[PATCH v1] watchdog: imx2: fix hang-up on boot for i.MX21, i.MX27 and i.MX31 SoCs

[Uwe Kleine-König]

Hello,

On Fri, Dec 23, 2016 at 10:20:20AM +0200, Vladimir Zapolskiy wrote:
> On 12/23/2016 03:55 AM, Guenter Roeck wrote:
> > What is the ultimate conclusion of this exchange ?
> > 
> > Are we going to get another version of the patch, or did everyone agree that
> > the patch is good as it is and does not require further changes ?
> > 
> 
> I can not imagine a different fix.

my preferred fix would be:

 - add an imx35 compatible to all newer dtsi
 - update the driver to only write the wmcr on imx35 compatible devices
   adding only imx35.

Compared to Vladimir's change this undoes 5fe65ce7ccbb ("watchdog:
imx2_wdt: Disable power down counter on boot") on the newer generation
SoCs until their dtb is updated. 5fe65ce7ccbb fixed a problem in 2014
for these newer SoCs which wasn't urgent enough to be fixed earlier, so
I'd say this isn't a big problem and in return the drivers and device
trees stay simpler.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |