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| author | Rajendra Nayak <rnayak@ti.com> | 2011-04-05 15:22:31 +0530 |
|---|---|---|
| committer | Nishanth Menon <nm@ti.com> | 2011-06-13 16:36:58 -0500 |
| commit | 8ac561dc84c127cb1e8cba89fcd29150a82d6a9f (patch) | |
| tree | 5d6d3b200e95c1b85eb5c8b8642f68469f4d5d75 | |
| parent | cd2a90189644875a7765bbdc4057b3485a016283 (diff) | |
| download | kernel_samsung_tuna-8ac561dc84c127cb1e8cba89fcd29150a82d6a9f.zip kernel_samsung_tuna-8ac561dc84c127cb1e8cba89fcd29150a82d6a9f.tar.gz kernel_samsung_tuna-8ac561dc84c127cb1e8cba89fcd29150a82d6a9f.tar.bz2 | |
OMAP2+: clockdomain: Add an api to read idle mode
Add a clockdomain api to check if hardware supervised
idle transitions are enabled on a clockdomain.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
| -rw-r--r-- | arch/arm/mach-omap2/clockdomain.c | 21 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clockdomain.h | 3 |
2 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c index 0e9aa16..b98a972 100644 --- a/arch/arm/mach-omap2/clockdomain.c +++ b/arch/arm/mach-omap2/clockdomain.c @@ -795,6 +795,27 @@ void clkdm_deny_idle(struct clockdomain *clkdm) arch_clkdm->clkdm_deny_idle(clkdm); } +/** + * clkdm_is_idle - Check if the clkdm hwsup/autoidle is enabled + * @clkdm: struct clockdomain * + * + * Returns true if the clockdomain is in hardware-supervised + * idle mode, or 0 otherwise. + * + */ +int clkdm_is_idle(struct clockdomain *clkdm) +{ + if (!clkdm) + return -EINVAL; + + if (!arch_clkdm || !arch_clkdm->clkdm_is_idle) + return -EINVAL; + + pr_debug("clockdomain: reading idle state for %s\n", clkdm->name); + + return arch_clkdm->clkdm_is_idle(clkdm); +} + /* Clockdomain-to-clock framework interface code */ diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h index 5823584..085ed82 100644 --- a/arch/arm/mach-omap2/clockdomain.h +++ b/arch/arm/mach-omap2/clockdomain.h @@ -138,6 +138,7 @@ struct clockdomain { * @clkdm_wakeup: Force a clockdomain to wakeup * @clkdm_allow_idle: Enable hw supervised idle transitions for clock domain * @clkdm_deny_idle: Disable hw supervised idle transitions for clock domain + * @clkdm_is_idle: Check if hw supervised idle transitions are enabled * @clkdm_clk_enable: Put the clkdm in right state for a clock enable * @clkdm_clk_disable: Put the clkdm in right state for a clock disable */ @@ -154,6 +155,7 @@ struct clkdm_ops { int (*clkdm_wakeup)(struct clockdomain *clkdm); void (*clkdm_allow_idle)(struct clockdomain *clkdm); void (*clkdm_deny_idle)(struct clockdomain *clkdm); + int (*clkdm_is_idle)(struct clockdomain *clkdm); int (*clkdm_clk_enable)(struct clockdomain *clkdm); int (*clkdm_clk_disable)(struct clockdomain *clkdm); }; @@ -177,6 +179,7 @@ int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm); void clkdm_allow_idle(struct clockdomain *clkdm); void clkdm_deny_idle(struct clockdomain *clkdm); +int clkdm_is_idle(struct clockdomain *clkdm); int clkdm_wakeup(struct clockdomain *clkdm); int clkdm_sleep(struct clockdomain *clkdm); |