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cpuidle: Make drivers initialize polling state

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Make the drivers that want to include the polling state into their
states table initialize it explicitly and drop the initialization of
it (which in fact is conditional, but that is not obvious from the
code) from the core.

Signed-off-by: Rafael J. Wysocki <[email protected]>
Tested-by: Sudeep Holla <[email protected]>
Acked-by: Daniel Lezcano <[email protected]>
This commit is contained in:
Rafael J. Wysocki 2017-08-29 03:14:37 +02:00
commit 1b39e3f813
5 changed files with 13 additions and 6 deletions
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9
drivers/acpi/processor_idle.c
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@ -842,7 +842,7 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,
static int acpi_processor_setup_cstates(struct acpi_processor *pr)
{
int i, count = ACPI_IDLE_STATE_START;
int i, count;
struct acpi_processor_cx *cx;
struct cpuidle_state *state;
struct cpuidle_driver *drv = &acpi_idle_driver;
@ -850,6 +850,13 @@ static int acpi_processor_setup_cstates(struct acpi_processor *pr)
if (max_cstate == 0)
max_cstate = 1;
if (IS_ENABLED(CONFIG_ARCH_HAS_CPU_RELAX)) {
cpuidle_poll_state_init(drv);
count = 1;
} else {
count = 0;
}
for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) {
cx = &pr->power.states[i];