[PATCH 3/3] SRU LP69925 Hardy - CPU fan stops at kernel load

[Stefan Bader]

Steve Conklin wrote:
> From dfa2251289caecac1f74ffbaa074550d6f3834d6 Mon Sep 17 00:00:00 2001
> From: Zhao Yakui <yakui.zhao at intel.com>
> Date: Mon, 11 Aug 2008 14:59:59 +0800
> Subject: [PATCH] UBUNTU: ACPI: Add DMI check to disable power state check in power transition
> 
> Bug: 69925
> upstream commit 6415e12
> 
> ACPI: Add DMI check to disable power state check in power transition
> 
> Add the DMI check to disable power check in the course of device power
> transistion.
> 
> http://bugzilla.kernel.org/show_bug.cgi?id=11000
> 
> Signed-off-by: Zhao Yakui <yakui.zhao at intel.com>
> Signed-off-by: Li Shaohua <shaohua.li at intel.com>
> Signed-off-by: Andi Kleen <ak at linux.intel.com>
> Signed-off-by: Len Brown <len.brown at intel.com>
> Signed-off-by: Steve Conklin <sconklin at canonical.com>
> ---
>  drivers/acpi/bus.c |   23 ++++++++++++++++++++++-
>  1 files changed, 22 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
> index 74155d1..d417358 100644
> --- a/drivers/acpi/bus.c
> +++ b/drivers/acpi/bus.c
> @@ -49,6 +49,23 @@ EXPORT_SYMBOL(acpi_root_dir);
>  
>  #define STRUCT_TO_INT(s)	(*((int*)&s))
>  
> +static int set_power_nocheck(const struct dmi_system_id *id)
> +{
> +	printk(KERN_NOTICE PREFIX "%s detected - "
> +		"disable power check in power transistion\n", id->ident);
> +	acpi_power_nocheck = 1;
> +	return 0;
> +}
> +static struct dmi_system_id __cpuinitdata power_nocheck_dmi_table[] = {
> +	{
> +	set_power_nocheck, "HP Pavilion 05", {
> +	DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
> +	DMI_MATCH(DMI_SYS_VENDOR, "HP Pavilion 05"),
> +	DMI_MATCH(DMI_PRODUCT_VERSION, "2001211RE101GLEND") }, NULL},
> +	{},
> +};
> +
> +
>  /* --------------------------------------------------------------------------
>                                  Device Management
>     -------------------------------------------------------------------------- */
> @@ -786,7 +803,11 @@ static int __init acpi_init(void)
>  		}
>  	} else
>  		disable_acpi();
> -
> +	/*
> +	 * If the laptop falls into the DMI check table, the power state check
> +	 * will be disabled in the course of device power transistion.
> +	 */
> +	dmi_check_system(power_nocheck_dmi_table);
>  	return result;
>  }
>  

ACK

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