From: "Andrey Jr. Melnikov" <temnota.am@gmail.com>
To: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org
Subject: Re: [PATCH v5 1/2] pinctrl: Add driver for Awinic AW9523/B I2C GPIO Expander
Date: Sat, 3 Apr 2021 16:48:13 +0300 [thread overview]
Message-ID: <r98mjh-2c6.ln1@banana.localnet> (raw)
In-Reply-To: 20210125182219.213214-1-angelogioacchino.delregno@somainline.org
In gmane.linux.kernel.gpio AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> wrote:
> The Awinic AW9523(B) is a multi-function I2C gpio expander in a
> TQFN-24L package, featuring PWM (max 37mA per pin, or total max
> power 3.2Watts) for LED driving capability.
> It has two ports with 8 pins per port (for a total of 16 pins),
> configurable as either PWM with 1/256 stepping or GPIO input/output,
> 1.8V logic input; each GPIO can be configured as input or output
> independently from each other.
I can't see where PWM output registers is programmed. I'm rightly
understands - this driver for GPIO only?
> This IC also has an internal interrupt controller, which is capable
> of generating an interrupt for each GPIO, depending on the
> configuration, and will raise an interrupt on the INTN pin to
> advertise this to an external interrupt controller.
prev parent reply other threads:[~2021-04-03 14:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-25 18:22 [PATCH v5 1/2] pinctrl: Add driver for Awinic AW9523/B I2C GPIO Expander AngeloGioacchino Del Regno
2021-01-25 18:22 ` [PATCH v5 2/2] dt-bindings: pinctrl: Add bindings for Awinic AW9523/AW9523B AngeloGioacchino Del Regno
2021-01-26 14:39 ` Rob Herring
2021-01-26 14:47 ` [PATCH v5 1/2] pinctrl: Add driver for Awinic AW9523/B I2C GPIO Expander Linus Walleij
2021-04-03 13:48 ` Andrey Jr. Melnikov [this message]
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