Commit e76d2a81 authored by Akshay Saraswat's avatar Akshay Saraswat Committed by Minkyu Kang

Exynos: SPI: Fix reading data from SPI flash

SPI recieve and transfer code in exynos_spi driver has a logical bug.
We read data in a variable which can hold an integer. Then we assign
this integer 32 bit value to another variable which has data type uchar.
Latter represents a unit of our recieve buffer. Everytime when we write
a value to our recieve buffer we step ahead by 4 units when actually we
wrote to one unit. This results in the loss of 3 bytes out of every 4
bytes recieved. This patch intends to fix this bug.
Signed-off-by: default avatarAkshay Saraswat <>
Acked-by: default avatarSimon Glass <>
Tested-by: default avatarSimon Glass <>
Signed-off-by: default avatarMinkyu Kang <>
parent 4a188365
......@@ -302,7 +302,10 @@ static int spi_rx_tx(struct exynos_spi_slave *spi_slave, int todo,
} else {
if (rxp || stopping) {
*rxp = temp;
if (step == 4)
*(uint32_t *)rxp = temp;
*rxp = temp;
rxp += step;
in_bytes -= step;
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