Re: [SPAM] [PATCH v2 2/2] rockchip: rk3399: fix incorrect ifdef check on SPL_GPIO

[Xavier Drudis Ferran <xdrudis@tinet.cat>]

El Fri, Jul 15, 2022 at 05:09:49PM +0200, Quentin Schulz deia:
> From: Quentin Schulz <quentin.schulz@theobroma-systems.com>
> 
> The check to perform is on CONFIG_SPL_GPIO and not SPL_GPIO.
> Because this was never compiled in, it missed an include of cru.h that
> was not detected before. Let's include it too.
> 
> Also switch to IS_ENABLED ifdef and in-code check.
>

Thank you. That helps when CONGIF_SPL_GPIO is enabled.
 But in case CONFIG_SPL_GPIO is disabled...
 
> Fixes: 07586ee4322a ("rockchip: rk3399: Support common spl_board_init")
> Cc: Quentin Schulz <foss+uboot@0leil.net>
> Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
> ---
> 
> v2:
>  - use IS_ENABLED checks,
> 
>  arch/arm/mach-rockchip/rk3399/rk3399.c | 45 ++++++++++++++------------
>  1 file changed, 24 insertions(+), 21 deletions(-)
> 
> diff --git a/arch/arm/mach-rockchip/rk3399/rk3399.c b/arch/arm/mach-rockchip/rk3399/rk3399.c
> index 920da22307..db8a6cb83a 100644
> --- a/arch/arm/mach-rockchip/rk3399/rk3399.c
> +++ b/arch/arm/mach-rockchip/rk3399/rk3399.c
> @@ -221,7 +221,9 @@ void spl_perform_fixups(struct spl_image_info *spl_image)
>  			   "u-boot,spl-boot-device", boot_ofpath);
>  }
>  
> -#if defined(SPL_GPIO)
> +#if IS_ENABLED(CONFIG_SPL_GPIO)
> +
> +#include <asm/arch-rockchip/cru.h>

then (if CONFIG_SPL_GPIO is disabled...) the include is not in effect, but the call to 

>  static void rk3399_force_power_on_reset(void)
>  {
>  	ofnode node;

the  #endif for that #if is somewhere over here.

> @@ -253,27 +255,28 @@ void spl_board_init(void)
>  {
>  	led_setup();
>  
> -#if defined(SPL_GPIO)
> -	struct rockchip_cru *cru = rockchip_get_cru();
> +	if (IS_ENABLED(CONFIG_SPL_GPIO)) {
> +		struct rockchip_cru *cru = rockchip_get_cru();
>  
[...]
> +		/*
[...]
> +		 */
> +		if (cru->glb_rst_st != 0)

This gives me a compilation error (rock-pi-4, CONFIG_SPL_GPIO disabled), 
because of the missing include defining rockchip_cru
(and glb_rst_st as a member of it)

> +			rk3399_force_power_on_reset();

This gives a warning, because the function declaration is #ifdefed out.

So we could leave the include outside the #if defined(SPL_GPIO)
and add an inline dummy function in #else, 

or we could change the if (IS_ENABLED(CONFIG_SPL_GPIO)) to 
#if (IS_ENABLED(CONFIG_SPL_GPIO))

I think the first is preferred in U-Boot, but not sure if that might
somehow make SPL bigger or something. I don't think so.