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path: root/drivers/tty/serial/ifx6x60.c
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Diffstat (limited to 'drivers/tty/serial/ifx6x60.c')
-rw-r--r--drivers/tty/serial/ifx6x60.c68
1 files changed, 39 insertions, 29 deletions
diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index ab93763..8ee5a41 100644
--- a/drivers/tty/serial/ifx6x60.c
+++ b/drivers/tty/serial/ifx6x60.c
@@ -8,7 +8,7 @@
* Jan Dumon <j.dumon@option.com>
*
* Copyright (C) 2009, 2010 Intel Corp
- * Russ Gorby <richardx.r.gorby@intel.com>
+ * Russ Gorby <russ.gorby@intel.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -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)
@@ -76,7 +77,7 @@
static void ifx_spi_handle_srdy(struct ifx_spi_device *ifx_dev);
/* local variables */
-static int spi_b16 = 1; /* 8 or 16 bit word length */
+static int spi_bpw = 16; /* 8, 16 or 32 bit word length */
static struct tty_driver *tty_drv;
static struct ifx_spi_device *saved_ifx_dev;
static struct lock_class_key ifx_spi_key;
@@ -244,7 +245,7 @@ static void ifx_spi_timeout(unsigned long arg)
* Map the signal state into Linux modem flags and report the value
* in Linux terms
*/
-static int ifx_spi_tiocmget(struct tty_struct *tty, struct file *filp)
+static int ifx_spi_tiocmget(struct tty_struct *tty)
{
unsigned int value;
struct ifx_spi_device *ifx_dev = tty->driver_data;
@@ -262,7 +263,6 @@ static int ifx_spi_tiocmget(struct tty_struct *tty, struct file *filp)
/**
* ifx_spi_tiocmset - set modem bits
* @tty: the tty structure
- * @filp: file handle issuing the request
* @set: bits to set
* @clear: bits to clear
*
@@ -271,7 +271,7 @@ static int ifx_spi_tiocmget(struct tty_struct *tty, struct file *filp)
*
* FIXME: do we need to kick the tranfers when we do this ?
*/
-static int ifx_spi_tiocmset(struct tty_struct *tty, struct file *filp,
+static int ifx_spi_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
{
struct ifx_spi_device *ifx_dev = tty->driver_data;
@@ -722,9 +722,9 @@ static void ifx_spi_io(unsigned long data)
/* note len is BYTES, not transfers */
ifx_dev->spi_xfer.len = IFX_SPI_TRANSFER_SIZE;
ifx_dev->spi_xfer.cs_change = 0;
- ifx_dev->spi_xfer.speed_hz = 12500000;
+ 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_b16 ? 16 : 8;
+ ifx_dev->spi_xfer.bits_per_word = spi_bpw;
ifx_dev->spi_xfer.tx_buf = ifx_dev->tx_buffer;
ifx_dev->spi_xfer.rx_buf = ifx_dev->rx_buffer;
@@ -732,7 +732,7 @@ static void ifx_spi_io(unsigned long data)
/*
* setup dma pointers
*/
- if (ifx_dev->is_6160) {
+ if (ifx_dev->use_dma) {
ifx_dev->spi_msg.is_dma_mapped = 1;
ifx_dev->tx_dma = ifx_dev->tx_bus;
ifx_dev->rx_dma = ifx_dev->rx_bus;
@@ -798,8 +798,8 @@ static int ifx_spi_create_port(struct ifx_spi_device *ifx_dev)
goto error_ret;
}
- pport->ops = &ifx_tty_port_ops;
tty_port_init(pport);
+ pport->ops = &ifx_tty_port_ops;
ifx_dev->minor = IFX_SPI_TTY_ID;
ifx_dev->tty_dev = tty_register_device(tty_drv, ifx_dev->minor,
&ifx_dev->spi_dev->dev);
@@ -960,7 +960,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
{
int ret;
int srdy;
- struct ifx_modem_platform_data *pl_data = NULL;
+ struct ifx_modem_platform_data *pl_data;
struct ifx_spi_device *ifx_dev;
if (saved_ifx_dev) {
@@ -968,6 +968,12 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
return -ENODEV;
}
+ pl_data = (struct ifx_modem_platform_data *)spi->dev.platform_data;
+ if (!pl_data) {
+ dev_err(&spi->dev, "missing platform data!");
+ return -ENODEV;
+ }
+
/* initialize structure to hold our device variables */
ifx_dev = kzalloc(sizeof(struct ifx_spi_device), GFP_KERNEL);
if (!ifx_dev) {
@@ -983,14 +989,25 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
init_timer(&ifx_dev->spi_timer);
ifx_dev->spi_timer.function = ifx_spi_timeout;
ifx_dev->spi_timer.data = (unsigned long)ifx_dev;
- ifx_dev->is_6160 = pl_data->is_6160;
+ 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;
ifx_dev->spi_slave_cts = 0;
/*initialize transfer and dma buffers */
- ifx_dev->tx_buffer = dma_alloc_coherent(&ifx_dev->spi_dev->dev,
+ ifx_dev->tx_buffer = dma_alloc_coherent(ifx_dev->spi_dev->dev.parent,
IFX_SPI_TRANSFER_SIZE,
&ifx_dev->tx_bus,
GFP_KERNEL);
@@ -999,7 +1016,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
ret = -ENOMEM;
goto error_ret;
}
- ifx_dev->rx_buffer = dma_alloc_coherent(&ifx_dev->spi_dev->dev,
+ ifx_dev->rx_buffer = dma_alloc_coherent(ifx_dev->spi_dev->dev.parent,
IFX_SPI_TRANSFER_SIZE,
&ifx_dev->rx_bus,
GFP_KERNEL);
@@ -1025,18 +1042,11 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
goto error_ret;
}
- pl_data = (struct ifx_modem_platform_data *)spi->dev.platform_data;
- if (pl_data) {
- ifx_dev->gpio.reset = pl_data->rst_pmu;
- ifx_dev->gpio.po = pl_data->pwr_on;
- ifx_dev->gpio.mrdy = pl_data->mrdy;
- ifx_dev->gpio.srdy = pl_data->srdy;
- ifx_dev->gpio.reset_out = pl_data->rst_out;
- } else {
- dev_err(&spi->dev, "missing platform data!");
- ret = -ENODEV;
- goto error_ret;
- }
+ ifx_dev->gpio.reset = pl_data->rst_pmu;
+ ifx_dev->gpio.po = pl_data->pwr_on;
+ ifx_dev->gpio.mrdy = pl_data->mrdy;
+ ifx_dev->gpio.srdy = pl_data->srdy;
+ ifx_dev->gpio.reset_out = pl_data->rst_out;
dev_info(&spi->dev, "gpios %d, %d, %d, %d, %d",
ifx_dev->gpio.reset, ifx_dev->gpio.po, ifx_dev->gpio.mrdy,
@@ -1322,9 +1332,9 @@ static const struct spi_device_id ifx_id_table[] = {
MODULE_DEVICE_TABLE(spi, ifx_id_table);
/* spi operations */
-static const struct spi_driver ifx_spi_driver_6160 = {
+static const struct spi_driver ifx_spi_driver = {
.driver = {
- .name = "ifx6160",
+ .name = DRVNAME,
.bus = &spi_bus_type,
.pm = &ifx_spi_pm,
.owner = THIS_MODULE},
@@ -1346,7 +1356,7 @@ static void __exit ifx_spi_exit(void)
{
/* unregister */
tty_unregister_driver(tty_drv);
- spi_unregister_driver((void *)&ifx_spi_driver_6160);
+ spi_unregister_driver((void *)&ifx_spi_driver);
}
/**
@@ -1388,7 +1398,7 @@ static int __init ifx_spi_init(void)
return result;
}
- result = spi_register_driver((void *)&ifx_spi_driver_6160);
+ result = spi_register_driver((void *)&ifx_spi_driver);
if (result) {
pr_err("%s: spi_register_driver failed(%d)",
DRVNAME, result);
generated by cgit v1.1 at 2024-07-01 01:34:19 +0000