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From: Linus Walleij <linus.walleij@linaro.org>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	linux-kernel@vger.kernel.org, lenb@kernel.org,
	rafael.j.wysocki@intel.com, broonie@opensource.wolfsonmicro.com,
	grant.likely@secretlab.ca, khali@linux-fr.org,
	ben-linux@fluff.org, w.sang@pengutronix.de,
	linux-acpi@vger.kernel.org
Subject: Re: [PATCH 1/3] gpio / ACPI: add ACPI support
Date: Mon, 5 Nov 2012 15:40:14 +0100	[thread overview]
Message-ID: <CACRpkda6jNsKwowdJZ6d7kua5uBPH2tZT8Ka9vheEiPjvEJuUg@mail.gmail.com> (raw)
In-Reply-To: <2396674.M1Yl70Z09T@vostro.rjw.lan>

On Mon, Nov 5, 2012 at 2:50 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> On Monday, November 05, 2012 02:28:45 PM Linus Walleij wrote:
>> But since Grant merged the gpiolib-of.c thing and is still the
>> main maintainer I can atleast chicken out by referring to him
>> this time ... hit me back if he doesn't respond and I will
>> have to refactor the world or something.
>
> No need to be grumpy. :-)

Just a little bit ... sorry.

> I forgot to mention that we want to hook up _existing_ drivers to those things,
> and they already use the global GPIO numbers, don't they?

Yes they do, usually this is either passed from the platform using platform
data or handled by device tree lookups to individual drivers.

So you will have to modify each such existing driver to do ACPI
probe akin to the DT codepath and call acpi_get_gpio() on every pin they
need going forward. But that is the plan I guess.

Yours,
Linus Walleij

  reply	other threads:[~2012-11-05 14:40 UTC|newest]

Thread overview: 127+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-03  7:46 [PATCH 0/3] ACPI 5 support for GPIO, SPI and I2C Mika Westerberg
2012-11-03  7:46 ` [PATCH 1/3] gpio / ACPI: add ACPI support Mika Westerberg
2012-11-05 11:53   ` Linus Walleij
2012-11-05 12:14     ` Mathias Nyman
2012-11-05 12:46       ` Rafael J. Wysocki
2012-11-05 13:11         ` Linus Walleij
2012-11-05 13:19           ` Rafael J. Wysocki
2012-11-05 13:28             ` Linus Walleij
2012-11-05 13:50               ` Rafael J. Wysocki
2012-11-05 14:40                 ` Linus Walleij [this message]
2012-11-06  9:39                   ` Mika Westerberg
2012-11-06 10:15                     ` Linus Walleij
2012-11-07  8:54                       ` Mika Westerberg
2012-11-08 15:55   ` Grant Likely
2012-11-08 19:38     ` Mika Westerberg
2012-11-09 14:11       ` Mathias Nyman
2012-11-09 14:18         ` Grant Likely
2012-11-09 15:05           ` Mathias Nyman
2012-11-09 15:46             ` Grant Likely
2012-11-11  9:50               ` Mika Westerberg
2012-11-03  7:46 ` [PATCH 2/3] spi / ACPI: add ACPI enumeration support Mika Westerberg
2012-11-03 19:42   ` Bjorn Helgaas
2012-11-03 20:13     ` Mika Westerberg
2012-11-03 20:59       ` Rafael J. Wysocki
2012-11-05 10:31         ` Rafael J. Wysocki
2012-11-05 10:56           ` Mika Westerberg
2012-11-05 10:56             ` Mark Brown
2012-11-05 12:02               ` Mika Westerberg
2012-11-05 12:23                 ` Jean Delvare
2012-11-05 12:59                   ` Rafael J. Wysocki
2012-11-05 13:15                     ` Mika Westerberg
2012-11-05 13:20                       ` Linus Walleij
2012-11-05 13:43                         ` Mika Westerberg
2012-11-05 14:03                         ` Jean Delvare
2012-11-05 14:19                           ` Rafael J. Wysocki
2012-11-05 14:53                             ` Mika Westerberg
2012-11-05 15:19                               ` Jean Delvare
2012-11-05 17:12                                 ` Mika Westerberg
2012-11-05 17:43                                   ` Bjorn Helgaas
2012-11-05 18:08                                     ` Mika Westerberg
2012-11-05 17:49                                   ` Jean Delvare
2012-11-05 20:42                           ` Linus Walleij
2012-11-06  8:11                 ` Mark Brown
2012-11-05 16:54           ` Bjorn Helgaas
2012-11-06 13:43             ` Rafael J. Wysocki
2012-11-06 20:35               ` Bjorn Helgaas
2012-11-06 22:28                 ` Rafael J. Wysocki
2012-11-06 22:36                   ` Rafael J. Wysocki
2012-11-07  9:58                     ` Mika Westerberg
2012-11-07 11:14                       ` Rafael J. Wysocki
2012-11-07 13:05                         ` Mika Westerberg
2012-11-08  0:46                           ` Rafael J. Wysocki
2012-11-08 20:20                             ` Mika Westerberg
2012-11-08 20:54                               ` Rafael J. Wysocki
2012-11-08 18:05                       ` Grant Likely
2012-11-08 21:06                         ` Rafael J. Wysocki
2012-11-08 21:34                           ` Grant Likely
2012-11-05 10:54       ` Mark Brown
2012-11-03 20:39     ` Rafael J. Wysocki
2012-11-05 16:54       ` Bjorn Helgaas
2012-11-06 13:16         ` Rafael J. Wysocki
2012-11-06 20:53           ` Bjorn Helgaas
2012-11-06 22:18             ` Rafael J. Wysocki
2012-11-07  9:56               ` Mika Westerberg
2012-11-08 19:32                 ` Bjorn Helgaas
2012-11-08 20:04                   ` Mika Westerberg
2012-11-09 15:11                     ` Bjorn Helgaas
2012-11-09 15:45                       ` Grant Likely
2012-11-09 16:35                         ` Bjorn Helgaas
2012-11-09 16:43                           ` Grant Likely
2012-11-09 16:48                             ` Mark Brown
2012-11-09 16:53                             ` Bjorn Helgaas
2012-11-10 11:10                               ` Rafael J. Wysocki
2012-11-10 11:16                                 ` Grant Likely
2012-11-10 17:14                                 ` Bjorn Helgaas
2012-11-10 19:40                                   ` Rafael J. Wysocki
2012-11-05 10:54   ` Mark Brown
2012-11-05 11:03     ` Mika Westerberg
2012-11-05 11:13       ` Mark Brown
2012-11-08 18:48   ` Grant Likely
2012-11-09  3:50     ` Mika Westerberg
2012-11-03  7:46 ` [PATCH 3/3] i2c " Mika Westerberg
2012-11-03 21:52   ` Jean Delvare
2012-11-04  7:23     ` Mika Westerberg
2012-11-04  8:50       ` Jean Delvare
2012-11-04 10:50         ` Mika Westerberg
2012-11-08 18:58   ` Grant Likely
2012-11-09  3:51     ` Mika Westerberg
2012-11-04 18:29 ` [PATCH 0/3] ACPI 5 support for GPIO, SPI and I2C Linus Walleij
2012-11-05  9:23   ` Mika Westerberg
2012-11-12 11:51 ` [PATCH 0/3] Centralized parsing of ACPI device resources (was: Re: [PATCH 0/3] ACPI 5 support for GPIO, SPI and I2C) Rafael J. Wysocki
2012-11-12 12:00   ` [PATCH 1/3] ACPI: Move device resources interpretation code from PNP to ACPI core Rafael J. Wysocki
2012-11-12 13:27     ` Mika Westerberg
2012-11-12 20:25       ` [Update][PATCH " Rafael J. Wysocki
2012-11-12 12:01   ` [PATCH 2/3] ACPI / platform: Use common ACPI device resource parsing routines Rafael J. Wysocki
2012-11-12 12:02   ` [PATCH 3/3] ACPI: Evaluate _CRS while creating device node objects Rafael J. Wysocki
2012-11-12 14:46     ` Mika Westerberg
2012-11-12 21:03       ` Rafael J. Wysocki
2012-11-13  7:12         ` Mika Westerberg
2012-11-13 12:06           ` [Replacement][PATCH 3/3] Rafael J. Wysocki
2012-11-13 14:16             ` Mika Westerberg
2012-11-13 15:15               ` Rafael J. Wysocki
2012-11-13 15:18                 ` Mika Westerberg
2012-11-13 15:28                   ` Rafael J. Wysocki
2012-11-13 15:37                     ` Mika Westerberg
2012-11-13 16:34           ` [PATCH 3/3] ACPI: Evaluate _CRS while creating device node objects Moore, Robert
2012-11-13 16:34             ` Moore, Robert
2012-11-13 20:44             ` Rafael J. Wysocki
2012-11-13 20:44               ` Rafael J. Wysocki
2012-11-13 22:06               ` Moore, Robert
2012-11-13 22:06                 ` Moore, Robert
2012-11-13 22:56                 ` Rafael J. Wysocki
2012-11-13 22:56                   ` Rafael J. Wysocki
2012-11-14  2:23                   ` Moore, Robert
2012-11-14  2:23                     ` Moore, Robert
2012-11-14  9:18                     ` Rafael J. Wysocki
2012-11-14  9:18                       ` Rafael J. Wysocki
2012-11-14  9:32                       ` Rafael J. Wysocki
2012-11-14  9:32                         ` Rafael J. Wysocki
2012-11-14 14:20                         ` Moore, Robert
2012-11-14 14:20                           ` Moore, Robert
2012-11-13 20:51   ` [PATCH 0/3 rev 2] Centralized parsing of ACPI device resources Rafael J. Wysocki
2012-11-13 20:55     ` [PATCH 1/3 rev 2] ACPI: Move device resources interpretation code from PNP to ACPI core Rafael J. Wysocki
2012-11-13 20:55     ` [PATCH 2/3 rev 2] ACPI / platform: Use common ACPI device resource parsing routines Rafael J. Wysocki
2012-11-13 20:56     ` [PATCH 3/3 rev 2] ACPI: Centralized processing of ACPI device resources Rafael J. Wysocki
2012-11-14  9:52     ` [PATCH 0/3 rev 2] Centralized parsing " Mika Westerberg
2012-11-14 10:08       ` Rafael J. Wysocki

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