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mtd: spinand: add spinand_read_cfg() helper

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Put REG_CFG reading code in spinand_read_cfg().
This function will be needed by the future SPI-NAND resume ops.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210602094913.26472-2-patrice.chotard@foss.st.com
This commit is contained in:
Patrice Chotard 2021-06-02 11:49:11 +02:00 committed by Miquel Raynal
parent ae94c49527
commit ff0cd841d2
1 changed files with 20 additions and 9 deletions
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29
drivers/mtd/nand/spi/core.c
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@ -138,20 +138,12 @@ int spinand_select_target(struct spinand_device *spinand, unsigned int target)
return 0;
}
static int spinand_init_cfg_cache(struct spinand_device *spinand)
static int spinand_read_cfg(struct spinand_device *spinand)
{
struct nand_device *nand = spinand_to_nand(spinand);
struct device *dev = &spinand->spimem->spi->dev;
unsigned int target;
int ret;
spinand->cfg_cache = devm_kcalloc(dev,
nand->memorg.ntargets,
sizeof(*spinand->cfg_cache),
GFP_KERNEL);
if (!spinand->cfg_cache)
return -ENOMEM;
for (target = 0; target < nand->memorg.ntargets; target++) {
ret = spinand_select_target(spinand, target);
if (ret)
@ -170,6 +162,21 @@ static int spinand_init_cfg_cache(struct spinand_device *spinand)
return 0;
}
static int spinand_init_cfg_cache(struct spinand_device *spinand)
{
struct nand_device *nand = spinand_to_nand(spinand);
struct device *dev = &spinand->spimem->spi->dev;
spinand->cfg_cache = devm_kcalloc(dev,
nand->memorg.ntargets,
sizeof(*spinand->cfg_cache),
GFP_KERNEL);
if (!spinand->cfg_cache)
return -ENOMEM;
return 0;
}
static int spinand_init_quad_enable(struct spinand_device *spinand)
{
bool enable = false;
@ -1117,6 +1124,10 @@ static int spinand_init(struct spinand_device *spinand)
if (ret)
goto err_free_bufs;
ret = spinand_read_cfg(spinand);
if (ret)
goto err_free_bufs;
ret = spinand_init_quad_enable(spinand);
if (ret)
goto err_free_bufs;