serial:ifx6x60:Keep word size accordance with SPI controller

As protocol driver, IFX SPI driver initiate to setup SPI master with default
SPI word size as 16 bit/word, however, SPI master may not adopt this default
value due to SPI controller's capability, it might choose an available value by
itself and set it to spi_device.bits_per_word. In order to keep align with
Controller, IFX driver should make use of this value during SPI transfer,
but the default one.

Signed-off-by: Chen Jun <jun.d.chen@intel.com>
Signed-off-by: channing <chao.bi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index 7eed3235dad4f45218d71df53cbe2efb244429c4..8cb6d8d66a1362b1b2f5566a875c1f56248a3b29 100644 (file)
--- a/drivers/tty/serial/ifx6x60.c
+++ b/drivers/tty/serial/ifx6x60.c
@@ -811,7 +811,8 @@ static void ifx_spi_io(unsigned long data)
                ifx_dev->spi_xfer.cs_change = 0;
                ifx_dev->spi_xfer.speed_hz = ifx_dev->spi_dev->max_speed_hz;
                /* ifx_dev->spi_xfer.speed_hz = 390625; */
-               ifx_dev->spi_xfer.bits_per_word = spi_bpw;
+               ifx_dev->spi_xfer.bits_per_word =
+                       ifx_dev->spi_dev->bits_per_word;
 
                ifx_dev->spi_xfer.tx_buf = ifx_dev->tx_buffer;
                ifx_dev->spi_xfer.rx_buf = ifx_dev->rx_buffer;