linux-kernel - Re: [PATCH 26/27] ARM: shmobile: lager-reference: Enable CMT0 in device tree

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Date:	Fri, 14 Feb 2014 15:22:22 +0100
From:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	linux-sh@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 26/27] ARM: shmobile: lager-reference: Enable CMT0 in device tree

Hi Sergei,

On Friday 14 February 2014 18:13:44 Sergei Shtylyov wrote:
> On 14-02-2014 17:48, Laurent Pinchart wrote:
> >>> Enable the CMT0 device and configure channel 0 as a clock event
> >>> provider.
> >>> 
> >>> Signed-off-by: Laurent Pinchart
> >>> <laurent.pinchart+renesas@...asonboard.com>
> >>> 
> >>> diff --git a/arch/arm/mach-shmobile/include/mach/r8a7790.h
> >>> b/arch/arm/mach-shmobile/include/mach/r8a7790.h index 0b95bab..62b31f3
> >>> 100644 --- a/arch/arm/mach-shmobile/include/mach/r8a7790.h
> >>> +++ b/arch/arm/mach-shmobile/include/mach/r8a7790.h
> >>> @@ -29,7 +29,6 @@ enum {
> >>>  };
> >>>   
> >>>  void r8a7790_add_standard_devices(void);
> >>> -void r8a7790_add_dt_devices(void);
> >>>  void r8a7790_clock_init(void);
> >>>  void r8a7790_pinmux_init(void);
> >>>  void r8a7790_pm_init(void);
> >>> diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c
> >>> b/arch/arm/mach-shmobile/setup-r8a7790.c index 3e5813f..462c81f 100644
> >>> --- a/arch/arm/mach-shmobile/setup-r8a7790.c
> >>> +++ b/arch/arm/mach-shmobile/setup-r8a7790.c
> >>> @@ -294,11 +294,6 @@ static struct resource cmt0_resources[] = {
> >>>    					  &cmt##idx##_platform_data,	\
> >>>    					  sizeof(struct sh_timer_config))
> >>> 
> >>> -void __init r8a7790_add_dt_devices(void)
> >>> -{
> >>> -	r8a7790_register_cmt(0);
> >>> -}
> >>> -
> >>>  void __init r8a7790_add_standard_devices(void)
> >>>  {
> >>>    	r8a7790_register_scif(0);
> >>> @@ -311,7 +306,7 @@ void __init r8a7790_add_standard_devices(void)
> >>>    	r8a7790_register_scif(7);
> >>>    	r8a7790_register_scif(8);
> >>>    	r8a7790_register_scif(9);
> >>> -	r8a7790_add_dt_devices();
> >>> +	r8a7790_register_cmt(0);
> >>>    	r8a7790_register_irqc(0);
> >>>    	r8a7790_register_thermal();
> >>>  }
> >>>   
> >> IMHO, these 2 files should be split into a separate patch.
> > 
> > That could easily be done, but why ?
> 
> It does not seem necessary to combine these changes in one patch. Remember,
> Simon has separate branches for boards and SoCs. So finally it's up to him
> to decide on this...

Right, but in this case I need to remove the CMT platform device registration 
from r8a7790_add_dt_devices() at the same time as I enable it in DT, otherwise 
we'll have two instances of the same device.

-- 
Regards,

Laurent Pinchart

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