Char / Misc driver fixes for 3.6-rc3

Here are some small misc and w1 driver fixes for 3.6-rc3.  Nothing major, just
 some some bugfixes and a new device id for a w1 driver.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull Char / Misc driver fixes from Greg Kroah-Hartman:
 "Here are some small misc and w1 driver fixes for 3.6-rc3.  Nothing
  major, just some some bugfixes and a new device id for a w1 driver.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'char-misc-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  1-Wire: Add support for the maxim ds1825 temperature sensor
  ti-st: Fix check for pdata->chip_awake function pointer
  mei: add mei_quirk_probe function
  mei: fix device stall after wd is stopped

Documentation/w1/slaves/w1_therm

@@ -3,6 +3,7 @@ Kernel driver w1_therm
 
 Supported chips:
   * Maxim ds18*20 based temperature sensors.
+  * Maxim ds1825 based temperature sensors.
 
 Author: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
 
@@ -15,6 +16,7 @@ supported family codes:
 W1_THERM_DS18S20	0x10
 W1_THERM_DS1822		0x22
 W1_THERM_DS18B20	0x28
+W1_THERM_DS1825		0x3B
 
 Support is provided through the sysfs w1_slave file.  Each open and
 read sequence will initiate a temperature conversion then provide two

drivers/misc/mei/interrupt.c

@@ -1253,7 +1253,7 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 			if (dev->wd_timeout)
 				*slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
 			else
-				*slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
+				*slots -= mei_data2slots(MEI_WD_PARAMS_SIZE);
 		}
 	}
 	if (dev->stop)

drivers/misc/mei/main.c

@@ -924,6 +924,27 @@ static struct miscdevice  mei_misc_device = {
 		.minor = MISC_DYNAMIC_MINOR,
 };
 
+/**
+ * mei_quirk_probe - probe for devices that doesn't valid ME interface
+ * @pdev: PCI device structure
+ * @ent: entry into pci_device_table
+ *
+ * returns true if ME Interface is valid, false otherwise
+ */
+static bool __devinit mei_quirk_probe(struct pci_dev *pdev,
+				const struct pci_device_id *ent)
+{
+	u32 reg;
+	if (ent->device == MEI_DEV_ID_PBG_1) {
+		pci_read_config_dword(pdev, 0x48, &reg);
+		/* make sure that bit 9 is up and bit 10 is down */
+		if ((reg & 0x600) == 0x200) {
+			dev_info(&pdev->dev, "Device doesn't have valid ME Interface\n");
+			return false;
+		}
+	}
+	return true;
+}
 /**
  * mei_probe - Device Initialization Routine
  *
@@ -939,6 +960,12 @@ static int __devinit mei_probe(struct pci_dev *pdev,
 	int err;
 
 	mutex_lock(&mei_mutex);
+
+	if (!mei_quirk_probe(pdev, ent)) {
+		err = -ENODEV;
+		goto end;
+	}
+
 	if (mei_device) {
 		err = -EEXIST;
 		goto end;

drivers/misc/ti-st/st_ll.c

@@ -87,7 +87,7 @@ static void ll_device_want_to_wakeup(struct st_data_s *st_data)
 	/* communicate to platform about chip wakeup */
 	kim_data = st_data->kim_data;
 	pdata = kim_data->kim_pdev->dev.platform_data;
-	if (pdata->chip_asleep)
+	if (pdata->chip_awake)
 		pdata->chip_awake(NULL);
 }
 

drivers/w1/slaves/w1_therm.c

@@ -91,6 +91,11 @@ static struct w1_family w1_therm_family_DS28EA00 = {
 	.fops = &w1_therm_fops,
 };
 
+static struct w1_family w1_therm_family_DS1825 = {
+	.fid = W1_THERM_DS1825,
+	.fops = &w1_therm_fops,
+};
+
 struct w1_therm_family_converter
 {
 	u8			broken;
@@ -120,6 +125,10 @@ static struct w1_therm_family_converter w1_therm_families[] = {
 		.f		= &w1_therm_family_DS28EA00,
 		.convert	= w1_DS18B20_convert_temp
 	},
+	{
+		.f		= &w1_therm_family_DS1825,
+		.convert	= w1_DS18B20_convert_temp
+	}
 };
 
 static inline int w1_DS18B20_convert_temp(u8 rom[9])

drivers/w1/w1_family.h

@@ -39,6 +39,7 @@
 #define W1_EEPROM_DS2431	0x2D
 #define W1_FAMILY_DS2760	0x30
 #define W1_FAMILY_DS2780	0x32
+#define W1_THERM_DS1825		0x3B
 #define W1_FAMILY_DS2781	0x3D
 #define W1_THERM_DS28EA00	0x42