RE: [PATCH net-next v8 6/9] net: txgbe: Support GPIO to SFP socket

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> > +static int txgbe_gpio_init(struct txgbe *txgbe)
> > +{
> > +	struct gpio_irq_chip *girq;
> > +	struct wx *wx = txgbe->wx;
> > +	struct gpio_chip *gc;
> > +	struct device *dev;
> > +	int ret;
> 
> > +	dev = &wx->pdev->dev;
> 
> This can be united with the defintion above.
> 
> 	struct device *dev = &wx->pdev->dev;
> 

This is a question that I often run into, when I want to keep this order,
i.e. lines longest to shortest, but the line of the pointer which get later
is longer. For this example:

	struct wx *wx = txgbe->wx;
	struct device *dev = &wx->pdev->dev;

should I split the line, or put the long line abruptly there?

> > +	gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
> > +	if (!gc)
> > +		return -ENOMEM;
> > +
> > +	gc->label = devm_kasprintf(dev, GFP_KERNEL, "txgbe_gpio-%x",
> > +				   (wx->pdev->bus->number << 8) | wx->pdev->devfn);
> > +	gc->base = -1;
> > +	gc->ngpio = 6;
> > +	gc->owner = THIS_MODULE;
> > +	gc->parent = dev;
> > +	gc->fwnode = software_node_fwnode(txgbe->nodes.group[SWNODE_GPIO]);
> 
> Looking at the I²C case, I'm wondering if gpio-regmap can be used for this piece.

I can access this GPIO region directly, do I really need to use regmap?
 




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