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-rw-r--r--drivers/ata/pata_mpc52xx.c2
-rw-r--r--drivers/char/hw_random/powernv-rng.c2
-rw-r--r--drivers/edac/mpc85xx_edac.c2
-rw-r--r--drivers/edac/ppc4xx_edac.c1
-rw-r--r--drivers/i2c/busses/i2c-mpc.c7
-rw-r--r--drivers/macintosh/adb.c2
-rw-r--r--drivers/net/can/mscan/mpc5xxx_can.c2
-rw-r--r--drivers/net/ethernet/freescale/fec_mpc52xx.c2
-rw-r--r--drivers/net/ethernet/freescale/fec_mpc52xx_phy.c3
-rw-r--r--drivers/net/ethernet/freescale/fs_enet/mii-fec.c4
-rw-r--r--drivers/scsi/cxlflash/ocxl_hw.c1
-rw-r--r--drivers/scsi/mesh.c7
-rw-r--r--drivers/spi/spi-mpc52xx.c2
-rw-r--r--drivers/tty/serial/mpc52xx_uart.c4
-rw-r--r--drivers/video/fbdev/offb.c1
-rw-r--r--drivers/watchdog/Kconfig8
-rw-r--r--drivers/watchdog/Makefile1
-rw-r--r--drivers/watchdog/pseries-wdt.c239
18 files changed, 269 insertions, 21 deletions
diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 03b6ae37a578..6559b606736d 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -683,7 +683,7 @@ static int mpc52xx_ata_probe(struct platform_device *op)
struct bcom_task *dmatsk;
/* Get ipb frequency */
- ipb_freq = mpc5xxx_get_bus_frequency(op->dev.of_node);
+ ipb_freq = mpc5xxx_get_bus_frequency(&op->dev);
if (!ipb_freq) {
dev_err(&op->dev, "could not determine IPB bus frequency\n");
return -ENODEV;
diff --git a/drivers/char/hw_random/powernv-rng.c b/drivers/char/hw_random/powernv-rng.c
index 8da1d7917bdc..429e956f34e1 100644
--- a/drivers/char/hw_random/powernv-rng.c
+++ b/drivers/char/hw_random/powernv-rng.c
@@ -23,7 +23,7 @@ static int powernv_rng_read(struct hwrng *rng, void *data, size_t max, bool wait
buf = (unsigned long *)data;
for (i = 0; i < len; i++)
- powernv_get_random_long(buf++);
+ pnv_get_random_long(buf++);
return len * sizeof(unsigned long);
}
diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
index 5bf92298554d..e50d7928bf8f 100644
--- a/drivers/edac/mpc85xx_edac.c
+++ b/drivers/edac/mpc85xx_edac.c
@@ -24,6 +24,8 @@
#include <linux/of_platform.h>
#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
#include "edac_module.h"
#include "mpc85xx_edac.h"
#include "fsl_ddr_edac.h"
diff --git a/drivers/edac/ppc4xx_edac.c b/drivers/edac/ppc4xx_edac.c
index 6793f6d799e7..0bc670778c99 100644
--- a/drivers/edac/ppc4xx_edac.c
+++ b/drivers/edac/ppc4xx_edac.c
@@ -11,6 +11,7 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/of_device.h>
+#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/types.h>
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index 6c698c10d3cd..81ac92bb4f6f 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -239,6 +239,7 @@ static const struct mpc_i2c_divider mpc_i2c_dividers_52xx[] = {
static int mpc_i2c_get_fdr_52xx(struct device_node *node, u32 clock,
u32 *real_clk)
{
+ struct fwnode_handle *fwnode = of_fwnode_handle(node);
const struct mpc_i2c_divider *div = NULL;
unsigned int pvr = mfspr(SPRN_PVR);
u32 divider;
@@ -246,12 +247,12 @@ static int mpc_i2c_get_fdr_52xx(struct device_node *node, u32 clock,
if (clock == MPC_I2C_CLOCK_LEGACY) {
/* see below - default fdr = 0x3f -> div = 2048 */
- *real_clk = mpc5xxx_get_bus_frequency(node) / 2048;
+ *real_clk = mpc5xxx_fwnode_get_bus_frequency(fwnode) / 2048;
return -EINVAL;
}
/* Determine divider value */
- divider = mpc5xxx_get_bus_frequency(node) / clock;
+ divider = mpc5xxx_fwnode_get_bus_frequency(fwnode) / clock;
/*
* We want to choose an FDR/DFSR that generates an I2C bus speed that
@@ -266,7 +267,7 @@ static int mpc_i2c_get_fdr_52xx(struct device_node *node, u32 clock,
break;
}
- *real_clk = mpc5xxx_get_bus_frequency(node) / div->divider;
+ *real_clk = mpc5xxx_fwnode_get_bus_frequency(fwnode) / div->divider;
return (int)div->fdr;
}
diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index 439fab4eaa85..1bbb9ca08d40 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -647,7 +647,7 @@ do_adb_query(struct adb_request *req)
switch(req->data[1]) {
case ADB_QUERY_GETDEVINFO:
- if (req->nbytes < 3)
+ if (req->nbytes < 3 || req->data[2] >= 16)
break;
mutex_lock(&adb_handler_mutex);
req->reply[0] = adb_handler[req->data[2]].original_address;
diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c
index 65ba6697bd7d..c469b2f3e57d 100644
--- a/drivers/net/can/mscan/mpc5xxx_can.c
+++ b/drivers/net/can/mscan/mpc5xxx_can.c
@@ -63,7 +63,7 @@ static u32 mpc52xx_can_get_clock(struct platform_device *ofdev,
else
*mscan_clksrc = MSCAN_CLKSRC_XTAL;
- freq = mpc5xxx_get_bus_frequency(ofdev->dev.of_node);
+ freq = mpc5xxx_get_bus_frequency(&ofdev->dev);
if (!freq)
return 0;
diff --git a/drivers/net/ethernet/freescale/fec_mpc52xx.c b/drivers/net/ethernet/freescale/fec_mpc52xx.c
index 5ddb769bdfb4..a7f4c3c29f3e 100644
--- a/drivers/net/ethernet/freescale/fec_mpc52xx.c
+++ b/drivers/net/ethernet/freescale/fec_mpc52xx.c
@@ -924,7 +924,7 @@ static int mpc52xx_fec_probe(struct platform_device *op)
/* Start with safe defaults for link connection */
priv->speed = 100;
priv->duplex = DUPLEX_HALF;
- priv->mdio_speed = ((mpc5xxx_get_bus_frequency(np) >> 20) / 5) << 1;
+ priv->mdio_speed = ((mpc5xxx_get_bus_frequency(&op->dev) >> 20) / 5) << 1;
/* The current speed preconfigures the speed of the MII link */
prop = of_get_property(np, "current-speed", &prop_size);
diff --git a/drivers/net/ethernet/freescale/fec_mpc52xx_phy.c b/drivers/net/ethernet/freescale/fec_mpc52xx_phy.c
index f85b5e81dfc1..95f778cce98c 100644
--- a/drivers/net/ethernet/freescale/fec_mpc52xx_phy.c
+++ b/drivers/net/ethernet/freescale/fec_mpc52xx_phy.c
@@ -100,8 +100,7 @@ static int mpc52xx_fec_mdio_probe(struct platform_device *of)
dev_set_drvdata(dev, bus);
/* set MII speed */
- out_be32(&priv->regs->mii_speed,
- ((mpc5xxx_get_bus_frequency(of->dev.of_node) >> 20) / 5) << 1);
+ out_be32(&priv->regs->mii_speed, ((mpc5xxx_get_bus_frequency(dev) >> 20) / 5) << 1);
err = of_mdiobus_register(bus, np);
if (err)
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
index 152f4d83765a..d37d7a19a759 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
@@ -102,7 +102,7 @@ static int fs_enet_mdio_probe(struct platform_device *ofdev)
struct resource res;
struct mii_bus *new_bus;
struct fec_info *fec;
- int (*get_bus_freq)(struct device_node *);
+ int (*get_bus_freq)(struct device *);
int ret = -ENOMEM, clock, speed;
match = of_match_device(fs_enet_mdio_fec_match, &ofdev->dev);
@@ -136,7 +136,7 @@ static int fs_enet_mdio_probe(struct platform_device *ofdev)
}
if (get_bus_freq) {
- clock = get_bus_freq(ofdev->dev.of_node);
+ clock = get_bus_freq(&ofdev->dev);
if (!clock) {
/* Use maximum divider if clock is unknown */
dev_warn(&ofdev->dev, "could not determine IPS clock\n");
diff --git a/drivers/scsi/cxlflash/ocxl_hw.c b/drivers/scsi/cxlflash/ocxl_hw.c
index 244fc27215dc..631eda2d467e 100644
--- a/drivers/scsi/cxlflash/ocxl_hw.c
+++ b/drivers/scsi/cxlflash/ocxl_hw.c
@@ -16,6 +16,7 @@
#include <linux/poll.h>
#include <linux/sched/signal.h>
#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
#include <asm/xive.h>
#include <misc/ocxl.h>
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c
index 322d3ad38159..84b541a57b7b 100644
--- a/drivers/scsi/mesh.c
+++ b/drivers/scsi/mesh.c
@@ -38,7 +38,7 @@
#include <asm/irq.h>
#include <asm/hydra.h>
#include <asm/processor.h>
-#include <asm/machdep.h>
+#include <asm/setup.h>
#include <asm/pmac_feature.h>
#include <asm/macio.h>
@@ -1882,11 +1882,6 @@ static int mesh_probe(struct macio_dev *mdev, const struct of_device_id *match)
goto out_release;
}
- /* Old junk for root discovery, that will die ultimately */
-#if !defined(MODULE)
- note_scsi_host(mesh, mesh_host);
-#endif
-
mesh_host->base = macio_resource_start(mdev, 0);
mesh_host->irq = macio_irq(mdev, 0);
ms = (struct mesh_state *) mesh_host->hostdata;
diff --git a/drivers/spi/spi-mpc52xx.c b/drivers/spi/spi-mpc52xx.c
index 3ebdce804b90..bc5e36fd4288 100644
--- a/drivers/spi/spi-mpc52xx.c
+++ b/drivers/spi/spi-mpc52xx.c
@@ -437,7 +437,7 @@ static int mpc52xx_spi_probe(struct platform_device *op)
ms->irq0 = irq_of_parse_and_map(op->dev.of_node, 0);
ms->irq1 = irq_of_parse_and_map(op->dev.of_node, 1);
ms->state = mpc52xx_spi_fsmstate_idle;
- ms->ipb_freq = mpc5xxx_get_bus_frequency(op->dev.of_node);
+ ms->ipb_freq = mpc5xxx_get_bus_frequency(&op->dev);
ms->gpio_cs_count = of_gpio_count(op->dev.of_node);
if (ms->gpio_cs_count > 0) {
master->num_chipselect = ms->gpio_cs_count;
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index e50f069b5ebb..3f1986c89694 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -1630,7 +1630,7 @@ mpc52xx_console_setup(struct console *co, char *options)
return ret;
}
- uartclk = mpc5xxx_get_bus_frequency(np);
+ uartclk = mpc5xxx_fwnode_get_bus_frequency(of_fwnode_handle(np));
if (uartclk == 0) {
pr_debug("Could not find uart clock frequency!\n");
return -EINVAL;
@@ -1747,7 +1747,7 @@ static int mpc52xx_uart_of_probe(struct platform_device *op)
/* set the uart clock to the input clock of the psc, the different
* prescalers are taken into account in the set_baudrate() methods
* of the respective chip */
- uartclk = mpc5xxx_get_bus_frequency(op->dev.of_node);
+ uartclk = mpc5xxx_get_bus_frequency(&op->dev);
if (uartclk == 0) {
dev_dbg(&op->dev, "Could not find uart clock frequency!\n");
return -EINVAL;
diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c
index b1acb1ebebe9..91001990e351 100644
--- a/drivers/video/fbdev/offb.c
+++ b/drivers/video/fbdev/offb.c
@@ -26,6 +26,7 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/pci.h>
+#include <linux/platform_device.h>
#include <asm/io.h>
#ifdef CONFIG_PPC32
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 0796f6a9e8ff..9295492d24f7 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1963,6 +1963,14 @@ config MEN_A21_WDT
# PPC64 Architecture
+config PSERIES_WDT
+ tristate "POWER Architecture Platform Watchdog Timer"
+ depends on PPC_PSERIES
+ select WATCHDOG_CORE
+ help
+ Driver for virtual watchdog timers provided by PAPR
+ hypervisors (e.g. PowerVM, KVM).
+
config WATCHDOG_RTAS
tristate "RTAS watchdog"
depends on PPC_RTAS
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index c324e9d820e9..cdeb119e6e61 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -187,6 +187,7 @@ obj-$(CONFIG_BOOKE_WDT) += booke_wdt.o
obj-$(CONFIG_MEN_A21_WDT) += mena21_wdt.o
# PPC64 Architecture
+obj-$(CONFIG_PSERIES_WDT) += pseries-wdt.o
obj-$(CONFIG_WATCHDOG_RTAS) += wdrtas.o
# S390 Architecture
diff --git a/drivers/watchdog/pseries-wdt.c b/drivers/watchdog/pseries-wdt.c
new file mode 100644
index 000000000000..7f53b5293409
--- /dev/null
+++ b/drivers/watchdog/pseries-wdt.c
@@ -0,0 +1,239 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2022 International Business Machines, Inc.
+ */
+
+#include <linux/bitops.h>
+#include <linux/kernel.h>
+#include <linux/limits.h>
+#include <linux/math.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/time64.h>
+#include <linux/watchdog.h>
+
+#define DRV_NAME "pseries-wdt"
+
+/*
+ * H_WATCHDOG Input
+ *
+ * R4: "flags":
+ *
+ * Bits 48-55: "operation"
+ */
+#define PSERIES_WDTF_OP_START 0x100UL /* start timer */
+#define PSERIES_WDTF_OP_STOP 0x200UL /* stop timer */
+#define PSERIES_WDTF_OP_QUERY 0x300UL /* query timer capabilities */
+
+/*
+ * Bits 56-63: "timeoutAction" (for "Start Watchdog" only)
+ */
+#define PSERIES_WDTF_ACTION_HARD_POWEROFF 0x1UL /* poweroff */
+#define PSERIES_WDTF_ACTION_HARD_RESTART 0x2UL /* restart */
+#define PSERIES_WDTF_ACTION_DUMP_RESTART 0x3UL /* dump + restart */
+
+/*
+ * H_WATCHDOG Output
+ *
+ * R3: Return code
+ *
+ * H_SUCCESS The operation completed.
+ *
+ * H_BUSY The hypervisor is too busy; retry the operation.
+ *
+ * H_PARAMETER The given "flags" are somehow invalid. Either the
+ * "operation" or "timeoutAction" is invalid, or a
+ * reserved bit is set.
+ *
+ * H_P2 The given "watchdogNumber" is zero or exceeds the
+ * supported maximum value.
+ *
+ * H_P3 The given "timeoutInMs" is below the supported
+ * minimum value.
+ *
+ * H_NOOP The given "watchdogNumber" is already stopped.
+ *
+ * H_HARDWARE The operation failed for ineffable reasons.
+ *
+ * H_FUNCTION The H_WATCHDOG hypercall is not supported by this
+ * hypervisor.
+ *
+ * R4:
+ *
+ * - For the "Query Watchdog Capabilities" operation, a 64-bit
+ * structure:
+ */
+#define PSERIES_WDTQ_MIN_TIMEOUT(cap) (((cap) >> 48) & 0xffff)
+#define PSERIES_WDTQ_MAX_NUMBER(cap) (((cap) >> 32) & 0xffff)
+
+static const unsigned long pseries_wdt_action[] = {
+ [0] = PSERIES_WDTF_ACTION_HARD_POWEROFF,
+ [1] = PSERIES_WDTF_ACTION_HARD_RESTART,
+ [2] = PSERIES_WDTF_ACTION_DUMP_RESTART,
+};
+
+#define WATCHDOG_ACTION 1
+static unsigned int action = WATCHDOG_ACTION;
+module_param(action, uint, 0444);
+MODULE_PARM_DESC(action, "Action taken when watchdog expires (default="
+ __MODULE_STRING(WATCHDOG_ACTION) ")");
+
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0444);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+#define WATCHDOG_TIMEOUT 60
+static unsigned int timeout = WATCHDOG_TIMEOUT;
+module_param(timeout, uint, 0444);
+MODULE_PARM_DESC(timeout, "Initial watchdog timeout in seconds (default="
+ __MODULE_STRING(WATCHDOG_TIMEOUT) ")");
+
+struct pseries_wdt {
+ struct watchdog_device wd;
+ unsigned long action;
+ unsigned long num; /* Watchdog numbers are 1-based */
+};
+
+static int pseries_wdt_start(struct watchdog_device *wdd)
+{
+ struct pseries_wdt *pw = watchdog_get_drvdata(wdd);
+ struct device *dev = wdd->parent;
+ unsigned long flags, msecs;
+ long rc;
+
+ flags = pw->action | PSERIES_WDTF_OP_START;
+ msecs = wdd->timeout * MSEC_PER_SEC;
+ rc = plpar_hcall_norets(H_WATCHDOG, flags, pw->num, msecs);
+ if (rc != H_SUCCESS) {
+ dev_crit(dev, "H_WATCHDOG: %ld: failed to start timer %lu",
+ rc, pw->num);
+ return -EIO;
+ }
+ return 0;
+}
+
+static int pseries_wdt_stop(struct watchdog_device *wdd)
+{
+ struct pseries_wdt *pw = watchdog_get_drvdata(wdd);
+ struct device *dev = wdd->parent;
+ long rc;
+
+ rc = plpar_hcall_norets(H_WATCHDOG, PSERIES_WDTF_OP_STOP, pw->num);
+ if (rc != H_SUCCESS && rc != H_NOOP) {
+ dev_crit(dev, "H_WATCHDOG: %ld: failed to stop timer %lu",
+ rc, pw->num);
+ return -EIO;
+ }
+ return 0;
+}
+
+static struct watchdog_info pseries_wdt_info = {
+ .identity = DRV_NAME,
+ .options = WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT
+ | WDIOF_PRETIMEOUT,
+};
+
+static const struct watchdog_ops pseries_wdt_ops = {
+ .owner = THIS_MODULE,
+ .start = pseries_wdt_start,
+ .stop = pseries_wdt_stop,
+};
+
+static int pseries_wdt_probe(struct platform_device *pdev)
+{
+ unsigned long ret[PLPAR_HCALL_BUFSIZE] = { 0 };
+ struct pseries_wdt *pw;
+ unsigned long cap;
+ long msecs, rc;
+ int err;
+
+ rc = plpar_hcall(H_WATCHDOG, ret, PSERIES_WDTF_OP_QUERY);
+ if (rc == H_FUNCTION)
+ return -ENODEV;
+ if (rc != H_SUCCESS)
+ return -EIO;
+ cap = ret[0];
+
+ pw = devm_kzalloc(&pdev->dev, sizeof(*pw), GFP_KERNEL);
+ if (!pw)
+ return -ENOMEM;
+
+ /*
+ * Assume watchdogNumber 1 for now. If we ever support
+ * multiple timers we will need to devise a way to choose a
+ * distinct watchdogNumber for each platform device at device
+ * registration time.
+ */
+ pw->num = 1;
+ if (PSERIES_WDTQ_MAX_NUMBER(cap) < pw->num)
+ return -ENODEV;
+
+ if (action >= ARRAY_SIZE(pseries_wdt_action))
+ return -EINVAL;
+ pw->action = pseries_wdt_action[action];
+
+ pw->wd.parent = &pdev->dev;
+ pw->wd.info = &pseries_wdt_info;
+ pw->wd.ops = &pseries_wdt_ops;
+ msecs = PSERIES_WDTQ_MIN_TIMEOUT(cap);
+ pw->wd.min_timeout = DIV_ROUND_UP(msecs, MSEC_PER_SEC);
+ pw->wd.max_timeout = UINT_MAX / 1000; /* from linux/watchdog.h */
+ pw->wd.timeout = timeout;
+ if (watchdog_init_timeout(&pw->wd, 0, NULL))
+ return -EINVAL;
+ watchdog_set_nowayout(&pw->wd, nowayout);
+ watchdog_stop_on_reboot(&pw->wd);
+ watchdog_stop_on_unregister(&pw->wd);
+ watchdog_set_drvdata(&pw->wd, pw);
+
+ err = devm_watchdog_register_device(&pdev->dev, &pw->wd);
+ if (err)
+ return err;
+
+ platform_set_drvdata(pdev, &pw->wd);
+
+ return 0;
+}
+
+static int pseries_wdt_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct watchdog_device *wd = platform_get_drvdata(pdev);
+
+ if (watchdog_active(wd))
+ return pseries_wdt_stop(wd);
+ return 0;
+}
+
+static int pseries_wdt_resume(struct platform_device *pdev)
+{
+ struct watchdog_device *wd = platform_get_drvdata(pdev);
+
+ if (watchdog_active(wd))
+ return pseries_wdt_start(wd);
+ return 0;
+}
+
+static const struct platform_device_id pseries_wdt_id[] = {
+ { .name = "pseries-wdt" },
+ {}
+};
+MODULE_DEVICE_TABLE(platform, pseries_wdt_id);
+
+static struct platform_driver pseries_wdt_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ },
+ .id_table = pseries_wdt_id,
+ .probe = pseries_wdt_probe,
+ .resume = pseries_wdt_resume,
+ .suspend = pseries_wdt_suspend,
+};
+module_platform_driver(pseries_wdt_driver);
+
+MODULE_AUTHOR("Alexey Kardashevskiy");
+MODULE_AUTHOR("Scott Cheloha");
+MODULE_DESCRIPTION("POWER Architecture Platform Watchdog Driver");
+MODULE_LICENSE("GPL");