[v2,04/12] board: stm32mp1: update management of boot-led

Force boot-led ON and no more rely on default-state.
This patch avoid device-tree modification for U-Boot.


Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---

Changes in v2:
- use CONFIG_IS_ENABLED(LED) everywhere

 arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi |  4 ---
 arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi |  4 ---
 board/st/stm32mp1/stm32mp1.c             | 33 ++++++++++++------------
 3 files changed, 16 insertions(+), 25 deletions(-)

On 4/22/20 2:29 PM, Patrick Delaunay wrote:
> Force boot-led ON and no more rely on default-state.
> This patch avoid device-tree modification for U-Boot.
>
>
> Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
> ---
>
> Changes in v2:
> - use CONFIG_IS_ENABLED(LED) everywhere
>
>  arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi |  4 ---
>  arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi |  4 ---
>  board/st/stm32mp1/stm32mp1.c             | 33 ++++++++++++------------
>  3 files changed, 16 insertions(+), 25 deletions(-)
>
> diff --git a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> index 5844d41c53..c52abeb1e7 100644
> --- a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> +++ b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> @@ -27,10 +27,6 @@
>  			default-state = "off";
>  			status = "okay";
>  		};
> -
> -		blue {
> -			default-state = "on";
> -		};
>  	};
>  };
>  
> diff --git a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
> index ed2f024be9..84af7fa47b 100644
> --- a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
> +++ b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
> @@ -28,10 +28,6 @@
>  			default-state = "off";
>  			status = "okay";
>  		};
> -
> -		blue {
> -			default-state = "on";
> -		};
>  	};
>  };
>  
> diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
> index d85a57cee2..6a3e2e64bf 100644
> --- a/board/st/stm32mp1/stm32mp1.c
> +++ b/board/st/stm32mp1/stm32mp1.c
> @@ -260,7 +260,6 @@ int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
>  
>  #endif /* CONFIG_USB_GADGET */
>  
> -#ifdef CONFIG_LED
>  static int get_led(struct udevice **dev, char *led_string)
>  {
>  	char *led_name;
> @@ -286,6 +285,9 @@ static int setup_led(enum led_state_t cmd)
>  	struct udevice *dev;
>  	int ret;
>  
> +	if (!CONFIG_IS_ENABLED(LED))
> +		return 0;
> +
>  	ret = get_led(&dev, "u-boot,boot-led");
>  	if (ret)
>  		return ret;
> @@ -293,32 +295,29 @@ static int setup_led(enum led_state_t cmd)
>  	ret = led_set_state(dev, cmd);
>  	return ret;
>  }
> -#endif
>  
>  static void __maybe_unused led_error_blink(u32 nb_blink)
>  {
> -#ifdef CONFIG_LED
>  	int ret;
>  	struct udevice *led;
>  	u32 i;
> -#endif
>  
>  	if (!nb_blink)
>  		return;
>  
> -#ifdef CONFIG_LED
> -	ret = get_led(&led, "u-boot,error-led");
> -	if (!ret) {
> -		/* make u-boot,error-led blinking */
> -		/* if U32_MAX and 125ms interval, for 17.02 years */
> -		for (i = 0; i < 2 * nb_blink; i++) {
> -			led_set_state(led, LEDST_TOGGLE);
> -			mdelay(125);
> -			WATCHDOG_RESET();
> +	if (CONFIG_IS_ENABLED(LED)) {
> +		ret = get_led(&led, "u-boot,error-led");
> +		if (!ret) {
> +			/* make u-boot,error-led blinking */
> +			/* if U32_MAX and 125ms interval, for 17.02 years */
> +			for (i = 0; i < 2 * nb_blink; i++) {
> +				led_set_state(led, LEDST_TOGGLE);
> +				mdelay(125);
> +				WATCHDOG_RESET();
> +			}
> +			led_set_state(led, LEDST_ON);
>  		}
> -		led_set_state(led, LEDST_ON);
>  	}
> -#endif
>  
>  	/* infinite: the boot process must be stopped */
>  	if (nb_blink == U32_MAX)
> @@ -651,6 +650,8 @@ int board_init(void)
>  	if (CONFIG_IS_ENABLED(LED))
>  		led_default_state();
>  
> +	setup_led(LEDST_ON);
> +
>  	return 0;
>  }
>  
> @@ -705,9 +706,7 @@ int board_late_init(void)
>  
>  void board_quiesce_devices(void)
>  {
> -#ifdef CONFIG_LED
>  	setup_led(LEDST_OFF);
> -#endif
>  }
>  
>  /* eth init function : weak called in eqos driver */

Reviewed-by: Patrice Chotard <patrice.chotard at st.com>

Thanks

Patrice