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drivers: clock_control: sf32lb: add get_rate support #98048

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drivers: clock_control: sf32lb: add get_rate support #98048

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22 changes: 22 additions & 0 deletions drivers/clock_control/clock_control_sf32lb_rcc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@
#include <zephyr/devicetree.h>
#include <zephyr/drivers/clock_control/sf32lb.h>
#include <zephyr/dt-bindings/clock/sf32lb-clocks-common.h>
#include <zephyr/dt-bindings/clock/sf32lb52x-clocks.h>
#include <zephyr/toolchain.h>

#include <register.h>
Expand Down Expand Up @@ -93,6 +94,26 @@ static int clock_control_sf32lb_rcc_off(const struct device *dev, clock_control_
return 0;
}

int clock_control_sf32lb_rcc_get_rate(const struct device *dev, clock_control_subsys_t sys,
uint32_t *rate)
{
uint16_t id = *(uint16_t *)sys;

if ((id == SF32LB52X_CLOCK_I2C1) ||
(id == SF32LB52X_CLOCK_I2C2) ||
(id == SF32LB52X_CLOCK_I2C3) ||
(id == SF32LB52X_CLOCK_I2C4) ||
(id == SF32LB52X_CLOCK_SPI1) ||
(id == SF32LB52X_CLOCK_SPI2) ||
(id == SF32LB52X_CLOCK_USART2) ||
(id == SF32LB52X_CLOCK_USART3)) {
*rate = 48000000U; /* clk_peri_hpsys always 48MHZ */
return 0;
}

return -ENOTSUP;
}

static enum clock_control_status clock_control_sf32lb_rcc_get_status(const struct device *dev,
clock_control_subsys_t sys)
{
Expand All @@ -110,6 +131,7 @@ static enum clock_control_status clock_control_sf32lb_rcc_get_status(const struc
static DEVICE_API(clock_control, clock_control_sf32lb_rcc_api) = {
.on = clock_control_sf32lb_rcc_on,
.off = clock_control_sf32lb_rcc_off,
.get_rate = clock_control_sf32lb_rcc_get_rate,
.get_status = clock_control_sf32lb_rcc_get_status,
};

Expand Down