linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Linus Walleij <linus.walleij@linaro.org>
To: Andrey Smirnov <andrew.smirnov@gmail.com>,
	Neil Armstrong <narmstrong@baylibre.com>
Cc: Peter Rosin <peda@axentia.se>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	Roland Stigge <stigge@antcom.de>,
	Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Subject: Re: [PATCH v3] pinctrl: Add SX150X GPIO Extender Pinctrl Driver
Date: Mon, 24 Oct 2016 16:39:17 +0200	[thread overview]
Message-ID: <CACRpkdY7vLU4yVP7M-O4rGt_L5cqL57ApmMQJ4aRGgzh3Nat6Q@mail.gmail.com> (raw)
In-Reply-To: <CAHQ1cqGLQ=DdhXg1ebkgBbLN8P2P8BEDrGGTx9_r+6=Wy3uUWA@mail.gmail.com>

On Mon, Oct 24, 2016 at 6:51 AM, Andrey Smirnov
<andrew.smirnov@gmail.com> wrote:

> It seem strange to me that the driver uses "handle_edge_irq", given
> how none of the individual interrupts seem to require any ACKing,
> since it is all handled in sx150x_irq_thread_fn(), line 533. More so,
> I had trouble finding who/where sets .irq_ack() callback, which AFAIU
> is mandatory for handle_edge_irq().

Yes that looks strange.

Neil have you tested IRQs with this code?

If there is trouble, please follow up with a fix for the edge handler.
Maybe it should just be handle_simple_irq().

Yours,
Linus Walleij

  reply	other threads:[~2016-10-24 14:39 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-21  9:09 [PATCH v3] pinctrl: Add SX150X GPIO Extender Pinctrl Driver Neil Armstrong
2016-10-21  9:19 ` Neil Armstrong
2016-10-23  2:50 ` Andrey Smirnov
2016-10-23 10:47   ` Linus Walleij
2016-10-24  4:51     ` Andrey Smirnov
2016-10-24 14:39       ` Linus Walleij [this message]
2016-10-25  6:57         ` Neil Armstrong
2016-10-23 10:41 ` Linus Walleij

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CACRpkdY7vLU4yVP7M-O4rGt_L5cqL57ApmMQJ4aRGgzh3Nat6Q@mail.gmail.com \
    --to=linus.walleij@linaro.org \
    --cc=andrew.smirnov@gmail.com \
    --cc=devicetree@vger.kernel.org \
    --cc=linux-gpio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=narmstrong@baylibre.com \
    --cc=peda@axentia.se \
    --cc=stigge@antcom.de \
    --cc=vladimir_zapolskiy@mentor.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).