From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
Ahmad Fatoum <a.fatoum@pengutronix.de>,
linux-iio <linux-iio@vger.kernel.org>,
Robin van der Gracht <robin@protonic.nl>,
William Breathitt Gray <vilhelm.gray@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
David Jander <david@protonic.nl>,
Jonathan Cameron <jic23@kernel.org>
Subject: Re: [PATCH v5 2/2] counter: add IRQ or GPIO based event counter
Date: Mon, 15 Feb 2021 08:58:08 +0100 [thread overview]
Message-ID: <20210215075808.cir3smhrikrxfv76@pengutronix.de> (raw)
In-Reply-To: <CACRpkdZ5ZQDcy5RP=CVPJ14Lyktw_4yOuELJRweeDpPKRL3RVA@mail.gmail.com>
On Fri, Feb 12, 2021 at 10:26:39AM +0100, Linus Walleij wrote:
> On Mon, Feb 8, 2021 at 2:53 PM Oleksij Rempel <o.rempel@pengutronix.de> wrote:
>
> > Add simple IRQ or GPIO base event counter. This device is used to measure
> > rotation speed of some agricultural devices, so no high frequency on the
> > counter pin is expected.
> >
> > The maximal measurement frequency depends on the CPU and system load. On
> > the idle iMX6S I was able to measure up to 20kHz without count drops.
> >
> > Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
> > Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
>
> From GPIO and interrupt point of view this driver looks good to me.
> I don't know about the userspace interface etc.
May I have your Reviewed-by?
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next prev parent reply other threads:[~2021-02-15 7:58 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-08 13:53 [PATCH v5 0/2] add support for GPIO or IRQ based evemt counter Oleksij Rempel
2021-02-08 13:53 ` [PATCH v5 1/2] dt-bindings: counter: add event-counter binding Oleksij Rempel
2021-02-10 18:41 ` Rob Herring
2021-02-12 9:22 ` Linus Walleij
2021-02-12 9:29 ` Linus Walleij
2021-02-08 13:53 ` [PATCH v5 2/2] counter: add IRQ or GPIO based event counter Oleksij Rempel
2021-02-08 14:14 ` William Breathitt Gray
2021-02-12 9:26 ` Linus Walleij
2021-02-15 7:58 ` Oleksij Rempel [this message]
2021-02-14 8:54 ` William Breathitt Gray
2021-02-15 9:17 ` Oleksij Rempel
2021-02-22 1:43 ` William Breathitt Gray
2021-02-23 10:06 ` Oleksij Rempel
2021-02-23 17:45 ` Oleksij Rempel
2021-02-24 2:34 ` William Breathitt Gray
2021-02-24 7:35 ` Oleksij Rempel
2021-02-24 8:11 ` William Breathitt Gray
2021-02-24 8:20 ` William Breathitt Gray
2021-02-26 6:46 ` Oleksij Rempel
2021-02-26 6:58 ` William Breathitt Gray
2021-03-02 15:37 ` Linus Walleij
2021-02-14 7:43 ` [PATCH v5 0/2] add support for GPIO or IRQ based evemt counter William Breathitt Gray
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