Linux GPIO subsystem development
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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>
Subject: Re: [PATCH 1/2] gpio: Add support for IDT 79RC3243x GPIO controller
Date: Wed, 21 Apr 2021 10:32:14 +0200	[thread overview]
Message-ID: <20210421083214.GA5694@alpha.franken.de> (raw)
In-Reply-To: <CAHp75VcQ4WXm3uS2r=uDpA4+0vPWdKjev6=vV_JDxMLPzpHDRw@mail.gmail.com>

On Wed, Apr 21, 2021 at 11:09:51AM +0300, Andy Shevchenko wrote:
> On Tuesday, April 20, 2021, Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> wrote:
> 
> > IDT 79RC3243x SoCs integrated a gpio controller, which handles up
> > to 32 gpios. All gpios could be used as interrupt source.
> 
> 
> 
> I would recommend looking for latest new drivers in GPIO subsystem to see
> how you may improve yours.

Could give me a better pointer to it ? I looked at a lot of gpio driver
and took what fitted best.

> Here just one question, why it can not be a module

that's probably doable...

> why arch_initcall() is used

without that interrupts weren't avaiable early enough. 

> and why you put a dead code into it (see the first part of the
> question)?

hmm, pointer please ?

> I will perform a deep review later on.

thank you.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]

  parent reply	other threads:[~2021-04-21  8:32 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-20 12:39 [PATCH 1/2] gpio: Add support for IDT 79RC3243x GPIO controller Thomas Bogendoerfer
2021-04-20 12:39 ` [PATCH 2/2] dt-bindings: gpio: Add devicetree binding " Thomas Bogendoerfer
     [not found] ` <CAHp75VcQ4WXm3uS2r=uDpA4+0vPWdKjev6=vV_JDxMLPzpHDRw@mail.gmail.com>
2021-04-21  8:32   ` Thomas Bogendoerfer [this message]
2021-04-21  8:48     ` [PATCH 1/2] gpio: Add support " Andy Shevchenko
2021-04-21  9:18       ` Thomas Bogendoerfer
2021-04-21  9:54         ` Andy Shevchenko
2021-04-21 10:37           ` Thomas Bogendoerfer
2021-04-21 10:46             ` Andy Shevchenko
2021-04-21 11:15               ` Thomas Bogendoerfer

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