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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-24 10:04:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-24 10:04:17 -0700
commit49bbd8bb34a48267afb116c3dcfe0cb30b6638cb (patch)
treec02047a509b3c27efda59deafcf62997bdba2d5e /drivers
parente50e6798f1e29e57bc83ba546a9bbbdabe1104a4 (diff)
parent6a310f8f97bb8bc2e2bb9db6f49a1b8678c8d144 (diff)
downloadlinux-49bbd8bb34a48267afb116c3dcfe0cb30b6638cb.tar.gz
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"
Diffstat (limited to 'drivers')
-rw-r--r--drivers/thermal/rcar_gen3_thermal.c92
-rw-r--r--drivers/thermal/rockchip_thermal.c36
-rw-r--r--drivers/thermal/tegra/tegra210-soctherm.c2
3 files changed, 64 insertions, 66 deletions
diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
index 83f306265ee1..a56463308694 100644
--- a/drivers/thermal/rcar_gen3_thermal.c
+++ b/drivers/thermal/rcar_gen3_thermal.c
@@ -62,6 +62,13 @@
#define TSC_MAX_NUM 3
+/* default THCODE values if FUSEs are missing */
+static const int thcode[TSC_MAX_NUM][3] = {
+ { 3397, 2800, 2221 },
+ { 3393, 2795, 2216 },
+ { 3389, 2805, 2237 },
+};
+
/* Structure for thermal temperature calculation */
struct equation_coefs {
int a1;
@@ -76,6 +83,8 @@ struct rcar_gen3_thermal_tsc {
struct equation_coefs coef;
int low;
int high;
+ int tj_t;
+ int id; /* thermal channel id */
};
struct rcar_gen3_thermal_priv {
@@ -122,30 +131,28 @@ 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_1 116
#define TJ_3 -41
-static void rcar_gen3_thermal_calc_coefs(struct equation_coefs *coef,
- int *ptat, int *thcode)
+static void rcar_gen3_thermal_calc_coefs(struct rcar_gen3_thermal_tsc *tsc,
+ int *ptat, const int *thcode,
+ int ths_tj_1)
{
- int tj_2;
-
/* TODO: Find documentation and document constant calculation formula */
/*
* 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]) * 157)
- / (ptat[0] - ptat[2])) - FIXPT_INT(41);
+ tsc->tj_t = (FIXPT_INT((ptat[1] - ptat[2]) * 157)
+ / (ptat[0] - ptat[2])) + FIXPT_INT(TJ_3);
- coef->a1 = FIXPT_DIV(FIXPT_INT(thcode[1] - thcode[2]),
- tj_2 - FIXPT_INT(TJ_3));
- coef->b1 = FIXPT_INT(thcode[2]) - coef->a1 * TJ_3;
+ tsc->coef.a1 = FIXPT_DIV(FIXPT_INT(thcode[1] - thcode[2]),
+ tsc->tj_t - FIXPT_INT(TJ_3));
+ tsc->coef.b1 = FIXPT_INT(thcode[2]) - tsc->coef.a1 * TJ_3;
- coef->a2 = FIXPT_DIV(FIXPT_INT(thcode[1] - thcode[0]),
- tj_2 - FIXPT_INT(TJ_1));
- coef->b2 = FIXPT_INT(thcode[0]) - coef->a2 * TJ_1;
+ tsc->coef.a2 = FIXPT_DIV(FIXPT_INT(thcode[1] - thcode[0]),
+ tsc->tj_t - FIXPT_INT(ths_tj_1));
+ tsc->coef.b2 = FIXPT_INT(thcode[0]) - tsc->coef.a2 * ths_tj_1;
}
static int rcar_gen3_thermal_round(int temp)
@@ -161,15 +168,19 @@ static int rcar_gen3_thermal_round(int temp)
static int rcar_gen3_thermal_get_temp(void *devdata, int *temp)
{
struct rcar_gen3_thermal_tsc *tsc = devdata;
- int mcelsius, val1, val2;
+ int mcelsius, val;
u32 reg;
/* Read register and convert to mili Celsius */
reg = rcar_gen3_thermal_read(tsc, REG_GEN3_TEMP) & CTEMP_MASK;
- val1 = FIXPT_DIV(FIXPT_INT(reg) - tsc->coef.b1, tsc->coef.a1);
- val2 = FIXPT_DIV(FIXPT_INT(reg) - tsc->coef.b2, tsc->coef.a2);
- mcelsius = FIXPT_TO_MCELSIUS((val1 + val2) / 2);
+ if (reg <= thcode[tsc->id][1])
+ val = FIXPT_DIV(FIXPT_INT(reg) - tsc->coef.b1,
+ tsc->coef.a1);
+ else
+ val = FIXPT_DIV(FIXPT_INT(reg) - tsc->coef.b2,
+ tsc->coef.a2);
+ mcelsius = FIXPT_TO_MCELSIUS(val);
/* Make sure we are inside specifications */
if ((mcelsius < MCELSIUS(-40)) || (mcelsius > MCELSIUS(125)))
@@ -184,13 +195,15 @@ static int rcar_gen3_thermal_get_temp(void *devdata, int *temp)
static int rcar_gen3_thermal_mcelsius_to_temp(struct rcar_gen3_thermal_tsc *tsc,
int mcelsius)
{
- int celsius, val1, val2;
+ int celsius, val;
celsius = DIV_ROUND_CLOSEST(mcelsius, 1000);
- val1 = celsius * tsc->coef.a1 + tsc->coef.b1;
- val2 = celsius * tsc->coef.a2 + tsc->coef.b2;
+ if (celsius <= INT_FIXPT(tsc->tj_t))
+ val = celsius * tsc->coef.a1 + tsc->coef.b1;
+ else
+ val = celsius * tsc->coef.a2 + tsc->coef.b2;
- return INT_FIXPT((val1 + val2) / 2);
+ return INT_FIXPT(val);
}
static int rcar_gen3_thermal_set_trips(void *devdata, int low, int high)
@@ -294,12 +307,29 @@ static void rcar_gen3_thermal_init(struct rcar_gen3_thermal_tsc *tsc)
usleep_range(1000, 2000);
}
+static const int rcar_gen3_ths_tj_1 = 126;
+static const int rcar_gen3_ths_tj_1_m3_w = 116;
static const struct of_device_id rcar_gen3_thermal_dt_ids[] = {
- { .compatible = "renesas,r8a774a1-thermal", },
- { .compatible = "renesas,r8a7795-thermal", },
- { .compatible = "renesas,r8a7796-thermal", },
- { .compatible = "renesas,r8a77965-thermal", },
- { .compatible = "renesas,r8a77980-thermal", },
+ {
+ .compatible = "renesas,r8a774a1-thermal",
+ .data = &rcar_gen3_ths_tj_1_m3_w,
+ },
+ {
+ .compatible = "renesas,r8a7795-thermal",
+ .data = &rcar_gen3_ths_tj_1,
+ },
+ {
+ .compatible = "renesas,r8a7796-thermal",
+ .data = &rcar_gen3_ths_tj_1_m3_w,
+ },
+ {
+ .compatible = "renesas,r8a77965-thermal",
+ .data = &rcar_gen3_ths_tj_1,
+ },
+ {
+ .compatible = "renesas,r8a77980-thermal",
+ .data = &rcar_gen3_ths_tj_1,
+ },
{},
};
MODULE_DEVICE_TABLE(of, rcar_gen3_thermal_dt_ids);
@@ -328,6 +358,7 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
{
struct rcar_gen3_thermal_priv *priv;
struct device *dev = &pdev->dev;
+ const int *rcar_gen3_ths_tj_1 = of_device_get_match_data(dev);
struct resource *res;
struct thermal_zone_device *zone;
int ret, irq, i;
@@ -336,11 +367,6 @@ 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] = { 2631, 1509, 435 };
- int thcode[TSC_MAX_NUM][3] = {
- { 3397, 2800, 2221 },
- { 3393, 2795, 2216 },
- { 3389, 2805, 2237 },
- };
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -395,11 +421,13 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
ret = PTR_ERR(tsc->base);
goto error_unregister;
}
+ tsc->id = i;
priv->tscs[i] = tsc;
priv->thermal_init(tsc);
- rcar_gen3_thermal_calc_coefs(&tsc->coef, ptat, thcode[i]);
+ rcar_gen3_thermal_calc_coefs(tsc, ptat, thcode[i],
+ *rcar_gen3_ths_tj_1);
zone = devm_thermal_zone_of_sensor_register(dev, i, tsc,
&rcar_gen3_tz_of_ops);
diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index bda1ca199abd..7ef9c7efe950 100644
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -172,9 +172,6 @@ struct rockchip_thermal_data {
int tshut_temp;
enum tshut_mode tshut_mode;
enum tshut_polarity tshut_polarity;
- struct pinctrl *pinctrl;
- struct pinctrl_state *gpio_state;
- struct pinctrl_state *otp_state;
};
/**
@@ -1283,8 +1280,6 @@ static int rockchip_thermal_probe(struct platform_device *pdev)
return error;
}
- thermal->chip->control(thermal->regs, false);
-
error = clk_prepare_enable(thermal->clk);
if (error) {
dev_err(&pdev->dev, "failed to enable converter clock: %d\n",
@@ -1310,30 +1305,6 @@ static int rockchip_thermal_probe(struct platform_device *pdev)
thermal->chip->initialize(thermal->grf, thermal->regs,
thermal->tshut_polarity);
- if (thermal->tshut_mode == TSHUT_MODE_GPIO) {
- thermal->pinctrl = devm_pinctrl_get(&pdev->dev);
- if (IS_ERR(thermal->pinctrl)) {
- dev_err(&pdev->dev, "failed to find thermal pinctrl\n");
- return PTR_ERR(thermal->pinctrl);
- }
-
- thermal->gpio_state = pinctrl_lookup_state(thermal->pinctrl,
- "gpio");
- if (IS_ERR_OR_NULL(thermal->gpio_state)) {
- dev_err(&pdev->dev, "failed to find thermal gpio state\n");
- return -EINVAL;
- }
-
- thermal->otp_state = pinctrl_lookup_state(thermal->pinctrl,
- "otpout");
- if (IS_ERR_OR_NULL(thermal->otp_state)) {
- dev_err(&pdev->dev, "failed to find thermal otpout state\n");
- return -EINVAL;
- }
-
- pinctrl_select_state(thermal->pinctrl, thermal->otp_state);
- }
-
for (i = 0; i < thermal->chip->chn_num; i++) {
error = rockchip_thermal_register_sensor(pdev, thermal,
&thermal->sensors[i],
@@ -1404,8 +1375,8 @@ static int __maybe_unused rockchip_thermal_suspend(struct device *dev)
clk_disable(thermal->pclk);
clk_disable(thermal->clk);
- if (thermal->tshut_mode == TSHUT_MODE_GPIO)
- pinctrl_select_state(thermal->pinctrl, thermal->gpio_state);
+
+ pinctrl_pm_select_sleep_state(dev);
return 0;
}
@@ -1450,8 +1421,7 @@ static int __maybe_unused rockchip_thermal_resume(struct device *dev)
for (i = 0; i < thermal->chip->chn_num; i++)
rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);
- if (thermal->tshut_mode == TSHUT_MODE_GPIO)
- pinctrl_select_state(thermal->pinctrl, thermal->otp_state);
+ pinctrl_pm_select_default_state(dev);
return 0;
}
diff --git a/drivers/thermal/tegra/tegra210-soctherm.c b/drivers/thermal/tegra/tegra210-soctherm.c
index d31b50050faa..d0ff793f18c5 100644
--- a/drivers/thermal/tegra/tegra210-soctherm.c
+++ b/drivers/thermal/tegra/tegra210-soctherm.c
@@ -208,7 +208,7 @@ static const struct tegra_soctherm_fuse tegra210_soctherm_fuse = {
.fuse_spare_realignment = 0,
};
-struct tsensor_group_thermtrips tegra210_tsensor_thermtrips[] = {
+static struct tsensor_group_thermtrips tegra210_tsensor_thermtrips[] = {
{.id = TEGRA124_SOCTHERM_SENSOR_NUM},
{.id = TEGRA124_SOCTHERM_SENSOR_NUM},
{.id = TEGRA124_SOCTHERM_SENSOR_NUM},