gpio/samsung: Move SoC specific codes within macro

In drivers/gpio/gpio-samsung.c, there are certain structures
and functions which are not getting used if the particular
CPU is not selected. These code segments are moved under CPU
specific macros to remove compilation warnings.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
---
It has been build tested with s3c2410_defconfig, s3c6400_defconfig,
s5p64x0_defconfig, s5pc100_defconfig, s5pv210_defconfig and
exynos4_defconfig.

The patch has been rebased onto
Commit: gpio/samsung: correct pin configuration for S5PC100/S5PC110/EXYNOS4

on git://github.com/kgene/linux-samsung.git (next/topic-gpio-samsung)

 drivers/gpio/gpio-samsung.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

On Mon, Oct 03, 2011 at 08:59:19AM +0530, Tushar Behera wrote:
> In drivers/gpio/gpio-samsung.c, there are certain structures
> and functions which are not getting used if the particular
> CPU is not selected. These code segments are moved under CPU
> specific macros to remove compilation warnings.
> 
> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>

Acked-by: Grant Likely <grant.likely@secretlab.ca>

> ---
> It has been build tested with s3c2410_defconfig, s3c6400_defconfig,
> s5p64x0_defconfig, s5pc100_defconfig, s5pv210_defconfig and
> exynos4_defconfig.
> 
> The patch has been rebased onto
> Commit: gpio/samsung: correct pin configuration for S5PC100/S5PC110/EXYNOS4
> 
> on git://github.com/kgene/linux-samsung.git (next/topic-gpio-samsung)
> 
>  drivers/gpio/gpio-samsung.c |   10 ++++++++++
>  1 files changed, 10 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
> index b6be77a..33d62d1 100644
> --- a/drivers/gpio/gpio-samsung.c
> +++ b/drivers/gpio/gpio-samsung.c
> @@ -318,6 +318,7 @@ static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip,
>  	return S3C_GPIO_SPECIAL(con);
>  }
>  
> +#ifdef CONFIG_PLAT_S3C24XX
>  /*
>   * s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank A)
>   * @chip: The gpio chip that is being configured.
> @@ -379,7 +380,9 @@ static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip,
>  
>  	return S3C_GPIO_SFN(con);
>  }
> +#endif
>  
> +#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
>  static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
>  				     unsigned int off, unsigned int cfg)
>  {
> @@ -417,6 +420,7 @@ static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
>  
>  	return 0;
>  }
> +#endif
>  
>  static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg,
>  					   int nr_chips)
> @@ -438,10 +442,12 @@ struct samsung_gpio_cfg s3c24xx_gpiocfg_default = {
>  	.get_config	= samsung_gpio_getcfg_2bit,
>  };
>  
> +#ifdef CONFIG_PLAT_S3C24XX
>  static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
>  	.set_config	= s3c24xx_gpio_setcfg_abank,
>  	.get_config	= s3c24xx_gpio_getcfg_abank,
>  };
> +#endif
>  
>  static struct samsung_gpio_cfg exynos4_gpio_cfg = {
>  	.set_pull	= exynos4_gpio_setpull,
> @@ -450,6 +456,7 @@ static struct samsung_gpio_cfg exynos4_gpio_cfg = {
>  	.get_config	= samsung_gpio_getcfg_4bit,
>  };
>  
> +#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
>  static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
>  	.cfg_eint	= 0x3,
>  	.set_config	= s5p64x0_gpio_setcfg_rbank,
> @@ -457,6 +464,7 @@ static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
>  	.set_pull	= samsung_gpio_setpull_updown,
>  	.get_pull	= samsung_gpio_getpull_updown,
>  };
> +#endif
>  
>  static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
>  	{
> @@ -682,6 +690,7 @@ static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip,
>  	return 0;
>  }
>  
> +#ifdef CONFIG_PLAT_S3C24XX
>  /* The next set of routines are for the case of s3c24xx bank a */
>  
>  static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
> @@ -717,6 +726,7 @@ static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
>  	local_irq_restore(flags);
>  	return 0;
>  }
> +#endif
>  
>  /* The next set of routines are for the case of s5p64x0 bank r */
>  
> -- 
> 1.7.4.1
>

Grant Likely wrote:
> 
> On Mon, Oct 03, 2011 at 08:59:19AM +0530, Tushar Behera wrote:
> > In drivers/gpio/gpio-samsung.c, there are certain structures
> > and functions which are not getting used if the particular
> > CPU is not selected. These code segments are moved under CPU
> > specific macros to remove compilation warnings.
> >
> > Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
> 
> Acked-by: Grant Likely <grant.likely@secretlab.ca>
> 
When I applied, following error was happened with s5p64x0_defconfig. Others,
ok.

...
Inconsistent kallsyms data
This is a bug - please report about it
Try make KALLSYMS_EXTRA_PASS=1 as a workaround
make: *** [vmlinux] Error 1

And it seems due to add condition around the 'static unsigned
s3c24xx_gpio_getcfg_abank()'.

I need to check it in detail and if any problems, let you know.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.

> > ---
> > It has been build tested with s3c2410_defconfig, s3c6400_defconfig,
> > s5p64x0_defconfig, s5pc100_defconfig, s5pv210_defconfig and
> > exynos4_defconfig.
> >
> > The patch has been rebased onto
> > Commit: gpio/samsung: correct pin configuration for
> S5PC100/S5PC110/EXYNOS4
> >
> > on git://github.com/kgene/linux-samsung.git (next/topic-gpio-samsung)
> >
> >  drivers/gpio/gpio-samsung.c |   10 ++++++++++
> >  1 files changed, 10 insertions(+), 0 deletions(-)
> >
> > diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
> > index b6be77a..33d62d1 100644
> > --- a/drivers/gpio/gpio-samsung.c
> > +++ b/drivers/gpio/gpio-samsung.c
> > @@ -318,6 +318,7 @@ static unsigned samsung_gpio_getcfg_4bit(struct
> samsung_gpio_chip *chip,
> >  	return S3C_GPIO_SPECIAL(con);
> >  }
> >
> > +#ifdef CONFIG_PLAT_S3C24XX
> >  /*
> >   * s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank
A)
> >   * @chip: The gpio chip that is being configured.
> > @@ -379,7 +380,9 @@ static unsigned s3c24xx_gpio_getcfg_abank(struct
> samsung_gpio_chip *chip,
> >
> >  	return S3C_GPIO_SFN(con);
> >  }
> > +#endif
> >
> > +#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
> >  static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
> >  				     unsigned int off, unsigned int cfg)
> >  {
> > @@ -417,6 +420,7 @@ static int s5p64x0_gpio_setcfg_rbank(struct
> samsung_gpio_chip *chip,
> >
> >  	return 0;
> >  }
> > +#endif
> >
> >  static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg
*chipcfg,
> >  					   int nr_chips)
> > @@ -438,10 +442,12 @@ struct samsung_gpio_cfg s3c24xx_gpiocfg_default =
> {
> >  	.get_config	= samsung_gpio_getcfg_2bit,
> >  };
> >
> > +#ifdef CONFIG_PLAT_S3C24XX
> >  static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
> >  	.set_config	= s3c24xx_gpio_setcfg_abank,
> >  	.get_config	= s3c24xx_gpio_getcfg_abank,
> >  };
> > +#endif
> >
> >  static struct samsung_gpio_cfg exynos4_gpio_cfg = {
> >  	.set_pull	= exynos4_gpio_setpull,
> > @@ -450,6 +456,7 @@ static struct samsung_gpio_cfg exynos4_gpio_cfg = {
> >  	.get_config	= samsung_gpio_getcfg_4bit,
> >  };
> >
> > +#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
> >  static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
> >  	.cfg_eint	= 0x3,
> >  	.set_config	= s5p64x0_gpio_setcfg_rbank,
> > @@ -457,6 +464,7 @@ static struct samsung_gpio_cfg
> s5p64x0_gpio_cfg_rbank = {
> >  	.set_pull	= samsung_gpio_setpull_updown,
> >  	.get_pull	= samsung_gpio_getpull_updown,
> >  };
> > +#endif
> >
> >  static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
> >  	{
> > @@ -682,6 +690,7 @@ static int samsung_gpiolib_4bit2_output(struct
gpio_chip
> *chip,
> >  	return 0;
> >  }
> >
> > +#ifdef CONFIG_PLAT_S3C24XX
> >  /* The next set of routines are for the case of s3c24xx bank a */
> >
> >  static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned
offset)
> > @@ -717,6 +726,7 @@ static int s3c24xx_gpiolib_banka_output(struct
> gpio_chip *chip,
> >  	local_irq_restore(flags);
> >  	return 0;
> >  }
> > +#endif
> >
> >  /* The next set of routines are for the case of s5p64x0 bank r */
> >
> > --
> > 1.7.4.1
> >

Kukjin Kim wrote:
> 
> Grant Likely wrote:
> >
> > On Mon, Oct 03, 2011 at 08:59:19AM +0530, Tushar Behera wrote:
> > > In drivers/gpio/gpio-samsung.c, there are certain structures
> > > and functions which are not getting used if the particular
> > > CPU is not selected. These code segments are moved under CPU
> > > specific macros to remove compilation warnings.
> > >
> > > Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
> >
> > Acked-by: Grant Likely <grant.likely@secretlab.ca>
> >
> When I applied, following error was happened with s5p64x0_defconfig.
Others, ok.
> 
> ...
> Inconsistent kallsyms data
> This is a bug - please report about it
> Try make KALLSYMS_EXTRA_PASS=1 as a workaround
> make: *** [vmlinux] Error 1
> 
> And it seems due to add condition around the 'static unsigned
> s3c24xx_gpio_getcfg_abank()'.
> 
> I need to check it in detail and if any problems, let you know.
> 
There is no above problem now in my -next. Applied.
Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.