4 files changed, 89 insertions, 10 deletions

diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index bfe49243f38b..1c9410d1822c 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -819,6 +819,7 @@ static const struct parisc_device_id hp_sdc_tbl[] = {
 MODULE_DEVICE_TABLE(parisc, hp_sdc_tbl);
 
 static int __init hp_sdc_init_hppa(struct parisc_device *d);
+static struct delayed_work moduleloader_work;
 
 static struct parisc_driver hp_sdc_driver = {
         .name =         "hp_sdc",
@@ -930,8 +931,15 @@ static int __init hp_sdc_init(void)
 
 #if defined(__hppa__)
 
+static void request_module_delayed(struct work_struct *work)
+{
+        request_module("hp_sdc_mlc");
+}
+
 static int __init hp_sdc_init_hppa(struct parisc_device *d)
 {
+        int ret;
+
         if (!d)
                 return 1;
         if (hp_sdc.dev != NULL)
@@ -944,13 +952,26 @@ static int __init hp_sdc_init_hppa(struct parisc_device *d)
         hp_sdc.data_io          = d->hpa.start + 0x800;
         hp_sdc.status_io        = d->hpa.start + 0x801;
 
-        return hp_sdc_init();
+        INIT_DELAYED_WORK(&moduleloader_work, request_module_delayed);
+
+        ret = hp_sdc_init();
+        /* after sucessfull initialization give SDC some time to settle
+         * and then load the hp_sdc_mlc upper layer driver */
+        if (!ret)
+                schedule_delayed_work(&moduleloader_work,
+                        msecs_to_jiffies(2000));
+
+        return ret;
 }
 
 #endif /* __hppa__ */
 
 static void hp_sdc_exit(void)
 {
+        /* do nothing if we don't have a SDC */
+        if (!hp_sdc.dev)
+                return;
+
         write_lock_irq(&hp_sdc.lock);
 
         /* Turn off all maskable "sub-function" irq's. */
@@ -969,6 +990,7 @@ static void hp_sdc_exit(void)
         tasklet_kill(&hp_sdc.task);
 
 #if defined(__hppa__)
+        cancel_delayed_work_sync(&moduleloader_work);
         if (unregister_parisc_driver(&hp_sdc_driver))
                 printk(KERN_WARNING PREFIX "Error unregistering HP SDC");
 #endif
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 6fa2deff7446..fb8a3cd3ffd0 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -151,6 +151,14 @@ static struct dmi_system_id __initdata i8042_dmi_noloop_table[] = {
                         DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
                 },
         },
+        {
+                .ident = "HP DV9700",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
+                        DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
+                },
+        },
         { }
 };
 
@@ -369,6 +377,24 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
         { }
 };
 
+static struct dmi_system_id __initdata i8042_dmi_reset_table[] = {
+        {
+                .ident = "MSI Wind U-100",
+                .matches = {
+                        DMI_MATCH(DMI_BOARD_NAME, "U-100"),
+                        DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
+                },
+        },
+        {
+                .ident = "LG Electronics X110",
+                .matches = {
+                        DMI_MATCH(DMI_BOARD_NAME, "X110"),
+                        DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
+                },
+        },
+        { }
+};
+
 #ifdef CONFIG_PNP
 static struct dmi_system_id __initdata i8042_dmi_nopnp_table[] = {
         {
@@ -378,6 +404,13 @@ static struct dmi_system_id __initdata i8042_dmi_nopnp_table[] = {
                         DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
                 },
         },
+        {
+                .ident = "MSI Wind U-100",
+                .matches = {
+                        DMI_MATCH(DMI_BOARD_NAME, "U-100"),
+                        DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
+                },
+        },
         { }
 };
 #endif
@@ -690,6 +723,9 @@ static int __init i8042_platform_init(void)
 #endif
 
 #ifdef CONFIG_X86
+        if (dmi_check_system(i8042_dmi_reset_table))
+                i8042_reset = 1;
+
         if (dmi_check_system(i8042_dmi_noloop_table))
                 i8042_noloop = 1;
 
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 170f71ee5772..3cffb704e374 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -712,22 +712,43 @@ static int i8042_controller_check(void)
 static int i8042_controller_selftest(void)
 {
         unsigned char param;
+        int i = 0;
 
         if (!i8042_reset)
                 return 0;
 
-        if (i8042_command(&param, I8042_CMD_CTL_TEST)) {
-                printk(KERN_ERR "i8042.c: i8042 controller self test timeout.\n");
-                return -ENODEV;
-        }
+        /*
+         * We try this 5 times; on some really fragile systems this does not
+         * take the first time...
+         */
+        do {
+
+                if (i8042_command(&param, I8042_CMD_CTL_TEST)) {
+                        printk(KERN_ERR "i8042.c: i8042 controller self test timeout.\n");
+                        return -ENODEV;
+                }
+
+                if (param == I8042_RET_CTL_TEST)
+                        return 0;
 
-        if (param != I8042_RET_CTL_TEST) {
                 printk(KERN_ERR "i8042.c: i8042 controller selftest failed. (%#x != %#x)\n",
-                         param, I8042_RET_CTL_TEST);
-                return -EIO;
-        }
+                        param, I8042_RET_CTL_TEST);
+                msleep(50);
+        } while (i++ < 5);
 
+#ifdef CONFIG_X86
+        /*
+         * On x86, we don't fail entire i8042 initialization if controller
+         * reset fails in hopes that keyboard port will still be functional
+         * and user will still get a working keyboard. This is especially
+         * important on netbooks. On other arches we trust hardware more.
+         */
+        printk(KERN_INFO
+                "i8042: giving up on controller selftest, continuing anyway...\n");
         return 0;
+#else
+        return -EIO;
+#endif
 }
 
 /*
diff --git a/drivers/input/serio/sa1111ps2.c b/drivers/input/serio/sa1111ps2.c
index 57953c0eb82f..f412c69478a8 100644
--- a/drivers/input/serio/sa1111ps2.c
+++ b/drivers/input/serio/sa1111ps2.c
@@ -77,7 +77,7 @@ static irqreturn_t ps2_txint(int irq, void *dev_id)
         spin_lock(&ps2if->lock);
         status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
         if (ps2if->head == ps2if->tail) {
-                disable_irq(irq);
+                disable_irq_nosync(irq);
                 /* done */
         } else if (status & PS2STAT_TXE) {
                 sa1111_writel(ps2if->buf[ps2if->tail], ps2if->base + SA1111_PS2DATA);