summaryrefslogtreecommitdiffstats
path: root/drivers/platform
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-06 19:54:07 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-06 19:54:07 +0200
commitb62e419707ce082845c34161fe684d0c743b7953 (patch)
tree9ecad0aef86a55ca33a0a355c627ff2b4acc4756 /drivers/platform
parentMerge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm (diff)
parentMIPS: SGI-IP27: always enable NUMA in Kconfig (diff)
downloadlinux-b62e419707ce082845c34161fe684d0c743b7953.tar.xz
linux-b62e419707ce082845c34161fe684d0c743b7953.zip
Merge tag 'mips_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS upates from Thomas Bogendoerfer: - improvements for Loongson64 - extended ingenic support - removal of not maintained paravirt system type - cleanups and fixes * tag 'mips_5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (81 commits) MIPS: SGI-IP27: always enable NUMA in Kconfig MAINTAINERS: Update KVM/MIPS maintainers MIPS: Update default config file for Loongson-3 MIPS: KVM: Add kvm guest support for Loongson-3 dt-bindings: mips: Document Loongson kvm guest board MIPS: handle Loongson-specific GSExc exception MIPS: add definitions for Loongson-specific CP0.Diag1 register MIPS: only register FTLBPar exception handler for supported models MIPS: ingenic: Hardcode mem size for qi,lb60 board MIPS: DTS: ingenic/qi,lb60: Add model and memory node MIPS: ingenic: Use fw_passed_dtb even if CONFIG_BUILTIN_DTB MIPS: head.S: Init fw_passed_dtb to builtin DTB of: address: Fix parser address/size cells initialization of_address: Guard of_bus_pci_get_flags with CONFIG_PCI MIPS: DTS: Fix number of msi vectors for Loongson64G MIPS: Loongson64: Add ISA node for LS7A PCH MIPS: Loongson64: DTS: Fix ISA and PCI I/O ranges for RS780E PCH MIPS: Loongson64: Enlarge IO_SPACE_LIMIT MIPS: Loongson64: Process ISA Node in DeviceTree of_address: Add bus type match for pci ranges parser ...
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/mips/cpu_hwmon.c66
-rw-r--r--drivers/platform/mips/rs780e-acpi.c2
2 files changed, 26 insertions, 42 deletions
diff --git a/drivers/platform/mips/cpu_hwmon.c b/drivers/platform/mips/cpu_hwmon.c
index 0d27cb7a9e3c..386389ffec41 100644
--- a/drivers/platform/mips/cpu_hwmon.c
+++ b/drivers/platform/mips/cpu_hwmon.c
@@ -11,7 +11,7 @@
#include <loongson_hwmon.h>
#include <loongson_regs.h>
-static int csr_temp_enable = 0;
+static int csr_temp_enable;
/*
* Loongson-3 series cpu has two sensors inside,
@@ -44,7 +44,7 @@ int loongson3_cpu_temp(int cpu)
case PRID_REV_LOONGSON3A_R3_0:
case PRID_REV_LOONGSON3A_R3_1:
default:
- reg = (reg & 0xffff)*731/0x4000 - 273;
+ reg = (reg & 0xffff) * 731 / 0x4000 - 273;
break;
}
@@ -55,9 +55,7 @@ out:
static int nr_packages;
static struct device *cpu_hwmon_dev;
-static ssize_t get_hwmon_name(struct device *dev,
- struct device_attribute *attr, char *buf);
-static SENSOR_DEVICE_ATTR(name, S_IRUGO, get_hwmon_name, NULL, 0);
+static SENSOR_DEVICE_ATTR(name, 0444, NULL, NULL, 0);
static struct attribute *cpu_hwmon_attributes[] = {
&sensor_dev_attr_name.dev_attr.attr,
@@ -69,26 +67,19 @@ static struct attribute_group cpu_hwmon_attribute_group = {
.attrs = cpu_hwmon_attributes,
};
-/* Hwmon device get name */
-static ssize_t get_hwmon_name(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "cpu-hwmon\n");
-}
-
static ssize_t get_cpu_temp(struct device *dev,
struct device_attribute *attr, char *buf);
static ssize_t cpu_temp_label(struct device *dev,
struct device_attribute *attr, char *buf);
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_cpu_temp, NULL, 1);
-static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, cpu_temp_label, NULL, 1);
-static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, get_cpu_temp, NULL, 2);
-static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, cpu_temp_label, NULL, 2);
-static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, get_cpu_temp, NULL, 3);
-static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, cpu_temp_label, NULL, 3);
-static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, get_cpu_temp, NULL, 4);
-static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, cpu_temp_label, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp1_input, 0444, get_cpu_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp1_label, 0444, cpu_temp_label, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_input, 0444, get_cpu_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_label, 0444, cpu_temp_label, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_input, 0444, get_cpu_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp3_label, 0444, cpu_temp_label, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp4_input, 0444, get_cpu_temp, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp4_label, 0444, cpu_temp_label, NULL, 4);
static const struct attribute *hwmon_cputemp[4][3] = {
{
@@ -117,6 +108,7 @@ static ssize_t cpu_temp_label(struct device *dev,
struct device_attribute *attr, char *buf)
{
int id = (to_sensor_dev_attr(attr))->index - 1;
+
return sprintf(buf, "CPU %d Temperature\n", id);
}
@@ -125,6 +117,7 @@ static ssize_t get_cpu_temp(struct device *dev,
{
int id = (to_sensor_dev_attr(attr))->index - 1;
int value = loongson3_cpu_temp(id);
+
return sprintf(buf, "%d\n", value);
}
@@ -132,7 +125,7 @@ static int create_sysfs_cputemp_files(struct kobject *kobj)
{
int i, ret = 0;
- for (i=0; i<nr_packages; i++)
+ for (i = 0; i < nr_packages; i++)
ret = sysfs_create_files(kobj, hwmon_cputemp[i]);
return ret;
@@ -142,7 +135,7 @@ static void remove_sysfs_cputemp_files(struct kobject *kobj)
{
int i;
- for (i=0; i<nr_packages; i++)
+ for (i = 0; i < nr_packages; i++)
sysfs_remove_files(kobj, hwmon_cputemp[i]);
}
@@ -151,18 +144,17 @@ static struct delayed_work thermal_work;
static void do_thermal_timer(struct work_struct *work)
{
- int i, value, temp_max = 0;
+ int i, value;
- for (i=0; i<nr_packages; i++) {
+ for (i = 0; i < nr_packages; i++) {
value = loongson3_cpu_temp(i);
- if (value > temp_max)
- temp_max = value;
+ if (value > CPU_THERMAL_THRESHOLD) {
+ pr_emerg("Power off due to high temp: %d\n", value);
+ orderly_poweroff(true);
+ }
}
- if (temp_max <= CPU_THERMAL_THRESHOLD)
- schedule_delayed_work(&thermal_work, msecs_to_jiffies(5000));
- else
- orderly_poweroff(true);
+ schedule_delayed_work(&thermal_work, msecs_to_jiffies(5000));
}
static int __init loongson_hwmon_init(void)
@@ -172,9 +164,10 @@ static int __init loongson_hwmon_init(void)
pr_info("Loongson Hwmon Enter...\n");
if (cpu_has_csr())
- csr_temp_enable = csr_readl(LOONGSON_CSR_FEATURES) & LOONGSON_CSRF_TEMP;
+ csr_temp_enable = csr_readl(LOONGSON_CSR_FEATURES) &
+ LOONGSON_CSRF_TEMP;
- cpu_hwmon_dev = hwmon_device_register(NULL);
+ cpu_hwmon_dev = hwmon_device_register_with_info(NULL, "cpu_hwmon", NULL, NULL, NULL);
if (IS_ERR(cpu_hwmon_dev)) {
ret = PTR_ERR(cpu_hwmon_dev);
pr_err("hwmon_device_register fail!\n");
@@ -184,13 +177,6 @@ static int __init loongson_hwmon_init(void)
nr_packages = loongson_sysconf.nr_cpus /
loongson_sysconf.cores_per_package;
- ret = sysfs_create_group(&cpu_hwmon_dev->kobj,
- &cpu_hwmon_attribute_group);
- if (ret) {
- pr_err("fail to create loongson hwmon!\n");
- goto fail_sysfs_create_group_hwmon;
- }
-
ret = create_sysfs_cputemp_files(&cpu_hwmon_dev->kobj);
if (ret) {
pr_err("fail to create cpu temperature interface!\n");
@@ -205,8 +191,6 @@ static int __init loongson_hwmon_init(void)
fail_create_sysfs_cputemp_files:
sysfs_remove_group(&cpu_hwmon_dev->kobj,
&cpu_hwmon_attribute_group);
-
-fail_sysfs_create_group_hwmon:
hwmon_device_unregister(cpu_hwmon_dev);
fail_hwmon_device_register:
diff --git a/drivers/platform/mips/rs780e-acpi.c b/drivers/platform/mips/rs780e-acpi.c
index e5a643b78ac9..bb0e8ae0eefd 100644
--- a/drivers/platform/mips/rs780e-acpi.c
+++ b/drivers/platform/mips/rs780e-acpi.c
@@ -69,7 +69,7 @@ static void acpi_hw_clear_status(void)
outl(inl(ACPI_GPE0_BLK), ACPI_GPE0_BLK);
}
-void acpi_registers_setup(void)
+static void acpi_registers_setup(void)
{
u32 value;