[PATCH] arm64: zynqmp: Disable Tri-state for SDIO

[Michal Simek]

On 3/21/24 09:52, Tejas Bhumkar wrote:
> Since the zynqmp pinctrl driver now includes support for the
> tri-state registers, ensure that the pins needing output-enable
> are correctly configured for SOMs.
> 
> Currently, there is an issue with the detection of the MMC for
> the SOM kv260, resulting in the following error:
> ZynqMP> mmc dev 1
> Card did not respond to voltage select! : -110
> 
> To address this problem, configure the SDIO pins for output-enable
> to enable MMC detection.
> 
> Signed-off-by: Michal Simek <michal.simek at amd.com>
> Signed-off-by: Tejas Bhumkar <tejas.arvind.bhumkar at amd.com>
> ---
>   arch/arm/dts/zynqmp-sck-kv-g-revA.dtso | 1 +
>   arch/arm/dts/zynqmp-sck-kv-g-revB.dtso | 1 +
>   2 files changed, 2 insertions(+)
> 
> diff --git a/arch/arm/dts/zynqmp-sck-kv-g-revA.dtso b/arch/arm/dts/zynqmp-sck-kv-g-revA.dtso
> index 6d0d5c487d..561b546e37 100644
> --- a/arch/arm/dts/zynqmp-sck-kv-g-revA.dtso
> +++ b/arch/arm/dts/zynqmp-sck-kv-g-revA.dtso
> @@ -342,6 +342,7 @@
>   			slew-rate = <SLEW_RATE_SLOW>;
>   			power-source = <IO_STANDARD_LVCMOS18>;
>   			bias-disable;
> +			output-enable;
>   		};
>   
>   		conf-cd {
> diff --git a/arch/arm/dts/zynqmp-sck-kv-g-revB.dtso b/arch/arm/dts/zynqmp-sck-kv-g-revB.dtso
> index a4b4465d20..13876fb47d 100644
> --- a/arch/arm/dts/zynqmp-sck-kv-g-revB.dtso
> +++ b/arch/arm/dts/zynqmp-sck-kv-g-revB.dtso
> @@ -329,6 +329,7 @@
>   			slew-rate = <SLEW_RATE_SLOW>;
>   			power-source = <IO_STANDARD_LVCMOS18>;
>   			bias-disable;
> +			output-enable;
>   		};
>   
>   		conf-cd {

Applied.
M