[PATCH 4/4] arm64: dts: mediatek: mt8186: Fix systimer 13 MHz clock description

From: Chen-Yu Tsai
Date: Thu Dec 01 2022 - 03:43:02 EST


The systimer block derives its 13 MHz clock by dividing the main 26 MHz
oscillator clock by 2 internally. The 13 MHz clock is not a separate
oscillator.

Fix this by making the 13 MHz clock a divide-by-2 fixed factor clock,
taking its input from the main 26 MHz oscillator.

Fixes: 2e78620b1350 ("arm64: dts: Add MediaTek MT8186 dts and evaluation board and Makefile")
Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
---
arch/arm64/boot/dts/mediatek/mt8186.dtsi | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8186.dtsi b/arch/arm64/boot/dts/mediatek/mt8186.dtsi
index 4a2f7ad3c6f0..209f26f12dbc 100644
--- a/arch/arm64/boot/dts/mediatek/mt8186.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8186.dtsi
@@ -215,10 +215,12 @@ l3_0: l3-cache {
};
};

- clk13m: oscillator-13m {
- compatible = "fixed-clock";
+ clk13m: fixed-factor-clock-13m {
+ compatible = "fixed-factor-clock";
#clock-cells = <0>;
- clock-frequency = <13000000>;
+ clocks = <&clk26m>;
+ clock-div = <2>;
+ clock-mult = <1>;
clock-output-names = "clk13m";
};

--
2.38.1.584.g0f3c55d4c2-goog