Re: [PATCH v3 1/2] can: m_can: tcan4x5x: put the device out of standby before register access

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On 12/11/19 7:42 AM, Sean Nyekjaer wrote:
> The m_can tries to detect if Non ISO Operation is available while in standby,
> this function results in the following error:
> 
> tcan4x5x spi2.0 (unnamed net_device) (uninitialized): Failed to init module
> tcan4x5x spi2.0: m_can device registered (irq=84, version=32)
> tcan4x5x spi2.0 can2: TCAN4X5X successfully initialized.
> 
> When the tcan device comes out of reset it comes out in standby mode.
> The m_can driver tries to access the control register but fails due to
> the device is in standby mode.
> So this patch will put the tcan device in normal mode before the m_can
> driver does the initialization.
> 
> Fixes: a229abeed7f7 ("can: tcan4x5x: Turn on the power before parsing the config")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Sean Nyekjaer <sean@xxxxxxxxxx>

Applied both to linux-can.

Tnx,
Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |

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