--- zzzz-none-000/linux-3.10.107/drivers/cpufreq/blackfin-cpufreq.c 2017-06-27 09:49:32.000000000 +0000 +++ vr9-7490-729/linux-3.10.107/drivers/cpufreq/blackfin-cpufreq.c 2021-11-10 11:53:55.000000000 +0000 @@ -20,23 +20,23 @@ /* this is the table of CCLK frequencies, in Hz */ -/* .index is the entry in the auxiliary dpm_state_table[] */ +/* .driver_data is the entry in the auxiliary dpm_state_table[] */ static struct cpufreq_frequency_table bfin_freq_table[] = { { .frequency = CPUFREQ_TABLE_END, - .index = 0, + .driver_data = 0, }, { .frequency = CPUFREQ_TABLE_END, - .index = 1, + .driver_data = 1, }, { .frequency = CPUFREQ_TABLE_END, - .index = 2, + .driver_data = 2, }, { .frequency = CPUFREQ_TABLE_END, - .index = 0, + .driver_data = 0, }, }; @@ -127,41 +127,28 @@ } #endif -static int bfin_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) +static int bfin_target(struct cpufreq_policy *policy, unsigned int index) { #ifndef CONFIG_BF60x unsigned int plldiv; #endif - unsigned int index; - unsigned long cclk_hz; - struct cpufreq_freqs freqs; static unsigned long lpj_ref; static unsigned int lpj_ref_freq; + unsigned int old_freq, new_freq; int ret = 0; #if defined(CONFIG_CYCLES_CLOCKSOURCE) cycles_t cycles; #endif - if (cpufreq_frequency_table_target(policy, bfin_freq_table, target_freq, - relation, &index)) - return -EINVAL; + old_freq = bfin_getfreq_khz(0); + new_freq = bfin_freq_table[index].frequency; - cclk_hz = bfin_freq_table[index].frequency; - - freqs.old = bfin_getfreq_khz(0); - freqs.new = cclk_hz; - - pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n", - cclk_hz, target_freq, freqs.old); - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); #ifndef CONFIG_BF60x plldiv = (bfin_read_PLL_DIV() & SSEL) | dpm_state_table[index].csel; bfin_write_PLL_DIV(plldiv); #else - ret = cpu_set_cclk(policy->cpu, freqs.new * 1000); + ret = cpu_set_cclk(policy->cpu, new_freq * 1000); if (ret != 0) { WARN_ONCE(ret, "cpufreq set freq failed %d\n", ret); return ret; @@ -177,25 +164,16 @@ #endif if (!lpj_ref_freq) { lpj_ref = loops_per_jiffy; - lpj_ref_freq = freqs.old; + lpj_ref_freq = old_freq; } - if (freqs.new != freqs.old) { + if (new_freq != old_freq) { loops_per_jiffy = cpufreq_scale(lpj_ref, - lpj_ref_freq, freqs.new); + lpj_ref_freq, new_freq); } - /* TODO: just test case for cycles clock source, remove later */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - pr_debug("cpufreq: done\n"); return ret; } -static int bfin_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, bfin_freq_table); -} - static int __bfin_cpu_init(struct cpufreq_policy *policy) { @@ -209,24 +187,17 @@ policy->cpuinfo.transition_latency = 50000; /* 50us assumed */ - policy->cur = cclk; - cpufreq_frequency_table_get_attr(bfin_freq_table, policy->cpu); - return cpufreq_frequency_table_cpuinfo(policy, bfin_freq_table); + return cpufreq_table_validate_and_show(policy, bfin_freq_table); } -static struct freq_attr *bfin_freq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver bfin_driver = { - .verify = bfin_verify_speed, - .target = bfin_target, + .verify = cpufreq_generic_frequency_table_verify, + .target_index = bfin_target, .get = bfin_getfreq_khz, .init = __bfin_cpu_init, + .exit = cpufreq_generic_exit, .name = "bfin cpufreq", - .owner = THIS_MODULE, - .attr = bfin_freq_attr, + .attr = cpufreq_generic_attr, }; static int __init bfin_cpu_init(void)