From: Linus Walleij <linus.walleij@linaro.org>
To: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cc: "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: [PATCH 2/3] dt-bindings: gpio: Add binding document for xylon logicvc-gpio
Date: Thu, 12 Sep 2019 10:19:42 +0100 [thread overview]
Message-ID: <CACRpkdYrTCnrW6-28+RhdMZ4cB5VcqG6T-5aABvvEgiZ3iri2Q@mail.gmail.com> (raw)
In-Reply-To: <20190910152855.111588-2-paul.kocialkowski@bootlin.com>
On Tue, Sep 10, 2019 at 4:29 PM Paul Kocialkowski
<paul.kocialkowski@bootlin.com> wrote:
> The Xylon LogiCVC display controller exports some GPIOs, which are
> exposed as a dedicated driver.
>
> This introduces the associated device-tree bindings documentation.
>
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
(...)
> +The controller exposes GPIOs from the display and power control registers,
> +which are mapped by the driver as follows:
> +- GPIO[4:0] (display control) mapped to index 0-4
> +- EN_BLIGHT (power control) mapped to index 5
> +- EN_VDD (power control) mapped to index 6
> +- EN_VEE (power control) mapped to index 7
> +- V_EN (power control) mapped to index 8
This should be reflected in the gpio-line-names in the example
and in your device trees.
Yours,
Linus Walleij
next prev parent reply other threads:[~2019-09-12 9:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-10 15:28 [PATCH 1/3] gpio: syscon: Add support for a custom get operation Paul Kocialkowski
2019-09-10 15:28 ` [PATCH 2/3] dt-bindings: gpio: Add binding document for xylon logicvc-gpio Paul Kocialkowski
2019-09-12 9:19 ` Linus Walleij [this message]
2019-09-23 13:59 ` Paul Kocialkowski
2019-09-13 14:36 ` Rob Herring
2019-09-23 14:13 ` Paul Kocialkowski
2019-09-10 15:28 ` [PATCH 3/3] gpio: syscon: Add support for the Xylon LogiCVC GPIOs Paul Kocialkowski
2019-09-12 9:17 ` Linus Walleij
2019-09-23 13:33 ` Paul Kocialkowski
2019-10-04 21:24 ` Linus Walleij
2019-09-12 9:18 ` [PATCH 1/3] gpio: syscon: Add support for a custom get operation Linus Walleij
2019-09-23 13:34 ` Paul Kocialkowski
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