linux-kernel - Re: [PATCH v2 03/10] pinctrl: axp209: use drv_data of pinctrl_pin

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Date:   Sat, 30 Sep 2017 01:27:23 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Quentin Schulz <quentin.schulz@...e-electrons.com>
Cc:     kbuild-all@...org, linus.walleij@...aro.org, robh+dt@...nel.org,
        mark.rutland@....com, wens@...e.org, linux@...linux.org.uk,
        maxime.ripard@...e-electrons.com, lee.jones@...aro.org,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...glegroups.com, thomas.petazzoni@...e-electrons.com,
        Quentin Schulz <quentin.schulz@...e-electrons.com>
Subject: Re: [PATCH v2 03/10] pinctrl: axp209: use drv_data of
 pinctrl_pin_desc to store pin reg

Hi Quentin,

[auto build test WARNING on ]

url:    https://github.com/0day-ci/linux/commits/Quentin-Schulz/add-pinmuxing-support-for-pins-in-AXP209-and-AXP813-PMICs/20170929-162846
base:    
config: arm64-allmodconfig (attached as .config)
compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm64 

All warnings (new ones prefixed by >>):

   drivers//pinctrl/pinctrl-axp209.c: In function 'axp20x_gpio_get_direction':
>> drivers//pinctrl/pinctrl-axp209.c:136:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     int reg = (int)gpio->desc->pins[offset].pin.drv_data;
               ^
   drivers//pinctrl/pinctrl-axp209.c: In function 'axp20x_gpio_set':
   drivers//pinctrl/pinctrl-axp209.c:171:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     int reg = (int)gpio->desc->pins[offset].pin.drv_data;
               ^
   drivers//pinctrl/pinctrl-axp209.c: In function 'axp20x_pmx_set':
   drivers//pinctrl/pinctrl-axp209.c:183:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     int reg = (int)gpio->desc->pins[offset].pin.drv_data;
               ^

vim +136 drivers//pinctrl/pinctrl-axp209.c

   132	
   133	static int axp20x_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
   134	{
   135		struct axp20x_gpio *gpio = gpiochip_get_data(chip);
 > 136		int reg = (int)gpio->desc->pins[offset].pin.drv_data;
   137		unsigned int val;
   138		int ret;
   139	
   140		ret = regmap_read(gpio->regmap, reg, &val);
   141		if (ret)
   142			return ret;
   143	
   144		/*
   145		 * This shouldn't really happen if the pin is in use already,
   146		 * or if it's not in use yet, it doesn't matter since we're
   147		 * going to change the value soon anyway. Default to output.
   148		 */
   149		if ((val & AXP20X_GPIO_FUNCTIONS) > 2)
   150			return 0;
   151	
   152		/*
   153		 * The GPIO directions are the three lowest values.
   154		 * 2 is input, 0 and 1 are output
   155		 */
   156		return val & 2;
   157	}
   158	

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