[Skiboot] [PATCH] fixup! hw/slw: only enable supported STOP states

[Oliver O'Halloran]

---
 hw/slw.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/hw/slw.c b/hw/slw.c
index 579c357a952a..9029af44d772 100644
--- a/hw/slw.c
+++ b/hw/slw.c
@@ -763,8 +763,10 @@ void add_cpu_idle_state_properties(void)
 
 		/* We can only use the stop levels that HB has made available */
 		if (has_stop_inst) {
-			u32 level = 1ul << states[i].pm_ctrl_reg_val;
-			if (!(stop_levels & level))
+			u32 level = states[i].pm_ctrl_reg_val &
+				OPAL_PM_PSSCR_RL_MASK;
+
+			if (!(stop_levels & (1ul << level))
 				continue;
 		}
 
-- 
2.7.4