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-rw-r--r--drivers/char/hw_random/omap-rng.c121
-rw-r--r--drivers/char/mwave/mwavedd.c16
-rw-r--r--drivers/char/pcmcia/synclink_cs.c131
-rw-r--r--drivers/char/ttyprintk.c33
4 files changed, 151 insertions, 150 deletions
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 4fbdceb6f773..a5effd813abd 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -18,11 +18,12 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/random.h>
-#include <linux/clk.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/hw_random.h>
#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pm_runtime.h>
#include <asm/io.h>
@@ -46,26 +47,36 @@
#define RNG_SYSSTATUS 0x44 /* System status
[0] = RESETDONE */
-static void __iomem *rng_base;
-static struct clk *rng_ick;
-static struct platform_device *rng_dev;
+/**
+ * struct omap_rng_private_data - RNG IP block-specific data
+ * @base: virtual address of the beginning of the RNG IP block registers
+ * @mem_res: struct resource * for the IP block registers physical memory
+ */
+struct omap_rng_private_data {
+ void __iomem *base;
+ struct resource *mem_res;
+};
-static inline u32 omap_rng_read_reg(int reg)
+static inline u32 omap_rng_read_reg(struct omap_rng_private_data *priv, int reg)
{
- return __raw_readl(rng_base + reg);
+ return __raw_readl(priv->base + reg);
}
-static inline void omap_rng_write_reg(int reg, u32 val)
+static inline void omap_rng_write_reg(struct omap_rng_private_data *priv,
+ int reg, u32 val)
{
- __raw_writel(val, rng_base + reg);
+ __raw_writel(val, priv->base + reg);
}
static int omap_rng_data_present(struct hwrng *rng, int wait)
{
+ struct omap_rng_private_data *priv;
int data, i;
+ priv = (struct omap_rng_private_data *)rng->priv;
+
for (i = 0; i < 20; i++) {
- data = omap_rng_read_reg(RNG_STAT_REG) ? 0 : 1;
+ data = omap_rng_read_reg(priv, RNG_STAT_REG) ? 0 : 1;
if (data || !wait)
break;
/* RNG produces data fast enough (2+ MBit/sec, even
@@ -80,9 +91,13 @@ static int omap_rng_data_present(struct hwrng *rng, int wait)
static int omap_rng_data_read(struct hwrng *rng, u32 *data)
{
- *data = omap_rng_read_reg(RNG_OUT_REG);
+ struct omap_rng_private_data *priv;
+
+ priv = (struct omap_rng_private_data *)rng->priv;
+
+ *data = omap_rng_read_reg(priv, RNG_OUT_REG);
- return 4;
+ return sizeof(u32);
}
static struct hwrng omap_rng_ops = {
@@ -93,69 +108,68 @@ static struct hwrng omap_rng_ops = {
static int __devinit omap_rng_probe(struct platform_device *pdev)
{
- struct resource *res;
+ struct omap_rng_private_data *priv;
int ret;
- /*
- * A bit ugly, and it will never actually happen but there can
- * be only one RNG and this catches any bork
- */
- if (rng_dev)
- return -EBUSY;
-
- if (cpu_is_omap24xx()) {
- rng_ick = clk_get(&pdev->dev, "ick");
- if (IS_ERR(rng_ick)) {
- dev_err(&pdev->dev, "Could not get rng_ick\n");
- ret = PTR_ERR(rng_ick);
- return ret;
- } else
- clk_enable(rng_ick);
- }
+ priv = kzalloc(sizeof(struct omap_rng_private_data), GFP_KERNEL);
+ if (!priv) {
+ dev_err(&pdev->dev, "could not allocate memory\n");
+ return -ENOMEM;
+ };
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ omap_rng_ops.priv = (unsigned long)priv;
+ dev_set_drvdata(&pdev->dev, priv);
- rng_base = devm_request_and_ioremap(&pdev->dev, res);
- if (!rng_base) {
+ priv->mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!priv->mem_res) {
+ ret = -ENOENT;
+ goto err_ioremap;
+ }
+
+ priv->base = devm_request_and_ioremap(&pdev->dev, priv->mem_res);
+ if (!priv->base) {
ret = -ENOMEM;
goto err_ioremap;
}
- dev_set_drvdata(&pdev->dev, res);
+ dev_set_drvdata(&pdev->dev, priv);
+
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_get_sync(&pdev->dev);
ret = hwrng_register(&omap_rng_ops);
if (ret)
goto err_register;
dev_info(&pdev->dev, "OMAP Random Number Generator ver. %02x\n",
- omap_rng_read_reg(RNG_REV_REG));
- omap_rng_write_reg(RNG_MASK_REG, 0x1);
+ omap_rng_read_reg(priv, RNG_REV_REG));
- rng_dev = pdev;
+ omap_rng_write_reg(priv, RNG_MASK_REG, 0x1);
return 0;
err_register:
- rng_base = NULL;
+ priv->base = NULL;
+ pm_runtime_disable(&pdev->dev);
err_ioremap:
- if (cpu_is_omap24xx()) {
- clk_disable(rng_ick);
- clk_put(rng_ick);
- }
+ kfree(priv);
+
return ret;
}
static int __exit omap_rng_remove(struct platform_device *pdev)
{
+ struct omap_rng_private_data *priv = dev_get_drvdata(&pdev->dev);
+
hwrng_unregister(&omap_rng_ops);
- omap_rng_write_reg(RNG_MASK_REG, 0x0);
+ omap_rng_write_reg(priv, RNG_MASK_REG, 0x0);
- if (cpu_is_omap24xx()) {
- clk_disable(rng_ick);
- clk_put(rng_ick);
- }
+ pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+
+ release_mem_region(priv->mem_res->start, resource_size(priv->mem_res));
- rng_base = NULL;
+ kfree(priv);
return 0;
}
@@ -164,13 +178,21 @@ static int __exit omap_rng_remove(struct platform_device *pdev)
static int omap_rng_suspend(struct device *dev)
{
- omap_rng_write_reg(RNG_MASK_REG, 0x0);
+ struct omap_rng_private_data *priv = dev_get_drvdata(dev);
+
+ omap_rng_write_reg(priv, RNG_MASK_REG, 0x0);
+ pm_runtime_put_sync(dev);
+
return 0;
}
static int omap_rng_resume(struct device *dev)
{
- omap_rng_write_reg(RNG_MASK_REG, 0x1);
+ struct omap_rng_private_data *priv = dev_get_drvdata(dev);
+
+ pm_runtime_get_sync(dev);
+ omap_rng_write_reg(priv, RNG_MASK_REG, 0x1);
+
return 0;
}
@@ -198,9 +220,6 @@ static struct platform_driver omap_rng_driver = {
static int __init omap_rng_init(void)
{
- if (!cpu_is_omap16xx() && !cpu_is_omap24xx())
- return -ENODEV;
-
return platform_driver_register(&omap_rng_driver);
}
diff --git a/drivers/char/mwave/mwavedd.c b/drivers/char/mwave/mwavedd.c
index 1d82d5838f0c..164544afd680 100644
--- a/drivers/char/mwave/mwavedd.c
+++ b/drivers/char/mwave/mwavedd.c
@@ -430,7 +430,7 @@ static ssize_t mwave_write(struct file *file, const char __user *buf,
static int register_serial_portandirq(unsigned int port, int irq)
{
- struct uart_port uart;
+ struct uart_8250_port uart;
switch ( port ) {
case 0x3f8:
@@ -462,14 +462,14 @@ static int register_serial_portandirq(unsigned int port, int irq)
} /* switch */
/* irq is okay */
- memset(&uart, 0, sizeof(struct uart_port));
+ memset(&uart, 0, sizeof(uart));
- uart.uartclk = 1843200;
- uart.iobase = port;
- uart.irq = irq;
- uart.iotype = UPIO_PORT;
- uart.flags = UPF_SHARE_IRQ;
- return serial8250_register_port(&uart);
+ uart.port.uartclk = 1843200;
+ uart.port.iobase = port;
+ uart.port.irq = irq;
+ uart.port.iotype = UPIO_PORT;
+ uart.port.flags = UPF_SHARE_IRQ;
+ return serial8250_register_8250_port(&uart);
}
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 0a484b4a1b02..3f57d5de3957 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -1050,7 +1050,7 @@ static void cts_change(MGSLPC_INFO *info, struct tty_struct *tty)
wake_up_interruptible(&info->status_event_wait_q);
wake_up_interruptible(&info->event_wait_q);
- if (info->port.flags & ASYNC_CTS_FLOW) {
+ if (tty_port_cts_enabled(&info->port)) {
if (tty->hw_stopped) {
if (info->serial_signals & SerialSignal_CTS) {
if (debug_level >= DEBUG_LEVEL_ISR)
@@ -1344,7 +1344,7 @@ static void shutdown(MGSLPC_INFO * info, struct tty_struct *tty)
/* TODO:disable interrupts instead of reset to preserve signal states */
reset_device(info);
- if (!tty || tty->termios->c_cflag & HUPCL) {
+ if (!tty || tty->termios.c_cflag & HUPCL) {
info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
set_signals(info);
}
@@ -1385,7 +1385,7 @@ static void mgslpc_program_hw(MGSLPC_INFO *info, struct tty_struct *tty)
port_irq_enable(info, (unsigned char) PVR_DSR | PVR_RI);
get_signals(info);
- if (info->netcount || (tty && (tty->termios->c_cflag & CREAD)))
+ if (info->netcount || (tty && (tty->termios.c_cflag & CREAD)))
rx_start(info);
spin_unlock_irqrestore(&info->lock,flags);
@@ -1398,14 +1398,14 @@ static void mgslpc_change_params(MGSLPC_INFO *info, struct tty_struct *tty)
unsigned cflag;
int bits_per_char;
- if (!tty || !tty->termios)
+ if (!tty)
return;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_change_params(%s)\n",
__FILE__,__LINE__, info->device_name );
- cflag = tty->termios->c_cflag;
+ cflag = tty->termios.c_cflag;
/* if B0 rate (hangup) specified then negate DTR and RTS */
/* otherwise assert DTR and RTS */
@@ -1728,7 +1728,7 @@ static void mgslpc_throttle(struct tty_struct * tty)
if (I_IXOFF(tty))
mgslpc_send_xchar(tty, STOP_CHAR(tty));
- if (tty->termios->c_cflag & CRTSCTS) {
+ if (tty->termios.c_cflag & CRTSCTS) {
spin_lock_irqsave(&info->lock,flags);
info->serial_signals &= ~SerialSignal_RTS;
set_signals(info);
@@ -1757,7 +1757,7 @@ static void mgslpc_unthrottle(struct tty_struct * tty)
mgslpc_send_xchar(tty, START_CHAR(tty));
}
- if (tty->termios->c_cflag & CRTSCTS) {
+ if (tty->termios.c_cflag & CRTSCTS) {
spin_lock_irqsave(&info->lock,flags);
info->serial_signals |= SerialSignal_RTS;
set_signals(info);
@@ -2293,8 +2293,8 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
tty->driver->name );
/* just return if nothing has changed */
- if ((tty->termios->c_cflag == old_termios->c_cflag)
- && (RELEVANT_IFLAG(tty->termios->c_iflag)
+ if ((tty->termios.c_cflag == old_termios->c_cflag)
+ && (RELEVANT_IFLAG(tty->termios.c_iflag)
== RELEVANT_IFLAG(old_termios->c_iflag)))
return;
@@ -2302,7 +2302,7 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
/* Handle transition to B0 status */
if (old_termios->c_cflag & CBAUD &&
- !(tty->termios->c_cflag & CBAUD)) {
+ !(tty->termios.c_cflag & CBAUD)) {
info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
spin_lock_irqsave(&info->lock,flags);
set_signals(info);
@@ -2311,9 +2311,9 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
/* Handle transition away from B0 status */
if (!(old_termios->c_cflag & CBAUD) &&
- tty->termios->c_cflag & CBAUD) {
+ tty->termios.c_cflag & CBAUD) {
info->serial_signals |= SerialSignal_DTR;
- if (!(tty->termios->c_cflag & CRTSCTS) ||
+ if (!(tty->termios.c_cflag & CRTSCTS) ||
!test_bit(TTY_THROTTLED, &tty->flags)) {
info->serial_signals |= SerialSignal_RTS;
}
@@ -2324,7 +2324,7 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
/* Handle turning off CRTSCTS */
if (old_termios->c_cflag & CRTSCTS &&
- !(tty->termios->c_cflag & CRTSCTS)) {
+ !(tty->termios.c_cflag & CRTSCTS)) {
tty->hw_stopped = 0;
tx_release(tty);
}
@@ -2731,6 +2731,8 @@ static void mgslpc_add_device(MGSLPC_INFO *info)
#if SYNCLINK_GENERIC_HDLC
hdlcdev_init(info);
#endif
+ tty_port_register_device(&info->port, serial_driver, info->line,
+ &info->p_dev->dev);
}
static void mgslpc_remove_device(MGSLPC_INFO *remove_info)
@@ -2744,6 +2746,7 @@ static void mgslpc_remove_device(MGSLPC_INFO *remove_info)
last->next_device = info->next_device;
else
mgslpc_device_list = info->next_device;
+ tty_unregister_device(serial_driver, info->line);
#if SYNCLINK_GENERIC_HDLC
hdlcdev_exit(info);
#endif
@@ -2798,77 +2801,63 @@ static const struct tty_operations mgslpc_ops = {
.proc_fops = &mgslpc_proc_fops,
};
-static void synclink_cs_cleanup(void)
+static int __init synclink_cs_init(void)
{
int rc;
- while(mgslpc_device_list)
- mgslpc_remove_device(mgslpc_device_list);
-
- if (serial_driver) {
- if ((rc = tty_unregister_driver(serial_driver)))
- printk("%s(%d) failed to unregister tty driver err=%d\n",
- __FILE__,__LINE__,rc);
- put_tty_driver(serial_driver);
+ if (break_on_load) {
+ mgslpc_get_text_ptr();
+ BREAKPOINT();
}
- pcmcia_unregister_driver(&mgslpc_driver);
-}
-
-static int __init synclink_cs_init(void)
-{
- int rc;
-
- if (break_on_load) {
- mgslpc_get_text_ptr();
- BREAKPOINT();
- }
-
- if ((rc = pcmcia_register_driver(&mgslpc_driver)) < 0)
- return rc;
-
- serial_driver = alloc_tty_driver(MAX_DEVICE_COUNT);
- if (!serial_driver) {
- rc = -ENOMEM;
- goto error;
- }
+ serial_driver = tty_alloc_driver(MAX_DEVICE_COUNT,
+ TTY_DRIVER_REAL_RAW |
+ TTY_DRIVER_DYNAMIC_DEV);
+ if (IS_ERR(serial_driver)) {
+ rc = PTR_ERR(serial_driver);
+ goto err;
+ }
- /* Initialize the tty_driver structure */
-
- serial_driver->driver_name = "synclink_cs";
- serial_driver->name = "ttySLP";
- serial_driver->major = ttymajor;
- serial_driver->minor_start = 64;
- serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
- serial_driver->subtype = SERIAL_TYPE_NORMAL;
- serial_driver->init_termios = tty_std_termios;
- serial_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- serial_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(serial_driver, &mgslpc_ops);
-
- if ((rc = tty_register_driver(serial_driver)) < 0) {
- printk("%s(%d):Couldn't register serial driver\n",
- __FILE__,__LINE__);
- put_tty_driver(serial_driver);
- serial_driver = NULL;
- goto error;
- }
+ /* Initialize the tty_driver structure */
+ serial_driver->driver_name = "synclink_cs";
+ serial_driver->name = "ttySLP";
+ serial_driver->major = ttymajor;
+ serial_driver->minor_start = 64;
+ serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
+ serial_driver->subtype = SERIAL_TYPE_NORMAL;
+ serial_driver->init_termios = tty_std_termios;
+ serial_driver->init_termios.c_cflag =
+ B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ tty_set_operations(serial_driver, &mgslpc_ops);
+
+ rc = tty_register_driver(serial_driver);
+ if (rc < 0) {
+ printk(KERN_ERR "%s(%d):Couldn't register serial driver\n",
+ __FILE__, __LINE__);
+ goto err_put_tty;
+ }
- printk("%s %s, tty major#%d\n",
- driver_name, driver_version,
- serial_driver->major);
+ rc = pcmcia_register_driver(&mgslpc_driver);
+ if (rc < 0)
+ goto err_unreg_tty;
- return 0;
+ printk(KERN_INFO "%s %s, tty major#%d\n", driver_name, driver_version,
+ serial_driver->major);
-error:
- synclink_cs_cleanup();
- return rc;
+ return 0;
+err_unreg_tty:
+ tty_unregister_driver(serial_driver);
+err_put_tty:
+ put_tty_driver(serial_driver);
+err:
+ return rc;
}
static void __exit synclink_cs_exit(void)
{
- synclink_cs_cleanup();
+ pcmcia_unregister_driver(&mgslpc_driver);
+ tty_unregister_driver(serial_driver);
+ put_tty_driver(serial_driver);
}
module_init(synclink_cs_init);
diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c
index 46b77ede84c0..af98f6d6509b 100644
--- a/drivers/char/ttyprintk.c
+++ b/drivers/char/ttyprintk.c
@@ -67,7 +67,7 @@ static int tpk_printk(const unsigned char *buf, int count)
tmp[tpk_curr + 1] = '\0';
printk(KERN_INFO "%s%s", tpk_tag, tmp);
tpk_curr = 0;
- if (buf[i + 1] == '\n')
+ if ((i + 1) < count && buf[i + 1] == '\n')
i++;
break;
case '\n':
@@ -178,11 +178,17 @@ static struct tty_driver *ttyprintk_driver;
static int __init ttyprintk_init(void)
{
int ret = -ENOMEM;
- void *rp;
- ttyprintk_driver = alloc_tty_driver(1);
- if (!ttyprintk_driver)
- return ret;
+ tty_port_init(&tpk_port.port);
+ tpk_port.port.ops = &null_ops;
+ mutex_init(&tpk_port.port_write_mutex);
+
+ ttyprintk_driver = tty_alloc_driver(1,
+ TTY_DRIVER_RESET_TERMIOS |
+ TTY_DRIVER_REAL_RAW |
+ TTY_DRIVER_UNNUMBERED_NODE);
+ if (IS_ERR(ttyprintk_driver))
+ return PTR_ERR(ttyprintk_driver);
ttyprintk_driver->driver_name = "ttyprintk";
ttyprintk_driver->name = "ttyprintk";
@@ -191,9 +197,8 @@ static int __init ttyprintk_init(void)
ttyprintk_driver->type = TTY_DRIVER_TYPE_CONSOLE;
ttyprintk_driver->init_termios = tty_std_termios;
ttyprintk_driver->init_termios.c_oflag = OPOST | OCRNL | ONOCR | ONLRET;
- ttyprintk_driver->flags = TTY_DRIVER_RESET_TERMIOS |
- TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(ttyprintk_driver, &ttyprintk_ops);
+ tty_port_link_device(&tpk_port.port, ttyprintk_driver, 0);
ret = tty_register_driver(ttyprintk_driver);
if (ret < 0) {
@@ -201,22 +206,10 @@ static int __init ttyprintk_init(void)
goto error;
}
- /* create our unnumbered device */
- rp = device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 3), NULL,
- ttyprintk_driver->name);
- if (IS_ERR(rp)) {
- printk(KERN_ERR "Couldn't create ttyprintk device\n");
- ret = PTR_ERR(rp);
- goto error;
- }
-
- tty_port_init(&tpk_port.port);
- tpk_port.port.ops = &null_ops;
- mutex_init(&tpk_port.port_write_mutex);
-
return 0;
error:
+ tty_unregister_driver(ttyprintk_driver);
put_tty_driver(ttyprintk_driver);
ttyprintk_driver = NULL;
return ret;
generated by cgit v1.2.3 (git 2.0.4) at 2025-06-08 05:51:49 +0000