[PATCH v3 2/2] rockchip: rk3399: fix incorrect ifdef check on SPL_GPIO

[Kever Yang]

On 2022/7/22 17:30, Quentin Schulz wrote:
> From: Quentin Schulz <quentin.schulz at 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 in-code check as it is the preferred
> inclusion/exclusion mechanism.
>
> Fixes: 07586ee4322a ("rockchip: rk3399: Support common spl_board_init")
> Cc: Quentin Schulz <foss+uboot at 0leil.net>
> Signed-off-by: Quentin Schulz <quentin.schulz at theobroma-systems.com>

Reviewed-by: Kever Yang <kever.yang at rock-chips.com>

Thanks,
- Kever
> ---
>
> v3:
>   - always include header to fix compilation for boards with
>   CONFIG_SPL_GPIO disabled,
>   - always define rk3399_force_power_on_reset function by using an
>   in-code IS_ENABLED check instead of an ifdef to fix compilation for
>   boards with CONFIG_SPL_GPIO disabled,
>
> v2:
>   - use IS_ENABLED checks,
>
>   arch/arm/mach-rockchip/rk3399/rk3399.c | 50 ++++++++++++++------------
>   1 file changed, 28 insertions(+), 22 deletions(-)
>
> diff --git a/arch/arm/mach-rockchip/rk3399/rk3399.c b/arch/arm/mach-rockchip/rk3399/rk3399.c
> index 8205511c25..fc1acaf4bd 100644
> --- a/arch/arm/mach-rockchip/rk3399/rk3399.c
> +++ b/arch/arm/mach-rockchip/rk3399/rk3399.c
> @@ -15,6 +15,7 @@
>   #include <asm/io.h>
>   #include <asm/arch-rockchip/bootrom.h>
>   #include <asm/arch-rockchip/clock.h>
> +#include <asm/arch-rockchip/cru.h>
>   #include <asm/arch-rockchip/gpio.h>
>   #include <asm/arch-rockchip/grf_rk3399.h>
>   #include <asm/arch-rockchip/hardware.h>
> @@ -221,12 +222,17 @@ void spl_perform_fixups(struct spl_image_info *spl_image)
>   			   "u-boot,spl-boot-device", boot_ofpath);
>   }
>   
> -#if defined(SPL_GPIO)
>   static void rk3399_force_power_on_reset(void)
>   {
>   	ofnode node;
>   	struct gpio_desc sysreset_gpio;
>   
> +	if (!IS_ENABLED(CONFIG_SPL_GPIO)) {
> +		debug("%s: trying to force a power-on reset but no GPIO "
> +		      "support in SPL!\n", __func__);
> +		return;
> +	}
> +
>   	debug("%s: trying to force a power-on reset\n", __func__);
>   
>   	node = ofnode_path("/config");
> @@ -243,7 +249,6 @@ static void rk3399_force_power_on_reset(void)
>   
>   	dm_gpio_set_value(&sysreset_gpio, 1);
>   }
> -#endif
>   
>   void __weak led_setup(void)
>   {
> @@ -253,27 +258,28 @@ 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();
>   
> -	/*
> -	 * The RK3399 resets only 'almost all logic' (see also in the TRM
> -	 * "3.9.4 Global software reset"), when issuing a software reset.
> -	 * This may cause issues during boot-up for some configurations of
> -	 * the application software stack.
> -	 *
> -	 * To work around this, we test whether the last reset reason was
> -	 * a power-on reset and (if not) issue an overtemp-reset to reset
> -	 * the entire module.
> -	 *
> -	 * While this was previously fixed by modifying the various places
> -	 * that could generate a software reset (e.g. U-Boot's sysreset
> -	 * driver, the ATF or Linux), we now have it here to ensure that
> -	 * we no longer have to track this through the various components.
> -	 */
> -	if (cru->glb_rst_st != 0)
> -		rk3399_force_power_on_reset();
> -#endif
> +		/*
> +		 * The RK3399 resets only 'almost all logic' (see also in the
> +		 * TRM "3.9.4 Global software reset"), when issuing a software
> +		 * reset. This may cause issues during boot-up for some
> +		 * configurations of the application software stack.
> +		 *
> +		 * To work around this, we test whether the last reset reason
> +		 * was a power-on reset and (if not) issue an overtemp-reset to
> +		 * reset the entire module.
> +		 *
> +		 * While this was previously fixed by modifying the various
> +		 * places that could generate a software reset (e.g. U-Boot's
> +		 * sysreset driver, the ATF or Linux), we now have it here to
> +		 * ensure that we no longer have to track this through the
> +		 * various components.
> +		 */
> +		if (cru->glb_rst_st != 0)
> +			rk3399_force_power_on_reset();
> +	}
>   
>   	if (IS_ENABLED(CONFIG_SPL_DM_REGULATOR)) {
>   		/*