[Skiboot] [RFC PATCH 07/23] core/pci-slot: add power_ctl_state

[Oliver O'Halloran]

Add a state variable for tracking where the set_power_state() function
is in the process of powering on the slot.

Signed-off-by: Oliver O'Halloran <oohall at gmail.com>
---
We probably want a timer, etc similar to what we have the for slot reset
state machine.
---
 include/pci-slot.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/pci-slot.h b/include/pci-slot.h
index fec11ccf46c2..9299ffae92e8 100644
--- a/include/pci-slot.h
+++ b/include/pci-slot.h
@@ -181,6 +181,9 @@ struct pci_slot {
 	uint64_t		async_token;
 	uint8_t			power_state;
 
+	/* used by the set_power_state() function */
+	uint8_t			power_ctl_state;
+
 	/* Slot information */
 	uint8_t			pluggable;
 	uint8_t			surprise_pluggable;
-- 
2.20.1