diff mbox series

[v1,15/25] ARM: dts: stm32: Don't probe red led at boot for stm32mp157a-dk1-u-boot

Message ID 20240409150215.2497778-16-patrice.chotard@foss.st.com
State Accepted
Commit 896fe85cbcda73f322f861fc8710280c75daaf60
Delegated to: Patrick Delaunay
Headers show
Series stm32mp: Fix keys & leds management | expand

Commit Message

Patrice CHOTARD April 9, 2024, 3:02 p.m. UTC
red led and button dedicated to fastboot share the same gpio GPIOA13.
Led driver is probed early so the corresponding gpio is taken and
configured in output which forbid fastboot and stm32prog button usage.

To avoid this, remove the "default-state" property from red led node.

This will avoid to trigger the led driver probe() to configure the led
default state during startup.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
---

 arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi | 1 -
 1 file changed, 1 deletion(-)

Comments

Patrick Delaunay April 17, 2024, 9:09 a.m. UTC | #1
Hi,

On 4/9/24 17:02, Patrice Chotard wrote:
> red led and button dedicated to fastboot share the same gpio GPIOA13.
> Led driver is probed early so the corresponding gpio is taken and
> configured in output which forbid fastboot and stm32prog button usage.
>
> To avoid this, remove the "default-state" property from red led node.
>
> This will avoid to trigger the led driver probe() to configure the led
> default state during startup.
>
> Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
> ---
>
>   arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi | 1 -
>   1 file changed, 1 deletion(-)
>
> diff --git a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> index 6bf6136c5fd..ee9b51d42b7 100644
> --- a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> +++ b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> @@ -67,7 +67,6 @@
>   		red {
>   			label = "error";
>   			gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
> -			default-state = "off";
>   			status = "okay";
>   		};
>   	};



Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>

Thanks
Patrick
Patrice CHOTARD April 19, 2024, 12:27 p.m. UTC | #2
On 4/17/24 11:09, Patrick DELAUNAY wrote:
> Hi,
> 
> On 4/9/24 17:02, Patrice Chotard wrote:
>> red led and button dedicated to fastboot share the same gpio GPIOA13.
>> Led driver is probed early so the corresponding gpio is taken and
>> configured in output which forbid fastboot and stm32prog button usage.
>>
>> To avoid this, remove the "default-state" property from red led node.
>>
>> This will avoid to trigger the led driver probe() to configure the led
>> default state during startup.
>>
>> Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
>> ---
>>
>>   arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi | 1 -
>>   1 file changed, 1 deletion(-)
>>
>> diff --git a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
>> index 6bf6136c5fd..ee9b51d42b7 100644
>> --- a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
>> +++ b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
>> @@ -67,7 +67,6 @@
>>           red {
>>               label = "error";
>>               gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
>> -            default-state = "off";
>>               status = "okay";
>>           };
>>       };
> 
> 
> 
> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
> 
> Thanks
> Patrick
> 

Applied on u-boot-stm32/master
diff mbox series

Patch

diff --git a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
index 6bf6136c5fd..ee9b51d42b7 100644
--- a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
@@ -67,7 +67,6 @@ 
 		red {
 			label = "error";
 			gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
-			default-state = "off";
 			status = "okay";
 		};
 	};