[PATCH 09/13] arm64: dts: exynos: gs101: update USI UART to use peric0 clocks

Tudor Ambarus
2023-12-14T10:53:01Z

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.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
---
arch/arm64/boot/dts/exynos/google/gs101.dtsi | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
index d0b0ad70c6ba..ffb7b4d89a8c 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi
+++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
@@ -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 {
};
@@ -369,7 +361,8 @@ 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_DOUT_PERIC0_USI0_UART>;
clock-names = "pclk", "ipclk";
samsung,sysreg = <&sysreg_peric0 0x1020>;
samsung,mode = <USI_V2_UART>;
@@ -381,7 +374,8 @@ serial_0: serial@10a00000 {
reg-io-width = <4>;
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_DOUT_PERIC0_USI0_UART>;
clock-names = "uart", "clk_uart_baud0";
samsung,uart-fifosize = <256>;
status = "disabled";
--
2.43.0.472.g3155946c3a-goog