[PATCH 3/4] spi: mediatek: remove needless pair of writel()/readl()

Leilk Liu leilk.liu at mediatek.com
Thu Nov 19 18:21:18 PST 2015


It's not need to re-read and re-write SPI_CMD_REG, so remove it.

Signed-off-by: Leilk Liu <leilk.liu at mediatek.com>
---
 drivers/spi/spi-mt65xx.c |    3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 7840067..6c1a96e 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -154,9 +154,6 @@ static int mtk_spi_prepare_message(struct spi_master *master,
 		reg_val |= SPI_CMD_CPOL;
 	else
 		reg_val &= ~SPI_CMD_CPOL;
-	writel(reg_val, mdata->base + SPI_CMD_REG);
-
-	reg_val = readl(mdata->base + SPI_CMD_REG);
 
 	/* set the mlsbx and mlsbtx */
 	if (chip_config->tx_mlsb)
-- 
1.7.9.5




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