diff options
author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2020-05-21 00:54:36 +0200 |
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committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2020-05-21 00:54:36 +0200 |
commit | 135d39dcedcedd1f44ea0bba52f15ac5922c114f (patch) | |
tree | 12379fc8ef7489eaca1c7245f8bd6af74c619a8f /drivers/cpufreq | |
parent | 187764bd111b27783b6d68ffb3b3dbb3a9bafd38 (diff) | |
parent | 1279cd128bba968ebe0a2df7f7ae38bae90250ef (diff) |
Merge remote-tracking branch 'remotes/fslc/4.9-2.3.x-imx' into toradex_4.9-2.3.x-imx-next
Conflicts:
sound/soc/codecs/sgtl5000.c
sound/soc/fsl/imx-sgtl5000.c
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r-- | drivers/cpufreq/cpufreq.c | 27 | ||||
-rw-r--r-- | drivers/cpufreq/cpufreq_governor.c | 2 | ||||
-rw-r--r-- | drivers/cpufreq/intel_pstate.c | 2 | ||||
-rw-r--r-- | drivers/cpufreq/pasemi-cpufreq.c | 24 | ||||
-rw-r--r-- | drivers/cpufreq/pmac32-cpufreq.c | 2 | ||||
-rw-r--r-- | drivers/cpufreq/powernv-cpufreq.c | 6 | ||||
-rw-r--r-- | drivers/cpufreq/ppc_cbe_cpufreq.c | 1 |
7 files changed, 39 insertions, 25 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index a38a23f0b3f4..86d48f8c6a2e 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -875,6 +875,9 @@ static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf) struct freq_attr *fattr = to_attr(attr); ssize_t ret; + if (!fattr->show) + return -EIO; + down_read(&policy->rwsem); ret = fattr->show(policy, buf); up_read(&policy->rwsem); @@ -889,6 +892,9 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr, struct freq_attr *fattr = to_attr(attr); ssize_t ret = -EINVAL; + if (!fattr->store) + return -EIO; + get_online_cpus(); if (cpu_online(policy->cpu)) { @@ -1065,6 +1071,7 @@ static struct cpufreq_policy *cpufreq_policy_alloc(unsigned int cpu) cpufreq_global_kobject, "policy%u", cpu); if (ret) { pr_err("%s: failed to init policy->kobj: %d\n", __func__, ret); + kobject_put(&policy->kobj); goto err_free_real_cpus; } @@ -1645,6 +1652,9 @@ void cpufreq_resume(void) if (!cpufreq_driver) return; + if (unlikely(!cpufreq_suspended)) + return; + cpufreq_suspended = false; if (!has_target() && !cpufreq_driver->resume) @@ -2439,6 +2449,13 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data) if (cpufreq_disabled()) return -ENODEV; + /* + * The cpufreq core depends heavily on the availability of device + * structure, make sure they are available before proceeding further. + */ + if (!get_cpu_device(0)) + return -EPROBE_DEFER; + if (!driver_data || !driver_data->verify || !driver_data->init || !(driver_data->setpolicy || driver_data->target_index || driver_data->target) || @@ -2542,14 +2559,6 @@ int cpufreq_unregister_driver(struct cpufreq_driver *driver) } EXPORT_SYMBOL_GPL(cpufreq_unregister_driver); -/* - * Stop cpufreq at shutdown to make sure it isn't holding any locks - * or mutexes when secondary CPUs are halted. - */ -static struct syscore_ops cpufreq_syscore_ops = { - .shutdown = cpufreq_suspend, -}; - struct kobject *cpufreq_global_kobject; EXPORT_SYMBOL(cpufreq_global_kobject); @@ -2561,8 +2570,6 @@ static int __init cpufreq_core_init(void) cpufreq_global_kobject = kobject_create_and_add("cpufreq", &cpu_subsys.dev_root->kobj); BUG_ON(!cpufreq_global_kobject); - register_syscore_ops(&cpufreq_syscore_ops); - return 0; } core_initcall(cpufreq_core_init); diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index 38d1a8216084..32c9524a6ec5 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -449,6 +449,8 @@ int cpufreq_dbs_governor_init(struct cpufreq_policy *policy) /* Failure, so roll back. */ pr_err("initialization failed (dbs_data kobject init error %d)\n", ret); + kobject_put(&dbs_data->attr_set.kobj); + policy->governor_data = NULL; if (!have_governor_per_policy()) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index f690085b1ad9..4fe999687415 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -1413,7 +1413,7 @@ static void intel_pstate_update_util(struct update_util_data *data, u64 time, static const struct x86_cpu_id intel_pstate_cpu_ids[] = { ICPU(INTEL_FAM6_SANDYBRIDGE, core_params), ICPU(INTEL_FAM6_SANDYBRIDGE_X, core_params), - ICPU(INTEL_FAM6_ATOM_SILVERMONT1, silvermont_params), + ICPU(INTEL_FAM6_ATOM_SILVERMONT, silvermont_params), ICPU(INTEL_FAM6_IVYBRIDGE, core_params), ICPU(INTEL_FAM6_HASWELL_CORE, core_params), ICPU(INTEL_FAM6_BROADWELL_CORE, core_params), diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c index 35dd4d7ffee0..991b6a3062c4 100644 --- a/drivers/cpufreq/pasemi-cpufreq.c +++ b/drivers/cpufreq/pasemi-cpufreq.c @@ -145,10 +145,19 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy) int err = -ENODEV; cpu = of_get_cpu_node(policy->cpu, NULL); - if (!cpu) goto out; + max_freqp = of_get_property(cpu, "clock-frequency", NULL); + of_node_put(cpu); + if (!max_freqp) { + err = -EINVAL; + goto out; + } + + /* we need the freq in kHz */ + max_freq = *max_freqp / 1000; + dn = of_find_compatible_node(NULL, NULL, "1682m-sdc"); if (!dn) dn = of_find_compatible_node(NULL, NULL, @@ -184,16 +193,6 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy) } pr_debug("init cpufreq on CPU %d\n", policy->cpu); - - max_freqp = of_get_property(cpu, "clock-frequency", NULL); - if (!max_freqp) { - err = -EINVAL; - goto out_unmap_sdcpwr; - } - - /* we need the freq in kHz */ - max_freq = *max_freqp / 1000; - pr_debug("max clock-frequency is at %u kHz\n", max_freq); pr_debug("initializing frequency table\n"); @@ -211,9 +210,6 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy) return cpufreq_generic_init(policy, pas_freqs, get_gizmo_latency()); -out_unmap_sdcpwr: - iounmap(sdcpwr_mapbase); - out_unmap_sdcasr: iounmap(sdcasr_mapbase); out: diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c index ff44016ea031..641f8021855a 100644 --- a/drivers/cpufreq/pmac32-cpufreq.c +++ b/drivers/cpufreq/pmac32-cpufreq.c @@ -551,6 +551,7 @@ static int pmac_cpufreq_init_7447A(struct device_node *cpunode) volt_gpio_np = of_find_node_by_name(NULL, "cpu-vcore-select"); if (volt_gpio_np) voltage_gpio = read_gpio(volt_gpio_np); + of_node_put(volt_gpio_np); if (!voltage_gpio){ pr_err("missing cpu-vcore-select gpio\n"); return 1; @@ -587,6 +588,7 @@ static int pmac_cpufreq_init_750FX(struct device_node *cpunode) if (volt_gpio_np) voltage_gpio = read_gpio(volt_gpio_np); + of_node_put(volt_gpio_np); pvr = mfspr(SPRN_PVR); has_cpu_l2lve = !((pvr & 0xf00) == 0x100); diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c index a1d7fa48229d..b4fc65512aad 100644 --- a/drivers/cpufreq/powernv-cpufreq.c +++ b/drivers/cpufreq/powernv-cpufreq.c @@ -955,6 +955,12 @@ static int init_chip_info(void) static inline void clean_chip_info(void) { + int i; + + /* flush any pending work items */ + if (chips) + for (i = 0; i < nr_chips; i++) + cancel_work_sync(&chips[i].throttle); kfree(chips); } diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c index 5a4c5a639f61..2eaeebcc93af 100644 --- a/drivers/cpufreq/ppc_cbe_cpufreq.c +++ b/drivers/cpufreq/ppc_cbe_cpufreq.c @@ -86,6 +86,7 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy) if (!cbe_get_cpu_pmd_regs(policy->cpu) || !cbe_get_cpu_mic_tm_regs(policy->cpu)) { pr_info("invalid CBE regs pointers for cpufreq\n"); + of_node_put(cpu); return -EINVAL; } |