OMAP2+: clockdomain: add flag that will block autodeps from being added for a clockdomain

Commit Message

Paul Walmsley March 8, 2011, 11:56 p.m. UTC

None

Patch

diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index 58e42f7..2b4ab0b 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -181,7 +181,7 @@  static void _clkdm_add_autodeps(struct clockdomain *clkdm)
 {
 	struct clkdm_autodep *autodep;
 
-	if (!autodeps)
+	if (!autodeps || clkdm->flags & CLKDM_NO_AUTODEPS)
 		return;
 
 	for (autodep = autodeps; autodep->clkdm.ptr; autodep++) {
@@ -215,7 +215,7 @@  static void _clkdm_del_autodeps(struct clockdomain *clkdm)
 {
 	struct clkdm_autodep *autodep;
 
-	if (!autodeps)
+	if (!autodeps || clkdm->flags & CLKDM_NO_AUTODEPS)
 		return;
 
 	for (autodep = autodeps; autodep->clkdm.ptr; autodep++) {
diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index 9b459c2..5add071 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -4,7 +4,7 @@ 
  * OMAP2/3 clockdomain framework functions
  *
  * Copyright (C) 2008 Texas Instruments, Inc.
- * Copyright (C) 2008-2010 Nokia Corporation
+ * Copyright (C) 2008-2011 Nokia Corporation
  *
  * Paul Walmsley
  *
@@ -22,11 +22,19 @@ 
 #include <plat/clock.h>
 #include <plat/cpu.h>
 
-/* Clockdomain capability flags */
+/*
+ * Clockdomain flags
+ *
+ * XXX Document CLKDM_CAN_* flags
+ *
+ * CLKDM_NO_AUTODEPS: Prevent "autodeps" from being added/removed from this
+ *     clockdomain.  (Currently, this applies to OMAP3 clockdomains only.)
+ */
 #define CLKDM_CAN_FORCE_SLEEP			(1 << 0)
 #define CLKDM_CAN_FORCE_WAKEUP			(1 << 1)
 #define CLKDM_CAN_ENABLE_AUTO			(1 << 2)
 #define CLKDM_CAN_DISABLE_AUTO			(1 << 3)
+#define CLKDM_NO_AUTODEPS			(1 << 4)
 
 #define CLKDM_CAN_HWSUP		(CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO)
 #define CLKDM_CAN_SWSUP		(CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP)