linux-kernel - Re: [PATCH RFC v4 2/6] ARM: pxa: Convert Spitz LEDs to GPIO descriptors

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Message-ID: <CAHp75VeYduD=uXpNKcxhwqFTkahUbz_Ockqi7KVO88cpeVHbQQ@mail.gmail.com>
Date:   Sun, 1 Oct 2023 17:34:32 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Duje Mihanović <duje.mihanovic@...le.hr>
Cc:     Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Russell King <linux@...linux.org.uk>,
        Alan Stern <stern@...land.harvard.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Andy Shevchenko <andy@...nel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Mark Brown <broonie@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-input@...r.kernel.org, linux-spi@...r.kernel.org
Subject: Re: [PATCH RFC v4 2/6] ARM: pxa: Convert Spitz LEDs to GPIO descriptors

On Sun, Oct 1, 2023 at 5:13 PM Duje Mihanović <duje.mihanovic@...le.hr> wrote:
>
> Sharp's Spitz board still uses the legacy GPIO interface for configuring
> its two onboard LEDs.
>
> Convert them to use the GPIO descriptor interface.

...

>  static void __init spitz_leds_init(void)
>  {
> +       gpiod_add_lookup_table(&spitz_led_gpio_table);
>         platform_device_register(&spitz_led_device);
> +       spitz_gpio_leds[0].gpiod = gpiod_get_index(&spitz_led_device.dev,
> +                       NULL, 0, GPIOD_ASIS);
> +       spitz_gpio_leds[1].gpiod = gpiod_get_index(&spitz_led_device.dev,
> +                       NULL, 1, GPIOD_ASIS);
>  }

What's the point of keeping a lookup table after we got descriptors out of it?

-- 
With Best Regards,
Andy Shevchenko