[PATCH 1/2] hwmon/sis5595: Convert to a platform driver

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Hey Jean,

I just noticed this post, and since I've got a crappy motherboard (PCCHIPS) 
with a sis5595 chipset,  which outputs almost only bogus information (wrong 
voltages, no temprature), I am wondering if this patch could fix that,?

I didn't have the time to look deeply into it, but I will within a week or 
so. I will report back with more information as soon as I get the system up 
and (completely) running.
So I'll also test this patch for you, as good as I can get it to work:

==
Problems with  readings:
VCC 2.5V and VCC 3.3V seems to be readed rightly.
The other voltages just don't make sense; i still need to figure them out.
I also get a in4 instead a temp; the docs say this seems to be a BIOS 
"feature". Any way to bypass this?
Fan reading is not working, but neither is it in the bios.

DMI Info
Sys: PCCHIPS-M748LMRT-0000000
Baseboard: PCCHIPS-M748LMRT-1.0

Ivo

----- Original Message ----- 
From: "Jean Delvare" <khali at linux-fr.org>
To: "LM Sensors" <lm-sensors at lm-sensors.org>
Sent: Sunday 3 June 2007 17:42
Subject:  [PATCH 1/2] hwmon/sis5595: Convert to a platform 
driver


> Convert the sis5595 driver from the nonsensical i2c-isa hack to a
> regular platform driver.
>
> Signed-off-by: Jean Delvare <khali at linux-fr.org>
> ---
> Anyone with a SiS5595 chip could please test this patch and the
> following one? Thanks.
>
> drivers/hwmon/Kconfig   |    3
> drivers/hwmon/sis5595.c |  317 
> +++++++++++++++++++++++++----------------------
> 2 files changed, 171 insertions(+), 149 deletions(-)
>
> --- linux-2.6.22-rc3.orig/drivers/hwmon/Kconfig 2007-06-03 
> 17:16:09.000000000 +0200
> +++ linux-2.6.22-rc3/drivers/hwmon/Kconfig 2007-06-03 17:27:34.000000000 
> +0200
> @@ -431,8 +431,7 @@ config SENSORS_PC87427
>
> config SENSORS_SIS5595
>  tristate "Silicon Integrated Systems Corp. SiS5595"
> - depends on I2C && PCI && EXPERIMENTAL
> - select I2C_ISA
> + depends on PCI
>  help
>    If you say yes here you get support for the integrated sensors in
>    SiS5595 South Bridges.
> --- linux-2.6.22-rc3.orig/drivers/hwmon/sis5595.c 2007-06-03 
> 17:16:09.000000000 +0200
> +++ linux-2.6.22-rc3/drivers/hwmon/sis5595.c 2007-06-03 17:33:48.000000000 
> +0200
> @@ -54,8 +54,7 @@
> #include <linux/slab.h>
> #include <linux/ioport.h>
> #include <linux/pci.h>
> -#include <linux/i2c.h>
> -#include <linux/i2c-isa.h>
> +#include <linux/platform_device.h>
> #include <linux/hwmon.h>
> #include <linux/err.h>
> #include <linux/init.h>
> @@ -72,10 +71,7 @@ module_param(force_addr, ushort, 0);
> MODULE_PARM_DESC(force_addr,
>  "Initialize the base address of the sensors");
>
> -/* Device address
> -   Note that we can't determine the ISA address until we have initialized
> -   our module */
> -static unsigned short address;
> +static struct platform_device *pdev;
>
> /* Many SIS5595 constants specified below */
>
> @@ -165,7 +161,8 @@ static inline u8 DIV_TO_REG(int val)
> /* For each registered chip, we need to keep some data in memory.
>    The structure is dynamically allocated. */
> struct sis5595_data {
> - struct i2c_client client;
> + unsigned short addr;
> + const char *name;
>  struct class_device *class_dev;
>  struct mutex lock;
>
> @@ -189,21 +186,21 @@ struct sis5595_data {
>
> static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */
>
> -static int sis5595_detect(struct i2c_adapter *adapter);
> -static int sis5595_detach_client(struct i2c_client *client);
> +static int sis5595_probe(struct platform_device *pdev);
> +static int sis5595_remove(struct platform_device *pdev);
>
> -static int sis5595_read_value(struct i2c_client *client, u8 reg);
> -static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 
> value);
> +static int sis5595_read_value(struct sis5595_data *data, u8 reg);
> +static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 
> value);
> static struct sis5595_data *sis5595_update_device(struct device *dev);
> -static void sis5595_init_client(struct i2c_client *client);
> +static void sis5595_init_device(struct sis5595_data *data);
>
> -static struct i2c_driver sis5595_driver = {
> +static struct platform_driver sis5595_driver = {
>  .driver = {
>  .owner = THIS_MODULE,
>  .name = "sis5595",
>  },
> - .attach_adapter = sis5595_detect,
> - .detach_client = sis5595_detach_client,
> + .probe = sis5595_probe,
> + .remove = __devexit_p(sis5595_remove),
> };
>
> /* 4 Voltages */
> @@ -228,13 +225,12 @@ static ssize_t show_in_max(struct device
> static ssize_t set_in_min(struct device *dev, const char *buf,
>         size_t count, int nr)
> {
> - struct i2c_client *client = to_i2c_client(dev);
> - struct sis5595_data *data = i2c_get_clientdata(client);
> + struct sis5595_data *data = dev_get_drvdata(dev);
>  unsigned long val = simple_strtoul(buf, NULL, 10);
>
>  mutex_lock(&data->update_lock);
>  data->in_min[nr] = IN_TO_REG(val);
> - sis5595_write_value(client, SIS5595_REG_IN_MIN(nr), data->in_min[nr]);
> + sis5595_write_value(data, SIS5595_REG_IN_MIN(nr), data->in_min[nr]);
>  mutex_unlock(&data->update_lock);
>  return count;
> }
> @@ -242,13 +238,12 @@ static ssize_t set_in_min(struct device
> static ssize_t set_in_max(struct device *dev, const char *buf,
>         size_t count, int nr)
> {
> - struct i2c_client *client = to_i2c_client(dev);
> - struct sis5595_data *data = i2c_get_clientdata(client);
> + struct sis5595_data *data = dev_get_drvdata(dev);
>  unsigned long val = simple_strtoul(buf, NULL, 10);
>
>  mutex_lock(&data->update_lock);
>  data->in_max[nr] = IN_TO_REG(val);
> - sis5595_write_value(client, SIS5595_REG_IN_MAX(nr), data->in_max[nr]);
> + sis5595_write_value(data, SIS5595_REG_IN_MAX(nr), data->in_max[nr]);
>  mutex_unlock(&data->update_lock);
>  return count;
> }
> @@ -307,13 +302,12 @@ static ssize_t show_temp_over(struct dev
>
> static ssize_t set_temp_over(struct device *dev, struct device_attribute 
> *attr, const char *buf, size_t count)
> {
> - struct i2c_client *client = to_i2c_client(dev);
> - struct sis5595_data *data = i2c_get_clientdata(client);
> + struct sis5595_data *data = dev_get_drvdata(dev);
>  long val = simple_strtol(buf, NULL, 10);
>
>  mutex_lock(&data->update_lock);
>  data->temp_over = TEMP_TO_REG(val);
> - sis5595_write_value(client, SIS5595_REG_TEMP_OVER, data->temp_over);
> + sis5595_write_value(data, SIS5595_REG_TEMP_OVER, data->temp_over);
>  mutex_unlock(&data->update_lock);
>  return count;
> }
> @@ -326,13 +320,12 @@ static ssize_t show_temp_hyst(struct dev
>
> static ssize_t set_temp_hyst(struct device *dev, struct device_attribute 
> *attr, const char *buf, size_t count)
> {
> - struct i2c_client *client = to_i2c_client(dev);
> - struct sis5595_data *data = i2c_get_clientdata(client);
> + struct sis5595_data *data = dev_get_drvdata(dev);
>  long val = simple_strtol(buf, NULL, 10);
>
>  mutex_lock(&data->update_lock);
>  data->temp_hyst = TEMP_TO_REG(val);
> - sis5595_write_value(client, SIS5595_REG_TEMP_HYST, data->temp_hyst);
> + sis5595_write_value(data, SIS5595_REG_TEMP_HYST, data->temp_hyst);
>  mutex_unlock(&data->update_lock);
>  return count;
> }
> @@ -361,13 +354,12 @@ static ssize_t show_fan_min(struct devic
> static ssize_t set_fan_min(struct device *dev, const char *buf,
>  size_t count, int nr)
> {
> - struct i2c_client *client = to_i2c_client(dev);
> - struct sis5595_data *data = i2c_get_clientdata(client);
> + struct sis5595_data *data = dev_get_drvdata(dev);
>  unsigned long val = simple_strtoul(buf, NULL, 10);
>
>  mutex_lock(&data->update_lock);
>  data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
> - sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
> + sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
>  mutex_unlock(&data->update_lock);
>  return count;
> }
> @@ -385,8 +377,7 @@ static ssize_t show_fan_div(struct devic
> static ssize_t set_fan_div(struct device *dev, const char *buf,
>  size_t count, int nr)
> {
> - struct i2c_client *client = to_i2c_client(dev);
> - struct sis5595_data *data = i2c_get_clientdata(client);
> + struct sis5595_data *data = dev_get_drvdata(dev);
>  unsigned long min;
>  unsigned long val = simple_strtoul(buf, NULL, 10);
>  int reg;
> @@ -394,7 +385,7 @@ static ssize_t set_fan_div(struct device
>  mutex_lock(&data->update_lock);
>  min = FAN_FROM_REG(data->fan_min[nr],
>  DIV_FROM_REG(data->fan_div[nr]));
> - reg = sis5595_read_value(client, SIS5595_REG_FANDIV);
> + reg = sis5595_read_value(data, SIS5595_REG_FANDIV);
>
>  switch (val) {
>  case 1: data->fan_div[nr] = 0; break;
> @@ -402,7 +393,7 @@ static ssize_t set_fan_div(struct device
>  case 4: data->fan_div[nr] = 2; break;
>  case 8: data->fan_div[nr] = 3; break;
>  default:
> - dev_err(&client->dev, "fan_div value %ld not "
> + dev_err(dev, "fan_div value %ld not "
>  "supported. Choose one of 1, 2, 4 or 8!\n", val);
>  mutex_unlock(&data->update_lock);
>  return -EINVAL;
> @@ -416,10 +407,10 @@ static ssize_t set_fan_div(struct device
>  reg = (reg & 0x3f) | (data->fan_div[nr] << 6);
>  break;
>  }
> - sis5595_write_value(client, SIS5595_REG_FANDIV, reg);
> + sis5595_write_value(data, SIS5595_REG_FANDIV, reg);
>  data->fan_min[nr] =
>  FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
> - sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
> + sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
>  mutex_unlock(&data->update_lock);
>  return count;
> }
> @@ -473,6 +464,14 @@ static ssize_t show_alarms(struct device
> }
> static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
>
> +static ssize_t show_name(struct device *dev, struct device_attribute 
> *attr,
> + char *buf)
> +{
> + struct sis5595_data *data = dev_get_drvdata(dev);
> + return sprintf(buf, "%s\n", data->name);
> +}
> +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
> +
> static struct attribute *sis5595_attributes[] = {
>  &dev_attr_in0_input.attr,
>  &dev_attr_in0_min.attr,
> @@ -495,6 +494,7 @@ static struct attribute *sis5595_attribu
>  &dev_attr_fan2_div.attr,
>
>  &dev_attr_alarms.attr,
> + &dev_attr_name.attr,
>  NULL
> };
>
> @@ -518,65 +518,32 @@ static const struct attribute_group sis5
> };
>
> /* This is called when the module is loaded */
> -static int sis5595_detect(struct i2c_adapter *adapter)
> +static int __devinit sis5595_probe(struct platform_device *pdev)
> {
>  int err = 0;
>  int i;
> - struct i2c_client *new_client;
>  struct sis5595_data *data;
> + struct resource *res;
>  char val;
> - u16 a;
>
> - if (force_addr)
> - address = force_addr & ~(SIS5595_EXTENT - 1);
>  /* Reserve the ISA region */
> - if (!request_region(address, SIS5595_EXTENT,
> + res = platform_get_resource(pdev, IORESOURCE_IO, 0);
> + if (!request_region(res->start, SIS5595_EXTENT,
>      sis5595_driver.driver.name)) {
>  err = -EBUSY;
>  goto exit;
>  }
> - if (force_addr) {
> - dev_warn(&adapter->dev, "forcing ISA address 0x%04X\n", address);
> - if (PCIBIOS_SUCCESSFUL !=
> -     pci_write_config_word(s_bridge, SIS5595_BASE_REG, address))
> - goto exit_release;
> - if (PCIBIOS_SUCCESSFUL !=
> -     pci_read_config_word(s_bridge, SIS5595_BASE_REG, &a))
> - goto exit_release;
> - if ((a & ~(SIS5595_EXTENT - 1)) != address)
> - /* doesn't work for some chips? */
> - goto exit_release;
> - }
> -
> - if (PCIBIOS_SUCCESSFUL !=
> -     pci_read_config_byte(s_bridge, SIS5595_ENABLE_REG, &val)) {
> - goto exit_release;
> - }
> - if ((val & 0x80) == 0) {
> - if (PCIBIOS_SUCCESSFUL !=
> -     pci_write_config_byte(s_bridge, SIS5595_ENABLE_REG,
> -   val | 0x80))
> - goto exit_release;
> - if (PCIBIOS_SUCCESSFUL !=
> -     pci_read_config_byte(s_bridge, SIS5595_ENABLE_REG, &val))
> - goto exit_release;
> - if ((val & 0x80) == 0)
> - /* doesn't work for some chips! */
> - goto exit_release;
> - }
>
>  if (!(data = kzalloc(sizeof(struct sis5595_data), GFP_KERNEL))) {
>  err = -ENOMEM;
>  goto exit_release;
>  }
>
> - new_client = &data->client;
> - new_client->addr = address;
>  mutex_init(&data->lock);
> - i2c_set_clientdata(new_client, data);
> - new_client->adapter = adapter;
> - new_client->driver = &sis5595_driver;
> - new_client->flags = 0;
> + mutex_init(&data->update_lock);
> + data->addr = res->start;
> + data->name = "sis5595";
> + platform_set_drvdata(pdev, data);
>
>  /* Check revision and pin registers to determine whether 4 or 5 voltages 
> */
>  pci_read_config_byte(s_bridge, SIS5595_REVISION_REG, &(data->revision));
> @@ -589,47 +556,37 @@ static int sis5595_detect(struct i2c_ada
>  data->maxins = 4;
>  }
>
> - /* Fill in the remaining client fields and put it into the global list 
> */
> - strlcpy(new_client->name, "sis5595", I2C_NAME_SIZE);
> -
> - data->valid = 0;
> - mutex_init(&data->update_lock);
> -
> - /* Tell the I2C layer a new client has arrived */
> - if ((err = i2c_attach_client(new_client)))
> - goto exit_free;
> -
>  /* Initialize the SIS5595 chip */
> - sis5595_init_client(new_client);
> + sis5595_init_device(data);
>
>  /* A few vars need to be filled upon startup */
>  for (i = 0; i < 2; i++) {
> - data->fan_min[i] = sis5595_read_value(new_client,
> + data->fan_min[i] = sis5595_read_value(data,
>  SIS5595_REG_FAN_MIN(i));
>  }
>
>  /* Register sysfs hooks */
> - if ((err = sysfs_create_group(&new_client->dev.kobj, &sis5595_group)))
> - goto exit_detach;
> + if ((err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group)))
> + goto exit_free;
>  if (data->maxins == 4) {
> - if ((err = device_create_file(&new_client->dev,
> + if ((err = device_create_file(&pdev->dev,
>        &dev_attr_in4_input))
> - || (err = device_create_file(&new_client->dev,
> + || (err = device_create_file(&pdev->dev,
>        &dev_attr_in4_min))
> - || (err = device_create_file(&new_client->dev,
> + || (err = device_create_file(&pdev->dev,
>        &dev_attr_in4_max)))
>  goto exit_remove_files;
>  } else {
> - if ((err = device_create_file(&new_client->dev,
> + if ((err = device_create_file(&pdev->dev,
>        &dev_attr_temp1_input))
> - || (err = device_create_file(&new_client->dev,
> + || (err = device_create_file(&pdev->dev,
>        &dev_attr_temp1_max))
> - || (err = device_create_file(&new_client->dev,
> + || (err = device_create_file(&pdev->dev,
>        &dev_attr_temp1_max_hyst)))
>  goto exit_remove_files;
>  }
>
> - data->class_dev = hwmon_device_register(&new_client->dev);
> + data->class_dev = hwmon_device_register(&pdev->dev);
>  if (IS_ERR(data->class_dev)) {
>  err = PTR_ERR(data->class_dev);
>  goto exit_remove_files;
> @@ -638,32 +595,26 @@ static int sis5595_detect(struct i2c_ada
>  return 0;
>
> exit_remove_files:
> - sysfs_remove_group(&new_client->dev.kobj, &sis5595_group);
> - sysfs_remove_group(&new_client->dev.kobj, &sis5595_group_opt);
> -exit_detach:
> - i2c_detach_client(new_client);
> + sysfs_remove_group(&pdev->dev.kobj, &sis5595_group);
> + sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_opt);
> exit_free:
>  kfree(data);
> exit_release:
> - release_region(address, SIS5595_EXTENT);
> + release_region(res->start, SIS5595_EXTENT);
> exit:
>  return err;
> }
>
> -static int sis5595_detach_client(struct i2c_client *client)
> +static int __devexit sis5595_remove(struct platform_device *pdev)
> {
> - struct sis5595_data *data = i2c_get_clientdata(client);
> - int err;
> + struct sis5595_data *data = platform_get_drvdata(pdev);
>
>  hwmon_device_unregister(data->class_dev);
> - sysfs_remove_group(&client->dev.kobj, &sis5595_group);
> - sysfs_remove_group(&client->dev.kobj, &sis5595_group_opt);
> -
> - if ((err = i2c_detach_client(client)))
> - return err;
> -
> - release_region(client->addr, SIS5595_EXTENT);
> + sysfs_remove_group(&pdev->dev.kobj, &sis5595_group);
> + sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_opt);
>
> + release_region(data->addr, SIS5595_EXTENT);
> + platform_set_drvdata(pdev, NULL);
>  kfree(data);
>
>  return 0;
> @@ -671,41 +622,37 @@ static int sis5595_detach_client(struct
>
>
> /* ISA access must be locked explicitly. */
> -static int sis5595_read_value(struct i2c_client *client, u8 reg)
> +static int sis5595_read_value(struct sis5595_data *data, u8 reg)
> {
>  int res;
>
> - struct sis5595_data *data = i2c_get_clientdata(client);
>  mutex_lock(&data->lock);
> - outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
> - res = inb_p(client->addr + SIS5595_DATA_REG_OFFSET);
> + outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET);
> + res = inb_p(data->addr + SIS5595_DATA_REG_OFFSET);
>  mutex_unlock(&data->lock);
>  return res;
> }
>
> -static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 
> value)
> +static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 
> value)
> {
> - struct sis5595_data *data = i2c_get_clientdata(client);
>  mutex_lock(&data->lock);
> - outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
> - outb_p(value, client->addr + SIS5595_DATA_REG_OFFSET);
> + outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET);
> + outb_p(value, data->addr + SIS5595_DATA_REG_OFFSET);
>  mutex_unlock(&data->lock);
> - return 0;
> }
>
> /* Called when we have found a new SIS5595. */
> -static void sis5595_init_client(struct i2c_client *client)
> +static void __devinit sis5595_init_device(struct sis5595_data *data)
> {
> - u8 config = sis5595_read_value(client, SIS5595_REG_CONFIG);
> + u8 config = sis5595_read_value(data, SIS5595_REG_CONFIG);
>  if (!(config & 0x01))
> - sis5595_write_value(client, SIS5595_REG_CONFIG,
> + sis5595_write_value(data, SIS5595_REG_CONFIG,
>  (config & 0xf7) | 0x01);
> }
>
> static struct sis5595_data *sis5595_update_device(struct device *dev)
> {
> - struct i2c_client *client = to_i2c_client(dev);
> - struct sis5595_data *data = i2c_get_clientdata(client);
> + struct sis5595_data *data = dev_get_drvdata(dev);
>  int i;
>
>  mutex_lock(&data->update_lock);
> @@ -715,35 +662,35 @@ static struct sis5595_data *sis5595_upda
>
>  for (i = 0; i <= data->maxins; i++) {
>  data->in[i] =
> -     sis5595_read_value(client, SIS5595_REG_IN(i));
> +     sis5595_read_value(data, SIS5595_REG_IN(i));
>  data->in_min[i] =
> -     sis5595_read_value(client,
> +     sis5595_read_value(data,
>         SIS5595_REG_IN_MIN(i));
>  data->in_max[i] =
> -     sis5595_read_value(client,
> +     sis5595_read_value(data,
>         SIS5595_REG_IN_MAX(i));
>  }
>  for (i = 0; i < 2; i++) {
>  data->fan[i] =
> -     sis5595_read_value(client, SIS5595_REG_FAN(i));
> +     sis5595_read_value(data, SIS5595_REG_FAN(i));
>  data->fan_min[i] =
> -     sis5595_read_value(client,
> +     sis5595_read_value(data,
>         SIS5595_REG_FAN_MIN(i));
>  }
>  if (data->maxins == 3) {
>  data->temp =
> -     sis5595_read_value(client, SIS5595_REG_TEMP);
> +     sis5595_read_value(data, SIS5595_REG_TEMP);
>  data->temp_over =
> -     sis5595_read_value(client, SIS5595_REG_TEMP_OVER);
> +     sis5595_read_value(data, SIS5595_REG_TEMP_OVER);
>  data->temp_hyst =
> -     sis5595_read_value(client, SIS5595_REG_TEMP_HYST);
> +     sis5595_read_value(data, SIS5595_REG_TEMP_HYST);
>  }
> - i = sis5595_read_value(client, SIS5595_REG_FANDIV);
> + i = sis5595_read_value(data, SIS5595_REG_FANDIV);
>  data->fan_div[0] = (i >> 4) & 0x03;
>  data->fan_div[1] = i >> 6;
>  data->alarms =
> -     sis5595_read_value(client, SIS5595_REG_ALARM1) |
> -     (sis5595_read_value(client, SIS5595_REG_ALARM2) << 8);
> +     sis5595_read_value(data, SIS5595_REG_ALARM1) |
> +     (sis5595_read_value(data, SIS5595_REG_ALARM2) << 8);
>  data->last_updated = jiffies;
>  data->valid = 1;
>  }
> @@ -774,10 +721,50 @@ static int blacklist[] __devinitdata = {
>  PCI_DEVICE_ID_SI_5598,
>  0 };
>
> +static int __devinit sis5595_device_add(unsigned short address)
> +{
> + struct resource res = {
> + .start = address,
> + .end = address + SIS5595_EXTENT - 1,
> + .name = "sis5595",
> + .flags = IORESOURCE_IO,
> + };
> + int err;
> +
> + pdev = platform_device_alloc("sis5595", address);
> + if (!pdev) {
> + err = -ENOMEM;
> + printk(KERN_ERR "sis5595: Device allocation failed\n");
> + goto exit;
> + }
> +
> + err = platform_device_add_resources(pdev, &res, 1);
> + if (err) {
> + printk(KERN_ERR "sis5595: Device resource addition failed "
> +        "(%d)\n", err);
> + goto exit_device_put;
> + }
> +
> + err = platform_device_add(pdev);
> + if (err) {
> + printk(KERN_ERR "sis5595: Device addition failed (%d)\n",
> +        err);
> + goto exit_device_put;
> + }
> +
> + return 0;
> +
> +exit_device_put:
> + platform_device_put(pdev);
> +exit:
> + return err;
> +}
> +
> static int __devinit sis5595_pci_probe(struct pci_dev *dev,
>         const struct pci_device_id *id)
> {
> - u16 val;
> + u16 address;
> + u8 enable;
>  int *i;
>
>  for (i = blacklist; *i != 0; i++) {
> @@ -790,26 +777,61 @@ static int __devinit sis5595_pci_probe(s
>  }
>  }
>
> + force_addr &= ~(SIS5595_EXTENT - 1);
> + if (force_addr) {
> + dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", force_addr);
> + if (PCIBIOS_SUCCESSFUL !=
> +     pci_write_config_word(dev, SIS5595_BASE_REG, force_addr))
> + return -ENODEV;
> + }
> +
>  if (PCIBIOS_SUCCESSFUL !=
> -     pci_read_config_word(dev, SIS5595_BASE_REG, &val))
> +     pci_read_config_word(dev, SIS5595_BASE_REG, &address))
>  return -ENODEV;
>
> - address = val & ~(SIS5595_EXTENT - 1);
> - if (address == 0 && force_addr == 0) {
> + address &= ~(SIS5595_EXTENT - 1);
> + if (!address) {
>  dev_err(&dev->dev, "Base address not set - upgrade BIOS or use 
> force_addr=0xaddr\n");
>  return -ENODEV;
>  }
> + if (force_addr && address != force_addr) {
> + /* doesn't work for some chips? */
> + dev_warn(&dev->dev, "Failed to force ISA address\n");
> + return -ENODEV;
> + }
>
> - s_bridge = pci_dev_get(dev);
> - if (i2c_isa_add_driver(&sis5595_driver)) {
> - pci_dev_put(s_bridge);
> - s_bridge = NULL;
> + if (PCIBIOS_SUCCESSFUL !=
> +     pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) {
> + return -ENODEV;
> + }
> + if (!(enable & 0x80)) {
> + if ((PCIBIOS_SUCCESSFUL !=
> +      pci_write_config_byte(dev, SIS5595_ENABLE_REG,
> +    enable | 0x80))
> + || (PCIBIOS_SUCCESSFUL !=
> +      pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable))
> + || (!(enable & 0x80)))
> + /* doesn't work for some chips! */
> + return -ENODEV;
>  }
>
> + if (platform_driver_register(&sis5595_driver))
> + goto exit;
> +
> + /* Sets global pdev as a side effect */
> + if (sis5595_device_add(address))
> + goto exit_unregister;
> +
>  /* Always return failure here.  This is to allow other drivers to bind
>  * to this pci device.  We don't really want to have control over the
>  * pci device, we only wanted to read as few register values from it.
>  */
> + s_bridge = pci_dev_get(dev);
> + return -ENODEV;
> +
> +exit_unregister:
> + platform_driver_unregister(&sis5595_driver);
> +exit:
>  return -ENODEV;
> }
>
> @@ -828,7 +850,8 @@ static void __exit sm_sis5595_exit(void)
> {
>  pci_unregister_driver(&sis5595_pci_driver);
>  if (s_bridge != NULL) {
> - i2c_isa_del_driver(&sis5595_driver);
> + platform_device_unregister(pdev);
> + platform_driver_unregister(&sis5595_driver);
>  pci_dev_put(s_bridge);
>  s_bridge = NULL;
>  }
>
>
> -- 
> Jean Delvare
>
> _______________________________________________
> lm-sensors mailing list
> lm-sensors at lm-sensors.org
> http://lists.lm-sensors.org/mailman/listinfo/lm-sensors 





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