cpufreq: acpi-cpufreq: Clean up hot plug notifier callback
This driver has two issues. First, it tries to fiddle with the hot plugged CPU's MSR on the UP_PREPARE event, at a time when the CPU is not yet online. Second, the driver sets the "boost-disable" bit for a CPU when going down, but does not clear the bit again if the CPU comes up again due to DOWN_FAILED. This patch fixes the issues by changing the driver to react to the ONLINE/DOWN_FAILED events instead of UP_PREPARE. As an added benefit, the driver also becomes symmetric with respect to the hot plug mechanism. Signed-off-by:Richard Cochran <rcochran@linutronix.de> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com>
parent
fdfdb2b1
Please register or sign in to comment