[U-Boot] [PATCH v3] spi: mxc_spi: Fix double incrementing read pointer for unaligned buffers

[Jagan Teki]

On Wed, Oct 16, 2013 at 12:11 AM, Jagannadha Sutradharudu Teki
<jagannadha.sutradharudu-teki at xilinx.com> wrote:
> From: Timo Herbrecher <t.herbrecher at gateware.de>
>
> If dout buffer is not 32 bit-aligned or data to transmit is not multiple
> of 32 bit the read data pointer is already incremented on single byte reads.
>
> Signed-off-by: Timo Herbrecher <t.herbrecher at gateware.de>
> Signed-off-by: Jagannadha Sutradharudu Teki <jaganna at xilinx.com>
> ---
> Changes for v3:
>         - Updated commit msg header
> Changes for v2:
>         - none
>
>  drivers/spi/mxc_spi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
> index fd72a65..95dd03f 100644
> --- a/drivers/spi/mxc_spi.c
> +++ b/drivers/spi/mxc_spi.c
> @@ -255,8 +255,8 @@ int spi_xchg_single(struct spi_slave *slave, unsigned int bitlen,
>                         } else {
>                                 data = *(u32 *)dout;
>                                 data = cpu_to_be32(data);
> +                               dout += 4;
>                         }
> -                       dout += 4;
>                 }
>                 debug("Sending SPI 0x%x\n", data);
>                 reg_write(&regs->txdata, data);
> --
> 1.8.3

Applied to u-boot-spi/master

-- 
Thanks,
Jagan.
--------
Jagannadha Sutradharudu Teki,
E: jagannadh.teki at gmail.com, P: +91-9676773388
Engineer - System Software Hacker
U-boot - SPI Custodian and Zynq APSOC
Ln: http://www.linkedin.com/in/jaganteki