From: Chen-Yu Tsai wenst@chromium.org
[ Upstream commit b391efba57ff085233d5ead5e01817bf4b71d999 ]
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@chromium.org Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Link: https://lore.kernel.org/r/20221201084229.3464449-5-wenst@chromium.org Signed-off-by: Matthias Brugger matthias.bgg@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 64693c17af9ec..fb32e3efcdb12 100644 --- a/arch/arm64/boot/dts/mediatek/mt8186.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8186.dtsi @@ -211,10 +211,12 @@ 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"; };