Kernel Newbies archive on lore.kernel.org
 help / color / Atom feed
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: "Valdis Klētnieks" <valdis.kletnieks@vt.edu>
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Alexander Ivanov <amivanov@fastmail.com>,
	Jean Delvare <jdelvare@suse.de>, Bj?rn Mork <bjorn@mork.no>,
	kernelnewbies@kernelnewbies.org
Subject: Re: GPIO Driver for Skylake-Y PCH
Date: Tue, 18 Jun 2019 18:57:37 +0300
Message-ID: <20190618155737.GU9224@smile.fi.intel.com> (raw)
In-Reply-To: <11636.1560869325@turing-police>

On Tue, Jun 18, 2019 at 10:48:45AM -0400, Valdis Klētnieks wrote:
> On Tue, 18 Jun 2019 11:40:34 +0300, Andy Shevchenko said:
> 
> > Yes. Most of the SoCs from Intel use GPIO IP based on Chassis specification,
> > the drivers for which are available under drivers/pinctrl/intel. What you are
> > looking for is located under PINCTRL_SUNRISEPOINT configuration option.
> 
> Thanks for the info, it's often unclear where to look - when the hardware has
> a PCH and documentation that says it has GPIO, and there's an in-tree driver
> called gpio_pch, it's easy to fail to look in the right place :)

Citing in-kernel documentation:

--- 8< --- 8< ---- 8< ---

Electrical properties of the pin such as biasing and drive strength
may be placed at some pin-specific register in all cases or as part
of the GPIO register in case (B) especially. This doesn't mean that such
properties necessarily pertain to what the Linux kernel calls "GPIO".

-- 
With Best Regards,
Andy Shevchenko



_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

  reply index

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-14 17:58 Alexander Ivanov
2019-06-14 18:46 ` Valdis Klētnieks
2019-06-14 19:01   ` Alexander Ivanov
2019-06-14 19:09     ` Valdis Klētnieks
2019-06-14 20:25       ` Alexander Ivanov
2019-06-14 22:40         ` Alexander Ivanov
2019-06-15  8:53           ` Bjørn Mork
2019-06-15 19:30           ` Valdis Klētnieks
2019-06-15 19:38             ` Alexander Ivanov
2019-06-15 19:56               ` Greg KH
2019-06-16  1:50               ` Valdis Klētnieks
2019-06-16  2:45                 ` Alexander Ivanov
2019-06-16  8:54                   ` Bjørn Mork
2019-06-17  8:06             ` Andy Shevchenko
2019-06-18  0:00               ` Alexander Ivanov
2019-06-18  8:40                 ` Andy Shevchenko
2019-06-18 14:48                   ` Valdis Klētnieks
2019-06-18 15:57                     ` Andy Shevchenko [this message]
2019-06-18 16:17                       ` Alexander Ivanov
2019-06-20 21:02                   ` Alexander Ivanov
2019-06-21 10:12                     ` Andy Shevchenko
2019-06-21 17:39                       ` Alexander Ivanov
2019-06-24 18:39                         ` Alexander Ivanov
2019-06-25 11:08                           ` Andy Shevchenko
2019-06-25 14:10                             ` Linus Walleij
2019-07-10 16:04                               ` Andy Shevchenko
2019-06-14 19:12   ` Bjørn Mork

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190618155737.GU9224@smile.fi.intel.com \
    --to=andriy.shevchenko@linux.intel.com \
    --cc=amivanov@fastmail.com \
    --cc=bjorn@mork.no \
    --cc=jdelvare@suse.de \
    --cc=kernelnewbies@kernelnewbies.org \
    --cc=linus.walleij@linaro.org \
    --cc=valdis.kletnieks@vt.edu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Kernel Newbies archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/kernelnewbies/0 kernelnewbies/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 kernelnewbies kernelnewbies/ https://lore.kernel.org/kernelnewbies \
		kernelnewbies@kernelnewbies.org kernelnewbies@archiver.kernel.org
	public-inbox-index kernelnewbies


Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernelnewbies.kernelnewbies


AGPL code for this site: git clone https://public-inbox.org/ public-inbox