Re: [PATCH v3 2/2] iio: adc: add ltc2309 support

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Hi Jonathan,

On Sun, Sep 10, 2023 at 03:03:33PM +0100, Jonathan Cameron wrote:
> On Sun, 3 Sep 2023 12:43:41 +0100
> Jonathan Cameron <jic23@xxxxxxxxxx> wrote:
> 
> > On Mon, 28 Aug 2023 22:41:35 -0400
> > Liam Beguin <liambeguin@xxxxxxxxx> wrote:
> > 
> > > The LTC2309 is an 8-Channel, 12-Bit SAR ADC with an I2C Interface.
> > > 
> > > This implements support for all single-ended and differential channels,
> > > in unipolar mode only.
> > > 
> > > Signed-off-by: Liam Beguin <liambeguin@xxxxxxxxx>  
> > Hi Liam,
> > 
> > A few really small editorial bits in here.  I'll fix them whilst applying.
> > Series applied to the togreg branch of iio.git
> > 
> > Note I will be rebasing the tree on rc1 once available and in the meantime
> > this will only be pushed out as testing.
> 
> A couple more static analysis reports came in (unreachable return in one pace
> and a missing static.  I've fixed up in my tree.

My apologies for the delay, I was away for a few days.

Thanks for making those changes, I'll go over the comments and the
reports, and if there's anything left, I'll send an update.

> Thanks,
> 
> Jonathan

Thanks again for your time,

Liam

> 
> > 
> > Thanks,
> > 
> > Jonathan
> > 
> > 
> > 
> > > +/**
> > > + * struct ltc2309 - internal device data structure
> > > + * @dev:	Device reference
> > > + * @client:	I2C reference
> > > + * @vref:	External reference source
> > > + * @lock:	Lock to serialize data access
> > > + * @vref_mv	Internal voltage reference  
> > 
> > Missing : which is what the bot picked up on.
> > 
> > > + */
> > > +struct ltc2309 {
> > > +	struct device		*dev;
> > > +	struct i2c_client	*client;
> > > +	struct regulator	*vref;
> > > +	struct mutex		lock; /* serialize data access */
> > > +	int			vref_mv;
> > > +};  
> > 
> > > +
> > > +void ltc2309_regulator_disable(void *regulator)
> > > +{
> > > +	struct regulator *r = (struct regulator *)regulator;  
> > 
> > Never any need to explicitly cast from a void * to any other pointer type.
> > (C spec says it is always fine to do this :)
> > 
> > Given type is obvious from use, can just do
> > 	regulator_disable(regulator);
> > and lose the local variable.
> > 
> > > +
> > > +	regulator_disable(r);
> > > +}  
> > 
> > ..
> > > +
> > > +static const struct of_device_id ltc2309_of_match[] = {
> > > +	{ .compatible = "lltc,ltc2309" },
> > > +	{ }
> > > +};
> > > +MODULE_DEVICE_TABLE(of, ltc2309_of_match);
> > > +
> > > +static const struct i2c_device_id ltc2309_id[] = {
> > > +	{ "ltc2309" },
> > > +	{}  
> > 
> > Trivial but space between { and } for consistency.
> > 
> > 
> 




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