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authorMax Krummenacher <max.krummenacher@toradex.com>2013-06-24 14:31:02 +0200
committerMax Krummenacher <max.krummenacher@toradex.com>2013-06-24 14:31:02 +0200
commit929a1f9d4fb33f6d08cf916943bf13ae7cf3732e (patch)
tree0e9fe5e99933b8ded7eba330a6abb653949383c9
parent6e56cccc6785b8e4cd05808a100122868b22f21a (diff)
apalis_t30: set local critical temperatur to 95°C
If the local critical temperature is reached the power is unconditionally switched off. At 70°C ambient the default of 85°C can be reached. So increase the limit in the hwmon chip to 95°C.
-rw-r--r--arch/arm/mach-tegra/board-apalis_t30.c4
-rw-r--r--arch/arm/mach-tegra/board-apalis_t30.h1
2 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-apalis_t30.c b/arch/arm/mach-tegra/board-apalis_t30.c
index 493510bda657..5ed04bffba03 100644
--- a/arch/arm/mach-tegra/board-apalis_t30.c
+++ b/arch/arm/mach-tegra/board-apalis_t30.c
@@ -908,6 +908,10 @@ static void lm95245_probe_callback(struct device *dev)
IRQF_TRIGGER_LOW, "THERMD_ALERT_N", NULL))
pr_err("%s: unable to register THERMD_ALERT_N interrupt\n",
__func__);
+
+ //initalize the local temp limit
+ if(dev)
+ lm95245_set_local_shared_os__critical_limit(dev, TCRIT_LOCAL);
}
static void apalis_t30_thermd_alert_init(void)
diff --git a/arch/arm/mach-tegra/board-apalis_t30.h b/arch/arm/mach-tegra/board-apalis_t30.h
index ad9d68c591d2..5ea5c0b31042 100644
--- a/arch/arm/mach-tegra/board-apalis_t30.h
+++ b/arch/arm/mach-tegra/board-apalis_t30.h
@@ -116,6 +116,7 @@
#define STMPE811_IRQ_END (STMPE811_IRQ_BASE + 22)
#define TDIODE_OFFSET (10000) /* in millicelsius */
+#define TCRIT_LOCAL 95000 /* board temp to switch off PMIC in millicelsius*/
/* External peripheral act as gpio */
/* TPS6591x GPIOs */