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mtd: spi-nor: add mtd_is_locked() support

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This enables ioctl(MEMISLOCKED). Status can now be reported in the
mtdinfo or flash_lock utilities found in mtd-utils.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Brian Norris 2015-09-01 12:57:12 -07:00
parent 62593cf40b
commit 5bf0e69b67
2 changed files with 39 additions and 1 deletions
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3
include/linux/mtd/spi-nor.h
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@ -147,6 +147,8 @@ struct mtd_info;
* at the offset @offs
* @flash_lock: [FLASH-SPECIFIC] lock a region of the SPI NOR
* @flash_unlock: [FLASH-SPECIFIC] unlock a region of the SPI NOR
* @flash_is_locked: [FLASH-SPECIFIC] check if a region of the SPI NOR is
* completely locked
* @priv: the private data
*/
struct spi_nor {
@ -178,6 +180,7 @@ struct spi_nor {
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);
int (*flash_is_locked)(struct spi_nor *nor, loff_t ofs, uint64_t len);
void *priv;
};