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soc: nxp: MCXW71: Add LPADC node + clocking

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Add DT entry and default clocking for ADC0 on MCXW71.

Signed-off-by: Declan Snyder <declan.snyder@nxp.com>
This commit is contained in:
Declan Snyder 2024-10-14 16:17:10 -05:00 • committed by David Leach
commit 4b3d88e82e
2 changed files with 22 additions and 0 deletions
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16
dts/arm/nxp/nxp_mcxw71.dtsi
View file

@ -318,6 +318,22 @@
status = "disabled";
};
adc0: adc@47000 {
compatible = "nxp,lpc-lpadc";
reg = <0x47000 0x1000>;
interrupts = <71 0>;
clocks = <&scg SCG_K4_FIRC_CLK 0x11c>;
voltage-ref= <1>;
calibration-average = <128>;
/* pwrlvl 0 is slow speed low power, 1 is opposite */
power-level = <0>;
offset-value-a = <0>;
offset-value-b = <0>;
#io-channel-cells = <1>;
nxp,references = <&vref 1800>;
status = "disabled";
};
vref: regulator@4a000 {
compatible = "nxp,vref";
regulator-name = "mcxw71-vref";

6
soc/nxp/mcx/mcxw/soc.c
View file

@ -121,6 +121,8 @@ static ALWAYS_INLINE void clock_init(void)
CLOCK_SetIpSrcDiv(kCLOCK_Lpi2c1, kSCG_SysClkDivBy16);
CLOCK_SetIpSrc(kCLOCK_Lpspi0, kCLOCK_IpSrcFro192M);
CLOCK_SetIpSrc(kCLOCK_Lpspi1, kCLOCK_IpSrcFro192M);
CLOCK_SetIpSrc(kCLOCK_Lpadc0, kCLOCK_IpSrcFro192M);
CLOCK_SetIpSrcDiv(kCLOCK_Lpadc0, kSCG_SysClkDivBy10);
/* Ungate clocks if the peripheral is enabled in devicetree */
if (DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(lpuart0), nxp_lpc_lpuart, okay)) {
@ -162,6 +164,10 @@ static ALWAYS_INLINE void clock_init(void)
if (DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(vref), nxp_vref, okay)) {
CLOCK_EnableClock(kCLOCK_Vref0);
}
if (DT_NODE_HAS_COMPAT_STATUS(adc0, nxp_lpadc, okay)) {
CLOCK_EnableClock(kCLOCK_Lpadc0);
}
}
static void vbat_init(void)