diff options
| author | Abhijit Pagare <abhijitpagare@ti.com> | 2010-02-22 22:09:07 -0700 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2010-02-24 12:14:59 -0700 |
| commit | 91808a81fe7cc8a786b575ebc2d102c59d83c1a7 (patch) | |
| tree | d02f38f8fc1bd4c4fe6c6cdcf9770e6231da79d1 /arch | |
| parent | a7e069fc5a560c096a2597d7be27f45fb4a01df7 (diff) | |
| download | linux-stable-91808a81fe7cc8a786b575ebc2d102c59d83c1a7.tar.gz linux-stable-91808a81fe7cc8a786b575ebc2d102c59d83c1a7.tar.bz2 linux-stable-91808a81fe7cc8a786b575ebc2d102c59d83c1a7.zip | |
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')
| -rw-r--r-- | arch/arm/mach-omap2/clockdomain.c | 30 |
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); + } } |