8 files changed, 47 insertions, 31 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 089c6f5b24de..d6d44946a283 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -286,7 +286,10 @@ config I2C_PARPORT
           This driver is a replacement for (and was inspired by) an older
           driver named i2c-philips-par.  The new driver supports more devices,
           and makes it easier to add support for new devices.
-          
+
+          An adapter type parameter is now mandatory.  Please read the file
+          Documentation/i2c/busses/i2c-parport for details.
+
           Another driver exists, named i2c-parport-light, which doesn't depend
           on the parport driver.  This is meant for embedded systems. Don't say
           Y here if you intend to say Y or M there.
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 8e0f3158215f..dfca74933625 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -478,6 +478,11 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr,
                 ret = i801_transaction();
         }
 
+        /* Some BIOSes don't like it when PEC is enabled at reboot or resume
+           time, so we forcibly disable it after every transaction. */
+        if (hwpec)
+                outb_p(0, SMBAUXCTL);
+
         if(block)
                 return ret;
         if(ret)
diff --git a/drivers/i2c/busses/i2c-parport-light.c b/drivers/i2c/busses/i2c-parport-light.c
index c63025a4c861..e09ebbb2f9f0 100644
--- a/drivers/i2c/busses/i2c-parport-light.c
+++ b/drivers/i2c/busses/i2c-parport-light.c
@@ -121,9 +121,14 @@ static struct i2c_adapter parport_adapter = {
 
 static int __init i2c_parport_init(void)
 {
-        if (type < 0 || type >= ARRAY_SIZE(adapter_parm)) {
+        if (type < 0) {
+                printk(KERN_WARNING "i2c-parport: adapter type unspecified\n");
+                return -ENODEV;
+        }
+
+        if (type >= ARRAY_SIZE(adapter_parm)) {
                 printk(KERN_WARNING "i2c-parport: invalid type (%d)\n", type);
-                type = 0;
+                return -ENODEV;
         }
 
         if (base == 0) {
diff --git a/drivers/i2c/busses/i2c-parport.c b/drivers/i2c/busses/i2c-parport.c
index 7e2e8cd1c14a..934bd55bae15 100644
--- a/drivers/i2c/busses/i2c-parport.c
+++ b/drivers/i2c/busses/i2c-parport.c
@@ -241,9 +241,14 @@ static struct parport_driver i2c_parport_driver = {
 
 static int __init i2c_parport_init(void)
 {
-        if (type < 0 || type >= ARRAY_SIZE(adapter_parm)) {
+        if (type < 0) {
+                printk(KERN_WARNING "i2c-parport: adapter type unspecified\n");
+                return -ENODEV;
+        }
+
+        if (type >= ARRAY_SIZE(adapter_parm)) {
                 printk(KERN_WARNING "i2c-parport: invalid type (%d)\n", type);
-                type = 0;
+                return -ENODEV;
         }
 
         return parport_register_driver(&i2c_parport_driver);
diff --git a/drivers/i2c/busses/i2c-parport.h b/drivers/i2c/busses/i2c-parport.h
index d702e5e0388d..9ddd816d5d0f 100644
--- a/drivers/i2c/busses/i2c-parport.h
+++ b/drivers/i2c/busses/i2c-parport.h
@@ -90,7 +90,7 @@ static struct adapter_parm adapter_parm[] = {
         },
 };
 
-static int type;
+static int type = -1;
 module_param(type, int, 0);
 MODULE_PARM_DESC(type,
         "Type of adapter:\n"
diff --git a/drivers/i2c/busses/i2c-sis96x.c b/drivers/i2c/busses/i2c-sis96x.c
index 3024907cdafe..1a73c0532fc7 100644
--- a/drivers/i2c/busses/i2c-sis96x.c
+++ b/drivers/i2c/busses/i2c-sis96x.c
@@ -43,13 +43,6 @@
 #include <linux/init.h>
 #include <asm/io.h>
 
-/*
-        HISTORY:
-        2003-05-11      1.0.0   Updated from lm_sensors project for kernel 2.5
-                                (was i2c-sis645.c from lm_sensors 2.7.0)
-*/
-#define SIS96x_VERSION "1.0.0"
-
 /* base address register in PCI config space */
 #define SIS96x_BAR 0x04
 
@@ -337,7 +330,6 @@ static struct pci_driver sis96x_driver = {
 
 static int __init i2c_sis96x_init(void)
 {
-        printk(KERN_INFO "i2c-sis96x version %s\n", SIS96x_VERSION);
         return pci_register_driver(&sis96x_driver);
 }
 
diff --git a/drivers/i2c/chips/ds1374.c b/drivers/i2c/chips/ds1374.c
index 03d09ed5ec2c..4630f1969a09 100644
--- a/drivers/i2c/chips/ds1374.c
+++ b/drivers/i2c/chips/ds1374.c
@@ -27,6 +27,7 @@
 #include <linux/rtc.h>
 #include <linux/bcd.h>
 #include <linux/mutex.h>
+#include <linux/workqueue.h>
 
 #define DS1374_REG_TOD0         0x00
 #define DS1374_REG_TOD1         0x01
@@ -139,7 +140,7 @@ ulong ds1374_get_rtc_time(void)
         return t1;
 }
 
-static void ds1374_set_tlet(ulong arg)
+static void ds1374_set_work(void *arg)
 {
         ulong t1, t2;
         int limit = 10;         /* arbitrary retry limit */
@@ -168,17 +169,18 @@ static void ds1374_set_tlet(ulong arg)
 
 static ulong new_time;
 
-static DECLARE_TASKLET_DISABLED(ds1374_tasklet, ds1374_set_tlet,
-                                (ulong) & new_time);
+static struct workqueue_struct *ds1374_workqueue;
+
+static DECLARE_WORK(ds1374_work, ds1374_set_work, &new_time);
 
 int ds1374_set_rtc_time(ulong nowtime)
 {
         new_time = nowtime;
 
         if (in_interrupt())
-                tasklet_schedule(&ds1374_tasklet);
+                queue_work(ds1374_workqueue, &ds1374_work);
         else
-                ds1374_set_tlet((ulong) & new_time);
+                ds1374_set_work(&new_time);
 
         return 0;
 }
@@ -204,6 +206,8 @@ static int ds1374_probe(struct i2c_adapter *adap, int addr, int kind)
         client->adapter = adap;
         client->driver = &ds1374_driver;
 
+        ds1374_workqueue = create_singlethread_workqueue("ds1374");
+
         if ((rc = i2c_attach_client(client)) != 0) {
                 kfree(client);
                 return rc;
@@ -227,7 +231,7 @@ static int ds1374_detach(struct i2c_client *client)
 
         if ((rc = i2c_detach_client(client)) == 0) {
                 kfree(i2c_get_clientdata(client));
-                tasklet_kill(&ds1374_tasklet);
+                destroy_workqueue(ds1374_workqueue);
         }
         return rc;
 }
diff --git a/drivers/i2c/chips/m41t00.c b/drivers/i2c/chips/m41t00.c
index b5aabe7cf792..99ab4ec34390 100644
--- a/drivers/i2c/chips/m41t00.c
+++ b/drivers/i2c/chips/m41t00.c
@@ -25,6 +25,7 @@
 #include <linux/rtc.h>
 #include <linux/bcd.h>
 #include <linux/mutex.h>
+#include <linux/workqueue.h>
 
 #include <asm/time.h>
 #include <asm/rtc.h>
@@ -111,7 +112,7 @@ m41t00_get_rtc_time(void)
 }
 
 static void
-m41t00_set_tlet(ulong arg)
+m41t00_set(void *arg)
 {
         struct rtc_time tm;
         ulong   nowtime = *(ulong *)arg;
@@ -130,13 +131,13 @@ m41t00_set_tlet(ulong arg)
         if ((i2c_smbus_write_byte_data(save_client, 0, tm.tm_sec & 0x7f) < 0)
                 || (i2c_smbus_write_byte_data(save_client, 1, tm.tm_min & 0x7f)
                         < 0)
-                || (i2c_smbus_write_byte_data(save_client, 2, tm.tm_hour & 0x7f)
+                || (i2c_smbus_write_byte_data(save_client, 2, tm.tm_hour & 0x3f)
                         < 0)
-                || (i2c_smbus_write_byte_data(save_client, 4, tm.tm_mday & 0x7f)
+                || (i2c_smbus_write_byte_data(save_client, 4, tm.tm_mday & 0x3f)
                         < 0)
-                || (i2c_smbus_write_byte_data(save_client, 5, tm.tm_mon & 0x7f)
+                || (i2c_smbus_write_byte_data(save_client, 5, tm.tm_mon & 0x1f)
                         < 0)
-                || (i2c_smbus_write_byte_data(save_client, 6, tm.tm_year & 0x7f)
+                || (i2c_smbus_write_byte_data(save_client, 6, tm.tm_year & 0xff)
                         < 0))
 
                 dev_warn(&save_client->dev,"m41t00: can't write to rtc chip\n");
@@ -145,9 +146,9 @@ m41t00_set_tlet(ulong arg)
         return;
 }
 
-static ulong    new_time;
-
-DECLARE_TASKLET_DISABLED(m41t00_tasklet, m41t00_set_tlet, (ulong)&new_time);
+static ulong new_time;
+static struct workqueue_struct *m41t00_wq;
+static DECLARE_WORK(m41t00_work, m41t00_set, &new_time);
 
 int
 m41t00_set_rtc_time(ulong nowtime)
@@ -155,9 +156,9 @@ m41t00_set_rtc_time(ulong nowtime)
         new_time = nowtime;
 
         if (in_interrupt())
-                tasklet_schedule(&m41t00_tasklet);
+                queue_work(m41t00_wq, &m41t00_work);
         else
-                m41t00_set_tlet((ulong)&new_time);
+                m41t00_set(&new_time);
 
         return 0;
 }
@@ -189,6 +190,7 @@ m41t00_probe(struct i2c_adapter *adap, int addr, int kind)
                 return rc;
         }
 
+        m41t00_wq = create_singlethread_workqueue("m41t00");
         save_client = client;
         return 0;
 }
@@ -206,7 +208,7 @@ m41t00_detach(struct i2c_client *client)
 
         if ((rc = i2c_detach_client(client)) == 0) {
                 kfree(client);
-                tasklet_kill(&m41t00_tasklet);
+                destroy_workqueue(m41t00_wq);
         }
         return rc;
 }