drivers: clock_control_mcux_sim: add support for clkout

Add support for CLKOUT source selection and divider as found on the
NXP Kinetis KE1xF SoC series.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>

drivers/clock_control/clock_control_mcux_sim.c

@@ -45,6 +45,15 @@ static int mcux_sim_get_subsys_rate(struct device *dev,
 
 static int mcux_sim_init(struct device *dev)
 {
+#ifdef DT_SIM_CLKOUT_DIVIDER
+	SIM->CHIPCTL = (SIM->CHIPCTL & ~SIM_CHIPCTL_CLKOUTDIV_MASK)
+		| SIM_CHIPCTL_CLKOUTDIV(DT_SIM_CLKOUT_DIVIDER);
+#endif
+#ifdef DT_SIM_CLKOUT_SOURCE
+	SIM->CHIPCTL = (SIM->CHIPCTL & ~SIM_CHIPCTL_CLKOUTSEL_MASK)
+		| SIM_CHIPCTL_CLKOUTSEL(DT_SIM_CLKOUT_SOURCE);
+#endif
+
 	return 0;
 }
 

dts/bindings/arm/nxp,kinetis-sim.yaml

@@ -30,6 +30,18 @@ properties:
       description: Human readable string describing the device (used by Zephyr for API name)
       generation: define
 
+    clkout-source:
+      type: int
+      category: optional
+      description: clkout clock source
+      generation: define
+
+    clkout-divider:
+      type: int
+      category: optional
+      description: clkout divider
+      generation: define
+
 "#cells":
   - name
   - offset