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thermal: Intel SoC DTS: Add Braswell support

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Added Intel Braswell CPU id for SOC DTS. Since this doesn't support
APIC IRQ, the driver is modified to have capability to not register
any modifiable trips.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Srinivas Pandruvada 2015-01-28 11:48:02 -08:00 committed by Zhang Rui
parent ec6f34e5b5
commit 6c355fafeb
1 changed files with 30 additions and 16 deletions
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28
drivers/thermal/intel_soc_dts_thermal.c
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@ -309,10 +309,13 @@ static int soc_dts_enable(int id)
return ret;
}
static struct soc_sensor_entry *alloc_soc_dts(int id, u32 tj_max)
static struct soc_sensor_entry *alloc_soc_dts(int id, u32 tj_max,
bool notification_support)
{
struct soc_sensor_entry *aux_entry;
char name[10];
int trip_count = 0;
int trip_mask = 0;
int err;
aux_entry = kzalloc(sizeof(*aux_entry), GFP_KERNEL);
@ -332,11 +335,16 @@ static struct soc_sensor_entry *alloc_soc_dts(int id, u32 tj_max)
aux_entry->tj_max = tj_max;
aux_entry->temp_mask = 0x00FF << (id * 8);
aux_entry->temp_shift = id * 8;
if (notification_support) {
trip_count = SOC_MAX_DTS_TRIPS;
trip_mask = 0x02;
}
snprintf(name, sizeof(name), "soc_dts%d", id);
aux_entry->tzone = thermal_zone_device_register(name,
SOC_MAX_DTS_TRIPS,
0x02,
aux_entry, &tzone_ops, NULL, 0, 0);
trip_count,
trip_mask,
aux_entry, &tzone_ops,
NULL, 0, 0);
if (IS_ERR(aux_entry->tzone)) {
err = PTR_ERR(aux_entry->tzone);
goto err_ret;
@ -402,6 +410,7 @@ static irqreturn_t soc_irq_thread_fn(int irq, void *dev_data)
static const struct x86_cpu_id soc_thermal_ids[] = {
{ X86_VENDOR_INTEL, X86_FAMILY_ANY, 0x37, 0, BYT_SOC_DTS_APIC_IRQ},
{ X86_VENDOR_INTEL, X86_FAMILY_ANY, 0x4c, 0, 0},
{}
};
MODULE_DEVICE_TABLE(x86cpu, soc_thermal_ids);
@ -420,8 +429,11 @@ static int __init intel_soc_thermal_init(void)
if (get_tj_max(&tj_max))
return -EINVAL;
soc_dts_thres_irq = (int)match_cpu->driver_data;
for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) {
soc_dts[i] = alloc_soc_dts(i, tj_max);
soc_dts[i] = alloc_soc_dts(i, tj_max,
soc_dts_thres_irq ? true : false);
if (IS_ERR(soc_dts[i])) {
err = PTR_ERR(soc_dts[i]);
goto err_free;
@ -430,8 +442,7 @@ static int __init intel_soc_thermal_init(void)
spin_lock_init(&intr_notify_lock);
soc_dts_thres_irq = (int)match_cpu->driver_data;
if (soc_dts_thres_irq) {
err = request_threaded_irq(soc_dts_thres_irq, NULL,
soc_irq_thread_fn,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
@ -440,6 +451,7 @@ static int __init intel_soc_thermal_init(void)
pr_err("request_threaded_irq ret %d\n", err);
goto err_free;
}
}
for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) {
err = update_trip_temp(soc_dts[i], 0, tj_max - crit_offset);
@ -451,6 +463,7 @@ static int __init intel_soc_thermal_init(void)
err_trip_temp:
i = SOC_MAX_DTS_SENSORS;
if (soc_dts_thres_irq)
free_irq(soc_dts_thres_irq, soc_dts);
err_free:
while (--i >= 0)
@ -466,6 +479,7 @@ static void __exit intel_soc_thermal_exit(void)
for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i)
update_trip_temp(soc_dts[i], 0, 0);
if (soc_dts_thres_irq)
free_irq(soc_dts_thres_irq, soc_dts);
for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i)