linux-kernel - Re: [PATCHv2 07/11] ARM: OMAP3: Beagle: use PWM_LOOKUP to initialize struct pwm

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Date:	Tue, 15 Apr 2014 10:42:03 +0300
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	Simon Horman <horms@...ge.net.au>
CC:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Thierry Reding <thierry.reding@...il.com>,
	Tony Lindgren <tony@...mide.com>,
	Philipp Zabel <philipp.zabel@...il.com>,
	Paul Parsons <lost.distance@...oo.com>,
	Magnus Damm <magnus.damm@...il.com>,
	Eric Miao <eric.y.miao@...il.com>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Bryan Wu <cooloney@...il.com>,
	Jingoo Han <jg1.han@...sung.com>,
	Lee Jones <lee.jones@...aro.org>, <linux-pwm@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>, <linux-sh@...r.kernel.org>,
	<linux-leds@...r.kernel.org>, <linux-fbdev@...r.kernel.org>
Subject: Re: [PATCHv2 07/11] ARM: OMAP3: Beagle: use PWM_LOOKUP to initialize
 struct pwm_lookup

On 04/15/2014 10:14 AM, Simon Horman wrote:
> On Tue, Apr 15, 2014 at 10:01:44AM +0300, Peter Ujfalusi wrote:
>> On 04/15/2014 12:59 AM, Alexandre Belloni wrote:
>>> Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
>>> ---
>>>  arch/arm/mach-omap2/board-omap3beagle.c | 10 ++--------
>>>  1 file changed, 2 insertions(+), 8 deletions(-)
>>>
>>> diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
>>> index f27e1ec90b5e..54c135a5b4f7 100644
>>> --- a/arch/arm/mach-omap2/board-omap3beagle.c
>>> +++ b/arch/arm/mach-omap2/board-omap3beagle.c
>>> @@ -61,14 +61,8 @@
>>>  
>>>  static struct pwm_lookup pwm_lookup[] = {
>>>  	/* LEDB -> PMU_STAT */
>>> -	{
>>> -		.provider = "twl-pwmled",
>>> -		.index = 1,
>>> -		.dev_id = "leds_pwm",
>>> -		.con_id = "beagleboard::pmu_stat",
>>> -		.period = 7812500,
>>> -		.polarity = PWM_POLARITY_NORMAL,
>>> -	},
>>> +	PWM_LOOKUP("twl-pwmled", 1, "leds_pwm", "beagleboard::pmu_stat",
>>> +		   7812500, PWM_POLARITY_NORMAL),
>>
>> Why do you need to do this in two steps?
>> In patch 4 you removed the existing PWM_LOOKUP() and now you are adding it back.
>> Would not be simpler if you just add the two new parameters in patch 4 (the
>> 812500, PWM_POLARITY_NORMAL)?
> 
> Such an approach would apply an atomic change to both the infrastructure
> and the users.

Yes, I overlooked patch 6...
Just ignore my comment.

-- 
Péter
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