Subject: Re: randconfig build error with next-20150413, in drivers/spi/spi-bcm2835.c

From: Stephen Warren <[email-masked]>
Date: Mon, 13 Apr 2015 11:06:25 -0600

On 04/13/2015 10:52 AM, Jim Davis wrote:
> Building with the attached random configuration file,
>
> drivers/spi/spi-bcm2835.c: In function 'chip_match_name':
> drivers/spi/spi-bcm2835.c:356:21: error: dereferencing pointer to
> incomplete type
>    return !strcmp(chip->label, data);
>                       ^
> drivers/spi/spi-bcm2835.c: In function 'bcm2835_spi_setup':
> drivers/spi/spi-bcm2835.c:382:2: error: implicit declaration of
> function 'gpiochip_find' [-Werror=implicit-function-declaration]
>    chip = gpiochip_find("pinctrl-bcm2835", chip_match_name);
>    ^
> drivers/spi/spi-bcm2835.c:382:7: warning: assignment makes pointer
> from integer without a cast
>    chip = gpiochip_find("pinctrl-bcm2835", chip_match_name);
>         ^
> drivers/spi/spi-bcm2835.c:387:21: error: dereferencing pointer to
> incomplete type
>    spi->cs_gpio = chip->base + 8 - spi->chip_select;
>                       ^
> drivers/spi/spi-bcm2835.c: In function 'chip_match_name':
> drivers/spi/spi-bcm2835.c:357:1: warning: control reaches end of
> non-void function [-Wreturn-type]
>   }
>   ^

Martin,

I think you need to update spi-bcm2835's Kconfig to add a dependency on 
GPIO.