diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/spi/sf_ops.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mtd/spi/sf_ops.c b/drivers/mtd/spi/sf_ops.c index 108665f..e316a69 100644 --- a/drivers/mtd/spi/sf_ops.c +++ b/drivers/mtd/spi/sf_ops.c @@ -273,9 +273,15 @@ int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset, /* Handle memory-mapped SPI */ if (flash->memory_map) { + ret = spi_claim_bus(flash->spi); + if (ret) { + debug("SF: unable to claim SPI bus\n"); + return ret; + } spi_xfer(flash->spi, 0, NULL, NULL, SPI_XFER_MMAP); memcpy(data, flash->memory_map + offset, len); spi_xfer(flash->spi, 0, NULL, NULL, SPI_XFER_MMAP_END); + spi_release_bus(flash->spi); return 0; } |