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| author | Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-08-23 15:53:39 +0000 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-08-28 12:40:26 +0300 |
| commit | 42f5994724bcbcdbeb743dcc3e2756ec582cb86b (patch) | |
| tree | 77172f2a3206acdbf867721475cf6181002a519f /drivers/mtd | |
| parent | 1e35a56781b4b5d83f428c2c40a1b6fa5bca8cd1 (diff) | |
| download | linux-stable-42f5994724bcbcdbeb743dcc3e2756ec582cb86b.tar.gz linux-stable-42f5994724bcbcdbeb743dcc3e2756ec582cb86b.tar.bz2 linux-stable-42f5994724bcbcdbeb743dcc3e2756ec582cb86b.zip | |
mtd: spi-nor: Drop quad_enable() from 'struct spi-nor'
All flash parameters and settings should reside inside
'struct spi_nor_flash_parameter'. Drop the local copy of
quad_enable() and use the one from 'struct spi_nor_flash_parameter'.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi-nor/spi-nor.c | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index e9b9cd70a999..effda372cb33 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -4403,7 +4403,6 @@ static int spi_nor_setup(struct spi_nor *nor, { struct spi_nor_flash_parameter *params = &nor->params; u32 ignored_mask, shared_mask; - bool enable_quad_io; int err; /* @@ -4457,23 +4456,33 @@ static int spi_nor_setup(struct spi_nor *nor, return err; } - /* Enable Quad I/O if needed. */ - enable_quad_io = (spi_nor_get_protocol_width(nor->read_proto) == 4 || - spi_nor_get_protocol_width(nor->write_proto) == 4); - if (enable_quad_io && params->quad_enable) - nor->quad_enable = params->quad_enable; - else - nor->quad_enable = NULL; - return 0; } +/** + * spi_nor_quad_enable() - enable Quad I/O if needed. + * @nor: pointer to a 'struct spi_nor' + * + * Return: 0 on success, -errno otherwise. + */ +static int spi_nor_quad_enable(struct spi_nor *nor) +{ + if (!nor->params.quad_enable) + return 0; + + if (!(spi_nor_get_protocol_width(nor->read_proto) == 4 || + spi_nor_get_protocol_width(nor->write_proto) == 4)) + return 0; + + return nor->params.quad_enable(nor); +} + static int spi_nor_init(struct spi_nor *nor) { int err; if (nor->clear_sr_bp) { - if (nor->quad_enable == spansion_quad_enable) + if (nor->params.quad_enable == spansion_quad_enable) nor->clear_sr_bp = spi_nor_spansion_clear_sr_bp; err = nor->clear_sr_bp(nor); @@ -4484,12 +4493,10 @@ static int spi_nor_init(struct spi_nor *nor) } } - if (nor->quad_enable) { - err = nor->quad_enable(nor); - if (err) { - dev_err(nor->dev, "quad mode not supported\n"); - return err; - } + err = spi_nor_quad_enable(nor); + if (err) { + dev_err(nor->dev, "quad mode not supported\n"); + return err; } if (nor->addr_width == 4 && !(nor->flags & SNOR_F_4B_OPCODES)) { @@ -4706,7 +4713,6 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, * - select op codes for (Fast) Read, Page Program and Sector Erase. * - set the number of dummy cycles (mode cycles + wait states). * - set the SPI protocols for register and memory accesses. - * - set the Quad Enable bit if needed (required by SPI x-y-4 protos). */ ret = spi_nor_setup(nor, hwcaps); if (ret) |