From: rob@landley.net (Rob Landley)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] pinctrl: update GPIO range doc
Date: Mon, 17 Jun 2013 00:20:35 -0500 [thread overview]
Message-ID: <1371446435.2776.122@driftwood> (raw)
In-Reply-To: <1371377909-5921-1-git-send-email-linus.walleij@stericsson.com> (from linus.walleij@stericsson.com on Sun Jun 16 05:18:29 2013)
On 06/16/2013 05:18:29 AM, Linus Walleij wrote:
> From: Linus Walleij <linus.walleij@linaro.org>
>
> This updates the GPIO range documentation with the API changes
> for sparse/random/arbitrary pin-to-GPIO mappings.
Acked-by: Rob Landley <rob@landley.net>
Why isn't this part of the pinctrl series you posted right afterwards?
(It should go in through that maintainer...)
> For all functionalities dealing with pin biasing, pin muxing etc,
> the pin
> -controller subsystem will subtract the range's .base offset from the
> passed
> -in gpio number, and add the ranges's .pin_base offset to retrive a
> pin number.
> -After that, the subsystem passes it on to the pin control driver, so
> the driver
> +controller subsystem will look up the corresponding pin number from
> the passed
> +in gpio number, and use the ranges internals to retrive a pin
> number. After
Range's perhaps?
Rob
next prev parent reply other threads:[~2013-06-17 5:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-16 10:18 [PATCH] pinctrl: update GPIO range doc Linus Walleij
2013-06-17 5:20 ` Rob Landley [this message]
2013-06-17 16:14 ` Linus Walleij
2013-06-17 8:11 ` Christian Ruppert
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