[PATCH v3 10/12] arm64: dts: exynos: gs101: update USI UART to use peric0 clocks
From: Tudor Ambarus <tudor.ambarus@linaro.org>
Date: 2024-01-09 12:58:44
Also in:
linux-clk, linux-devicetree, linux-i2c, linux-samsung-soc, linux-serial, lkml
Subsystem:
arm/samsung s3c, s5p and exynos arm architectures, google tensor soc support, the rest · Maintainers:
Krzysztof Kozlowski, Peter Griffin, Linus Torvalds
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> --- v3: no change v2: identify and use gate clocks instead of divider clocks 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 2d1344a202a9..6aa25cc4676e 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 { };
@@ -367,7 +359,8 @@ 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>;
@@ -378,7 +371,8 @@ 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";
--
2.43.0.472.g3155946c3a-goog
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