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drivers: spi: consider command bytes when sending transfers

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Command bytes are part of the written bytes and they should be taken into
account when sending a spi transfer.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
This commit is contained in:
Álvaro Fernández Rojas 2018-01-23 17:14:57 +01:00 • committed by Jagan Teki
parent 8af74edc30
commit 6c94bd12c4
2 changed files with 2 additions and 2 deletions
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2
drivers/mtd/spi/spi_flash.c
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@ -405,7 +405,7 @@ int spi_flash_cmd_write_ops(struct spi_flash *flash, u32 offset,
if (spi->max_write_size)
chunk_len = min(chunk_len,
(size_t)spi->max_write_size);
spi->max_write_size - sizeof(cmd));
spi_flash_addr(write_addr, cmd);

2
include/spi.h
View file

@ -89,7 +89,7 @@ struct dm_spi_slave_platdata {
* @max_read_size: If non-zero, the maximum number of bytes which can
* be read at once.
* @max_write_size: If non-zero, the maximum number of bytes which can
* be written at once, excluding command bytes.
* be written at once.
* @memory_map: Address of read-only SPI flash access.
* @flags: Indication of SPI flags.
*/