linux-kernel - [PATCH] powernow-k8: depend on acpi-processor for SMP systems

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Message-Id: <20070516235050.9B4237B409F@zog.reactivated.net>
Date:	Thu, 17 May 2007 00:50:50 +0100 (BST)
From:	Daniel Drake <dsd@...too.org>
To:	davej@...hat.com
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] powernow-k8: depend on acpi-processor for SMP systems

powernow-k8 uses PSB BIOS tables to read frequency info on UP systems, but
on SMP it requires the acpi-processor driver. Kconfig should be updated
accordingly to avoid the issues that users are running into.

http://bugzilla.kernel.org/show_bug.cgi?id=8075
https://bugs.gentoo.org/show_bug.cgi?id=178585

Signed-off-by: Daniel Drake <dsd@...too.org>

Index: linux/arch/i386/kernel/cpu/cpufreq/Kconfig
===================================================================
--- linux.orig/arch/i386/kernel/cpu/cpufreq/Kconfig
+++ linux/arch/i386/kernel/cpu/cpufreq/Kconfig
@@ -81,6 +81,7 @@ config X86_POWERNOW_K7_ACPI
 config X86_POWERNOW_K8
 	tristate "AMD Opteron/Athlon64 PowerNow!"
 	select CPU_FREQ_TABLE
+	select ACPI_PROCESSOR if SMP
 	depends on EXPERIMENTAL
 	help
 	  This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors.
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