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[1/5] OMAP: hwmod: allow idle after HWMOD_INIT_NO_IDLE

Message ID 1274994816-30335-2-git-send-email-khilman@deeprootsystems.com (mailing list archive)
State Superseded
Delegated to: Kevin Hilman
Headers show

Commit Message

Kevin Hilman May 27, 2010, 9:13 p.m. UTC 
None
diff mbox

Patch

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 2fff39f..a127c9b 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -939,7 +939,13 @@  static int _enable(struct omap_hwmod *oh)
  */
 static int _idle(struct omap_hwmod *oh)
 {
-	if (oh->_state != _HWMOD_STATE_ENABLED) {
+	/*
+	 * To idle, hwmod must be enabled, EXCEPT if hwmod was
+	 * initialized using the INIT_NO_IDLE flag.  In this case it
+	 * will not yet be enabled so we have to allow it to be idled.
+	 */
+	if ((oh->_state != _HWMOD_STATE_ENABLED) &&
+	    !(oh->flags & HWMOD_INIT_NO_IDLE)) {
 		WARN(1, "omap_hwmod: %s: idle state can only be entered from "
 		     "enabled state\n", oh->name);
 		return -EINVAL;
@@ -954,6 +960,9 @@  static int _idle(struct omap_hwmod *oh)
 
 	oh->_state = _HWMOD_STATE_IDLE;
 
+	/* Clear init flag which should only affect first call to idle */
+	oh->flags &= ~HWMOD_INIT_NO_IDLE;
+
 	return 0;
 }