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drivers: spi: cc13xx_cc26xx: Allow clocks below 2 MHz #87400

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Merged
merged 1 commit into from
Mar 24, 2025
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drivers: spi: cc13xx_cc26xx: Allow clocks below 2 MHz #87400

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5 changes: 3 additions & 2 deletions drivers/spi/spi_cc13xx_cc26xx.c
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Original file line number Diff line number Diff line change
Expand Up @@ -81,8 +81,9 @@ static int spi_cc13xx_cc26xx_configure(const struct device *dev,
return -EINVAL;
}

if (config->frequency < 2000000) {
LOG_ERR("Frequencies lower than 2 MHz are not supported");
if (config->frequency < CPU_FREQ / (254 * (255 + 1))) {
LOG_ERR("Frequencies lower than %d Hz are not supported",
CPU_FREQ / (254 * (255 + 1)));
return -EINVAL;
}

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