From: Matthew Garrett <mjg59@srcf.ucam.org>
To: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] platform/x86: Add driver for Apple gmux device
Date: Thu, 15 Mar 2012 16:09:03 +0000 [thread overview]
Message-ID: <20120315160903.GA7502@srcf.ucam.org> (raw)
In-Reply-To: <20120315154756.GE9673@ubuntu-macmini>
On Thu, Mar 15, 2012 at 10:47:56AM -0500, Seth Forshee wrote:
> Turns out that acpi_video0 does work under Windows, and it also works
> under Linux depending on how the OS is booted. Doing a boot camp style
> boot gives us working acpi_video0 and apple_bl backlights. acpi_video1
> doesn't show up in a legacy boot situation, as evaluating _BCM gives an
> error.
>
> Under EFI boot, both acpi_video backlights show up but neither works.
> The readback verify in apple_bl's probe fails, so that one doesn't show
> up. Only gmux_backlight actually works.
Ok, that's consistent. You can probably handle that case by just calling
acpi_video_unregister() in gmux. Something like your patch looks fine
for the apple_bl case.
--
Matthew Garrett | mjg59@srcf.ucam.org
prev parent reply other threads:[~2012-03-15 16:09 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-16 20:34 [PATCH] platform/x86: Add driver for Apple gmux device Seth Forshee
2012-02-22 14:37 ` [PATCH v2] " Seth Forshee
2012-02-29 17:46 ` Grant Likely
2012-02-29 17:53 ` Seth Forshee
2012-02-29 18:43 ` Grant Likely
2012-02-29 19:50 ` Seth Forshee
2012-02-29 21:23 ` Grant Likely
2012-02-29 22:08 ` Seth Forshee
2012-02-29 22:32 ` Grant Likely
2012-02-29 22:56 ` Seth Forshee
2012-03-01 9:19 ` Corentin Chary
2012-03-01 14:53 ` Seth Forshee
2012-03-01 15:15 ` Corentin Chary
2012-03-05 22:06 ` Seth Forshee
2012-03-05 22:10 ` Josh Boyer
2012-03-05 22:37 ` Seth Forshee
2012-03-06 12:52 ` Josh Boyer
2012-03-12 14:21 ` Matthew Garrett
2012-03-12 14:57 ` Seth Forshee
2012-03-12 15:07 ` Matthew Garrett
2012-03-12 15:18 ` Seth Forshee
2012-03-12 15:22 ` Matthew Garrett
2012-03-12 15:40 ` Seth Forshee
2012-03-15 15:47 ` Seth Forshee
2012-03-15 16:09 ` Matthew Garrett [this message]
Reply instructions:
You may reply publicly 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=20120315160903.GA7502@srcf.ucam.org \
--to=mjg59@srcf.ucam.org \
--cc=linux-kernel@vger.kernel.org \
--cc=platform-driver-x86@vger.kernel.org \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.