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

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[ Upstream commit cd77b5ce208c153260ed7882d8910f2395bfaabd ]

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 ef476a74f8
commit f46b4bab4e
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/platforms/powernv/setup.c
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@ -295,7 +295,7 @@ 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,