mtd: mtk-nor: adjust sequence of trigger function and assignment function

Move write data register before excute command to avoid
missing first byte write to nor flash

Signed-off-by: Bayi Cheng <bayi.cheng@mediatek.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/drivers/mtd/spi-nor/mtk-quadspi.c b/drivers/mtd/spi-nor/mtk-quadspi.c
index e1dd9fd16fbe0792fcb31935c99176f9882c4b29..d5f850d035bb93fb3a7c6547901ddfe84c3c6f04 100644 (file)
--- a/drivers/mtd/spi-nor/mtk-quadspi.c
+++ b/drivers/mtd/spi-nor/mtk-quadspi.c
@@ -272,10 +272,10 @@ static int mt8173_nor_write_single_byte(struct mt8173_nor *mt8173_nor,
        mt8173_nor_set_addr(mt8173_nor, addr);
 
        for (i = 0; i < length; i++) {
+               writeb(*data++, mt8173_nor->base + MTK_NOR_WDATA_REG);
                ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PIO_WR_CMD);
                if (ret < 0)
                        return ret;
-               writeb(*data++, mt8173_nor->base + MTK_NOR_WDATA_REG);
        }
        return 0;
 }