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drivers: i2s: i2s_ll_stm32: Handle single clock source

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Modify the function "i2s_stm32_set_clock" to handle the case where pclk_len
it is not greater then 1 and to ensure that the freq_in
variable is correctly set in both cases.

Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <marwa.ibenelhadjmessaoud-ext@st.com>
This commit is contained in:
IBEN EL HADJ MESSAOUD Marwa 2024-08-27 17:10:37 +02:00 committed by Anas Nashif
parent 630faa1592
commit 2353b9391b
1 changed files with 9 additions and 0 deletions
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9
drivers/i2s/i2s_ll_stm32.c
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@ -139,12 +139,21 @@ static int i2s_stm32_set_clock(const struct device *dev,
uint8_t i2s_div, i2s_odd;
if (cfg->pclk_len > 1) {
/* Handle multiple clock sources */
if (clock_control_get_rate(DEVICE_DT_GET(STM32_CLOCK_CONTROL_NODE),
(clock_control_subsys_t)&cfg->pclken[1],
&freq_in) < 0) {
LOG_ERR("Failed call clock_control_get_rate(pclken[1])");
return -EIO;
}
} else {
/* Handle single clock source */
if (clock_control_get_rate(DEVICE_DT_GET(STM32_CLOCK_CONTROL_NODE),
(clock_control_subsys_t)&cfg->pclken[0],
&freq_in) < 0) {
LOG_ERR("Failed call clock_control_get_rate(pclken[0])");
return -EIO;
}
}
/*
* The ratio between input clock (I2SxClk) and output