blob: 9c7b93ed2d05145fb59d42d8098e742b9519fe6b (
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--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -530,6 +530,8 @@ static int m25p80_read(struct mtd_info *
if (dummy < 0) {
dev_err(&flash->spi->dev, "No valid read command supported\n");
return -EINVAL;
+ } else if (dummy == 1) {
+ t[0].dummy = true;
}
t[0].type = SPI_TRANSFER_FLASH_READ_CMD;
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -262,6 +262,10 @@ static int ath79_spi_do_read_flash_cmd(s
sp->read_addr = 0;
len = t->len - 1;
+
+ if (t->dummy)
+ len -= 1;
+
p = t->tx_buf;
while (len--) {
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -598,6 +598,7 @@ struct spi_transfer {
u16 delay_usecs;
u32 speed_hz;
enum spi_transfer_type type;
+ bool dummy;
struct list_head transfer_list;
};
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