linux-kernel - Re: [PATCH] Add intel drm blacklist to intel_opregion

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Message-ID: <20100824142026.GA16200@srcf.ucam.org>
Date:	Tue, 24 Aug 2010 15:20:26 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Joey Lee <jlee@...ell.com>
Cc:	trenn@...e.de, gregkh@...e.de, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, Dennis.Jansen@....de
Subject: Re: [PATCH] Add intel drm blacklist to intel_opregion_present
	detect

On Tue, Aug 24, 2010 at 04:08:59AM -0600, Joey Lee wrote:
>  drivers/gpu/Makefile       |    2 +-
>  drivers/gpu/stub/Kconfig   |   13 +++++++++++++
>  drivers/gpu/stub/Makefile  |    1 +
>  drivers/gpu/stub/poulsbo.c |   44 ++++++++++++++++++++++++++++++++++++++++++++
>  drivers/video/Kconfig      |    2 ++
>  5 files changed, 61 insertions(+), 1 deletions(-)
>  create mode 100644 drivers/gpu/stub/Kconfig
>  create mode 100644 drivers/gpu/stub/Makefile
>  create mode 100644 drivers/gpu/stub/poulsbo.c
> 
> diff --git a/drivers/gpu/Makefile b/drivers/gpu/Makefile
> index 30879df..cc92778 100644
> --- a/drivers/gpu/Makefile
> +++ b/drivers/gpu/Makefile
> @@ -1 +1 @@
> -obj-y			+= drm/ vga/
> +obj-y			+= drm/ vga/ stub/
> diff --git a/drivers/gpu/stub/Kconfig b/drivers/gpu/stub/Kconfig
> new file mode 100644
> index 0000000..88fd919
> --- /dev/null
> +++ b/drivers/gpu/stub/Kconfig
> @@ -0,0 +1,13 @@
> +config STUB_POULSBO
> +	tristate "Intel Poulsbo Stub Driver"
> +        default m
> +        # Poulsbo stub depends on ACPI_VIDEO when ACPI is enabled
> +        # but for select to work, need to select ACPI_VIDEO's dependencies, ick
> +        select ACPI_VIDEO if ACPI
> +	help
> +	  Choose this option if you have a system that has Intel Poulsbo
> +	  integrated graphics. If M is selected, the module will be called
> +	  Poulsbo. This driver is a stub driver for Poulsbo that will call

Really? I suspect it'll be called poulsbo.ko :)

> +static int __init poulsbo_init(void)
> +{
> +	printk(KERN_INFO "poulsbo: stub driver load.\n");

Don't really need to printk here

> +	return acpi_video_register();
> +}
> +
> +static void __exit poulsbo_cleanup(void)
> +{
> +	acpi_video_unregister();
> +	printk(KERN_INFO "poulsbo: stub driver unloaded.\n");

Or here - we'll get the ACPI video output. Other than that, looks good.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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