soc: nxp lpc55xxxx: Enable clock on all used Flexcomm ports

Previously the clock was not attached to all Flexcomm ports. Some ports
were configured with FRO_12M, others with FRO_HF, some not at all.

Now every Flexcomm port in I2C, SPI or USART mode uses the FRO_HF clock,
if it is enabled in the device tree, to cover all use cases.

Signed-off-by: Fabian Otto <[email protected]>

Author: fbnors

soc/nxp/lpc/lpc55xxx/soc.c

@@ -176,45 +176,63 @@ __weak void clock_init(void)
 	/* Enables the clock for the I/O controller.: Enable Clock. */
 	CLOCK_EnableClock(kCLOCK_Iocon);
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm2), nxp_lpc_usart, okay)
+#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm0), nxp_lpc_i2c, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm0), nxp_lpc_spi, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm0), nxp_lpc_usart, okay)
+	CLOCK_AttachClk(kFRO_HF_DIV_to_FLEXCOMM0);
+#endif
+
+#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm1), nxp_lpc_i2c, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm1), nxp_lpc_spi, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm1), nxp_lpc_usart, okay)
+	CLOCK_AttachClk(kFRO_HF_DIV_to_FLEXCOMM1);
+#endif
+
+#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm2), nxp_lpc_i2c, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm2), nxp_lpc_spi, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm2), nxp_lpc_usart, okay)
 #if defined(CONFIG_SOC_LPC55S36)
 	CLOCK_SetClkDiv(kCLOCK_DivFlexcom2Clk, 0U, true);
 	CLOCK_SetClkDiv(kCLOCK_DivFlexcom2Clk, 1U, false);
 #endif
-	CLOCK_AttachClk(kFRO12M_to_FLEXCOMM2);
+	CLOCK_AttachClk(kFRO_HF_DIV_to_FLEXCOMM2);
 #endif
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm3), nxp_lpc_usart, okay)
+#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm3), nxp_lpc_i2c, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm3), nxp_lpc_spi, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm3), nxp_lpc_usart, okay)
 	CLOCK_AttachClk(kFRO_HF_DIV_to_FLEXCOMM3);
 #endif
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm4), nxp_lpc_i2c, okay)
+#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm4), nxp_lpc_i2c, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm4), nxp_lpc_spi, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm4), nxp_lpc_usart, okay)
 #if defined(CONFIG_SOC_LPC55S36)
 	CLOCK_SetClkDiv(kCLOCK_DivFlexcom4Clk, 0U, true);
 	CLOCK_SetClkDiv(kCLOCK_DivFlexcom4Clk, 1U, false);
 #endif
-	/* attach 12 MHz clock to FLEXCOMM4 */
-	CLOCK_AttachClk(kFRO12M_to_FLEXCOMM4);
-#endif
-
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm4), nxp_lpc_usart, okay)
 	CLOCK_AttachClk(kFRO_HF_DIV_to_FLEXCOMM4);
 #endif
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm5), nxp_lpc_usart, okay)
+#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm5), nxp_lpc_i2c, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm5), nxp_lpc_spi, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm5), nxp_lpc_usart, okay)
 	CLOCK_AttachClk(kFRO_HF_DIV_to_FLEXCOMM5);
 #endif
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm6), nxp_lpc_usart, okay)
+#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm6), nxp_lpc_i2c, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm6), nxp_lpc_spi, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm6), nxp_lpc_usart, okay)
 	CLOCK_AttachClk(kFRO_HF_DIV_to_FLEXCOMM6);
 #endif
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm7), nxp_lpc_usart, okay)
+#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm7), nxp_lpc_i2c, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm7), nxp_lpc_spi, okay) || \
+	DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(flexcomm7), nxp_lpc_usart, okay)
 	CLOCK_AttachClk(kFRO_HF_DIV_to_FLEXCOMM7);
 #endif
 
 #if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(hs_lspi))
-	/* Attach 12 MHz clock to HSLSPI */
 	CLOCK_AttachClk(kFRO_HF_DIV_to_HSLSPI);
 #endif