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authorVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>2006-10-03 12:34:28 -0700
committerDave Jones <davej@redhat.com>2006-10-15 19:57:10 -0400
commit83d0515bbb10c7a3e52eee697d1032e447291eda (patch)
treedba32263b1d8374422d44772455e4acbea75de3a /Documentation
parentdde9f7ba60adac0cade262ab9b17654e93c626e2 (diff)
[CPUFREQ][4/8] acpi-cpufreq: Mark speedstep-centrino ACPI as deprecated
Mark ACPI hooks in speedstep-centrino as deprecated. Change the order in which speedstep-centrino and acpi-cpufreq (when both are in kernel) will be added. First driver to be tried is now acpi-cpufreq, followed by speedstep-centrino. Add a note in feature-removal-schedule to mark this deprecation. Signed-off-by: Denis Sadykov <denis.m.sadykov@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/feature-removal-schedule.txt22
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 24f3c63b301..7ebca0775ec 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -280,3 +280,25 @@ Why: Orphaned for ages. SMP bugs long unfixed. Few users left
Who: Jeff Garzik <jeff@garzik.org>
---------------------------
+
+What: ACPI hooks (X86_SPEEDSTEP_CENTRINO_ACPI) in speedstep-centrino driver
+When: December 2006
+Why: Speedstep-centrino driver with ACPI hooks and acpi-cpufreq driver are
+ functionally very much similar. They talk to ACPI in same way. Only
+ difference between them is the way they do frequency transitions.
+ One uses MSRs and the other one uses IO ports. Functionaliy of
+ speedstep_centrino with ACPI hooks is now merged into acpi-cpufreq.
+ That means one common driver will support all Intel Enhanced Speedstep
+ capable CPUs. That means less confusion over name of
+ speedstep-centrino driver (with that driver supposed to be used on
+ non-centrino platforms). That means less duplication of code and
+ less maintenance effort and no possibility of these two drivers
+ going out of sync.
+ Current users of speedstep_centrino with ACPI hooks are requested to
+ switch over to acpi-cpufreq driver. speedstep-centrino will continue
+ to work using older non-ACPI static table based scheme even after this
+ date.
+
+Who: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
+
+---------------------------