X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Fcpufreq%2Fpcc-cpufreq.c;h=1c0f1067af73318387d3d3e133e3d67a990eac61;hb=398b60a8de46adfbd43aa4c01753acf0161ec764;hp=e2b4f40ff69acaaff51f6461caafd4c8a23bdd16;hpb=90ba0813db2c96c82e9ba24f30fb96a24a2cd3a8;p=~andy%2Flinux diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c index e2b4f40ff69..1c0f1067af7 100644 --- a/drivers/cpufreq/pcc-cpufreq.c +++ b/drivers/cpufreq/pcc-cpufreq.c @@ -213,6 +213,7 @@ static int pcc_cpufreq_target(struct cpufreq_policy *policy, cpu, target_freq, (pcch_virt_addr + pcc_cpu_data->input_offset)); + freqs.old = policy->cur; freqs.new = target_freq; cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); @@ -228,25 +229,20 @@ static int pcc_cpufreq_target(struct cpufreq_policy *policy, memset_io((pcch_virt_addr + pcc_cpu_data->input_offset), 0, BUF_SZ); status = ioread16(&pcch_hdr->status); + iowrite16(0, &pcch_hdr->status); + + cpufreq_notify_post_transition(policy, &freqs, status != CMD_COMPLETE); + spin_unlock(&pcc_lock); + if (status != CMD_COMPLETE) { pr_debug("target: FAILED for cpu %d, with status: 0x%x\n", cpu, status); - goto cmd_incomplete; + return -EINVAL; } - iowrite16(0, &pcch_hdr->status); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); pr_debug("target: was SUCCESSFUL for cpu %d\n", cpu); - spin_unlock(&pcc_lock); return 0; - -cmd_incomplete: - freqs.new = freqs.old; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - iowrite16(0, &pcch_hdr->status); - spin_unlock(&pcc_lock); - return -EINVAL; } static int pcc_get_offset(int cpu)