drivers: spi: siwx91x: spi driver fix

smalae · henrikbrixandersen · commit 4bf1c9e8f566 · 2025-06-17T16:11:11.000+02:00
Validate word size to only allow 8-bit and 16-bit.

Signed-off-by: Sai Santhosh Malae &lt;Santhosh.Malae@silabs.com&gt;
diff --git a/drivers/spi/spi_silabs_siwx91x_gspi.c b/drivers/spi/spi_silabs_siwx91x_gspi.c
@@ -90,7 +90,8 @@ static int gspi_siwx91x_config(const struct device *dev, const struct spi_config
 		return -ENOTSUP;
 	}
 
-	if (SPI_WORD_SIZE_GET(spi_cfg->operation) > 16) {
+	if (SPI_WORD_SIZE_GET(spi_cfg->operation) != 8 &&
+	    SPI_WORD_SIZE_GET(spi_cfg->operation) != 16) {
 		LOG_ERR("Word size incorrect %d!", SPI_WORD_SIZE_GET(spi_cfg->operation));
 		return -ENOTSUP;
 	}

Original file line number	Diff line number	Diff line change
`@@ -90,7 +90,8 @@ static int gspi_siwx91x_config(const struct device *dev, const struct spi_config`
`90`	`90`	`return -ENOTSUP;`
`91`	`91`	`}`
`92`	`92`
`93`		`- if (SPI_WORD_SIZE_GET(spi_cfg->operation) > 16) {`
	`93`	`+ if (SPI_WORD_SIZE_GET(spi_cfg->operation) != 8 &&`
	`94`	`+ SPI_WORD_SIZE_GET(spi_cfg->operation) != 16) {`
`94`	`95`	`LOG_ERR("Word size incorrect %d!", SPI_WORD_SIZE_GET(spi_cfg->operation));`
`95`	`96`	`return -ENOTSUP;`
`96`	`97`	`}`