[PATCH 1/2] ARM: dts: stm32: Drop nWP GPIO hog on DHSOM

[Patrice CHOTARD]

Hi Marek

On 10/23/21 8:33 PM, Marek Vasut wrote:
> The nWP GPIO hog was used to unlock the SPI NOR write protect when U-Boot
> used to operate the SPI NOR in 1-1-1 mode. Now that the SPI NOR is operated
> in 1-1-4 mode, the hog has adverse effects and causes transfer corruption,
> since the hogged pin is also the IO2 pin. Remove the hogs.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Patrice Chotard <patrice.chotard at foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
> ---
>  arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi | 9 ---------
>  arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi | 9 ---------
>  2 files changed, 18 deletions(-)
> 
> diff --git a/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi
> index 11bc247065b..71b0486f02a 100644
> --- a/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi
> +++ b/arch/arm/dts/stm32mp15xx-dhcom-u-boot.dtsi
> @@ -50,15 +50,6 @@
>  	};
>  };
>  
> -&gpiof {
> -	snor-nwp {
> -		gpio-hog;
> -		gpios = <7 0>;
> -		output-high;
> -		line-name = "spi-nor-nwp";
> -	};
> -};
> -
>  &i2c4 {
>  	u-boot,dm-pre-reloc;
>  };
> diff --git a/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi
> index 9d3db208769..502cd95da05 100644
> --- a/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi
> +++ b/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi
> @@ -25,15 +25,6 @@
>  	u-boot,dm-spl;
>  };
>  
> -&gpiof {
> -	snor-nwp {
> -		gpio-hog;
> -		gpios = <7 0>;
> -		output-high;
> -		line-name = "spi-nor-nwp";
> -	};
> -};
> -
>  &i2c4 {
>  	u-boot,dm-pre-reloc;
>  };
> 

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

Thanks
Patrice