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arm64: dts: exynos: gs101: update USI UART to use peric0 clocks

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Get rid of the dummy clock and start using the cmu_peric0 clocks
for the usi_uart and serial_0 nodes.

Tested the serial at 115200, 1000000 and 3000000 baudrates,
everthing went fine.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240119111132.1290455-7-tudor.ambarus@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
This commit is contained in:
Tudor Ambarus 2024-01-19 11:11:30 +00:00 committed by Krzysztof Kozlowski
parent e62c706f3a
commit d97b6c902a
1 changed files with 4 additions and 10 deletions
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14
arch/arm64/boot/dts/exynos/google/gs101.dtsi
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@ -180,14 +180,6 @@ HERA_CPU_SLEEP: cpu-hera-sleep {
};
};
/* TODO replace with CCF clock */
dummy_clk: clock-3 {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <12345>;
clock-output-names = "pclk";
};
/* ect node is required to be present by bootloader */
ect {
};
@ -387,7 +379,8 @@ usi_uart: usi@10a000c0 {
ranges;
#address-cells = <1>;
#size-cells = <1>;
clocks = <&dummy_clk>, <&dummy_clk>;
clocks = <&cmu_peric0 CLK_GOUT_PERIC0_CLK_PERIC0_USI0_UART_CLK>,
<&cmu_peric0 CLK_GOUT_PERIC0_PERIC0_TOP1_IPCLK_0>;
clock-names = "pclk", "ipclk";
samsung,sysreg = <&sysreg_peric0 0x1020>;
samsung,mode = <USI_V2_UART>;
@ -398,7 +391,8 @@ serial_0: serial@10a00000 {
reg = <0x10a00000 0xc0>;
interrupts = <GIC_SPI 634
IRQ_TYPE_LEVEL_HIGH 0>;
clocks = <&dummy_clk 0>, <&dummy_clk 0>;
clocks = <&cmu_peric0 CLK_GOUT_PERIC0_CLK_PERIC0_USI0_UART_CLK>,
<&cmu_peric0 CLK_GOUT_PERIC0_PERIC0_TOP1_IPCLK_0>;
clock-names = "uart", "clk_uart_baud0";
samsung,uart-fifosize = <256>;
status = "disabled";