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[188.155.176.92]) by smtp.gmail.com with ESMTPSA id kv8-20020a17090778c800b0070e1adff390sm4522943ejc.34.2022.06.19.05.15.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 19 Jun 2022 05:15:05 -0700 (PDT) Message-ID: <8a1d7575-1334-e5ab-5228-f75ae67a3d13@linaro.org> Date: Sun, 19 Jun 2022 14:15:03 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 Subject: Re: [PATCH 2/2] phy: freescale: Add i.MX8qm Mixel LVDS PHY support Content-Language: en-US To: Liu Ying , linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: kishon@ti.com, vkoul@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com References: <20220618092201.3837791-1-victor.liu@nxp.com> <20220618092201.3837791-3-victor.liu@nxp.com> From: Krzysztof Kozlowski In-Reply-To: <20220618092201.3837791-3-victor.liu@nxp.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220619_051507_853751_582F021F X-CRM114-Status: GOOD ( 16.91 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On 18/06/2022 11:22, Liu Ying wrote: > This patch adds Freescale i.MX8qm LVDS PHY support. Don't use "This patch". https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95 > The PHY IP is from Mixel, Inc. > > Signed-off-by: Liu Ying > +static int mixel_lvds_phy_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct phy_provider *phy_provider; > + struct mixel_lvds_phy_priv *priv; > + struct mixel_lvds_phy *lvds_phy; > + struct phy *phy; > + int i; > + int ret; > + > + if (!dev->of_node) > + return -ENODEV; > + > + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); > + if (!priv) > + return -ENOMEM; > + > + priv->regmap = syscon_node_to_regmap(dev->of_node->parent); > + if (IS_ERR(priv->regmap)) { > + ret = PTR_ERR(priv->regmap); > + dev_err_probe(dev, ret, "failed to get regmap\n"); > + return ret; All such calls are one-liners. > + } > + > + priv->phy_ref_clk = devm_clk_get(dev, "phy_ref"); > + if (IS_ERR(priv->phy_ref_clk)) { > + ret = PTR_ERR(priv->phy_ref_clk); > + dev_err_probe(dev, ret, "failed to get PHY reference clock\n"); > + return ret; Again, one line instead of three. > + } > + > + mutex_init(&priv->lock); > + > + dev_set_drvdata(dev, priv); > + > + pm_runtime_enable(dev); > + > + ret = mixel_lvds_phy_reset(dev); > + if (ret) { > + dev_err(dev, "failed to do POR reset: %d\n", ret); > + return ret; > + } > + > + for (i = 0; i < PHY_NUM; i++) { > + lvds_phy = devm_kzalloc(dev, sizeof(*lvds_phy), GFP_KERNEL); > + if (!lvds_phy) { > + ret = -ENOMEM; > + goto err; > + } > + > + phy = devm_phy_create(dev, NULL, &mixel_lvds_phy_ops); > + if (IS_ERR(phy)) { > + ret = PTR_ERR(phy); > + dev_err(dev, "failed to create PHY for channel%d: %d\n", > + i, ret); > + goto err; > + } > + > + lvds_phy->phy = phy; > + lvds_phy->id = i; > + priv->phys[i] = lvds_phy; > + > + phy_set_drvdata(phy, lvds_phy); > + } > + > + phy_provider = devm_of_phy_provider_register(dev, mixel_lvds_phy_xlate); > + if (IS_ERR(phy_provider)) { > + ret = PTR_ERR(phy_provider); > + dev_err(dev, "failed to register PHY provider: %d\n", ret); > + goto err; > + } > + > + return 0; > +err: > + pm_runtime_disable(dev); > + > + return ret; > +} > + > +static int mixel_lvds_phy_remove(struct platform_device *pdev) > +{ > + pm_runtime_disable(&pdev->dev); > + > + return 0; > +} > + > +static int __maybe_unused mixel_lvds_phy_runtime_suspend(struct device *dev) > +{ > + struct mixel_lvds_phy_priv *priv = dev_get_drvdata(dev); > + > + /* power down */ > + mutex_lock(&priv->lock); > + regmap_write(priv->regmap, PHY_CTRL + REG_SET, PD); > + mutex_unlock(&priv->lock); > + > + dev_dbg(dev, "runtime suspended\n"); > + > + return 0; > +} > + > +static int __maybe_unused mixel_lvds_phy_runtime_resume(struct device *dev) > +{ > + struct mixel_lvds_phy_priv *priv = dev_get_drvdata(dev); > + > + /* power up + control initialization */ > + mutex_lock(&priv->lock); > + regmap_update_bits(priv->regmap, PHY_CTRL, > + CTRL_INIT_MASK | PD, CTRL_INIT_VAL); > + mutex_unlock(&priv->lock); > + > + dev_dbg(dev, "runtime resumed\n"); No such debug messages. Best regards, Krzysztof -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy