Re: [PATCH v7 05/10] i2c: core: call of_i2c_setup_smbus_alert in i2c_register_adapter

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On Jun 19 2017 or thereabouts, Wolfram Sang wrote:
> On Thu, Jun 15, 2017 at 09:59:33PM +0800, Phil Reid wrote:
> > Add a call to of_i2c_setup_smbus_alert when a i2c adapter is registered
> > so the the smbalert driver can be registered.
> > 
> > Signed-off-by: Phil Reid <preid@xxxxxxxxxxxxxxxxx>
> 
> CCing Benjamin
> 
> > ---
> >  drivers/i2c/i2c-core.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
> > index d2402bb..626471b 100644
> > --- a/drivers/i2c/i2c-core.c
> > +++ b/drivers/i2c/i2c-core.c
> > @@ -40,6 +40,7 @@
> >  #include <linux/gpio.h>
> >  #include <linux/hardirq.h>
> >  #include <linux/i2c.h>
> > +#include <linux/i2c-smbus.h>
> >  #include <linux/idr.h>
> >  #include <linux/init.h>
> >  #include <linux/irqflags.h>
> > @@ -2045,6 +2046,9 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
> >  		dev_warn(&adap->dev,
> >  			 "Failed to create compatibility class link\n");
> >  #endif
> > +	res = of_i2c_setup_smbus_alert(adap);
> > +	if (res)
> > +		goto out_list;

See my concerns in patch 4/10.

In addition, shouldn't this be placed before device_register() for the
least? pm_runtime_enable() would require a matching pm_runtime_disable(),
and device_register() some unregistering behavior too.

Cheers,
Benjamin

> >  
> >  	i2c_init_recovery(adap);
> >  
> > -- 
> > 1.8.3.1
> > 


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