GPIOX_10 can generate a 32768Hz signal when enabling the "xtal_32k_out"
group with the xtal function. This is typically used as LPO clock for
the SDIO wifi chips.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 arch/arm/boot/dts/meson8.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index 21eb59041a7d..4d18bb4e3c33 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -568,6 +568,14 @@ mux {
 				bias-disable;
 			};
 		};
+
+		xtal_32k_out_pins: xtal-32k-out {
+			mux {
+				groups = "xtal_32k_out";
+				function = "xtal";
+				bias-disable;
+			};
+		};
 	};
 };
 
-- 
2.40.0

On 21/03/2023 18:12, Martin Blumenstingl wrote:
> GPIOX_10 can generate a 32768Hz signal when enabling the "xtal_32k_out"
> group with the xtal function. This is typically used as LPO clock for
> the SDIO wifi chips.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> ---
>   arch/arm/boot/dts/meson8.dtsi | 8 ++++++++
>   1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
> index 21eb59041a7d..4d18bb4e3c33 100644
> --- a/arch/arm/boot/dts/meson8.dtsi
> +++ b/arch/arm/boot/dts/meson8.dtsi
> @@ -568,6 +568,14 @@ mux {
>   				bias-disable;
>   			};
>   		};
> +
> +		xtal_32k_out_pins: xtal-32k-out {
> +			mux {
> +				groups = "xtal_32k_out";
> +				function = "xtal";
> +				bias-disable;
> +			};
> +		};
>   	};
>   };
>   

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>