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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
This commit is contained in:
Linus Torvalds 2012-08-17 10:15:57 -07:00
parent 9134e7d270 f3261dfb55
commit d7d45fedf9
6 changed files with 41 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/w1/slaves/w1_therm
View File

@ -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

2
drivers/misc/mei/interrupt.c
View File

@ -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)

27
drivers/misc/mei/main.c
View File

@ -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;

2
drivers/misc/ti-st/st_ll.c
View File

@ -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);
}

9
drivers/w1/slaves/w1_therm.c
View File

@ -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])

1
drivers/w1/w1_family.h
View File

@ -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