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From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Chris Chiu <chiu@endlessm.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	linux-gpio@vger.kernel.org,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Linux Upstreaming Team <linux@endlessm.com>
Subject: Re: [PATCH] pinctrl: intel: save HOSTSW_OWN register over suspend/resume
Date: Tue, 21 Nov 2017 14:04:22 +0200	[thread overview]
Message-ID: <20171121120422.GR22431@lahna.fi.intel.com> (raw)
In-Reply-To: <CAB4CAwcjXi=YX+0PEC6wBdfAZ=am+BceB4HCFzTXzdts_FE2vQ@mail.gmail.com>

On Tue, Nov 21, 2017 at 07:54:26PM +0800, Chris Chiu wrote:
> Yup, I checked the value of the corresponded pin. It shows following before
> suspend
> pin 18 (GPIO_18) GPIO 0x40800102 0x00024075
> 
> Then after resume
> pin 18 (GPIO_18) GPIO 0x40800102 0x00024075 [ACPI]

OK, so ownership is changed to ACPI.

> What else register do you suggest me to compare? The PADCFG2 is invalid

It's fine APL does not have PADCFG2.

Hmm, I don't understand how this can work in Windows either. The Windows
people told me that they don't save and restore anything else than
padcfg registers + ie. If the ownership is changed to ACPI it means you
don't get interrupts anymore (only GPEs) and that applies to Windows as
well.

  reply	other threads:[~2017-11-21 12:13 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-14 10:41 [PATCH] pinctrl: intel: save HOSTSW_OWN register over suspend/resume Chris Chiu
     [not found] ` <20171115080446.GY17200@lahna.fi.intel.com>
2017-11-15  8:08   ` Chris Chiu
2017-11-15 10:13     ` Mika Westerberg
2017-11-15 10:19       ` Chris Chiu
2017-11-16 12:44         ` Mika Westerberg
2017-11-16 13:27           ` Chris Chiu
2017-11-17  6:49             ` Mika Westerberg
2017-11-17  8:11               ` Chris Chiu
2017-11-21 10:52                 ` Mika Westerberg
2017-11-21 11:54                   ` Chris Chiu
2017-11-21 12:04                     ` Mika Westerberg [this message]
2017-11-23 12:24                       ` Chris Chiu
2017-11-23 12:43                         ` Mika Westerberg
2019-03-27  8:22                       ` Daniel Drake
2019-03-27 17:29                         ` Mika Westerberg
2019-03-28  8:28                           ` Mika Westerberg
2019-03-28  9:17                           ` Andy Shevchenko
2019-03-28  9:38                             ` Daniel Drake
2019-03-28 12:19                               ` Chris Chiu
2019-03-28 12:34                                 ` Mika Westerberg
2019-03-29  8:38                                   ` Chris Chiu
2019-04-01  7:49                                     ` Mika Westerberg
2019-04-01 10:41                                       ` Chris Chiu
2019-04-01 12:22                                         ` Andy Shevchenko
2019-04-02  6:16                                           ` Chris Chiu
2019-04-02 11:58                                             ` Andy Shevchenko
2019-04-03  7:06                                               ` Chris Chiu
2019-04-03 13:06                                                 ` Andy Shevchenko
2019-04-04 13:06                                                   ` Chris Chiu
2019-04-04 13:59                                                     ` Andy Shevchenko

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