ACPI: PM: Print debug messages on device power state changes
Add an acpi_handle_debug() statement to acpi_device_set_power() to allow ACPI device power state changes to be tracked. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>alistair/sunxi64-5.4-dsi
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@ -166,6 +166,10 @@ int acpi_device_set_power(struct acpi_device *device, int state)
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|| (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
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|| (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
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return -EINVAL;
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return -EINVAL;
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acpi_handle_debug(device->handle, "Power state change: %s -> %s\n",
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acpi_power_state_string(device->power.state),
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acpi_power_state_string(state));
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/* Make sure this is a valid target state */
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/* Make sure this is a valid target state */
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/* There is a special case for D0 addressed below. */
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/* There is a special case for D0 addressed below. */
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