linux-kernel - Re: [PATCH 1/2] isp1704

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Date:	Fri, 15 Nov 2013 07:45:16 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	Sebastian Reichel <sre@...ian.org>
Cc:	Tony Lindgren <tony@...mide.com>,
	Anton Vorontsov <anton@...msg.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] isp1704_charger: Add DT support

On Thursday 14 November 2013 23:34:19 Sebastian Reichel wrote:
> On Thu, Nov 14, 2013 at 07:05:06PM +0100, Pali Rohár wrote:
> > On Thursday 14 November 2013 13:38:53 Sebastian Reichel 
wrote:
> > > diff --git a/drivers/power/isp1704_charger.c
> > > b/drivers/power/isp1704_charger.c index fc04d19..db96778
> > > 100644
> > > --- a/drivers/power/isp1704_charger.c
> > > +++ b/drivers/power/isp1704_charger.c
> > > @@ -28,6 +28,8 @@
> > > 
> > >  #include <linux/platform_device.h>
> > >  #include <linux/power_supply.h>
> > >  #include <linux/delay.h>
> > > 
> > > +#include <linux/of.h>
> > > +#include <linux/of_gpio.h>
> > > 
> > >  #include <linux/usb/otg.h>
> > >  #include <linux/usb/ulpi.h>
> > > 
> > > @@ -89,8 +91,8 @@ static void
> > > isp1704_charger_set_power(struct isp1704_charger *isp,
> > > bool on) {
> > > 
> > >  	struct isp1704_charger_data	*board =
> > > 
> > > isp->dev->platform_data;
> > > 
> > > -	if (board && board->set_power)
> > > -		board->set_power(on);
> > > +	if (board)
> > > +		gpio_set_value(board->enable_gpio, on);
> > > 
> > >  }
> > 
> > You need to check if enable_gpio in board data was defined
> > or not.
> 
> The device is not successful probed without valid enable_gpio.
> 
> -- Sebastian

Then, OK.

-- 
Pali Rohár
pali.rohar@...il.com

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