drivers: clock_control: support rt700 getting sai clock

There are multi sai instance shared on clock source on
cm33_cpu0, clock driver don't need index parameter, so
modify clock driver to adapt clock driver.

Signed-off-by: Lucien Zhao <[email protected]>

Author: lucien-nxp

drivers/clock_control/clock_control_mcux_syscon.c

@@ -428,6 +428,13 @@ static int mcux_lpc_syscon_clock_control_get_subsys_rate(const struct device *de
 #endif /* CONFIG_MEMC_MCUX_FLEXSPI */
 
 #if defined(CONFIG_I2S_MCUX_SAI)
+#if defined(CONFIG_SOC_SERIES_IMXRT7XX)
+	case MCUX_SAI0_CLK:
+	case MCUX_SAI1_CLK:
+	case MCUX_SAI2_CLK:
+		*rate = CLOCK_GetSaiClkFreq();
+		break;
+#else
 	case MCUX_SAI0_CLK:
 #if (FSL_FEATURE_SOC_I2S_COUNT == 1)
 		*rate = CLOCK_GetSaiClkFreq();
@@ -440,6 +447,7 @@ static int mcux_lpc_syscon_clock_control_get_subsys_rate(const struct device *de
 		*rate = CLOCK_GetSaiClkFreq(1);
 		break;
 #endif
+#endif /* CONFIG_SOC_SERIES_IMXRT7XX */
 #endif /* CONFIG_I2S_MCUX_SAI */
 
 #ifdef CONFIG_ETH_NXP_ENET_QOS

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

@@ -124,6 +124,7 @@
 
 #define MCUX_SAI0_CLK MCUX_LPC_CLK_ID(0x16, 0x00)
 #define MCUX_SAI1_CLK MCUX_LPC_CLK_ID(0x16, 0x01)
+#define MCUX_SAI2_CLK MCUX_LPC_CLK_ID(0x16, 0x02)
 
 #define MCUX_LPSPI0_CLK MCUX_LPC_CLK_ID(0x17, 0x00)
 #define MCUX_LPSPI1_CLK MCUX_LPC_CLK_ID(0x17, 0x01)