clock: mcux_ccm: add flexio clock

Adds flexio1 and flexio2 clock definitions to get the clock rate

Signed-off-by: Peter van der Perk <[email protected]>

Author: PetervdPerk-NXP

drivers/clock_control/clock_control_mcux_ccm_rev2.c

@@ -178,6 +178,15 @@ static int mcux_ccm_get_subsys_rate(const struct device *dev,
 		break;
 #endif
 
+#ifdef CONFIG_MCUX_FLEXIO
+	case IMX_CCM_FLEXIO1_CLK:
+		clock_root = kCLOCK_Root_Flexio1;
+		break;
+	case IMX_CCM_FLEXIO2_CLK:
+		clock_root = kCLOCK_Root_Flexio2;
+		break;
+#endif
+
 #ifdef CONFIG_PWM_MCUX_QTMR
 	case IMX_CCM_QTMR1_CLK:
 	case IMX_CCM_QTMR2_CLK:

include/zephyr/dt-bindings/clock/imx_ccm_rev2.h

@@ -126,6 +126,11 @@
 #define IMX_CCM_TPM5_CLK               0x1604UL
 #define IMX_CCM_TPM6_CLK               0x1605UL
 
+/* FLEXIO */
+#define IMX_CCM_FLEXIO_CLK             0x1700UL
+#define IMX_CCM_FLEXIO1_CLK            0x1700UL
+#define IMX_CCM_FLEXIO2_CLK            0x1701UL
+
 /* QTMR */
 #define IMX_CCM_QTMR_CLK               0x6000UL
 #define IMX_CCM_QTMR1_CLK              0x6000UL