boards: nxp: frdm_mcxa153: Support lpcmp for NXP frdm_mcxa153 board

Support lpcmp for NXP frdm_mcxa153 board.

Signed-off-by: Neil Chen <[email protected]>

Author: NeilChen93

boards/nxp/frdm_mcxa153/board.c

@@ -97,6 +97,12 @@ void board_early_init_hook(void)
 	CLOCK_EnableClock(kCLOCK_GateADC0);
 #endif
 
+#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(lpcmp0))
+	CLOCK_AttachClk(kFRO12M_to_CMP0);
+	CLOCK_SetClockDiv(kCLOCK_DivCMP0_FUNC, 1U);
+	SPC_EnableActiveModeAnalogModules(SPC0, (kSPC_controlCmp0 | kSPC_controlCmp0Dac));
+#endif
+
 #if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(lpuart0))
 	CLOCK_SetClockDiv(kCLOCK_DivLPUART0, 1u);
 	CLOCK_AttachClk(kFRO12M_to_LPUART0);

boards/nxp/frdm_mcxa153/frdm_mcxa153-pinctrl.dtsi

@@ -25,6 +25,15 @@
 		};
 	};
 
+	pinmux_lpcmp0: pinmux_lpcmp0 {
+		group0 {
+			pinmux = <CMP0_IN0_P2_2>;
+			drive-strength = "low";
+			slew-rate = "fast";
+			bias-pull-up;
+		};
+	};
+
 	pinmux_lpuart0: pinmux_lpuart0 {
 		group0 {
 			pinmux = <LPUART0_RXD_P0_2>,

boards/nxp/frdm_mcxa153/frdm_mcxa153.dts

@@ -122,6 +122,12 @@
 	pinctrl-names = "default";
 };
 
+&lpcmp0 {
+	status = "okay";
+	pinctrl-0 = <&pinmux_lpcmp0>;
+	pinctrl-names = "default";
+};
+
 &lpuart0 {
 	status = "okay";
 	current-speed = <115200>;