[ACPI] update /proc/acpi/processor/*/power even if only C1 support
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -519,6 +519,29 @@ static int acpi_processor_get_power_info_fadt (struct acpi_processor *pr)
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}
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static int acpi_processor_get_power_info_default_c1 (struct acpi_processor *pr)
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{
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int i;
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ACPI_FUNCTION_TRACE("acpi_processor_get_power_info_default_c1");
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for (i = 0; i < ACPI_PROCESSOR_MAX_POWER; i++)
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memset(pr->power.states, 0, sizeof(struct acpi_processor_cx));
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/* if info is obtained from pblk/fadt, type equals state */
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pr->power.states[ACPI_STATE_C1].type = ACPI_STATE_C1;
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pr->power.states[ACPI_STATE_C2].type = ACPI_STATE_C2;
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pr->power.states[ACPI_STATE_C3].type = ACPI_STATE_C3;
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/* the C0 state only exists as a filler in our array,
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* and all processors need to support C1 */
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pr->power.states[ACPI_STATE_C0].valid = 1;
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pr->power.states[ACPI_STATE_C1].valid = 1;
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return_VALUE(0);
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}
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static int acpi_processor_get_power_info_cst (struct acpi_processor *pr)
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{
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acpi_status status = 0;
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@ -787,10 +810,7 @@ static int acpi_processor_get_power_info (
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if ((result) || (acpi_processor_power_verify(pr) < 2)) {
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result = acpi_processor_get_power_info_fadt(pr);
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if (result)
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return_VALUE(result);
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if (acpi_processor_power_verify(pr) < 2)
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return_VALUE(-ENODEV);
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result = acpi_processor_get_power_info_default_c1(pr);
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}
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/*
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@ -810,12 +830,11 @@ static int acpi_processor_get_power_info (
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* CPU as being "idle manageable"
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*/
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for (i = 1; i < ACPI_PROCESSOR_MAX_POWER; i++) {
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if (pr->power.states[i].valid)
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if (pr->power.states[i].valid) {
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pr->power.count = i;
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if ((pr->power.states[i].valid) &&
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(pr->power.states[i].type >= ACPI_STATE_C2))
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pr->flags.power = 1;
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}
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}
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return_VALUE(0);
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}
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