hwmon: (coretemp) fix section mismatch warning

[firefly-linux-kernel-4.4.55.git] / drivers / hwmon / coretemp.c

diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 7c1795225b06587def9fae2bd370641ff29a5731..cbd047eac5b408eec796d819fb41c86ad7ddca33 100644 (file)
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -38,7 +38,8 @@
 
 #define DRVNAME        "coretemp"
 
-typedef enum { SHOW_TEMP, SHOW_TJMAX, SHOW_LABEL, SHOW_NAME } SHOW;
+typedef enum { SHOW_TEMP, SHOW_TJMAX, SHOW_TTARGET, SHOW_LABEL,
+               SHOW_NAME } SHOW;
 
 /*
  * Functions declaration
@@ -47,7 +48,7 @@ typedef enum { SHOW_TEMP, SHOW_TJMAX, SHOW_LABEL, SHOW_NAME } SHOW;
 static struct coretemp_data *coretemp_update_device(struct device *dev);
 
 struct coretemp_data {
-       struct class_device *class_dev;
+       struct device *hwmon_dev;
        struct mutex update_lock;
        const char *name;
        u32 id;
@@ -55,11 +56,10 @@ struct coretemp_data {
        unsigned long last_updated;     /* in jiffies */
        int temp;
        int tjmax;
+       int ttarget;
        u8 alarm;
 };
 
-static struct coretemp_data *coretemp_update_device(struct device *dev);
-
 /*
  * Sysfs stuff
  */
@@ -95,9 +95,10 @@ static ssize_t show_temp(struct device *dev,
 
        if (attr->index == SHOW_TEMP)
                err = data->valid ? sprintf(buf, "%d\n", data->temp) : -EAGAIN;
-       else
+       else if (attr->index == SHOW_TJMAX)
                err = sprintf(buf, "%d\n", data->tjmax);
-
+       else
+               err = sprintf(buf, "%d\n", data->ttarget);
        return err;
 }
 
@@ -105,6 +106,8 @@ static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL,
                          SHOW_TEMP);
 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp, NULL,
                          SHOW_TJMAX);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, NULL,
+                         SHOW_TTARGET);
 static DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL);
 static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, show_name, NULL, SHOW_LABEL);
 static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, SHOW_NAME);
@@ -152,7 +155,7 @@ static struct coretemp_data *coretemp_update_device(struct device *dev)
 static int __devinit coretemp_probe(struct platform_device *pdev)
 {
        struct coretemp_data *data;
-       struct cpuinfo_x86 *c = &(cpu_data)[pdev->id];
+       struct cpuinfo_x86 *c = &cpu_data(pdev->id);
        int err;
        u32 eax, edx;
 
@@ -225,12 +228,30 @@ static int __devinit coretemp_probe(struct platform_device *pdev)
 
        platform_set_drvdata(pdev, data);
 
+       /* read the still undocumented IA32_TEMPERATURE_TARGET it exists
+          on older CPUs but not in this register */
+
+       if (c->x86_model > 0xe) {
+               err = rdmsr_safe_on_cpu(data->id, 0x1a2, &eax, &edx);
+               if (err) {
+                       dev_warn(&pdev->dev, "Unable to read"
+                                       " IA32_TEMPERATURE_TARGET MSR\n");
+               } else {
+                       data->ttarget = data->tjmax -
+                                       (((eax >> 8) & 0xff) * 1000);
+                       err = device_create_file(&pdev->dev,
+                                       &sensor_dev_attr_temp1_max.dev_attr);
+                       if (err)
+                               goto exit_free;
+               }
+       }
+
        if ((err = sysfs_create_group(&pdev->dev.kobj, &coretemp_group)))
-               goto exit_free;
+               goto exit_dev;
 
-       data->class_dev = hwmon_device_register(&pdev->dev);
-       if (IS_ERR(data->class_dev)) {
-               err = PTR_ERR(data->class_dev);
+       data->hwmon_dev = hwmon_device_register(&pdev->dev);
+       if (IS_ERR(data->hwmon_dev)) {
+               err = PTR_ERR(data->hwmon_dev);
                dev_err(&pdev->dev, "Class registration failed (%d)\n",
                        err);
                goto exit_class;
@@ -240,6 +261,8 @@ static int __devinit coretemp_probe(struct platform_device *pdev)
 
 exit_class:
        sysfs_remove_group(&pdev->dev.kobj, &coretemp_group);
+exit_dev:
+       device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
 exit_free:
        kfree(data);
 exit:
@@ -250,8 +273,9 @@ static int __devexit coretemp_remove(struct platform_device *pdev)
 {
        struct coretemp_data *data = platform_get_drvdata(pdev);
 
-       hwmon_device_unregister(data->class_dev);
+       hwmon_device_unregister(data->hwmon_dev);
        sysfs_remove_group(&pdev->dev.kobj, &coretemp_group);
+       device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
        platform_set_drvdata(pdev, NULL);
        kfree(data);
        return 0;
@@ -332,25 +356,24 @@ static void coretemp_device_remove(unsigned int cpu)
        mutex_unlock(&pdev_list_mutex);
 }
 
-static int coretemp_cpu_callback(struct notifier_block *nfb,
+static int __cpuinit coretemp_cpu_callback(struct notifier_block *nfb,
                                 unsigned long action, void *hcpu)
 {
        unsigned int cpu = (unsigned long) hcpu;
 
        switch (action) {
        case CPU_ONLINE:
-       case CPU_ONLINE_FROZEN:
+       case CPU_DOWN_FAILED:
                coretemp_device_add(cpu);
                break;
-       case CPU_DEAD:
-       case CPU_DEAD_FROZEN:
+       case CPU_DOWN_PREPARE:
                coretemp_device_remove(cpu);
                break;
        }
        return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata coretemp_cpu_notifier = {
+static struct notifier_block coretemp_cpu_notifier __refdata = {
        .notifier_call = coretemp_cpu_callback,
 };
 #endif                         /* !CONFIG_HOTPLUG_CPU */
@@ -361,7 +384,7 @@ static int __init coretemp_init(void)
        struct pdev_entry *p, *n;
 
        /* quick check if we run Intel */
-       if (cpu_data[0].x86_vendor != X86_VENDOR_INTEL)
+       if (cpu_data(0).x86_vendor != X86_VENDOR_INTEL)
                goto exit;
 
        err = platform_driver_register(&coretemp_driver);
@@ -369,11 +392,12 @@ static int __init coretemp_init(void)
                goto exit;
 
        for_each_online_cpu(i) {
-               struct cpuinfo_x86 *c = &(cpu_data)[i];
+               struct cpuinfo_x86 *c = &cpu_data(i);
 
-               /* check if family 6, models e, f */
+               /* check if family 6, models e, f, 16 */
                if ((c->cpuid_level < 0) || (c->x86 != 0x6) ||
-                   !((c->x86_model == 0xe) || (c->x86_model == 0xf))) {
+                   !((c->x86_model == 0xe) || (c->x86_model == 0xf) ||
+                       (c->x86_model == 0x16))) {
 
                        /* supported CPU not found, but report the unknown
                           family 6 CPU */