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authorTudor Ambarus <tudor.ambarus@linaro.org>2024-01-19 11:11:30 +0000
committerKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>2024-01-23 13:53:19 +0100
commitd97b6c902a40673debee3cb98d79405193890f34 (patch)
tree87fd03a5f04c571439c0bd55dd6508b8ca06a61a /arch/arm64/boot/dts/exynos
parente62c706f3aa0cf1c2b4a71542cb07223e68453c6 (diff)
arm64: dts: exynos: gs101: update USI UART to use peric0 clocks
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>
Diffstat (limited to 'arch/arm64/boot/dts/exynos')
-rw-r--r--arch/arm64/boot/dts/exynos/google/gs101.dtsi14
1 files 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 3b1b6aa1b299..dd2d6eededaa 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi
+++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
@@ -180,14 +180,6 @@
};
};
- /* 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 @@
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 @@
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";