mtd: spi-nor: cadence-quadspi: Drop redundant WREN in erase path

Drop redundant WREN command in cqspi_erase() as SPI NOR core takes care
of sending WREN command before sending erase command.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20200601070444.16923-7-vigneshr@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/mtd/spi-nor/controllers/cadence-quadspi.c b/drivers/mtd/spi-nor/controllers/cadence-quadspi.c
index 0570ebca135a9212a317fc37beba98a16fed3ba4..6b1cbad25e3f60ce5aab5d316053543e9fa3c9ae 100644 (file)
--- a/drivers/mtd/spi-nor/controllers/cadence-quadspi.c
+++ b/drivers/mtd/spi-nor/controllers/cadence-quadspi.c
@@ -1016,11 +1016,6 @@ static int cqspi_erase(struct spi_nor *nor, loff_t offs)
        if (ret)
                return ret;
 
-       /* Send write enable, then erase commands. */
-       ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WREN, NULL, 0);
-       if (ret)
-               return ret;
-
        /* Set up command buffer. */
        ret = cqspi_command_write_addr(nor, nor->erase_opcode, offs);
        if (ret)