linux-kernel - Re: [PATCH v6] pinctrl: add a pin config interface

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Date:	Tue, 13 Dec 2011 01:22:50 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Haojian Zhuang <haojian.zhuang@...il.com>
Cc:	Linus Walleij <linus.walleij@...ricsson.com>,
	linux-kernel@...r.kernel.org, Stephen Warren <swarren@...dia.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Barry Song <21cnbao@...il.com>,
	Shawn Guo <shawn.guo@...escale.com>,
	Thomas Abraham <thomas.abraham@...aro.org>,
	Dong Aisheng <dong.aisheng@...aro.org>,
	Rajendra Nayak <rajendra.nayak@...aro.org>,
	Haojian Zhuang <haojian.zhuang@...vell.com>
Subject: Re: [PATCH v6] pinctrl: add a pin config interface

On Mon, Dec 12, 2011 at 7:19 AM, Haojian Zhuang
<haojian.zhuang@...il.com> wrote:

> You mentioned that pin_config_set() is used in below.
> ret = pin_config_set(dev, "FOO_GPIO_PIN", PLATFORM_X_PULL_UP);
>
> struct pinctrl_dev is created while pinmux is registered. I think this
> structure is always internal structure. It can't be observed by
> platform driver or device driver.

True. Was fixed today by a patch from Stephen Warren that
simply cuts out the middleman and use the original platform
device directly. Kudos to Stephen for fixing this!

Linus Walleij
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