linux-kernel - Re: [PATCH 13/13] auxdisplay: Add HD44780 Character LCD support

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Date:   Wed, 8 Feb 2017 14:18:34 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Miguel Ojeda Sandonis <miguel.ojeda.sandonis@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Willy Tarreau <willy@...roxy.com>,
        Ksenija Stanojevic <ksenija.stanojevic@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree <devicetree@...r.kernel.org>
Subject: Re: [PATCH 13/13] auxdisplay: Add HD44780 Character LCD support

Hi Andy,

On Tue, Feb 7, 2017 at 12:23 PM, Andy Shevchenko
<andy.shevchenko@...il.com> wrote:
> On Mon, Feb 6, 2017 at 4:38 PM, Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>> The Hitachi HD44780 Character LCD Controller is commonly used on
>> character LCDs that can display one or more lines of text.
>>
>> This driver supports character LCDs connected to GPIOs, using either a
>> 4-bit or 8-bit data bus, and provides access through the charlcd core
>> and /dev/lcd.
>
> Can we not limit this to OF? I can easily imagine use case with
> x86/ACPI enabled platform.

Sure!

> On the first glance of_property-* -> device_property_* is enough.

And of_gpio_named_count() -> gpiod_count().

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds