/* * Validate the speed policy. */ static int integrator_verify_policy(struct cpufreq_policy *policy) { struct icst_vco vco; cpufreq_verify_within_cpu_limits(policy); vco = icst_hz_to_vco(&cclk_params, policy->max * 1000); policy->max = icst_hz(&cclk_params, vco) / 1000; vco = icst_hz_to_vco(&cclk_params, policy->min * 1000); policy->min = icst_hz(&cclk_params, vco) / 1000; cpufreq_verify_within_cpu_limits(policy); return 0; }
int icst_clk_set(struct clk *clk, unsigned long rate) { struct icst_vco vco; vco = icst_hz_to_vco(clk->params, rate); clk->rate = icst_hz(clk->params, vco); clk->ops->setvco(clk, vco); return 0; }
long icst_clk_round(struct clk *clk, unsigned long rate) { struct icst_vco vco; vco = icst_hz_to_vco(clk->params, rate); return icst_hz(clk->params, vco); }
* we should be running on the right CPU. */ set_cpus_allowed_ptr(current, cpumask_of(cpu)); BUG_ON(cpu != smp_processor_id()); /* get current setting */ cm_osc = __raw_readl(cm_base + INTEGRATOR_HDR_OSC_OFFSET); if (machine_is_integrator()) { vco.s = (cm_osc >> 8) & 7; } else if (machine_is_cintegrator()) { vco.s = 1; } vco.v = cm_osc & 255; vco.r = 22; freqs.old = icst_hz(&cclk_params, vco) / 1000; /* icst_hz_to_vco rounds down -- so we need the next * larger freq in case of CPUFREQ_RELATION_L. */ if (relation == CPUFREQ_RELATION_L) target_freq += 999; if (target_freq > policy->max) target_freq = policy->max; vco = icst_hz_to_vco(&cclk_params, target_freq * 1000); freqs.new = icst_hz(&cclk_params, vco) / 1000; if (freqs.old == freqs.new) { set_cpus_allowed_ptr(current, &cpus_allowed); return 0; }