linux-kernel - Re: [PATCH V3 5/5] rtc: max77686: move initialisation of rtc regmap, irq chip locally

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Message-ID: <56B2BFA3.90409@osg.samsung.com>
Date:	Thu, 4 Feb 2016 00:04:03 -0300
From:	Javier Martinez Canillas <javier@....samsung.com>
To:	Laxman Dewangan <ldewangan@...dia.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	lee.jones@...aro.org, alexandre.belloni@...e-electrons.com
Cc:	cw00.choi@...sung.com, linux-kernel@...r.kernel.org,
	rtc-linux@...glegroups.com
Subject: Re: [PATCH V3 5/5] rtc: max77686: move initialisation of rtc regmap,
 irq chip locally

Hello Laxman,

On 02/03/2016 11:50 PM, Laxman Dewangan wrote:
> Hi Javier,
>
> On Thursday 04 February 2016 07:33 AM, Laxman Dewangan wrote:
>>
>> On Thursday 04 February 2016 05:40 AM, Krzysztof Kozlowski wrote:
>>> On 03.02.2016 22:47, Laxman Dewangan wrote:
>>>>
>>>> Changes from V2:
>>>> - Taken care of missed sequence for removing the resource.
>>>> - Fix the crash when doing unbind by using requested_threaded_irq()
>>>>    instead of demv_requested_threaded_irq().
>>>>
>>>>   drivers/mfd/max77686.c               |  85 +-------------------
>>>>   drivers/rtc/rtc-max77686.c           | 148 ++++++++++++++++++++++++++++++-----
>>>>   include/linux/mfd/max77686-private.h |   3 -
>>>>   3 files changed, 130 insertions(+), 106 deletions(-)
>>>>
>>> Looks good and works properly (RTC, unbind/rebind, wakealarm again)
>>> but... after applying this patch the device cannot suspend to RAM after
>>> unbind/rebind.
>>>
>>> Reproduce path, after booting:
>>> $ echo max77686-rtc > /sys/bus/platform/drivers/max77686-rtc/unbind
>>> $ echo max77686-rtc > /sys/bus/platform/drivers/max77686-rtc/bind
>>> $ rtcwake -d rtc2 -m mem -s 5 -v
>>> (or instead of rtcwake: echo mem > /sys/power/state)
>>
>
> Can you please also try to test in your setup which have MAX77802?
> On this, we do not create i2c client and do regmap_init_i2c. So may be it helps on narrow down the issue.
>

Of course, I planned to test it today but ran out of time and I don't have
access to my Chromebook now. I'll test it at first time tomorrow morning.
  
Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America