Simplify the flash_lock ops detection code and added meaningful comment.
Cc: Simon Glass sjg@chromium.org Cc: Bin Meng bmeng.cn@gmail.com Cc: York Sun york.sun@nxp.com Cc: Vignesh R vigneshr@ti.com Cc: Mugunthan V N mugunthanvnm@ti.com Cc: Michal Simek michal.simek@xilinx.com Cc: Siva Durga Prasad Paladugu sivadur@xilinx.com Signed-off-by: Jagan Teki jteki@openedev.com --- drivers/mtd/spi/spi_flash.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c index daa9014..b92b0bf 100644 --- a/drivers/mtd/spi/spi_flash.c +++ b/drivers/mtd/spi/spi_flash.c @@ -1117,19 +1117,15 @@ int spi_flash_scan(struct spi_flash *flash) flash->read = spi_flash_cmd_read_ops; #endif
- /* lock hooks are flash specific - assign them based on idcode0 */ - switch (JEDEC_MFR(info)) { #if defined(CONFIG_SPI_FLASH_STMICRO) || defined(CONFIG_SPI_FLASH_SST) - case SPI_FLASH_CFI_MFR_STMICRO: - case SPI_FLASH_CFI_MFR_SST: + /* NOR protection support for STmicro/Micron chips and similar */ + if (JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_STMICRO || + JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_SST) { flash->flash_lock = stm_lock; flash->flash_unlock = stm_unlock; flash->flash_is_locked = stm_is_locked; -#endif - break; - default: - debug("SF: Lock ops not supported for %02x flash\n", JEDEC_MFR(info)); } +#endif
/* Compute the flash size */ flash->shift = (flash->dual_flash & SF_DUAL_PARALLEL_FLASH) ? 1 : 0;