forked from Minki/linux
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal SoC fixes from Eduardo Valentin: - revert pinctrl settings on rockchip which causes boot failure on rk3288. The proper follow-up patch is being discussed, meanwhile the revert gets those booting again. - minor fixes on rcar and tegra * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: thermal: rcar_gen3_thermal: Update temperature conversion method thermal: rcar_gen3_thermal: Update calculation formula of IRQTEMP thermal: rcar_gen3_thermal: Update value of Tj_1 thermal: tegra: Make tegra210_tsensor_thermtrips static Revert "thermal: rockchip: fix up the tsadc pinctrl setting error"
This commit is contained in:
Linus Torvalds
commit
49bbd8bb34
@ -62,6 +62,13 @@
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#define TSC_MAX_NUM 3
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/* default THCODE values if FUSEs are missing */
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static const int thcode[TSC_MAX_NUM][3] = {
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{ 3397, 2800, 2221 },
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{ 3393, 2795, 2216 },
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{ 3389, 2805, 2237 },
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};
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/* Structure for thermal temperature calculation */
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struct equation_coefs {
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int a1;
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@ -76,6 +83,8 @@ struct rcar_gen3_thermal_tsc {
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struct equation_coefs coef;
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int low;
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int high;
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int tj_t;
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int id; /* thermal channel id */
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};
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struct rcar_gen3_thermal_priv {
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@ -122,30 +131,28 @@ static inline void rcar_gen3_thermal_write(struct rcar_gen3_thermal_tsc *tsc,
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#define RCAR3_THERMAL_GRAN 500 /* mili Celsius */
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/* no idea where these constants come from */
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#define TJ_1 116
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#define TJ_3 -41
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static void rcar_gen3_thermal_calc_coefs(struct equation_coefs *coef,
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int *ptat, int *thcode)
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static void rcar_gen3_thermal_calc_coefs(struct rcar_gen3_thermal_tsc *tsc,
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int *ptat, const int *thcode,
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int ths_tj_1)
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{
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int tj_2;
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/* TODO: Find documentation and document constant calculation formula */
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/*
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* Division is not scaled in BSP and if scaled it might overflow
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* the dividend (4095 * 4095 << 14 > INT_MAX) so keep it unscaled
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*/
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tj_2 = (FIXPT_INT((ptat[1] - ptat[2]) * 157)
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/ (ptat[0] - ptat[2])) - FIXPT_INT(41);
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tsc->tj_t = (FIXPT_INT((ptat[1] - ptat[2]) * 157)
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/ (ptat[0] - ptat[2])) + FIXPT_INT(TJ_3);
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coef->a1 = FIXPT_DIV(FIXPT_INT(thcode[1] - thcode[2]),
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tj_2 - FIXPT_INT(TJ_3));
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coef->b1 = FIXPT_INT(thcode[2]) - coef->a1 * TJ_3;
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tsc->coef.a1 = FIXPT_DIV(FIXPT_INT(thcode[1] - thcode[2]),
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tsc->tj_t - FIXPT_INT(TJ_3));
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tsc->coef.b1 = FIXPT_INT(thcode[2]) - tsc->coef.a1 * TJ_3;
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coef->a2 = FIXPT_DIV(FIXPT_INT(thcode[1] - thcode[0]),
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tj_2 - FIXPT_INT(TJ_1));
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coef->b2 = FIXPT_INT(thcode[0]) - coef->a2 * TJ_1;
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tsc->coef.a2 = FIXPT_DIV(FIXPT_INT(thcode[1] - thcode[0]),
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tsc->tj_t - FIXPT_INT(ths_tj_1));
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tsc->coef.b2 = FIXPT_INT(thcode[0]) - tsc->coef.a2 * ths_tj_1;
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}
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static int rcar_gen3_thermal_round(int temp)
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@ -161,15 +168,19 @@ static int rcar_gen3_thermal_round(int temp)
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static int rcar_gen3_thermal_get_temp(void *devdata, int *temp)
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{
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struct rcar_gen3_thermal_tsc *tsc = devdata;
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int mcelsius, val1, val2;
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int mcelsius, val;
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u32 reg;
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/* Read register and convert to mili Celsius */
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reg = rcar_gen3_thermal_read(tsc, REG_GEN3_TEMP) & CTEMP_MASK;
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val1 = FIXPT_DIV(FIXPT_INT(reg) - tsc->coef.b1, tsc->coef.a1);
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val2 = FIXPT_DIV(FIXPT_INT(reg) - tsc->coef.b2, tsc->coef.a2);
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mcelsius = FIXPT_TO_MCELSIUS((val1 + val2) / 2);
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if (reg <= thcode[tsc->id][1])
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val = FIXPT_DIV(FIXPT_INT(reg) - tsc->coef.b1,
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tsc->coef.a1);
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else
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val = FIXPT_DIV(FIXPT_INT(reg) - tsc->coef.b2,
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tsc->coef.a2);
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mcelsius = FIXPT_TO_MCELSIUS(val);
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/* Make sure we are inside specifications */
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if ((mcelsius < MCELSIUS(-40)) || (mcelsius > MCELSIUS(125)))
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@ -184,13 +195,15 @@ static int rcar_gen3_thermal_get_temp(void *devdata, int *temp)
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static int rcar_gen3_thermal_mcelsius_to_temp(struct rcar_gen3_thermal_tsc *tsc,
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int mcelsius)
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{
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int celsius, val1, val2;
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int celsius, val;
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celsius = DIV_ROUND_CLOSEST(mcelsius, 1000);
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val1 = celsius * tsc->coef.a1 + tsc->coef.b1;
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val2 = celsius * tsc->coef.a2 + tsc->coef.b2;
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if (celsius <= INT_FIXPT(tsc->tj_t))
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val = celsius * tsc->coef.a1 + tsc->coef.b1;
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else
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val = celsius * tsc->coef.a2 + tsc->coef.b2;
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return INT_FIXPT((val1 + val2) / 2);
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return INT_FIXPT(val);
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}
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static int rcar_gen3_thermal_set_trips(void *devdata, int low, int high)
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@ -294,12 +307,29 @@ static void rcar_gen3_thermal_init(struct rcar_gen3_thermal_tsc *tsc)
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usleep_range(1000, 2000);
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}
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static const int rcar_gen3_ths_tj_1 = 126;
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static const int rcar_gen3_ths_tj_1_m3_w = 116;
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static const struct of_device_id rcar_gen3_thermal_dt_ids[] = {
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{ .compatible = "renesas,r8a774a1-thermal", },
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{ .compatible = "renesas,r8a7795-thermal", },
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{ .compatible = "renesas,r8a7796-thermal", },
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{ .compatible = "renesas,r8a77965-thermal", },
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{ .compatible = "renesas,r8a77980-thermal", },
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{
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.compatible = "renesas,r8a774a1-thermal",
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.data = &rcar_gen3_ths_tj_1_m3_w,
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},
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{
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.compatible = "renesas,r8a7795-thermal",
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.data = &rcar_gen3_ths_tj_1,
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},
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{
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.compatible = "renesas,r8a7796-thermal",
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.data = &rcar_gen3_ths_tj_1_m3_w,
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},
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{
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.compatible = "renesas,r8a77965-thermal",
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.data = &rcar_gen3_ths_tj_1,
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},
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{
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.compatible = "renesas,r8a77980-thermal",
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.data = &rcar_gen3_ths_tj_1,
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},
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{},
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};
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MODULE_DEVICE_TABLE(of, rcar_gen3_thermal_dt_ids);
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@ -328,6 +358,7 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
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{
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struct rcar_gen3_thermal_priv *priv;
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struct device *dev = &pdev->dev;
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const int *rcar_gen3_ths_tj_1 = of_device_get_match_data(dev);
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struct resource *res;
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struct thermal_zone_device *zone;
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int ret, irq, i;
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@ -336,11 +367,6 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
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/* default values if FUSEs are missing */
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/* TODO: Read values from hardware on supported platforms */
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int ptat[3] = { 2631, 1509, 435 };
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int thcode[TSC_MAX_NUM][3] = {
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{ 3397, 2800, 2221 },
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{ 3393, 2795, 2216 },
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{ 3389, 2805, 2237 },
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};
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priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
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if (!priv)
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@ -395,11 +421,13 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
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ret = PTR_ERR(tsc->base);
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goto error_unregister;
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}
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tsc->id = i;
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priv->tscs[i] = tsc;
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priv->thermal_init(tsc);
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rcar_gen3_thermal_calc_coefs(&tsc->coef, ptat, thcode[i]);
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rcar_gen3_thermal_calc_coefs(tsc, ptat, thcode[i],
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*rcar_gen3_ths_tj_1);
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zone = devm_thermal_zone_of_sensor_register(dev, i, tsc,
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&rcar_gen3_tz_of_ops);
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@ -172,9 +172,6 @@ struct rockchip_thermal_data {
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int tshut_temp;
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enum tshut_mode tshut_mode;
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enum tshut_polarity tshut_polarity;
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struct pinctrl *pinctrl;
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struct pinctrl_state *gpio_state;
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struct pinctrl_state *otp_state;
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};
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/**
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@ -1283,8 +1280,6 @@ static int rockchip_thermal_probe(struct platform_device *pdev)
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return error;
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}
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thermal->chip->control(thermal->regs, false);
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error = clk_prepare_enable(thermal->clk);
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if (error) {
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dev_err(&pdev->dev, "failed to enable converter clock: %d\n",
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@ -1310,30 +1305,6 @@ static int rockchip_thermal_probe(struct platform_device *pdev)
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thermal->chip->initialize(thermal->grf, thermal->regs,
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thermal->tshut_polarity);
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if (thermal->tshut_mode == TSHUT_MODE_GPIO) {
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thermal->pinctrl = devm_pinctrl_get(&pdev->dev);
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if (IS_ERR(thermal->pinctrl)) {
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dev_err(&pdev->dev, "failed to find thermal pinctrl\n");
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return PTR_ERR(thermal->pinctrl);
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}
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thermal->gpio_state = pinctrl_lookup_state(thermal->pinctrl,
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"gpio");
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if (IS_ERR_OR_NULL(thermal->gpio_state)) {
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dev_err(&pdev->dev, "failed to find thermal gpio state\n");
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return -EINVAL;
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}
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thermal->otp_state = pinctrl_lookup_state(thermal->pinctrl,
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"otpout");
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if (IS_ERR_OR_NULL(thermal->otp_state)) {
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dev_err(&pdev->dev, "failed to find thermal otpout state\n");
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return -EINVAL;
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}
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pinctrl_select_state(thermal->pinctrl, thermal->otp_state);
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}
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for (i = 0; i < thermal->chip->chn_num; i++) {
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error = rockchip_thermal_register_sensor(pdev, thermal,
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&thermal->sensors[i],
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@ -1404,8 +1375,8 @@ static int __maybe_unused rockchip_thermal_suspend(struct device *dev)
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clk_disable(thermal->pclk);
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clk_disable(thermal->clk);
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if (thermal->tshut_mode == TSHUT_MODE_GPIO)
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pinctrl_select_state(thermal->pinctrl, thermal->gpio_state);
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pinctrl_pm_select_sleep_state(dev);
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return 0;
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}
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@ -1450,8 +1421,7 @@ static int __maybe_unused rockchip_thermal_resume(struct device *dev)
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for (i = 0; i < thermal->chip->chn_num; i++)
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rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);
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if (thermal->tshut_mode == TSHUT_MODE_GPIO)
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pinctrl_select_state(thermal->pinctrl, thermal->otp_state);
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pinctrl_pm_select_default_state(dev);
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return 0;
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}
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@ -208,7 +208,7 @@ static const struct tegra_soctherm_fuse tegra210_soctherm_fuse = {
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.fuse_spare_realignment = 0,
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};
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struct tsensor_group_thermtrips tegra210_tsensor_thermtrips[] = {
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static struct tsensor_group_thermtrips tegra210_tsensor_thermtrips[] = {
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{.id = TEGRA124_SOCTHERM_SENSOR_NUM},
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{.id = TEGRA124_SOCTHERM_SENSOR_NUM},
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{.id = TEGRA124_SOCTHERM_SENSOR_NUM},
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