From 2aff8d90a073e5a07e1ff5a94779d6a21fb72dd2 Mon Sep 17 00:00:00 2001
From: Russ Gorby <russ.gorby@intel.com>
Date: Mon, 7 Feb 2011 12:02:31 -0800
Subject: [PATCH] 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>
---
drivers/tty/serial/ifx6x60.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index 766f0c3aabcfa..59e9cb87b7de8 100644
--- 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;
--
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