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authorHans de Goede <hdegoede@redhat.com>2018-01-19 21:47:07 +0100
committerAndy Shevchenko <andriy.shevchenko@linux.intel.com>2018-01-29 20:44:15 +0200
commitd890acf728aefc47fd90733d5fef1dff89857748 (patch)
tree5ff8c6989cf4e48db6ef897301f32c4f12593f78 /drivers/platform
parent00f8b2fce4da2296bafc1de6a46510a13ef60938 (diff)
platform/x86: GPD pocket fan: Set speed to max on get_temp failure
When we fail to get the temperature, assume the worst and set the speed to max. While at it introduce a define for MAX_SPEED. Cc: James <kernel@madingley.org> Suggested-by: James <kernel@madingley.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/gpd-pocket-fan.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/platform/x86/gpd-pocket-fan.c b/drivers/platform/x86/gpd-pocket-fan.c
index c6f4d89b1437..1fdf2205730d 100644
--- a/drivers/platform/x86/gpd-pocket-fan.c
+++ b/drivers/platform/x86/gpd-pocket-fan.c
@@ -13,6 +13,8 @@
#include <linux/thermal.h>
#include <linux/workqueue.h>
+#define MAX_SPEED 3
+
static int temp_limits[3] = { 55000, 60000, 65000 };
module_param_array(temp_limits, int, NULL, 0444);
MODULE_PARM_DESC(temp_limits,
@@ -53,9 +55,8 @@ static void gpd_pocket_fan_worker(struct work_struct *work)
if (thermal_zone_get_temp(fan->dts0, &t0) ||
thermal_zone_get_temp(fan->dts1, &t1)) {
dev_warn(fan->dev, "Error getting temperature\n");
- queue_delayed_work(system_wq, &fan->work,
- msecs_to_jiffies(1000));
- return;
+ speed = MAX_SPEED;
+ goto set_speed;
}
temp = max(t0, t1);
@@ -79,8 +80,9 @@ static void gpd_pocket_fan_worker(struct work_struct *work)
speed = i;
if (fan->last_speed <= 0 && speed)
- speed = 3; /* kick start motor */
+ speed = MAX_SPEED; /* kick start motor */
+set_speed:
gpd_pocket_fan_set_speed(fan, speed);
/* When mostly idle (low temp/speed), slow down the poll interval. */