[PATCH] ARM: dts: stm32: Reinstate card detect behavior on ST boards

[Patrice CHOTARD]

Hi Patrick

On 6/19/20 11:19 AM, Patrick Delaunay wrote:
> The cd-gpios with (GPIO_ACTIVE_LOW | GPIO_PULL_UP) gpio is thus far
> unsupported, reinstate the old cd-gpios behavior until this handling
> is fully implemented. This avoid potential issue for SDCard boot:
> the card detect fails with floating gpio.
>
> Hi,
>
> I don't have boot issue on my boards (DK2 and EV1) but this
> patch avoids potential issue with floating gpio as issue see
> by Marek on DHSOM.
>
> To be reverted in v2020.10 when the serie [1] is accepted.
>
> The generic impacts in gpio uclass [2] is already accepted
> for V2020.07 and merged in master branch.
>
> [1] stm32mp1: activate gpio hog support and add new pinctrl ops
> http://patchwork.ozlabs.org/project/uboot/list/?series=181294
>
> [2] dm: add support of new binding in gpio and pincontrol
> http://patchwork.ozlabs.org/project/uboot/list/?series=152777&state=*
>
> Patrick
>
> END
>
> Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
> ---
>
>  arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi | 2 ++
>  arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi | 2 ++
>  2 files changed, 4 insertions(+)
>
> diff --git a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> index 3fedb6f1e1..e13dade463 100644
> --- a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> +++ b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
> @@ -171,6 +171,8 @@
>  
>  &sdmmc1 {
>  	u-boot,dm-spl;
> +	broken-cd;
> +	/delete-property/ cd-gpios;
>  };
>  
>  &sdmmc1_b4_pins_a {
> diff --git a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
> index a07c585415..b16dc28d47 100644
> --- a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
> +++ b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
> @@ -167,6 +167,8 @@
>  
>  &sdmmc1 {
>  	u-boot,dm-spl;
> +	broken-cd;
> +	/delete-property/ cd-gpios;
>  };
>  
>  &sdmmc1_b4_pins_a {

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

Thanks

Patrice