tests: drivers: stm32 clock control testing on stm32l4 / l5 mcus

target is stm32l4x/l5x with clearing clock config
target is stm32l4x/l5x with pll 64MHz from hsi clock config
target is stm32l4x/l5x with pll 48MHz from msi clock config
target is stm32l4x/l5x with pll 64MHz from hse clock config (with bypass)
target is stm32l4x/l5x with hse, hsi, msi clock config (no pll)

Signed-off-by: Francois Ramu <francois.ramu@st.com>

tests/drivers/clock_control/stm32_clock_configuration/stm32_common/boards/clear_clocks_msi.overlay

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2022 STMicroelectronics
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * Warning: This overlay clears the msi clock back to a state equivalent to what could
+ * be found in stm32xx.dtsi
+ */
+
+&clk_msi {
+	status = "disabled";
+	/delete-property/ msi-range;
+};

tests/drivers/clock_control/stm32_clock_configuration/stm32_common/boards/pll_48_msi_4.overlay

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2022 STMicroelectronics
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * Warning: This overlay performs configuration from clean sheet.
+ * It is assumed that it is applied after wb_clear_clocks.overlay file.
+ * It applies to the stm32xx where the msi is 4MHz
+ */
+
+&clk_msi {
+	status = "okay";
+	msi-range = <6>; /* default value */
+};
+
+&pll {
+	div-m = <1>;
+	mul-n = <24>;
+	div-q = <2>;
+	div-r = <2>;
+	clocks = <&clk_msi>;
+	status = "okay";
+};
+
+&rcc {
+	clocks = <&pll>;
+	clock-frequency = <DT_FREQ_M(48)>;
+};

tests/drivers/clock_control/stm32_clock_configuration/stm32_common/boards/pll_64_hse_8.overlay

@@ -18,7 +18,6 @@
 &pll {
 	div-m = <1>;
 	mul-n = <16>;
-	div-p = <2>;
 	div-q = <2>;
 	div-r = <2>;
 	clocks = <&clk_hse>;

tests/drivers/clock_control/stm32_clock_configuration/stm32_common/boards/pll_64_hsi_16.overlay

@@ -16,7 +16,6 @@
 &pll {
 	div-m = <1>;
 	mul-n = <8>;
-	div-p = <2>;
 	div-q = <2>;
 	div-r = <2>;
 	clocks = <&clk_hsi>;

tests/drivers/clock_control/stm32_clock_configuration/stm32_common/testcase.yaml

@@ -6,18 +6,34 @@ tests:
     platform_allow: nucleo_g071rb
     harness_config:
       fixture: mco_sb_closed
+  drivers.stm32_clock_configuration.common.sysclksrc_msi_pll_64_hse_8:
+    extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/clear_clocks_msi.overlay;boards/pll_64_hse_8.overlay"
+    platform_allow: nucleo_l496zg nucleo_l476rg nucleo_l452re nucleo_l432kc nucleo_l4r5zi nucleo_l552ze_q
+    harness_config:
+      fixture: mco_sb_closed
   drivers.stm32_clock_configuration.common.sysclksrc_pll_64_hsi_16:
     extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/pll_64_hsi_16.overlay"
     platform_allow: nucleo_g071rb nucleo_g474re
+  drivers.stm32_clock_configuration.common.sysclksrc_msi_pll_64_hsi_16:
+    extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;;boards/clear_clocks_msi.overlay;boards/pll_64_hsi_16.overlay"
+    platform_allow: nucleo_l496zg nucleo_l476rg nucleo_l452re nucleo_l432kc nucleo_l4r5zi nucleo_l552ze_q
   drivers.stm32_clock_configuration.common.sysclksrc_hsi_16:
     extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/hsi_16.overlay"
     platform_allow: nucleo_g071rb nucleo_l152re nucleo_l073rz nucleo_wl55jc
+  drivers.stm32_clock_configuration.common.sysclksrc_msi_hsi_16:
+    extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/clear_clocks_msi.overlay;boards/hsi_16.overlay"
+    platform_allow: nucleo_l496zg nucleo_l476rg nucleo_l452re nucleo_l432kc nucleo_l4r5zi nucleo_l552ze_q
   drivers.stm32_clock_configuration.common.sysclksrc_hse_24:
     extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/hse_24.overlay"
     platform_allow: nucleo_g474re
   drivers.stm32_clock_configuration.common.sysclksrc_hse_8:
     extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/hse_8.overlay"
     platform_allow: nucleo_l152re nucleo_l073rz
+  drivers.stm32_clock_configuration.common.sysclksrc_msi_hse_8:
+    extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/clear_clocks_msi.overlay;boards/hse_8.overlay"
+    platform_allow: nucleo_l496zg nucleo_l476rg nucleo_l452re nucleo_l432kc nucleo_l4r5zi nucleo_l552ze_q
+    harness_config:
+      fixture: mco_sb_closed
   drivers.stm32_clock_configuration.common.sysclksrc_pll_170_hse_24:
     extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/hsi_16.overlay"
     platform_allow: nucleo_g474re
@@ -36,12 +52,15 @@ tests:
   drivers.stm32_clock_configuration.common.sysclksrc_pll_48_hse_32:
     extra_args: DTC_OVERLAY_FILE="boards/wl_clear_clocks.overlay;boards/wl_pll_48_hse_32.overlay"
     platform_allow: nucleo_wl55jc
-  drivers.stm32_clock_configuration.common.sysclksrc_32_hse:
+  drivers.stm32_clock_configuration.common.sysclksrc_wl_32_hse:
     extra_args: DTC_OVERLAY_FILE="boards/wl_clear_clocks.overlay;boards/wl_32_hse.overlay"
     platform_allow: nucleo_wl55jc
-  drivers.stm32_clock_configuration.common.sysclksrc_48_msi:
+  drivers.stm32_clock_configuration.common.sysclksrc_wl_48_msi:
     extra_args: DTC_OVERLAY_FILE="boards/wl_clear_clocks.overlay;boards/msi_range11.overlay"
     platform_allow: nucleo_wl55jc
+  drivers.stm32_clock_configuration.common.sysclksrc_48_msi:
+    extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/clear_clocks_msi.overlay;boards/msi_range11.overlay"
+    platform_allow: nucleo_l496zg nucleo_l476rg nucleo_l452re nucleo_l432kc nucleo_l4r5zi nucleo_l552ze_q
   drivers.stm32_clock_configuration.common.sysclksrc_wb_48_msi:
     extra_args: DTC_OVERLAY_FILE="boards/wb_clear_clocks.overlay;boards/msi_range11.overlay"
     platform_allow: nucleo_wb55rg
@@ -60,3 +79,6 @@ tests:
   drivers.stm32_clock_configuration.common.sysclksrc_wb_pll_48_msi_4:
     extra_args: DTC_OVERLAY_FILE="boards/wb_clear_clocks.overlay;boards/wb_pll_48_msi_4.overlay"
     platform_allow: nucleo_wb55rg
+  drivers.stm32_clock_configuration.common.sysclksrc_msi_pll_48_msi_4:
+    extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/clear_clocks_msi.overlay;boards/pll_48_msi_4.overlay"
+    platform_allow: nucleo_l496zg nucleo_l476rg nucleo_l452re nucleo_l432kc nucleo_l4r5zi nucleo_l552ze_q