[PATCH v1] Revert "core: device: use dev_power_domain_on"

[Tom Rini <trini@konsulko.com>]

On Fri, Dec 20, 2019 at 11:16:38AM +0530, Lokesh Vutla wrote:
> 
> 
> On 17/12/19 5:44 PM, Igor Opaniuk wrote:
> > From: Igor Opaniuk <igor.opaniuk@toradex.com>
> > 
> > This reverts commit f0cc4eae9a1702a768817ea25d9f23cece69d021
> > 
> > This was previously reported that f0cc4eae9a ("core: device:
> > use dev_power_domain_on") breaks initial boot on Colibri iMX8X and
> > IMX8 QM ROM 7720a1 board. Revert it until the problem is properly fixed.
> > 
> > Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
> 
> NAK. This breaks other drivers with multiple power domains that rely on core
> framework to enable.
> 
> > ---
> > 
> >  drivers/core/device.c | 6 +++---
> >  1 file changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/core/device.c b/drivers/core/device.c
> > index 4e037083a6..c5b232c259 100644
> > --- a/drivers/core/device.c
> > +++ b/drivers/core/device.c
> > @@ -313,6 +313,7 @@ static void *alloc_priv(int size, uint flags)
> >  
> >  int device_probe(struct udevice *dev)
> >  {
> > +	struct power_domain pd;
> >  	const struct driver *drv;
> >  	int size = 0;
> >  	int ret;
> > @@ -396,9 +397,8 @@ int device_probe(struct udevice *dev)
> >  	if (CONFIG_IS_ENABLED(POWER_DOMAIN) && dev->parent &&
> >  	    (device_get_uclass_id(dev) != UCLASS_POWER_DOMAIN) &&
> >  	    !(drv->flags & DM_FLAG_DEFAULT_PD_CTRL_OFF)) {
> > -		ret = dev_power_domain_on(dev);
> > -		if (ret)
> > -			goto fail;
> 
> Can you check by not returning on failure here? If yes then check the
> power-domain/driver that is failing. If any driver doesn't expect core to enable
> power-domain then enable DM_FLAG_DEFAULT_PD_CTRL_OFF in the respective driver.

I'm adding a few other people to this part of the thread as I don't
think breaking some boards to fix other boards is a viable choice, even
at this stage in the release.  Thanks all.

-- 
Tom
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