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

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Message-ID: <CAHp75Ve0SmQg+oaDU7zJ3zpi2GHJJkQ9HFJk-CuxR5Woq4x7rQ@mail.gmail.com>
Date:   Wed, 8 Feb 2017 15:38:13 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
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

On Wed, Feb 8, 2017 at 3:18 PM, Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> 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().

Indeed.

Btw, have you any plans to make an order among spreaded LCD drivers in
kernel? Perhaps we may gather them under auxdisplay hood?

-- 
With Best Regards,
Andy Shevchenko