[PATCH] ARM: S5P: Add PMU device

[kgene.kim@samsung.com (Kukjin Kim)]

Joonyoung Shim wrote:
> 
> On 7/6/2010 12:43 PM, Kukjin Kim wrote:
> > Joonyoung Shim wrote:
> >> On 7/5/2010 9:44 PM, Kukjin Kim wrote:
> >>> Joonyoung Shim wrote:
> >>>> This patch adds an initcall for the s5p platforms so that they register
> >>>> their PMU IRQs with the PMU framework in the Kernel.
> >>>>
> >>> Please include Ben Dooks email address in the CC.
> >> OK.
> >>
> >>>> Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
> >>>> ---
> >>>>  arch/arm/mach-s5p6442/include/mach/irqs.h |    2 +-
> >>>>  arch/arm/mach-s5pc100/include/mach/irqs.h |    1 +
> >>>>  arch/arm/mach-s5pv210/include/mach/irqs.h |    1 +
> >>>>  arch/arm/plat-s5p/Makefile                |    1 +
> >>>>  arch/arm/plat-s5p/dev-pmu.c               |   37
> >>>> +++++++++++++++++++++++++++++
> >>>>  5 files changed, 41 insertions(+), 1 deletions(-)
> >>>>  create mode 100644 arch/arm/plat-s5p/dev-pmu.c
> >>>>
> >>>> diff --git a/arch/arm/mach-s5p6442/include/mach/irqs.h b/arch/arm/mach-
> >>>> s5p6442/include/mach/irqs.h
> >>>> index 02c2374..22173cc 100644
> >>>> --- a/arch/arm/mach-s5p6442/include/mach/irqs.h
> >>>> +++ b/arch/arm/mach-s5p6442/include/mach/irqs.h
> >>>> @@ -32,7 +32,7 @@
> >>>>  #define IRQ_GPIOINT		S5P_IRQ_VIC0(30)
> >>>>
> >>>>  /* VIC1 */
> >>>> -#define IRQ_nPMUIRQ 		S5P_IRQ_VIC1(0)
> >>>> +#define IRQ_PMUIRQ		S5P_IRQ_VIC1(0)
> >>> I'm not sure this changing is better..as you know, nXXX has some meaning.
> >>>
> >> Otherwise, we should redefine it and s5p6440 was defined to IRQ_PMUIRQ.
> >>
> > Hmm..so I said...I'm not sure... :-)
> > OK...just IRQ_PMUIRQ looks good.
> >
> >>>>  #define IRQ_ONENAND 		S5P_IRQ_VIC1(7)
> >>>>  #define IRQ_UART0 		S5P_IRQ_VIC1(10)
> >>>>  #define IRQ_UART1 		S5P_IRQ_VIC1(11)
> >>>> diff --git a/arch/arm/mach-s5pc100/include/mach/irqs.h b/arch/arm/mach-
> >>>> s5pc100/include/mach/irqs.h
> >>>> index 28aa551..9cc1b0d 100644
> >>>> --- a/arch/arm/mach-s5pc100/include/mach/irqs.h
> >>>> +++ b/arch/arm/mach-s5pc100/include/mach/irqs.h
> >>>> @@ -110,5 +110,6 @@
> >>>>  #define IRQ_LCD_FIFO		IRQ_LCD0
> >>>>  #define IRQ_LCD_VSYNC		IRQ_LCD1
> >>>>  #define IRQ_LCD_SYSTEM		IRQ_LCD2
> >>>> +#define IRQ_PMUIRQ		IRQ_CORTEX0
> >>>>
> >>> I think, we don't need remapping in here.
> >>> How about use direct mapping like following:
> >>> #define IRQ_PMUIRQ	S5P_IRQ_VIC1(0)
> >>>
> >> I don't care, but above codes uses already remapping.
> >>
> > Yeah, used remapping..but written by IRQ_LCD[0-2] in datasheet.
> > In the PMUIRQ case, written by CORTEX0(nPMUIRQ).
> > ...
> > Anyway, I mean just no need IRQ_CORTEX0.
> >
> > So suggested direct mapping like above.
> > I think, we don't need to add an unused code.
> >
> 
> I don't know what means 'n' character of nPMUIRQ. If you are fine, let

The 'n' means negative, so its meaning is low-level active.

> decide to use IRQ_PMUIRQ instead of IRQ_nPMUIRQ and IRQ_CORTEX0.
> How about this?

Yes..ok..I mean it's better directly using without remapping from IRQ_CORTEX0.

Hmm...how about simply just IRQ_PMU?

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.