[PATCHv3 11/12] ARM: migrate to common PSCI client code

[Mark Rutland]

On Wed, May 27, 2015 at 05:46:47PM +0100, Rob Herring wrote:
> On Tue, May 26, 2015 at 8:52 AM, Mark Rutland <mark.rutland at arm.com> wrote:
> > Now that the common PSCI client code has been factored out to
> > drivers/firmware, and made safe for 32-bit use, move the 32-bit ARM code
> > over to it. This results in a moderate reduction of duplicated lines,
> > and will prevent further duplication as the PSCI client code is updated
> > for PSCI 1.0 and beyond.
> >
> > The two legacy platform users of the PSCI invocation code are updated to
> > account for interface changes. In both cases the power state parameter
> > is changed to an opaque u32 token in preparation for PSCI 1.0 power
> > state changes.
> 
> [...]
> 
> > diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
> > index 231fba0..6050a14 100644
> > --- a/arch/arm/mach-highbank/highbank.c
> > +++ b/arch/arm/mach-highbank/highbank.c
> > @@ -28,8 +28,8 @@
> >  #include <linux/reboot.h>
> >  #include <linux/amba/bus.h>
> >  #include <linux/platform_device.h>
> > +#include <linux/psci.h>
> >
> > -#include <asm/psci.h>
> >  #include <asm/hardware/cache-l2x0.h>
> >  #include <asm/mach/arch.h>
> >  #include <asm/mach/map.h>
> > diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c
> > index 7f2bd85..014e96d 100644
> > --- a/arch/arm/mach-highbank/pm.c
> > +++ b/arch/arm/mach-highbank/pm.c
> > @@ -16,18 +16,14 @@
> >
> >  #include <linux/cpu_pm.h>
> >  #include <linux/init.h>
> > +#include <linux/psci.h>
> >  #include <linux/suspend.h>
> >
> >  #include <asm/suspend.h>
> > -#include <asm/psci.h>
> >
> >  static int highbank_suspend_finish(unsigned long val)
> >  {
> > -       const struct psci_power_state ps = {
> > -               .type = PSCI_POWER_STATE_TYPE_POWER_DOWN,
> > -               .affinity_level = 1,
> > -       };
> > -
> > +       u32 ps = 0x01010000; /* Aff1 power down */
> 
> Why not just pass directly instead of sticking in a variable first.

No particular reason. I'll fold it in.
 
> >         return psci_ops.cpu_suspend(ps, __pa(cpu_resume));
> >  }
> >
> > diff --git a/drivers/cpuidle/cpuidle-calxeda.c b/drivers/cpuidle/cpuidle-calxeda.c
> > index 9445e6c..d010da8f 100644
> > --- a/drivers/cpuidle/cpuidle-calxeda.c
> > +++ b/drivers/cpuidle/cpuidle-calxeda.c
> > @@ -25,15 +25,14 @@
> >  #include <linux/init.h>
> >  #include <linux/mm.h>
> >  #include <linux/platform_device.h>
> > +#include <linux/psci.h>
> > +
> >  #include <asm/cpuidle.h>
> >  #include <asm/suspend.h>
> > -#include <asm/psci.h>
> >
> >  static int calxeda_idle_finish(unsigned long val)
> >  {
> > -       const struct psci_power_state ps = {
> > -               .type = PSCI_POWER_STATE_TYPE_POWER_DOWN,
> > -       };
> > +       u32 ps = 0x00010000; /* Aff0 power down */
> 
> ditto.

Likewise.

Thanks,
Mark.

> 
> >         return psci_ops.cpu_suspend(ps, __pa(cpu_resume));
> >  }
> >
> > --
> > 1.9.1
> >
>