From b02a06ec6a5e693cd5a7fbd0407db942226be21c Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Fri, 29 Mar 2013 09:44:41 +0800 Subject: ENGR00256543 mx6: Update equation for thermal sensor on i.MX6DL Use universal equation and 25C's calibration data to get thermal sensor's ratio on i.MX6DL. Signed-off-by: Anson Huang --- drivers/mxc/thermal/thermal.c | 4 ++-- 1 file 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 -- cgit v1.2.3