spi: uniphier: Use FIELD_MODIFY()

Use FIELD_MODIFY() to remove open-coded bit manipulation.
No functional change intended.

Signed-off-by: Hans Zhang <18255117159@163.com>
Link: https://patch.msgid.link/20260430155456.36998-11-18255117159@163.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 5 insertions, 8 deletions

diff --git a/drivers/spi/spi-uniphier.c b/drivers/spi/spi-uniphier.c
index eac6c3e8908b..846f65ba9495 100644
--- a/drivers/spi/spi-uniphier.c
+++ b/drivers/spi/spi-uniphier.c
@@ -184,14 +184,12 @@ static void uniphier_spi_set_transfer_size(struct spi_device *spi, int size)
 	u32 val;
 
 	val = readl(priv->base + SSI_TXWDS);
-	val &= ~(SSI_TXWDS_WDLEN_MASK | SSI_TXWDS_DTLEN_MASK);
-	val |= FIELD_PREP(SSI_TXWDS_WDLEN_MASK, size);
-	val |= FIELD_PREP(SSI_TXWDS_DTLEN_MASK, size);
+	FIELD_MODIFY(SSI_TXWDS_WDLEN_MASK, &val, size);
+	FIELD_MODIFY(SSI_TXWDS_DTLEN_MASK, &val, size);
 	writel(val, priv->base + SSI_TXWDS);
 
 	val = readl(priv->base + SSI_RXWDS);
-	val &= ~SSI_RXWDS_DTLEN_MASK;
-	val |= FIELD_PREP(SSI_RXWDS_DTLEN_MASK, size);
+	FIELD_MODIFY(SSI_RXWDS_DTLEN_MASK, &val, size);
 	writel(val, priv->base + SSI_RXWDS);
 }
 
@@ -308,9 +306,8 @@ static void uniphier_spi_set_fifo_threshold(struct uniphier_spi_priv *priv,
 	u32 val;
 
 	val = readl(priv->base + SSI_FC);
-	val &= ~(SSI_FC_TXFTH_MASK | SSI_FC_RXFTH_MASK);
-	val |= FIELD_PREP(SSI_FC_TXFTH_MASK, SSI_FIFO_DEPTH - threshold);
-	val |= FIELD_PREP(SSI_FC_RXFTH_MASK, threshold);
+	FIELD_MODIFY(SSI_FC_TXFTH_MASK, &val, SSI_FIFO_DEPTH - threshold);
+	FIELD_MODIFY(SSI_FC_RXFTH_MASK, &val, threshold);
 	writel(val, priv->base + SSI_FC);
 }