[PATCH] intel_idle: fix C1E handling for AlderLake

[Zhang Rui]

commit cc6e234b8264 ("intel_idle: Add AlderLake support") disables the C1E
promotion using the 'disable_promotion_to_c1e' variable, but enables the
the C1E promotion by invoking c1e_promotion_enable() directly.

Then, commit 39c184a6a9a7 ("intel_idle: Fix the 'preferred_cstates' module
parameter") removes the 'disable_promotion_to_c1e' variable and introduces
a new tri-state 'c1e_promotion' variable that can be used for both
enabling and disabling C1E promotion, on a per CPU basis.

Switch to use the new 'c1e_promotion' variable to fix the build failure,
and also to do C1E promotion bit update on all CPUs.

Fixes: commit cc6e234b8264 ("intel_idle: Add AlderLake support")
Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
---
 drivers/idle/intel_idle.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 7c081ed26b64..2de6e0a2d9a1 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1698,12 +1698,12 @@ static void __init adl_idle_state_table_update(void)
 		cpuidle_state_table[1].flags |= CPUIDLE_FLAG_UNUSABLE;
 
 		/* Disable C1E by clearing the "C1E promotion" bit. */
-		disable_promotion_to_c1e = true;
+		c1e_promotion = C1E_PROMOTION_DISABLE;
 		return;
 	}
 end:
 	/* Make sure C1E is enabled by default */
-	c1e_promotion_enable();
+	c1e_promotion = C1E_PROMOTION_ENABLE;
 }
 
 /**
-- 
2.17.1