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Message-ID: <b0bc0d0a4c1b7b19e0c6c30802fb2f622bae65de.camel@pengutronix.de>
Subject: Re: [RFC/RFT v2 04/11] phy: rockchip: Support PCIe v3
From:   Philipp Zabel <p.zabel@pengutronix.de>
To:     Frank Wunderlich <linux@fw-web.de>,
        linux-rockchip@lists.infradead.org
Cc:     Frank Wunderlich <frank-w@public-files.de>,
        Bjorn Helgaas <bhelgaas@google.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Heiko Stuebner <heiko@sntech.de>,
        Kishon Vijay Abraham I <kishon@ti.com>,
        Vinod Koul <vkoul@kernel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Krzysztof =?UTF-8?Q?Wilczy=C5=84ski?= <kw@linux.com>,
        Johan Jonker <jbx6244@gmail.com>,
        Peter Geis <pgwipeout@gmail.com>,
        Michael Riesch <michael.riesch@wolfvision.net>,
        linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-phy@lists.infradead.org
Date:   Thu, 28 Apr 2022 09:38:13 +0200
In-Reply-To: <20220426132139.26761-5-linux@fw-web.de>
References: <20220426132139.26761-1-linux@fw-web.de>
         <20220426132139.26761-5-linux@fw-web.de>
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Hi Frank,

On Di, 2022-04-26 at 15:21 +0200, Frank Wunderlich wrote:
> +	priv->p30phy = devm_reset_control_get_exclusive(dev, "phy");
> +	if (IS_ERR(priv->p30phy)) {
> +		dev_warn(dev, "no phy reset control specified\n");
> +		priv->p30phy = NULL;
> +	}

Please use devm_reset_control_get_optional_exclusive() [1] instead,
which already returns NULL if no reset control is specified, and return
on errors.

[1] https://docs.kernel.org/driver-api/reset.html#c.devm_reset_control_get_optional_exclusive

regards
Philipp