linux-kernel - Re: [PATCH v3 20/42] net: cirrus: add DT support for Cirrus EP93xx

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Message-ID: <ZLqzAhWoZ2h7kNEP@smile.fi.intel.com>
Date:   Fri, 21 Jul 2023 19:32:02 +0300
From:   Andy Shevchenko <andy@...nel.org>
To:     nikita.shubin@...uefel.me
Cc:     Hartley Sweeten <hsweeten@...ionengravers.com>,
        Lennert Buytenhek <kernel@...tstofly.org>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Lukasz Majewski <lukma@...x.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Sebastian Reichel <sre@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Mark Brown <broonie@...nel.org>,
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        Miquel Raynal <miquel.raynal@...tlin.com>,
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        Takashi Iwai <tiwai@...e.com>,
        Michael Peters <mpeters@...eddedts.com>,
        Kris Bahnsen <kris@...eddedts.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-rtc@...r.kernel.org,
        linux-watchdog@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-pwm@...r.kernel.org, linux-spi@...r.kernel.org,
        netdev@...r.kernel.org, dmaengine@...r.kernel.org,
        linux-mtd@...ts.infradead.org, linux-ide@...r.kernel.org,
        linux-input@...r.kernel.org, alsa-devel@...a-project.org,
        Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH v3 20/42] net: cirrus: add DT support for Cirrus EP93xx

On Thu, Jul 20, 2023 at 02:29:20PM +0300, Nikita Shubin via B4 Relay wrote:
> From: Nikita Shubin <nikita.shubin@...uefel.me>
> 
> - add OF ID match table
> - get phy_id from the device tree, as part of mdio
> - copy_addr is now always used, as there is no SoC/board that aren't
> - dropped platform header

...

> +	base_addr = ioremap(mem->start, resource_size(mem));
> +	if (!base_addr)
> +		return dev_err_probe(&pdev->dev, -EIO, "Failed to ioremap ethernet registers\n");
> +
> +	np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);

Isn't it something which is done in PHY core should do for you?
Maybe Andrew Lunn can comment on this.

> +	if (!np)

Yeah, right, let's leak mapped IO address space...
And so on.

> +		return dev_err_probe(&pdev->dev, -ENODEV, "Please provide \"phy-handle\"\n");

-- 
With Best Regards,
Andy Shevchenko