From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Chew Chiau Ee <chiau.ee.chew@intel.com>,
Mathias Nyman <mathias.nyman@linux.intel.com>,
Darren Hart <dvhart@linux.intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] pinctrl-baytrail: add function mux checking in gpio pin request
Date: Tue, 11 Mar 2014 12:36:41 +0200 [thread overview]
Message-ID: <20140311103641.GX5018@intel.com> (raw)
In-Reply-To: <CACRpkdajaffBOmc9KeUyLkwZth6vNu-Z0Ln+Xf4ZV0gZ9Ytf_g@mail.gmail.com>
On Tue, Mar 11, 2014 at 11:27:13AM +0100, Linus Walleij wrote:
> On Thu, Mar 6, 2014 at 2:59 PM, Chew Chiau Ee <chiau.ee.chew@intel.com> wrote:
>
> > From: Chew, Kean Ho <kean.ho.chew@intel.com>
> >
> > The requested gpio pin must has the func_pin_mux field set
> > to GPIO function by BIOS/FW in advanced. Else, the gpio pin
> > request would fail. This is to ensure that we do not expose
> > any gpio pins which shall be used for alternate functions,
> > for eg: wakeup pin, I/O interfaces for LPSS, etc.
> >
> > Signed-off-by: Chew, Kean Ho <kean.ho.chew@intel.com>
> > Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com>
>
> Patch applied with Darren's ACK.
>
> This confirms my suspicion that you will not be able to
> hide the pin control interface side of this hardware forever. ;-)
>
> Mika/Mathias: any comments?
No comments, looks good to me :)
next prev parent reply other threads:[~2014-03-11 10:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-06 13:59 [PATCH] pinctrl-baytrail: add function mux checking in gpio pin request Chew Chiau Ee
2014-03-06 6:56 ` Darren Hart
2014-03-11 10:27 ` Linus Walleij
2014-03-11 10:36 ` Mika Westerberg [this message]
2014-03-11 11:48 ` Mathias Nyman
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