Re: [PATCH v3 02/10] pinctrl: sh-pfc: Introduce PINCTRL_SH_FUNC_GPIO helper symbol

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On Wed, Mar 20, 2019 at 11:21:33AM +0100, Geert Uytterhoeven wrote:
> Pinctrl drivers for SuperH platforms use legacy function GPIOs.
> Currently this support is compiled in based on the SUPERH platform
> dependency, which hinders the introduction of compile-testing support
> for the affected pinctrl drivers.
> 
> Introduce a new Kconfig symbol PINCTRL_SH_FUNC_GPIO, which is
> auto-selected when needed.  This symbol in turn selects
> PINCTRL_SH_PFC_GPIO, to reduce the number of per-driver selects.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>

> ---
> v3:
>   - No changes,
> 
> v2:
>   - New.
> ---
>  drivers/pinctrl/sh-pfc/Kconfig  | 30 ++++++++++++++++++------------
>  drivers/pinctrl/sh-pfc/gpio.c   |  8 ++++----
>  drivers/pinctrl/sh-pfc/sh_pfc.h |  2 +-
>  3 files changed, 23 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/pinctrl/sh-pfc/Kconfig b/drivers/pinctrl/sh-pfc/Kconfig
> index e941ba60d4b7c775..6a9e4334dbfa7ec0 100644
> --- a/drivers/pinctrl/sh-pfc/Kconfig
> +++ b/drivers/pinctrl/sh-pfc/Kconfig
> @@ -20,6 +20,12 @@ config PINCTRL_SH_PFC_GPIO
>  	help
>  	  This enables pin control and GPIO drivers for SH/SH Mobile platforms
>  
> +config PINCTRL_SH_FUNC_GPIO
> +	select PINCTRL_SH_PFC_GPIO
> +	bool
> +	help
> +	  This enables legacy function GPIOs for SH platforms
> +
>  config PINCTRL_PFC_EMEV2
>  	def_bool y
>  	depends on ARCH_EMEV2
> @@ -138,17 +144,17 @@ config PINCTRL_PFC_R8A77995
>  config PINCTRL_PFC_SH7203
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7203
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SH7264
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7264
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SH7269
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7269
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SH73A0
>  	def_bool y
> @@ -159,45 +165,45 @@ config PINCTRL_PFC_SH73A0
>  config PINCTRL_PFC_SH7720
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7720
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SH7722
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7722
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SH7723
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7723
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SH7724
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7724
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SH7734
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7734
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SH7757
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7757
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SH7785
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7785
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SH7786
>  	def_bool y
>  	depends on CPU_SUBTYPE_SH7786
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  
>  config PINCTRL_PFC_SHX3
>  	def_bool y
>  	depends on CPU_SUBTYPE_SHX3
> -	select PINCTRL_SH_PFC_GPIO
> +	select PINCTRL_SH_FUNC_GPIO
>  endif
> diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c
> index 4f3a34ee1cd454b8..97c1332c1045739a 100644
> --- a/drivers/pinctrl/sh-pfc/gpio.c
> +++ b/drivers/pinctrl/sh-pfc/gpio.c
> @@ -252,7 +252,7 @@ static int gpio_pin_setup(struct sh_pfc_chip *chip)
>   * Function GPIOs
>   */
>  
> -#ifdef CONFIG_SUPERH
> +#ifdef CONFIG_PINCTRL_SH_FUNC_GPIO
>  static int gpio_function_request(struct gpio_chip *gc, unsigned offset)
>  {
>  	static bool __print_once;
> @@ -292,7 +292,7 @@ static int gpio_function_setup(struct sh_pfc_chip *chip)
>  
>  	return 0;
>  }
> -#endif
> +#endif /* CONFIG_PINCTRL_SH_FUNC_GPIO */
>  
>  /* -----------------------------------------------------------------------------
>   * Register/unregister
> @@ -369,7 +369,7 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
>  	if (IS_ENABLED(CONFIG_OF) && pfc->dev->of_node)
>  		return 0;
>  
> -#ifdef CONFIG_SUPERH
> +#ifdef CONFIG_PINCTRL_SH_FUNC_GPIO
>  	/*
>  	 * Register the GPIO to pin mappings. As pins with GPIO ports
>  	 * must come first in the ranges, skip the pins without GPIO
> @@ -397,7 +397,7 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
>  	chip = sh_pfc_add_gpiochip(pfc, gpio_function_setup, NULL);
>  	if (IS_ERR(chip))
>  		return PTR_ERR(chip);
> -#endif /* CONFIG_SUPERH */
> +#endif /* CONFIG_PINCTRL_SH_FUNC_GPIO */
>  
>  	return 0;
>  }
> diff --git a/drivers/pinctrl/sh-pfc/sh_pfc.h b/drivers/pinctrl/sh-pfc/sh_pfc.h
> index 56016cb76769c97b..754e325d0bdbb48d 100644
> --- a/drivers/pinctrl/sh-pfc/sh_pfc.h
> +++ b/drivers/pinctrl/sh-pfc/sh_pfc.h
> @@ -261,7 +261,7 @@ struct sh_pfc_soc_info {
>  	const struct sh_pfc_function *functions;
>  	unsigned int nr_functions;
>  
> -#ifdef CONFIG_SUPERH
> +#ifdef CONFIG_PINCTRL_SH_FUNC_GPIO
>  	const struct pinmux_func *func_gpios;
>  	unsigned int nr_func_gpios;
>  #endif
> -- 
> 2.17.1
> 



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