linux-kernel - RE: [PATCH 1/4 v3] GPIO: gpio-dwapb: Enable platform driver binding to MFD driver

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Date:	Thu, 11 Sep 2014 00:32:06 +0000
From:	"Chen, Alvin" <alvin.chen@...el.com>
To:	atull <atull@...nsource.altera.com>
CC:	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"Ong, Boon Leong" <boon.leong.ong@...el.com>,
	"Kweh, Hock Leong" <hock.leong.kweh@...el.com>,
	Darren Hart <dvhart@...ux.intel.com>,
	Sebastian Andrzej Siewior <sebastian@...akpoint.cc>,
	"Westerberg, Mika" <mika.westerberg@...el.com>,
	"Shevchenko, Andriy" <andriy.shevchenko@...el.com>,
	Arnd Bergmann <arnd@...db.de>
Subject: RE: [PATCH 1/4 v3] GPIO: gpio-dwapb: Enable platform driver binding
 to MFD driver

> 
> Hi Alvin,
> 
> I did a quick test and this looks like it works for me (with device tree).
> I had a couple of small fixes below.
It is very appreciated to help testing.


> Alan
> 
> >
> > -	port->bgc.gc.ngpio = ngpio;
> > -	port->bgc.gc.of_node = port_np;
> > +#ifdef CONFIG_OF_GPIO
> > +	port->bgc.gc.of_node = pp->node;
> > +#endif
> 
> Please use 'if (IS_ENABLED(CONFIG_OF_GPIO)) as a conditional as you do
> elsewhere.
OK.

> 
> >  static int dwapb_gpio_probe(struct platform_device *pdev)  {
> > +	int i;
> >  	struct resource *res;
> >  	struct dwapb_gpio *gpio;
> > -	struct device_node *np;
> >  	int err;
> > -	unsigned int offs = 0;
> > +	struct device *dev = &pdev->dev;
> > +	struct dwapb_platform_data *pdata = dev_get_platdata(dev);
> > +	bool is_pdata_alloc = !pdata;
> 
> Please combine the int's in one line (int err, i;) and put them as the last one on
> this list.  It looks the same to the compiler of course, but more uniform for
> human eyes :)
OK.

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