Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'pm-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Fix the throttle IRQ handling during cpufreq initialization on
Qualcomm platforms (Bjorn Andersson)"
* tag 'pm-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: qcom-hw: Delay enabling throttle_irq
cpufreq: Reintroduce ready() callback
+22
-1
+3
Documentation/cpu-freq/cpu-drivers.rst
+3
Documentation/cpu-freq/cpu-drivers.rst
···
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.resume - A pointer to a per-policy resume function which is called
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with interrupts disabled and _before_ the governor is started again.
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+
.ready - A pointer to a per-policy ready function which is called after
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+
the policy is fully initialized.
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+
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.attr - A pointer to a NULL-terminated list of "struct freq_attr" which
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allow to export values to sysfs.
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+2
Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst
+2
Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst
+4
drivers/cpufreq/cpufreq.c
+4
drivers/cpufreq/cpufreq.c
···
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kobject_uevent(&policy->kobj, KOBJ_ADD);
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+
/* Callback for handling stuff after policy is ready */
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+
if (cpufreq_driver->ready)
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+
cpufreq_driver->ready(policy);
1524
+
1521
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if (cpufreq_thermal_control_enabled(cpufreq_driver))
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policy->cdev = of_cpufreq_cooling_register(policy);
1523
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+10
-1
drivers/cpufreq/qcom-cpufreq-hw.c
+10
-1
drivers/cpufreq/qcom-cpufreq-hw.c
···
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snprintf(data->irq_name, sizeof(data->irq_name), "dcvsh-irq-%u", policy->cpu);
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ret = request_threaded_irq(data->throttle_irq, NULL, qcom_lmh_dcvs_handle_irq,
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-
IRQF_ONESHOT, data->irq_name, data);
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+
IRQF_ONESHOT | IRQF_NO_AUTOEN, data->irq_name, data);
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if (ret) {
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dev_err(&pdev->dev, "Error registering %s: %d\n", data->irq_name, ret);
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return 0;
···
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return 0;
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}
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+
static void qcom_cpufreq_ready(struct cpufreq_policy *policy)
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+
{
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struct qcom_cpufreq_data *data = policy->driver_data;
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+
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+
if (data->throttle_irq >= 0)
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+
enable_irq(data->throttle_irq);
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+
}
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+
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static struct freq_attr *qcom_cpufreq_hw_attr[] = {
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&cpufreq_freq_attr_scaling_available_freqs,
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&cpufreq_freq_attr_scaling_boost_freqs,
···
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.fast_switch = qcom_cpufreq_hw_fast_switch,
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.name = "qcom-cpufreq-hw",
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.attr = qcom_cpufreq_hw_attr,
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+
.ready = qcom_cpufreq_ready,
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};
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static int qcom_cpufreq_hw_driver_probe(struct platform_device *pdev)
+3
include/linux/cpufreq.h
+3
include/linux/cpufreq.h
···
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int (*suspend)(struct cpufreq_policy *policy);
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int (*resume)(struct cpufreq_policy *policy);
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+
/* Will be called after the driver is fully initialized */
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+
void (*ready)(struct cpufreq_policy *policy);
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+
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struct freq_attr **attr;
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/* platform specific boost support code */