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[1/3] OMAP3 PM: Deny clock gating only for safe state

Message ID 1297846874-18286-2-git-send-email-vishwanath.bs@ti.com (mailing list archive)
State Changes Requested
Delegated to: Kevin Hilman
Headers show

Commit Message

Sripathy, Vishwanath Feb. 16, 2011, 9:01 a.m. UTC
None
diff mbox

Patch

diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index f8e35b3..1e4ec7f 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -139,19 +139,9 @@  static int omap3_enter_idle(struct cpuidle_device *dev,
 	if (omap_irq_pending() || need_resched())
 		goto return_sleep_time;
 
-	if (cx->type == OMAP3_STATE_C1) {
-		pwrdm_for_each_clkdm(mpu_pd, _cpuidle_deny_idle);
-		pwrdm_for_each_clkdm(core_pd, _cpuidle_deny_idle);
-	}
-
 	/* Execute ARM wfi */
 	omap_sram_idle();
 
-	if (cx->type == OMAP3_STATE_C1) {
-		pwrdm_for_each_clkdm(mpu_pd, _cpuidle_allow_idle);
-		pwrdm_for_each_clkdm(core_pd, _cpuidle_allow_idle);
-	}
-
 return_sleep_time:
 	getnstimeofday(&ts_postidle);
 	ts_idle = timespec_sub(ts_postidle, ts_preidle);
@@ -315,8 +305,18 @@  static int omap3_enter_idle_bm(struct cpuidle_device *dev,
 
 select_state:
 	dev->last_state = new_state;
+
+	if (new_state == dev->safe_state) {
+		pwrdm_for_each_clkdm(mpu_pd, _cpuidle_deny_idle);
+		pwrdm_for_each_clkdm(core_pd, _cpuidle_deny_idle);
+	}
 	ret = omap3_enter_idle(dev, new_state);
 
+	if (new_state == dev->safe_state) {
+		pwrdm_for_each_clkdm(mpu_pd, _cpuidle_allow_idle);
+		pwrdm_for_each_clkdm(core_pd, _cpuidle_allow_idle);
+	}
+
 	/* Restore original PER state if it was modified */
 	if (per_next_state != per_saved_state)
 		pwrdm_set_next_pwrst(per_pd, per_saved_state);