linux-kernel - [BUG] pinctrl: reg-fixed-voltage usb0-vbus: error -EINVAL: can't get GPIO

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Message-ID: <Yea3rBmY+MO4AhhV@Red>
Date:   Tue, 18 Jan 2022 13:50:52 +0100
From:   Corentin Labbe <clabbe.montjoie@...il.com>
To:     linus.walleij@...aro.org, mripard@...nel.org, wens@...e.org,
        jernej.skrabec@...il.com, hverkuil-cisco@...all.nl
Cc:     linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        zhangn1985@...il.com
Subject: [BUG] pinctrl: reg-fixed-voltage usb0-vbus: error -EINVAL: can't get
 GPIO

Hello

As reported on old googlegroup sunxi mainling list, on linux-next-20220118, USB storage fail to bring up on orangepiPC.
We can see some error logs in dmesg:
reg-fixed-voltage usb0-vbus: error -EINVAL: can't get GPIO
reg-fixed-voltage: probe of usb0-vbus failed with error -22

This is bisected to: 8df89a7cbc63c7598c00611ad17b67e8d5b4fad3 pinctrl-sunxi: don't call pinctrl_gpio_direction()

Reverting this commit lead to a working USB storage being setuped.

Regards