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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>
hifive-unleashed-5.1
Abhijit Pagare 2010-02-22 22:09:07 -07:00 committed by Paul Walmsley
parent a7e069fc5a
commit 91808a81fe
1 changed files with 24 additions and 6 deletions
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30
arch/arm/mach-omap2/clockdomain.c
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@ -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);
}
}