linux-kernel - [PATCH 3/6] cpufreq: Make acpi-cpufreq link first

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Date:	Sun, 20 Jan 2013 11:24:27 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	André Przywara <andre@...rep.de>,
	Leonid Isaev <lisaev@...il.iu.edu>,
	Tom Gundersen <teg@...m.no>, cpufreq@...r.kernel.org,
	linux-acpi@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Borislav Petkov <bp@...e.de>
Subject: [PATCH 3/6] cpufreq: Make acpi-cpufreq link first

From: Borislav Petkov <bp@...e.de>

Now that the majority of x86 CPUs out there are supported by
acpi-cpufreq, we want it to load first and, in the AMD case, drop to
powernow-k8 only on K8s. If, however, both powernow-k8 and acpi-cpufreq
are built-in, the link order matters. Correct that.

Signed-off-by: Borislav Petkov <bp@...e.de>
---
 drivers/cpufreq/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index fadc4d496e2f..24d4a63fd6cf 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -19,11 +19,12 @@ obj-$(CONFIG_GENERIC_CPUFREQ_CPU0)	+= cpufreq-cpu0.o
 ##################################################################################
 # x86 drivers.
 # Link order matters. K8 is preferred to ACPI because of firmware bugs in early
-# K8 systems. ACPI is preferred to all other hardware-specific drivers.
+# K8 systems. This is still the case but acpi-cpufreq errors out so that
+# powernow-k8 can load then. ACPI is preferred to all other hardware-specific drivers.
 # speedstep-* is preferred over p4-clockmod.
 
-obj-$(CONFIG_X86_POWERNOW_K8)		+= powernow-k8.o
 obj-$(CONFIG_X86_ACPI_CPUFREQ)		+= acpi-cpufreq.o mperf.o
+obj-$(CONFIG_X86_POWERNOW_K8)		+= powernow-k8.o
 obj-$(CONFIG_X86_PCC_CPUFREQ)		+= pcc-cpufreq.o
 obj-$(CONFIG_X86_POWERNOW_K6)		+= powernow-k6.o
 obj-$(CONFIG_X86_POWERNOW_K7)		+= powernow-k7.o
-- 
1.8.1.rc3

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