[PATCH] ARM/sp810: introduce API to change system mode

[linus.walleij@linaro.org (Linus Walleij)]

On Thu, Feb 23, 2012 at 10:13 AM, Viresh Kumar <viresh.kumar@st.com> wrote:

> sp810 controller can change system's working mode to various power save
> states. Introduce an API to accomplish the same.

OK...

> +static inline int sysctl_change_mode(void __iomem *base, int mode)

Why do you make this a static inline?

And why is the present soft reset code also static inlined?

When I look at how this is used in arch/arm/mach-vexpress/v2m.c
it's apparently glued back-to-back with the SP804
so I think it should be some CONFIG_HAS_SP810
and put directly into common/timer-sp.c.

#ifdef CONFIG_HAS_SP810

/* Put SP810 specific support functions here */

void __init sp810_clockevents_init(void __iomem *sp804_base, void
__iomem *sp810_base, unsigned int irq, const char *name)
{
  /* Do some SP810 magic stuff */
  /* Calls sp804_clockevents_init() */
}

#endif

Maybe I'm delusional but I think this could help centralizing the use
of the SP* cells, since they're obviously used in both SPEAr and
versatile express.

Yours,
Linus Walleij