[PATCH] ARM: S5P: Add PMU device

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

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.

> >>  #endif /* __ASM_ARCH_IRQS_H */
> >> diff --git a/arch/arm/mach-s5pv210/include/mach/irqs.h b/arch/arm/mach-
> >> s5pv210/include/mach/irqs.h
> >> index 9689537..3972f8d 100644
> >> --- a/arch/arm/mach-s5pv210/include/mach/irqs.h
> >> +++ b/arch/arm/mach-s5pv210/include/mach/irqs.h
> >> @@ -128,5 +128,6 @@
> >>  #define IRQ_LCD_FIFO		IRQ_LCD0
> >>  #define IRQ_LCD_VSYNC		IRQ_LCD1
> >>  #define IRQ_LCD_SYSTEM		IRQ_LCD2
> >> +#define IRQ_PMUIRQ		IRQ_CORTEX0
> >>
> > same.
> >
> >>  #endif /* ASM_ARCH_IRQS_H */
> >> diff --git a/arch/arm/plat-s5p/Makefile b/arch/arm/plat-s5p/Makefile
> >> index 39c242b..7e34194 100644
> >> --- a/arch/arm/plat-s5p/Makefile
> >> +++ b/arch/arm/plat-s5p/Makefile
> >> @@ -12,6 +12,7 @@ obj-				:=
> >>
> >>  # Core files
> >>
> >> +obj-y				+= dev-pmu.o
> >>  obj-y				+= dev-uart.o
> >>  obj-y				+= cpu.o
> >>  obj-y				+= clock.o
> >> diff --git a/arch/arm/plat-s5p/dev-pmu.c b/arch/arm/plat-s5p/dev-pmu.c
> >> new file mode 100644
> >> index 0000000..de3b118
> >> --- /dev/null
> >> +++ b/arch/arm/plat-s5p/dev-pmu.c
> >> @@ -0,0 +1,37 @@
> >> +/*
> >> + * linux/arch/arm/plat-s5p/dev-pmu.c
> >> + *
> >> + * Copyright (C) 2010 Samsung Electronics Co.Ltd
> >> + * Author: Joonyoung Shim <jy0922.shim@samsung.com>
> >> + *
> >> + *  This program is free software; you can redistribute  it and/or modify
> > it
> >> + *  under  the terms of  the GNU General  Public License as published by
> > the
> >> + *  Free Software Foundation;  either version 2 of the  License, or (at
> > your
> >> + *  option) any later version.
> >> + *
> >> + */
> >> +
> >> +#include <linux/platform_device.h>
> >> +#include <asm/pmu.h>
> >> +#include <mach/irqs.h>
> >> +#include <mach/map.h>
> >
> > really need mach/map.h?
> >
> 
> Ah, it is unnecessary. i will remove it.
> 
> >> +
> >> +static struct resource s5p_pmu_resource = {
> >> +	.start	= IRQ_PMUIRQ,
> >> +	.end	= IRQ_PMUIRQ,
> >> +	.flags	= IORESOURCE_IRQ,
> >> +};
> >> +
> >> +struct platform_device s5p_device_pmu = {
> >> +	.name		= "arm-pmu",
> >> +	.id		= ARM_PMU_DEVICE_CPU,
> >> +	.num_resources	= 1,
> >> +	.resource	= &s5p_pmu_resource,
> >> +};
> >> +
> >> +static int __init s5p_pmu_init(void)
> >> +{
> >> +	platform_device_register(&s5p_device_pmu);
> >> +	return 0;
> >> +}
> >> +arch_initcall(s5p_pmu_init);
> >> --
> >
> >
> >


Thanks.

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