Re: [PATCH v1 1/3] ARM: dts: meson8: add the xtal_32k_out pin

From: neil . armstrong
Date: Wed Mar 22 2023 - 06:29:59 EST


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@xxxxxxxxxxxxxx>
---
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@xxxxxxxxxx>