[PATCH 10/25] OMAP4: PM: Initialise all the clockdomains to supported states
From: Santosh Shilimkar <hidden>
Date: 2011-09-04 13:54:11
Also in:
linux-omap
Subsystem:
arm port, omap power management support, omap2+ support, the rest · Maintainers:
Russell King, Kevin Hilman, Aaro Koskinen, Andreas Kemnade, Kevin Hilman, Roger Quadros, Tony Lindgren, Linus Torvalds
Initialise hardware supervised mode for all clockdomains if it's supported. Initiate sleep transition for other clockdomains, if they are not being used. Signed-off-by: Santosh Shilimkar <redacted> Signed-off-by: Rajendra Nayak <redacted> Cc: Kevin Hilman <redacted> --- arch/arm/mach-omap2/pm44xx.c | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index 0154363..44ce15c 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c@@ -17,6 +17,7 @@ #include <linux/slab.h> #include "powerdomain.h" +#include "clockdomain.h" #include <mach/omap4-common.h> struct power_state {
@@ -73,6 +74,22 @@ static const struct platform_suspend_ops omap_pm_ops = { }; #endif /* CONFIG_SUSPEND */ +/* + * Enable hardware supervised mode for all clockdomains if it's + * supported. Initiate sleep transition for other clockdomains, if + * they are not used + */ +static int __init clkdms_setup(struct clockdomain *clkdm, void *unused) +{ + if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO) + clkdm_allow_idle(clkdm); + else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP && + atomic_read(&clkdm->usecount) == 0) + clkdm_sleep(clkdm); + return 0; +} + + static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused) { struct power_state *pwrst;
@@ -161,6 +178,8 @@ static int __init omap4_pm_init(void) goto err2; } + (void) clkdm_for_each(clkdms_setup, NULL); + #ifdef CONFIG_SUSPEND suspend_set_ops(&omap_pm_ops); #endif /* CONFIG_SUSPEND */
--
1.7.4.1