powerpc/powernv/cpufreq: Fix the frequency read by /proc/cpuinfo

[ Upstream commit cd77b5ce20 ]

The call to /proc/cpuinfo in turn calls cpufreq_quick_get() which
returns the last frequency requested by the kernel, but may not
reflect the actual frequency the processor is running at. This patch
makes a call to cpufreq_get() instead which returns the current
frequency reported by the hardware.

Fixes: fb5153d05a ("powerpc: powernv: Implement ppc_md.get_proc_freq()")
Signed-off-by: Shriya <shriyak@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shriya
2017-10-13 10:06:41 +05:30
committed by Greg Kroah-Hartman
parent 27a12c783e
commit f9565e1e07

View File

@@ -319,7 +319,7 @@ static unsigned long pnv_get_proc_freq(unsigned int cpu)
{
unsigned long ret_freq;
ret_freq = cpufreq_quick_get(cpu) * 1000ul;
ret_freq = cpufreq_get(cpu) * 1000ul;
/*
* If the backend cpufreq driver does not exist,