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| author | Ashwin Chaugule <ashwin.chaugule@linaro.org> | 2015-11-19 18:40:07 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-11-24 00:21:18 +0300 |
| commit | 9dc17917733f5a53ef970ac95a48d2dfb7dc7202 (patch) | |
| tree | 6a672f35036a9b4985662e22caf04a80426948b2 /drivers/cpufreq/cppc_cpufreq.c | |
| parent | d29d67357db8dad08f97162bbeb51e4975ee67fd (diff) | |
| download | linux-9dc17917733f5a53ef970ac95a48d2dfb7dc7202.tar.xz | |
cpufreq: CPPC: Initialize and check CPUFreq CPU co-ord type correctly
The CPU policy struct indicates the co-ordination type
for all CPUs of a common freq domain. Initialize it
correctly using the CPU specific data gathered from
CPPC ACPI lib via acpi_get_psd_map().
The PSD object is optional, so the cpu->shared_type
can also be 0. So instead of assuming any value other
than SW_ANY(0xFD) is unsupported, explictly check
if shared_type is SW_ALL and then bail.
Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/cppc_cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/cppc_cpufreq.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c index e8cb334094b0..7c0bdfb1a2ca 100644 --- a/drivers/cpufreq/cppc_cpufreq.c +++ b/drivers/cpufreq/cppc_cpufreq.c @@ -98,10 +98,11 @@ static int cppc_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->max = cpu->perf_caps.highest_perf; policy->cpuinfo.min_freq = policy->min; policy->cpuinfo.max_freq = policy->max; + policy->shared_type = cpu->shared_type; if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) cpumask_copy(policy->cpus, cpu->shared_cpu_map); - else { + else if (policy->shared_type == CPUFREQ_SHARED_TYPE_ALL) { /* Support only SW_ANY for now. */ pr_debug("Unsupported CPU co-ord type\n"); return -EFAULT; |