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From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: "Pali Rohár" <pali.rohar@gmail.com>
Cc: "Wolfram Sang" <wsa@the-dreams.de>,
	"Jean Delvare" <jdelvare@suse.com>,
	"Steven Honeyman" <stevenhoneyman@gmail.com>,
	valdis.kletnieks@vt.edu,
	"Jochen Eisinger" <jochen@penguin-breeder.org>,
	"Gabriele Mazzotta" <gabriele.mzt@gmail.com>,
	"Andy Lutomirski" <luto@kernel.org>,
	"Mario Limonciello" <mario_limonciello@dell.com>,
	"Alex Hung" <alex.hung@canonical.com>,
	"Michał Kępień" <kernel@kempniu.pl>,
	"Takashi Iwai" <tiwai@suse.de>,
	linux-i2c@vger.kernel.org,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	platform-driver-x86@vger.kernel.org
Subject: Re: [PATCH] i2c: i801: Register optional lis3lv02d i2c device on Dell machines
Date: Wed, 28 Dec 2016 00:15:30 +0200	[thread overview]
Message-ID: <CAHp75VeWBaPNmT0mb+Gs_ZhFEHFx_H-Ro0UQ9u1VvLhNVjCqYQ@mail.gmail.com> (raw)
In-Reply-To: <201612271451.01505@pali>

On Tue, Dec 27, 2016 at 3:51 PM, Pali Rohár <pali.rohar@gmail.com> wrote:
> On Tuesday 27 December 2016 14:43:49 Wolfram Sang wrote:
>> > Dell platform team told us that some (DMI whitelisted) Dell
>> > Latitude machines have ST microelectronics accelerometer at i2c
>> > address 0x29. That
>> > i2c address is not specified in DMI or ACPI, so runtime detection
>> > without
>> > whitelist which is below is not possible.
>>
>> I'd think this should rather live somewhere in
>> drivers/platform/x86/dell*.c?
>
> i2c_new_device() with lis3lv02d for i801 i2c bus needs to be called
> after initializing i2c-i801 bus driver.
>
> I have no idea how to do it (properly) outside of i2c-i801.c file.

I doubt we need a single line of code for this. See [1] and perhaps
create an EFI variable with necessary upgrade device node.

> Same thing is done for Fujitsu machines, see function
> i801_probe_optional_slaves() in i2c-i801.c file. So I did similar
> approach for Dell machines.

Perhaps, this also needs to be converted to use EFI variable.

[1] https://lwn.net/Articles/693212/

-- 
With Best Regards,
Andy Shevchenko

  reply	other threads:[~2016-12-27 22:15 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-27 12:52 [PATCH] i2c: i801: Register optional lis3lv02d i2c device on Dell machines Pali Rohár
2016-12-27 13:43 ` Wolfram Sang
2016-12-27 13:51   ` Pali Rohár
2016-12-27 22:15     ` Andy Shevchenko [this message]
2016-12-27 22:41       ` Valdis.Kletnieks
2016-12-28  7:55         ` Andy Shevchenko
2016-12-28  9:05           ` Pali Rohár
2016-12-28 14:03             ` Wolfram Sang
2016-12-29  4:37               ` Valdis.Kletnieks
2016-12-28  8:38       ` Pali Rohár
2016-12-28 14:02     ` Wolfram Sang
2017-01-04  9:45       ` Jean Delvare
2016-12-29  8:29 ` Michał Kępień
2016-12-29  9:00   ` Pali Rohár
2016-12-29 13:47     ` Michał Kępień
2016-12-29 14:17       ` Pali Rohár
2016-12-29 21:09         ` Michał Kępień
2016-12-29 21:28           ` Pali Rohár
2017-01-03  9:06             ` Benjamin Tissoires
2017-01-03  9:23               ` Pali Rohár
2017-01-03 18:38               ` Dmitry Torokhov
2017-01-03 18:50                 ` Pali Rohár
2017-01-03 18:58                   ` Mario.Limonciello
2017-01-03 19:48                   ` Dmitry Torokhov
2017-01-03 20:05                     ` Pali Rohár
2017-01-03 20:24                       ` Dmitry Torokhov
2017-01-03 20:39                         ` Pali Rohár
2017-01-03 20:59                           ` Dmitry Torokhov
2017-01-04  8:18                             ` Pali Rohár
2017-01-04  9:05                               ` Benjamin Tissoires
2017-01-04  9:18                                 ` Pali Rohár
2017-01-04 10:13                                   ` Benjamin Tissoires
2017-01-04 10:21                                     ` Pali Rohár
2017-01-04 10:32                                       ` Benjamin Tissoires
2017-01-04 11:22                                         ` Pali Rohár
2017-01-04 12:00                                           ` Pali Rohár
2017-01-04 13:02                                             ` Benjamin Tissoires
2017-01-04 16:06                                               ` Pali Rohár
2017-01-04 17:39                                                 ` Benjamin Tissoires
2017-01-04 17:46                                                   ` Wolfram Sang
2017-01-04 17:54                                                     ` Dmitry Torokhov
2017-01-04 21:49                                                       ` Benjamin Tissoires
2017-01-04 21:55                                                         ` Dmitry Torokhov
2017-01-04 21:55                                                       ` Wolfram Sang
2017-01-04 22:00                                                         ` Dmitry Torokhov
2017-01-04 22:03                                                           ` Dmitry Torokhov
2017-01-05  2:20                                                       ` [PATCH] i2c: do not enable fall back to Host Notify by default kbuild test robot
2017-01-05  2:21                                                       ` kbuild test robot
2017-01-05  8:54                                                       ` [PATCH] i2c: i801: Register optional lis3lv02d i2c device on Dell machines Pali Rohár
2017-01-05  9:26                                                         ` Benjamin Tissoires
2017-01-04 18:50                             ` Jean Delvare
2017-01-04  9:53                           ` Andy Shevchenko
2017-01-04 10:25                             ` Benjamin Tissoires
2017-01-04 11:35                               ` Pali Rohár
2017-01-04 12:33                                 ` Benjamin Tissoires
2017-01-03 21:29                     ` Benjamin Tissoires
2017-01-04  6:36                       ` Dmitry Torokhov
2017-01-04  9:13                         ` Benjamin Tissoires
2017-01-04  9:25                           ` Pali Rohár
2017-01-03 20:20                   ` Andy Shevchenko
2017-01-04 10:18               ` Jean Delvare
2017-01-07 12:49         ` Wolfram Sang

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