linux-kernel - [PATCH v1 04/11] usb: phy: tegra: switch to using devm_gpiod

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Date:   Sun,  4 Sep 2022 23:30:56 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Matti Vaittinen <mazziesaccount@...il.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Felipe Balbi <balbi@...nel.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Daniel Vetter <daniel@...ll.ch>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Marc Zyngier <maz@...nel.org>,
        Richard Weinberger <richard@....at>,
        David Airlie <airlied@...ux.ie>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Rob Herring <robh@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Pali Rohár <pali@...nel.org>
Cc:     linux-watchdog@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-mtd@...ts.infradead.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v1 04/11] usb: phy: tegra: switch to using devm_gpiod_get()

I would like to stop exporting OF-specific devm_gpiod_get_from_of_node()
so that gpiolib can be cleaned a bit, so let's switch to the generic
device property API.

I believe that the only reason the driver, instead of the standard
devm_gpiod_get(), used devm_gpiod_get_from_of_node() is because it
wanted to set up a pretty consumer name for the GPIO, and we now have
a special API for that.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>

diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index 68cd4b68e3a2..f0240107edb1 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -1440,16 +1440,22 @@ static int tegra_usb_phy_probe(struct platform_device *pdev)
 			return err;
 		}
 
-		gpiod = devm_gpiod_get_from_of_node(&pdev->dev, np,
-						    "nvidia,phy-reset-gpio",
-						    0, GPIOD_OUT_HIGH,
-						    "ulpi_phy_reset_b");
+		gpiod = devm_gpiod_get(&pdev->dev, "nvidia,phy-reset",
+				       GPIOD_OUT_HIGH);
 		err = PTR_ERR_OR_ZERO(gpiod);
 		if (err) {
 			dev_err(&pdev->dev,
 				"Request failed for reset GPIO: %d\n", err);
 			return err;
 		}
+
+		err = gpiod_set_consumer_name(gpiod, "ulpi_phy_reset_b");
+		if (err) {
+			dev_err(&pdev->dev,
+				"Failed to set up reset GPIO name: %d\n", err);
+			return err;
+		}
+
 		tegra_phy->reset_gpio = gpiod;
 
 		phy = devm_otg_ulpi_create(&pdev->dev,

-- 
b4 0.10.0-dev-fc921