 'ipg' clock\n"); > + > + fep->clk_ahb = devm_clk_get_enabled(&pdev->dev, "ahb"); > + if (IS_ERR(fep->clk_ahb)) > + return dev_err_probe(&pdev->dev, PTR_ERR(fep->clk_ahb), > + "Unable to acquire 'ahb' clock\n"); > + > + fep->clk_enet_out = devm_clk_get_optional_enabled(&pdev->dev, > + "enet_out"); > + if (IS_ERR(fep->clk_enet_out)) > + return dev_err_probe(&pdev->dev, PTR_ERR(fep->clk_enet_out), > + "Unable to acquire 'enet_out' clock\n"); > + > + /* setup MII interface for external switch ports */ > + mtip_enet_init(fep, 1); > + mtip_enet_init(fep, 2); > + > + spin_lock_init(&fep->learn_lock); > + spin_lock_init(&fep->hw_lock); > + spin_lock_init(&fep->mii_lock); `mii_lock` is apparently unused in the whole series. /P