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authorAbhijit Pagare <abhijitpagare@ti.com>2010-02-23 08:09:07 +0300
committerPaul Walmsley <paul@pwsan.com>2010-02-24 22:14:59 +0300
commit91808a81fe7cc8a786b575ebc2d102c59d83c1a7 (patch)
treed02f38f8fc1bd4c4fe6c6cdcf9770e6231da79d1 /arch/arm/mach-omap2/clockdomain.c
parenta7e069fc5a560c096a2597d7be27f45fb4a01df7 (diff)
downloadlinux-91808a81fe7cc8a786b575ebc2d102c59d83c1a7.tar.xz
ARM: OMAP4 clock domain: Add check for avoiding dependency related update.
A check is added for avoiding the sleep/wakeup dependency updates for OMAP4 as the structures for the dependencies are currently absent. Signed-off-by: Abhijit Pagare <abhijitpagare@ti.com> [paul@pwsan.com: added warnings, explanatory comment, copyright update] Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch/arm/mach-omap2/clockdomain.c')
-rw-r--r--arch/arm/mach-omap2/clockdomain.c30
1 files changed, 24 insertions, 6 deletions
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index a38a615b422f..de4278c19029 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -1,8 +1,8 @@
/*
* OMAP2/3/4 clockdomain framework functions
*
- * Copyright (C) 2008-2009 Texas Instruments, Inc.
- * Copyright (C) 2008-2009 Nokia Corporation
+ * Copyright (C) 2008-2010 Texas Instruments, Inc.
+ * Copyright (C) 2008-2010 Nokia Corporation
*
* Written by Paul Walmsley and Jouni Högander
* Added OMAP4 specific support by Abhijit Pagare <abhijitpagare@ti.com>
@@ -891,8 +891,17 @@ void omap2_clkdm_allow_idle(struct clockdomain *clkdm)
pr_debug("clockdomain: enabling automatic idle transitions for %s\n",
clkdm->name);
- if (atomic_read(&clkdm->usecount) > 0)
- _clkdm_add_autodeps(clkdm);
+ /*
+ * XXX This should be removed once TI adds wakeup/sleep
+ * dependency code and data for OMAP4.
+ */
+ if (cpu_is_omap44xx()) {
+ WARN_ONCE(1, "clockdomain: OMAP4 wakeup/sleep dependency "
+ "support is not yet implemented\n");
+ } else {
+ if (atomic_read(&clkdm->usecount) > 0)
+ _clkdm_add_autodeps(clkdm);
+ }
_omap2_clkdm_set_hwsup(clkdm, 1);
@@ -924,8 +933,17 @@ void omap2_clkdm_deny_idle(struct clockdomain *clkdm)
_omap2_clkdm_set_hwsup(clkdm, 0);
- if (atomic_read(&clkdm->usecount) > 0)
- _clkdm_del_autodeps(clkdm);
+ /*
+ * XXX This should be removed once TI adds wakeup/sleep
+ * dependency code and data for OMAP4.
+ */
+ if (cpu_is_omap44xx()) {
+ WARN_ONCE(1, "clockdomain: OMAP4 wakeup/sleep dependency "
+ "support is not yet implemented\n");
+ } else {
+ if (atomic_read(&clkdm->usecount) > 0)
+ _clkdm_del_autodeps(clkdm);
+ }
}