Re: [PATCH 2/2] can: m_can: add deep Suspend/Resume support

[Marc Kleine-Budde <mkl@pengutronix.de>]

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On 05/03/2017 02:28 PM, Quentin Schulz wrote:
> Hi Marc,
> 
> On 03/05/2017 14:16, Marc Kleine-Budde wrote:
>> On 05/03/2017 02:11 PM, Quentin Schulz wrote:
>>> This adds Power Management deep Suspend/Resume support for Bosch M_CAN
>>> chip.
>>>
>>> When the chip resumes from deep sleep, the RAM needs to be initialized
>>> as it is done when the driver probes. The net interface also needs to be
>>> closed and reopened to be fully functional.
>>
>> Are you sure it's the closing and opening of the net interface. Maybe
>> it's the m_can_start() and/or the subsequent m_can_chip_config()?
>>
> 
> You're right. The chip needs to be completely reinitialized (clocks,
> chip itself) and it also closes and reopens the interface if I'm correct
> with close_candev and open_candev.
> I'm sending a v2 right away to fix the commit log.

:) I mean to fix the call to the proper function and _not_ calling
close() open().

Marc

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Pengutronix e.K.                  | Marc Kleine-Budde           |
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