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drivers: clock_control: stm32: hide STM32_HSE_CLOCK when HSE is off #97256

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drivers: clock_control: stm32: hide STM32_HSE_CLOCK when HSE is off #97256

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af11a8f
drivers: clock_control: stm32: hide STM32_HSE_CLOCK if enabled in DT
mathieuchopstm Oct 8, 2025
6ee26e7
boards: oct: osd32mp1_brk: configure HSE clock using configuration file
mathieuchopstm Oct 10, 2025
1718bf5
boards: st/stm32mp157c_dk2: configure HSE clock using configuration file
mathieuchopstm Oct 10, 2025
fc6f26e
dummy: temporary commit until 97215 merge
mathieuchopstm Oct 10, 2025
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3 changes: 0 additions & 3 deletions boards/oct/osd32mp1_brk/Kconfig.defconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,4 @@ config SPI_STM32_INTERRUPT
default y
depends on SPI

config CLOCK_STM32_HSE_CLOCK
default 24000000

endif # BOARD_OSD32MP1_BRK
4 changes: 4 additions & 0 deletions boards/oct/osd32mp1_brk/osd32mp1_brk_defconfig
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Original file line number Diff line number Diff line change
@@ -1,3 +1,7 @@
# HSE is controlled by Cortex-A but its
# frequency must be provided to the HAL
CONFIG_CLOCK_STM32_HSE_CLOCK=24000000

# Enable GPIO
CONFIG_GPIO=y

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5 changes: 1 addition & 4 deletions boards/st/stm32mp157c_dk2/Kconfig.defconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,4 @@ config SPI_STM32_INTERRUPT
default y
depends on SPI

config CLOCK_STM32_HSE_CLOCK
default 24000000

endif # BOARD_STM32MP157_Dk2
endif # BOARD_STM32MP157_DK2
4 changes: 4 additions & 0 deletions boards/st/stm32mp157c_dk2/stm32mp157c_dk2_defconfig
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Original file line number Diff line number Diff line change
@@ -1,3 +1,7 @@
# HSE is controlled by Cortex-A but its
# frequency must be provided to the HAL
CONFIG_CLOCK_STM32_HSE_CLOCK=24000000

# enable GPIO
CONFIG_GPIO=y

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36 changes: 22 additions & 14 deletions drivers/clock_control/Kconfig.stm32
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Expand Up @@ -22,23 +22,31 @@ menuconfig CLOCK_CONTROL_STM32_CUBE

if CLOCK_CONTROL_STM32_CUBE

DT_STM32_HSE_CLOCK := $(dt_nodelabel_path,clk_hse)
DT_STM32_HSE_CLOCK_FREQ := $(dt_node_int_prop_int,$(DT_STM32_HSE_CLOCK),clock-frequency)
TMP_HSE := $(dt_nodelabel_path, clk_hse)

config CLOCK_STM32_HSE_CLOCK
int "HSE clock value"
default "$(DT_STM32_HSE_CLOCK_FREQ)" if "$(dt_nodelabel_enabled,clk_hse)"
default 8000000
int "HSE clock value" if !$(dt_nodelabel_enabled,clk_hse)
####### default $(dt_nodelabel_int_prop,clk_hse,clock-frequency)
default $(dt_node_int_prop_int,$(TMP_HSE),clock-frequency)
help
Value of external high-speed clock (HSE). This symbol could be optionally
configured using device tree by setting "clock-frequency" value of clk_hse
node. For instance:
&clk_hse{
status = "okay";
clock-frequency = <DT_FREQ_M(25)>;
};
Note: Device tree configuration is overridden when current symbol is set:
CONFIG_CLOCK_STM32_HSE_CLOCK=32000000
Frequency of external high-speed clock (HSE).

The value of this symbol is used to set the preprocessor
definition "HSE_VALUE" notably consumed by the HAL.

Usually, this symbol's value is directly taken from the
"clock-frequency" property of the "clk_hse" Device Tree
node, which usually looks similar to:

&clk_hse {
clock-frequency = <DT_FREQ_M(25)>;
status = "okay";
};

If the "clk_hse" node does not exist or is not enabled
(status != "okay"), this symbol becomes visible and can
be assigned a value through Kconfig configuration files.
This mechanism is used on specific STM32 platforms.

config CLOCK_STM32_MUX
bool "STM32 clock mux driver"
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