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mtd: spi-nor: Fix the disabling of write protection at init

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spi_nor_spansion_clear_sr_bp() depends on spansion_quad_enable().
While spansion_quad_enable() is selected as default when
initializing the flash parameters, the nor->quad_enable() method
can be overwritten later on when parsing BFPT.

Select the write protection disable mechanism at spi_nor_init() time,
when the nor->quad_enable() method is already known.

Fixes: 191f5c2ed4 ("mtd: spi-nor: use 16-bit WRR command when QE is set on spansion flashes")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Tudor Ambarus 2019-07-31 08:46:16 +00:00 • committed by Richard Weinberger
parent d45331b00d
commit 834de5c1aa
1 changed files with 3 additions and 2 deletions
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5
drivers/mtd/spi-nor/spi-nor.c
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@ -3780,8 +3780,6 @@ static int spi_nor_init_params(struct spi_nor *nor,
default: default:
/* Kept only for backward compatibility purpose. */ /* Kept only for backward compatibility purpose. */
params->quad_enable = spansion_quad_enable; params->quad_enable = spansion_quad_enable;
if (nor->clear_sr_bp)
nor->clear_sr_bp = spi_nor_spansion_clear_sr_bp;
break; break;
} }
@ -4035,6 +4033,9 @@ static int spi_nor_init(struct spi_nor *nor)
int err; int err;
if (nor->clear_sr_bp) { if (nor->clear_sr_bp) {
if (nor->quad_enable == spansion_quad_enable)
nor->clear_sr_bp = spi_nor_spansion_clear_sr_bp;
err = nor->clear_sr_bp(nor); err = nor->clear_sr_bp(nor);
if (err) { if (err) {
dev_err(nor->dev, dev_err(nor->dev,