spi_master: add feature spi periph clk source selectable

components/soc/esp32c6/include/soc/Kconfig.soc_caps.in

@@ -735,6 +735,18 @@ config SOC_SPI_SUPPORT_SLAVE_HD_VER2
     bool
     default y
 
+config SOC_SPI_SUPPORT_CLK_XTAL
+    bool
+    default y
+
+config SOC_SPI_SUPPORT_CLK_PLL_F80M
+    bool
+    default y
+
+config SOC_SPI_SUPPORT_CLK_RC_FAST
+    bool
+    default y
+
 config SOC_MEMSPI_IS_INDEPENDENT
     bool
     default y

components/soc/esp32c6/include/soc/clk_tree_defs.h

@@ -286,7 +286,25 @@ typedef enum {
     I2C_CLK_SRC_DEFAULT = SOC_MOD_CLK_XTAL,
 } soc_periph_i2c_clk_src_t;
 
-//////////////////////////////////////////////////SDM///////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////SPI////////////////////////////////////////////////////////////////////
+
+/**
+ * @brief Array initializer for all supported clock sources of SPI
+ */
+#define SOC_SPI_CLKS {SOC_MOD_CLK_PLL_F80M, SOC_MOD_CLK_XTAL, SOC_MOD_CLK_RC_FAST}
+
+/**
+ * @brief Type of SPI clock source.
+ */
+typedef enum {
+    SPI_CLK_SRC_DEFAULT = SOC_MOD_CLK_PLL_F80M,     /*!< Select PLL_80M as SPI source clock */
+    SPI_CLK_SRC_PLL_F80M = SOC_MOD_CLK_PLL_F80M,    /*!< Select PLL_80M as SPI source clock */
+    SPI_CLK_SRC_XTAL = SOC_MOD_CLK_XTAL,            /*!< Select XTAL as SPI source clock */
+    SPI_CLK_SRC_RC_FAST = SOC_MOD_CLK_RC_FAST,      /*!< Select RC_FAST as SPI source clock */
+} soc_periph_spi_clk_src_t;
+
+//////////////////////////////////////////////////SDM//////////////////////////////////////////////////////////////
 
 /**
  * @brief Array initializer for all supported clock sources of SDM

components/soc/esp32c6/include/soc/soc_caps.h

@@ -333,6 +333,9 @@
 #define SOC_SPI_SUPPORT_CD_SIG              1
 #define SOC_SPI_SUPPORT_CONTINUOUS_TRANS    1
 #define SOC_SPI_SUPPORT_SLAVE_HD_VER2       1
+#define SOC_SPI_SUPPORT_CLK_XTAL            1
+#define SOC_SPI_SUPPORT_CLK_PLL_F80M        1
+#define SOC_SPI_SUPPORT_CLK_RC_FAST         1
 
 // Peripheral supports DIO, DOUT, QIO, or QOUT
 // host_id = 0 -> SPI0/SPI1, host_id = 1 -> SPI2,