serial: ifx6x60: probe routine needs to call spi_setup

The probe routine should call spi_setup() to configure
the SPI bus so it can properly communicate with the device.
E.g. the device operates in SPI mode 1.

Called spi_setup to configure SPI mode, max_speed_hz, and bpw

Signed-off-by: Russ Gorby <russ.gorby@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index 766f0c3..59e9cb8 100644 (file)
--- a/drivers/tty/serial/ifx6x60.c
+++ b/drivers/tty/serial/ifx6x60.c
@@ -67,6 +67,7 @@
 #define IFX_SPI_MORE_MASK              0x10
 #define IFX_SPI_MORE_BIT               12      /* bit position in u16 */
 #define IFX_SPI_CTS_BIT                        13      /* bit position in u16 */
+#define IFX_SPI_MODE                   SPI_MODE_1
 #define IFX_SPI_TTY_ID                 0
 #define IFX_SPI_TIMEOUT_SEC            2
 #define IFX_SPI_HEADER_0               (-1)
@@ -992,7 +993,15 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
        ifx_dev->modem = pl_data->modem_type;
        ifx_dev->use_dma = pl_data->use_dma;
        ifx_dev->max_hz = pl_data->max_hz;
+       /* initialize spi mode, etc */
        spi->max_speed_hz = ifx_dev->max_hz;
+       spi->mode = IFX_SPI_MODE | (SPI_LOOP & spi->mode);
+       spi->bits_per_word = spi_bpw;
+       ret = spi_setup(spi);
+       if (ret) {
+               dev_err(&spi->dev, "SPI setup wasn't successful %d", ret);
+               return -ENODEV;
+       }
 
        /* ensure SPI protocol flags are initialized to enable transfer */
        ifx_dev->spi_more = 0;