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cpufreq: ppc-corenet-cpu-freq: do_div use quotient

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Commit 6712d29319 (cpufreq: ppc-corenet-cpufreq: Fix __udivdi3 modpost
error) used the remainder from do_div instead of the quotient.  Fix that
and add one to ensure minimum is met.

Fixes: 6712d29319 (cpufreq: ppc-corenet-cpufreq: Fix __udivdi3 modpost error)
Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Cc: 3.15+ <stable@vger.kernel.org> # 3.15+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Ed Swarthout 2014-06-05 18:56:17 -05:00 committed by Rafael J. Wysocki
parent 57aa5ea0ee
commit 906fe03314
1 changed files with 5 additions and 4 deletions
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9
drivers/cpufreq/ppc-corenet-cpufreq.c
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@ -138,7 +138,7 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy)
struct cpufreq_frequency_table *table;
struct cpu_data *data;
unsigned int cpu = policy->cpu;
u64 transition_latency_hz;
u64 u64temp;
np = of_get_cpu_node(cpu, NULL);
if (!np)
@ -206,9 +206,10 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy)
for_each_cpu(i, per_cpu(cpu_mask, cpu))
per_cpu(cpu_data, i) = data;
transition_latency_hz = 12ULL * NSEC_PER_SEC;
policy->cpuinfo.transition_latency =
do_div(transition_latency_hz, fsl_get_sys_freq());
/* Minimum transition latency is 12 platform clocks */
u64temp = 12ULL * NSEC_PER_SEC;
do_div(u64temp, fsl_get_sys_freq());
policy->cpuinfo.transition_latency = u64temp + 1;
of_node_put(np);