| Message ID | 1309191103-8817-2-git-send-email-b-cousson@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Benoit Cousson |
| Headers | show |
Hi On Mon, 27 Jun 2011, Benoit Cousson wrote: > From: Rajendra Nayak <rnayak@ti.com> > > Add a clockdomain api to check if hardware supervised > idle transitions are enabled on a clockdomain. This looks good but I'd also suggest crediting Todd in the changelog for his review comments... > > Signed-off-by: Rajendra Nayak <rnayak@ti.com> > Cc: Paul Walmsley <paul@pwsan.com> > --- > arch/arm/mach-omap2/clockdomain.c | 21 +++++++++++++++++++++ > 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 6cb6c03..3f2a8e7 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_allows_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_allows_idle(struct clockdomain *clkdm) > +{ > + if (!clkdm) > + return -EINVAL; > + > + if (!arch_clkdm || !arch_clkdm->clkdm_allows_idle) > + return -EINVAL; > + > + pr_debug("clockdomain: reading idle state for %s\n", clkdm->name); > + > + return arch_clkdm->clkdm_allows_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..2d3d970 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_allows_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_allows_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_allows_idle(struct clockdomain *clkdm); > > int clkdm_wakeup(struct clockdomain *clkdm); > int clkdm_sleep(struct clockdomain *clkdm); > -- > 1.7.0.4 > - Paul -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c index 6cb6c03..3f2a8e7 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_allows_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_allows_idle(struct clockdomain *clkdm) +{ + if (!clkdm) + return -EINVAL; + + if (!arch_clkdm || !arch_clkdm->clkdm_allows_idle) + return -EINVAL; + + pr_debug("clockdomain: reading idle state for %s\n", clkdm->name); + + return arch_clkdm->clkdm_allows_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..2d3d970 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_allows_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_allows_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_allows_idle(struct clockdomain *clkdm); int clkdm_wakeup(struct clockdomain *clkdm); int clkdm_sleep(struct clockdomain *clkdm);