thermal: rcar_gen3_thermal: Update calculation formula due to HW evaluation

Due to hardware evaluation result,
Max temperature is changed from 96 to 116 degree Celsius.
Also, calculation formula and pseudo FUSE values are changed accordingly.

Signed-off-by: Dien Pham <dien.pham.ry@renesas.com>
Signed-off-by: Hien Dang <hien.dang.eb@renesas.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
index 561a0a332208504ac274730649da62af23fcdafe..79c2cdb4105fc0b859b9fb8e1b219d7f85c0e193 100644 (file)
--- a/drivers/thermal/rcar_gen3_thermal.c
+++ b/drivers/thermal/rcar_gen3_thermal.c
@@ -132,7 +132,7 @@ static inline void rcar_gen3_thermal_write(struct rcar_gen3_thermal_tsc *tsc,
 #define RCAR3_THERMAL_GRAN 500 /* mili Celsius */
 
 /* no idea where these constants come from */
-#define TJ_1 96
+#define TJ_1 116
 #define TJ_3 -41
 
 static void rcar_gen3_thermal_calc_coefs(struct equation_coefs *coef,
@@ -146,7 +146,7 @@ static void rcar_gen3_thermal_calc_coefs(struct equation_coefs *coef,
         * Division is not scaled in BSP and if scaled it might overflow
         * the dividend (4095 * 4095 << 14 > INT_MAX) so keep it unscaled
         */
-       tj_2 = (FIXPT_INT((ptat[1] - ptat[2]) * 137)
+       tj_2 = (FIXPT_INT((ptat[1] - ptat[2]) * 157)
                / (ptat[0] - ptat[2])) - FIXPT_INT(41);
 
        coef->a1 = FIXPT_DIV(FIXPT_INT(thcode[1] - thcode[2]),
@@ -354,11 +354,11 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
 
        /* default values if FUSEs are missing */
        /* TODO: Read values from hardware on supported platforms */
-       int ptat[3] = { 2351, 1509, 435 };
+       int ptat[3] = { 2631, 1509, 435 };
        int thcode[TSC_MAX_NUM][3] = {
-               { 3248, 2800, 2221 },
-               { 3245, 2795, 2216 },
-               { 3250, 2805, 2237 },
+               { 3397, 2800, 2221 },
+               { 3393, 2795, 2216 },
+               { 3389, 2805, 2237 },
        };
 
        priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);