linux-kernel - Re: "leds: gpio: Use generic support for composing LED names" breaks gpio debugfs

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Message-ID: <CACRpkdZzzaaDM_Y8-Zf8AQrmfcVd+i0Uk0vYccnizG73cjEooA@mail.gmail.com>
Date:   Thu, 5 Dec 2019 00:45:51 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Jacek Anaszewski <jacek.anaszewski@...il.com>
Cc:     Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Pavel Machek <pavel@....cz>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux LED Subsystem <linux-leds@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: "leds: gpio: Use generic support for composing LED names" breaks
 gpio debugfs

On Wed, Dec 4, 2019 at 9:52 PM Jacek Anaszewski
<jacek.anaszewski@...il.com> wrote:

> It seem that the only proper solution would be introducing a new
> pre_register_cdev(const char *name) op to the LED core, that would allow
> drivers to come up with their implementation thereof. In this particular
> case leds-gpio driver would need to put there gpiod initialization.

I don't know the particulars but if it helps you can at any point
call:
int gpiod_set_consumer_name(struct gpio_desc *desc, const char *name);

For any successfully obtained descriptor, to set the consumer name,
i.e. the text appearing in debugfs and the GPIO character device.

Yours,
Linus Walleij