From: swarren@wwwdotorg•org (Stephen Warren)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH] gpiolib: Add of_get_gpio_chip_by_phandle() helper
Date: Thu, 17 May 2012 22:35:57 -0600 [thread overview]
Message-ID: <4FB5D1AD.3060304@wwwdotorg.org> (raw)
In-Reply-To: <20120518000800.B9F333E062C@localhost>
On 05/17/2012 06:08 PM, Grant Likely wrote:
...
> however, there is a bigger issue now. I'm changing the xlate
> mechanism to allow multiple gpio_chips to refer to the same device
> tree node which will break the assumption that this patch uses. The
> reason for this is to make it easier to support banked gpio
> controllers where a separate gpio_chip is used for each bank, but it
> is still described by a single device tree node. To properly resolve
> this will require a full gpio specifier reference instead of just the
> phandle. Will that work for your use-case?
Is a full GPIO specifier necessary? Perhaps a phandle plus bank index
would suffice?
prev parent reply other threads:[~2012-05-18 4:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-02 9:04 [PATCH] gpiolib: Add of_get_gpio_chip_by_phandle() helper Viresh Kumar
2012-05-02 15:27 ` Stephen Warren
[not found] ` <CAOh2x=nrNDrtNjOroWOm6HkYkc3f2qfaWrtN97d1M3rWv1qmsQ@mail.gmail.com>
2012-05-02 17:04 ` Stephen Warren
[not found] ` <CAOh2x=kvdB3VxGCToBBUkXAkTUh8bmpgu_rbkhxY4qLt3Lcp2w@mail.gmail.com>
2012-05-07 13:09 ` Linus Walleij
2012-05-07 13:08 ` Linus Walleij
2012-05-07 15:51 ` viresh kumar
2012-05-09 12:01 ` Linus Walleij
2012-05-18 0:08 ` Grant Likely
2012-05-18 3:43 ` Viresh Kumar
2012-05-18 5:46 ` Grant Likely
2012-05-18 6:43 ` Viresh Kumar
2012-05-18 4:35 ` Stephen Warren [this message]
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