linux-kernel - [PATCH v1 1/3] ARM: dts: meson8: add the xtal_32k

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Date:   Tue, 21 Mar 2023 18:12:11 +0100
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     linux-amlogic@...ts.infradead.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        neil.armstrong@...aro.org,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: [PATCH v1 1/3] ARM: dts: meson8: add the xtal_32k_out pin

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@...glemail.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