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tools/power/x86/intel-speed-select: Process mailbox read error for core-power

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Some older kernels don't support reading core-power status. In that case
mailbox command fails. So, display core-power status as "unknown" instead
of supported.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Srinivas Pandruvada 2021-03-04 17:45:14 -08:00 committed by Hans de Goede
parent 2e70b710f3
commit b84733a1c5
1 changed files with 4 additions and 0 deletions
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4
tools/power/x86/intel-speed-select/isst-config.c
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@ -959,6 +959,10 @@ static void isst_print_extended_platform_info(void)
fprintf(outf, "Intel(R) SST-BF (feature base-freq) is not supported\n");
ret = isst_read_pm_config(i, &cp_state, &cp_cap);
if (ret) {
fprintf(outf, "Intel(R) SST-CP (feature core-power) status is unknown\n");
return;
}
if (cp_cap)
fprintf(outf, "Intel(R) SST-CP (feature core-power) is supported\n");
else