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authorAnson Huang <b20788@freescale.com>2013-03-29 09:44:41 +0800
committerRichard Liu <r66033@freescale.com>2013-04-08 12:36:58 +0800
commit52eb964770ff859ab9bb4b8d3adeecc7d3c8c0a4 (patch)
tree7db7eb58254f5c003ce95ecf5cf864e893a27900
parent2e2ec276df83834ebe8e1f891a3d38ee5b302080 (diff)
ENGR00256543 mx6: Update equation for thermal sensor on i.MX6DLimx-android-13.4.1.04
Use universal equation and 25C's calibration data to get thermal sensor's ratio on i.MX6DL. Signed-off-by: Anson Huang <b20788@freescale.com>
-rw-r--r--drivers/mxc/thermal/thermal.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mxc/thermal/thermal.c b/drivers/mxc/thermal/thermal.c
index 21ff18fb14fd..226be6adfa8a 100644
--- a/drivers/mxc/thermal/thermal.c
+++ b/drivers/mxc/thermal/thermal.c
@@ -861,13 +861,13 @@ static int anatop_thermal_counting_ratio(unsigned int fuse_data)
raw_hot = (fuse_data & 0xfff00) >> 8;
hot_temp = fuse_data & 0xff;
- if (!calibration_valid && cpu_is_mx6q())
+ if (!calibration_valid && !cpu_is_mx6sl())
/*
* The universal equation for thermal sensor
* is slope = 0.4297157 - (0.0015976 * 25C fuse),
* here we convert them to integer to make them
* easy for counting, FACTOR1 is 15976,
- * FACTORs is 4297157. Our ratio = -100 * slope.
+ * FACTOR2 is 4297157. Our ratio = -100 * slope.
*/
ratio = ((FACTOR1 * raw_25c - FACTOR2) + 50000) / 100000;
else