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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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