@@ -301,6 +301,12 @@ static ssize_t spi_nor_spimem_write_data(struct spi_nor *nor, loff_t to,
ssize_t spi_nor_write_data(struct spi_nor *nor, loff_t to, size_t len,
const u8 *buf)
{
+ int ret;
+
+ ret = spi_nor_write_enable(nor);
+ if (ret)
+ return ret;
+
if (nor->spimem)
return spi_nor_spimem_write_data(nor, to, len, buf);
@@ -1074,6 +1080,10 @@ static int spi_nor_erase_chip(struct spi_nor *nor)
dev_dbg(nor->dev, " %lldKiB\n", (long long)(nor->mtd.size >> 10));
+ ret = spi_nor_write_enable(nor);
+ if (ret)
+ return ret;
+
if (nor->spimem) {
struct spi_mem_op op = SPI_NOR_CHIP_ERASE_OP;
@@ -1481,10 +1491,14 @@ static u32 spi_nor_convert_addr(struct spi_nor *nor, loff_t addr)
*/
int spi_nor_erase_sector(struct spi_nor *nor, u32 addr)
{
- int i;
+ int i, ret;
addr = spi_nor_convert_addr(nor, addr);
+ ret = spi_nor_write_enable(nor);
+ if (ret)
+ return ret;
+
if (nor->spimem) {
struct spi_mem_op op =
SPI_NOR_SECTOR_ERASE_OP(nor->erase_opcode,
@@ -1777,12 +1791,6 @@ static int spi_nor_erase_multi_sectors(struct spi_nor *nor, u64 addr, u32 len)
if (ret)
goto destroy_erase_cmd_list;
- ret = spi_nor_write_enable(nor);
- if (ret) {
- spi_nor_unlock_device(nor);
- goto destroy_erase_cmd_list;
- }
-
ret = spi_nor_erase_sector(nor, addr);
spi_nor_unlock_device(nor);
if (ret)
@@ -1841,12 +1849,6 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
if (ret)
goto erase_err;
- ret = spi_nor_write_enable(nor);
- if (ret) {
- spi_nor_unlock_device(nor);
- goto erase_err;
- }
-
ret = spi_nor_erase_chip(nor);
spi_nor_unlock_device(nor);
if (ret)
@@ -1877,12 +1879,6 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
if (ret)
goto erase_err;
- ret = spi_nor_write_enable(nor);
- if (ret) {
- spi_nor_unlock_device(nor);
- goto erase_err;
- }
-
ret = spi_nor_erase_sector(nor, addr);
spi_nor_unlock_device(nor);
if (ret)
@@ -2177,12 +2173,6 @@ static int spi_nor_write(struct mtd_info *mtd, loff_t to, size_t len,
if (ret)
goto write_err;
- ret = spi_nor_write_enable(nor);
- if (ret) {
- spi_nor_unlock_device(nor);
- goto write_err;
- }
-
ret = spi_nor_write_data(nor, addr, page_remain, buf + i);
spi_nor_unlock_device(nor);
if (ret < 0)
In most of the register write operations the spi_nor_write_enable is called from within that API from where spi_mem APIs are called. Follwoing the same trend move the write enable API from spi_nor_write & spi_nor_erase APIs to the respective write & erase APIs. Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com> --- drivers/mtd/spi-nor/core.c | 40 ++++++++++++++------------------------ 1 file changed, 15 insertions(+), 25 deletions(-)