Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit fc66ddff authored by Hien Dang's avatar Hien Dang Committed by Eduardo Valentin
Browse files

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: default avatarDien Pham <dien.pham.ry@renesas.com>
Signed-off-by: default avatarHien Dang <hien.dang.eb@renesas.com>
Signed-off-by: default avatarNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: default avatarSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: default avatarEduardo Valentin <edubezval@gmail.com>
parent 34283724

drivers/thermal/rcar_gen3_thermal.c

+6 −6
Original line number Diff line number Diff line
@@ -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);