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mtd: spi-nor: factor out replace-able flash_{lock,unlock}

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Flash lock/unlock is a flash-specific operations. Factor out a callback
for it to more readily support other vendors.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Tested-by: VIET NGA DAO <vndao@altera.com>
This commit is contained in:
Brian Norris
2015-03-13 00:38:39 -07:00
parent 73c8aaf436
commit 8cc7f33aad
2 changed files with 43 additions and 19 deletions
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5
include/linux/mtd/spi-nor.h
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@@ -155,6 +155,8 @@ enum spi_nor_option_flags {
* @write: [DRIVER-SPECIFIC] write data to the SPI NOR
* @erase: [DRIVER-SPECIFIC] erase a sector of the SPI NOR
* at the offset @offs
* @lock: [FLASH-SPECIFIC] lock a region of the SPI NOR
* @unlock: [FLASH-SPECIFIC] unlock a region of the SPI NOR
* @priv: the private data
*/
struct spi_nor {
@@ -189,6 +191,9 @@ struct spi_nor {
size_t len, size_t *retlen, const u_char *write_buf);
int (*erase)(struct spi_nor *nor, loff_t offs);
int (*flash_lock)(struct spi_nor *nor, loff_t ofs, uint64_t len);
int (*flash_unlock)(struct spi_nor *nor, loff_t ofs, uint64_t len);
void *priv;
};