[U-Boot] [PATCH 2/2] OMAP: gpio: Introduce get_omap_gpio_count() function to get gpio count

[Lubomir Popov]

Axel,

Why do you introduce a function when this stuff is constant and known
to the compiler? Just put a #define in every header. You are now
uselessly inflating code...

Regards,
Lubo

On 21/06/13 11:50, Axel Lin wrote:
> Now the omap_gpio driver is used by AM33XX, OMAP3/4, OMAP54XX and DRA7XX SoCs.
> These SoCs have various gpio count. Thus introduce get_omap_gpio_count()
> function to get correct gpio count.
> 
> Signed-off-by: Axel Lin <axel.lin at ingics.com>
> ---
>  arch/arm/cpu/armv7/am33xx/board.c | 5 +++++
>  arch/arm/cpu/armv7/omap3/board.c  | 5 +++++
>  arch/arm/cpu/armv7/omap4/hwinit.c | 5 +++++
>  arch/arm/cpu/armv7/omap5/hwinit.c | 5 +++++
>  arch/arm/include/asm/omap_gpio.h  | 1 +
>  drivers/gpio/omap_gpio.c          | 2 +-
>  6 files changed, 22 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c
> index 885fb2d..405d649 100644
> --- a/arch/arm/cpu/armv7/am33xx/board.c
> +++ b/arch/arm/cpu/armv7/am33xx/board.c
> @@ -51,6 +51,11 @@ static const struct gpio_bank gpio_bank_am33xx[4] = {
>  
>  const struct gpio_bank *const omap_gpio_bank = gpio_bank_am33xx;
>  
> +unsigned int get_omap_gpio_count(void)
> +{
> +	return ARRAY_SIZE(gpio_bank_am33xx) * 32;
> +}
> +
>  #if defined(CONFIG_OMAP_HSMMC) && !defined(CONFIG_SPL_BUILD)
>  int cpu_mmc_init(bd_t *bis)
>  {
> diff --git a/arch/arm/cpu/armv7/omap3/board.c b/arch/arm/cpu/armv7/omap3/board.c
> index b72fadc..950b13f 100644
> --- a/arch/arm/cpu/armv7/omap3/board.c
> +++ b/arch/arm/cpu/armv7/omap3/board.c
> @@ -65,6 +65,11 @@ static const struct gpio_bank gpio_bank_34xx[6] = {
>  
>  const struct gpio_bank *const omap_gpio_bank = gpio_bank_34xx;
>  
> +unsigned int get_omap_gpio_count(void)
> +{
> +	return ARRAY_SIZE(gpio_bank_34xx) * 32;
> +}
> +
>  #ifdef CONFIG_SPL_BUILD
>  /*
>  * We use static variables because global data is not ready yet.
> diff --git a/arch/arm/cpu/armv7/omap4/hwinit.c b/arch/arm/cpu/armv7/omap4/hwinit.c
> index 81f5a48..3212980 100644
> --- a/arch/arm/cpu/armv7/omap4/hwinit.c
> +++ b/arch/arm/cpu/armv7/omap4/hwinit.c
> @@ -51,6 +51,11 @@ static const struct gpio_bank gpio_bank_44xx[6] = {
>  
>  const struct gpio_bank *const omap_gpio_bank = gpio_bank_44xx;
>  
> +unsigned int get_omap_gpio_count(void)
> +{
> +	return ARRAY_SIZE(gpio_bank_44xx) * 32;
> +}
> +
>  #ifdef CONFIG_SPL_BUILD
>  /*
>   * Some tuning of IOs for optimal power and performance
> diff --git a/arch/arm/cpu/armv7/omap5/hwinit.c b/arch/arm/cpu/armv7/omap5/hwinit.c
> index 11ba36b..58c77e7 100644
> --- a/arch/arm/cpu/armv7/omap5/hwinit.c
> +++ b/arch/arm/cpu/armv7/omap5/hwinit.c
> @@ -56,6 +56,11 @@ static struct gpio_bank gpio_bank_54xx[8] = {
>  
>  const struct gpio_bank *const omap_gpio_bank = gpio_bank_54xx;
>  
> +unsigned int get_omap_gpio_count(void)
> +{
> +	return ARRAY_SIZE(gpio_bank_54xx) * 32;
> +}
> +
>  #ifdef CONFIG_SPL_BUILD
>  /* LPDDR2 specific IO settings */
>  static void io_settings_lpddr2(void)
> diff --git a/arch/arm/include/asm/omap_gpio.h b/arch/arm/include/asm/omap_gpio.h
> index 1ebfa86..5e25707 100644
> --- a/arch/arm/include/asm/omap_gpio.h
> +++ b/arch/arm/include/asm/omap_gpio.h
> @@ -46,6 +46,7 @@ struct gpio_bank {
>  };
>  
>  extern const struct gpio_bank *const omap_gpio_bank;
> +extern unsigned int get_omap_gpio_count(void);
>  
>  #define METHOD_GPIO_24XX	4
>  
> diff --git a/drivers/gpio/omap_gpio.c b/drivers/gpio/omap_gpio.c
> index a30d7f0..1088803 100644
> --- a/drivers/gpio/omap_gpio.c
> +++ b/drivers/gpio/omap_gpio.c
> @@ -55,7 +55,7 @@ static inline int get_gpio_index(int gpio)
>  
>  int gpio_is_valid(int gpio)
>  {
> -	return (gpio >= 0) && (gpio < 192);
> +	return (gpio >= 0) && (gpio < get_omap_gpio_count());
>  }
>  
>  static int check_gpio(int gpio)
>