Merge tag 'thermal-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux

Pull thermal updates from Daniel Lezcano:

 - Add support to enable/disable the thermal zones resulting on core
   code and drivers cleanup (Andrzej Pietrasiewicz)

 - Add generic netlink support for userspace notifications: events,
   temperature and discovery commands (Daniel Lezcano)

 - Fix redundant initialization for a ret variable (Colin Ian King)

 - Remove the clock cooling code as it is used nowhere (Amit Kucheria)

 - Add the rcar_gen3_thermal's r8a774e1 support (Marian-Cristian
   Rotariu)

 - Replace all references to thermal.txt in the documentation to the
   corresponding yaml files (Amit Kucheria)

 - Add maintainer entry for the IPA (Lukasz Luba)

 - Add support for MSM8939 for the tsens (Shawn Guo)

 - Update power allocator and devfreq cooling to SPDX licensing (Lukasz
   Luba)

 - Add Cannon Lake Low Power PCH support (Sumeet Pawnikar)

 - Add tsensor support for V2 mediatek thermal system (Henry Yen)

 - Fix thermal zone lookup by ID for the core code (Thierry Reding)

* tag 'thermal-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (40 commits)
  thermal: intel: intel_pch_thermal: Add Cannon Lake Low Power PCH support
  thermal: mediatek: Add tsensor support for V2 thermal system
  thermal: mediatek: Prepare to add support for other platforms
  thermal: Update power allocator and devfreq cooling to SPDX licensing
  MAINTAINERS: update entry to thermal governors file name prefixing
  thermal: core: Add thermal zone enable/disable notification
  thermal: qcom: tsens-v0_1: Add support for MSM8939
  dt-bindings: tsens: qcom: Document MSM8939 compatible
  thermal: core: Fix thermal zone lookup by ID
  thermal: int340x: processor_thermal: fix: update Jasper Lake PCI id
  thermal: imx8mm: Support module autoloading
  thermal: ti-soc-thermal: Fix reversed condition in ti_thermal_expose_sensor()
  MAINTAINERS: Add maintenance information for IPA
  thermal: rcar_gen3_thermal: Do not shadow thcode variable
  dt-bindings: thermal: Get rid of thermal.txt and replace references
  thermal: core: Move initialization after core initcall
  thermal: netlink: Improve the initcall ordering
  net: genetlink: Move initialization to core_initcall
  thermal: rcar_gen3_thermal: Add r8a774e1 support
  thermal/drivers/clock_cooling: Remove clock_cooling code
  ...

1 files changed, 181 insertions, 53 deletions

diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index 42c9cd0e5f77..0bd7aa564bc2 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -38,6 +38,7 @@
 #define TEMP_MONIDET0		0x014
 #define TEMP_MONIDET1		0x018
 #define TEMP_MSRCTL0		0x038
+#define TEMP_MSRCTL1		0x03c
 #define TEMP_AHBPOLL		0x040
 #define TEMP_AHBTO		0x044
 #define TEMP_ADCPNP0		0x048
@@ -120,18 +121,32 @@
  * MT2701 has 3 sensors and needs 3 VTS calibration data.
  * MT2712 has 4 sensors and needs 4 VTS calibration data.
  */
-#define CALIB_BUF0_VALID		BIT(0)
-#define CALIB_BUF1_ADC_GE(x)		(((x) >> 22) & 0x3ff)
-#define CALIB_BUF0_VTS_TS1(x)		(((x) >> 17) & 0x1ff)
-#define CALIB_BUF0_VTS_TS2(x)		(((x) >> 8) & 0x1ff)
-#define CALIB_BUF1_VTS_TS3(x)		(((x) >> 0) & 0x1ff)
-#define CALIB_BUF2_VTS_TS4(x)		(((x) >> 23) & 0x1ff)
-#define CALIB_BUF2_VTS_TS5(x)		(((x) >> 5) & 0x1ff)
-#define CALIB_BUF2_VTS_TSABB(x)		(((x) >> 14) & 0x1ff)
-#define CALIB_BUF0_DEGC_CALI(x)		(((x) >> 1) & 0x3f)
-#define CALIB_BUF0_O_SLOPE(x)		(((x) >> 26) & 0x3f)
-#define CALIB_BUF0_O_SLOPE_SIGN(x)	(((x) >> 7) & 0x1)
-#define CALIB_BUF1_ID(x)		(((x) >> 9) & 0x1)
+#define CALIB_BUF0_VALID_V1		BIT(0)
+#define CALIB_BUF1_ADC_GE_V1(x)		(((x) >> 22) & 0x3ff)
+#define CALIB_BUF0_VTS_TS1_V1(x)	(((x) >> 17) & 0x1ff)
+#define CALIB_BUF0_VTS_TS2_V1(x)	(((x) >> 8) & 0x1ff)
+#define CALIB_BUF1_VTS_TS3_V1(x)	(((x) >> 0) & 0x1ff)
+#define CALIB_BUF2_VTS_TS4_V1(x)	(((x) >> 23) & 0x1ff)
+#define CALIB_BUF2_VTS_TS5_V1(x)	(((x) >> 5) & 0x1ff)
+#define CALIB_BUF2_VTS_TSABB_V1(x)	(((x) >> 14) & 0x1ff)
+#define CALIB_BUF0_DEGC_CALI_V1(x)	(((x) >> 1) & 0x3f)
+#define CALIB_BUF0_O_SLOPE_V1(x)	(((x) >> 26) & 0x3f)
+#define CALIB_BUF0_O_SLOPE_SIGN_V1(x)	(((x) >> 7) & 0x1)
+#define CALIB_BUF1_ID_V1(x)		(((x) >> 9) & 0x1)
+
+/*
+ * Layout of the fuses providing the calibration data
+ * These macros could be used for MT7622.
+ */
+#define CALIB_BUF0_ADC_OE_V2(x)		(((x) >> 22) & 0x3ff)
+#define CALIB_BUF0_ADC_GE_V2(x)		(((x) >> 12) & 0x3ff)
+#define CALIB_BUF0_DEGC_CALI_V2(x)	(((x) >> 6) & 0x3f)
+#define CALIB_BUF0_O_SLOPE_V2(x)	(((x) >> 0) & 0x3f)
+#define CALIB_BUF1_VTS_TS1_V2(x)	(((x) >> 23) & 0x1ff)
+#define CALIB_BUF1_VTS_TS2_V2(x)	(((x) >> 14) & 0x1ff)
+#define CALIB_BUF1_VTS_TSABB_V2(x)	(((x) >> 5) & 0x1ff)
+#define CALIB_BUF1_VALID_V2(x)		(((x) >> 4) & 0x1)
+#define CALIB_BUF1_O_SLOPE_SIGN_V2(x)	(((x) >> 3) & 0x1)
 
 enum {
 	VTS1,
@@ -143,6 +158,11 @@ enum {
 	MAX_NUM_VTS,
 };
 
+enum mtk_thermal_version {
+	MTK_THERMAL_V1 = 1,
+	MTK_THERMAL_V2,
+};
+
 /* MT2701 thermal sensors */
 #define MT2701_TS1	0
 #define MT2701_TS2	1
@@ -248,6 +268,7 @@ struct mtk_thermal_data {
 	const int *controller_offset;
 	bool need_switch_bank;
 	struct thermal_bank_cfg bank_data[MAX_NUM_ZONES];
+	enum mtk_thermal_version version;
 };
 
 struct mtk_thermal {
@@ -261,8 +282,10 @@ struct mtk_thermal {
 
 	/* Calibration values */
 	s32 adc_ge;
+	s32 adc_oe;
 	s32 degc_cali;
 	s32 o_slope;
+	s32 o_slope_sign;
 	s32 vts[MAX_NUM_VTS];
 
 	const struct mtk_thermal_data *conf;
@@ -401,6 +424,7 @@ static const struct mtk_thermal_data mt8173_thermal_data = {
 	.msr = mt8173_msr,
 	.adcpnp = mt8173_adcpnp,
 	.sensor_mux_values = mt8173_mux_values,
+	.version = MTK_THERMAL_V1,
 };
 
 /*
@@ -431,6 +455,7 @@ static const struct mtk_thermal_data mt2701_thermal_data = {
 	.msr = mt2701_msr,
 	.adcpnp = mt2701_adcpnp,
 	.sensor_mux_values = mt2701_mux_values,
+	.version = MTK_THERMAL_V1,
 };
 
 /*
@@ -461,6 +486,7 @@ static const struct mtk_thermal_data mt2712_thermal_data = {
 	.msr = mt2712_msr,
 	.adcpnp = mt2712_adcpnp,
 	.sensor_mux_values = mt2712_mux_values,
+	.version = MTK_THERMAL_V1,
 };
 
 /*
@@ -485,6 +511,7 @@ static const struct mtk_thermal_data mt7622_thermal_data = {
 	.msr = mt7622_msr,
 	.adcpnp = mt7622_adcpnp,
 	.sensor_mux_values = mt7622_mux_values,
+	.version = MTK_THERMAL_V2,
 };
 
 /*
@@ -517,6 +544,7 @@ static const struct mtk_thermal_data mt8183_thermal_data = {
 	.msr = mt8183_msr,
 	.adcpnp = mt8183_adcpnp,
 	.sensor_mux_values = mt8183_mux_values,
+	.version = MTK_THERMAL_V1,
 };
 
 /**
@@ -528,7 +556,7 @@ static const struct mtk_thermal_data mt8183_thermal_data = {
  * This converts the raw ADC value to mcelsius using the SoC specific
  * calibration constants
  */
-static int raw_to_mcelsius(struct mtk_thermal *mt, int sensno, s32 raw)
+static int raw_to_mcelsius_v1(struct mtk_thermal *mt, int sensno, s32 raw)
 {
 	s32 tmp;
 
@@ -543,6 +571,36 @@ static int raw_to_mcelsius(struct mtk_thermal *mt, int sensno, s32 raw)
 	return mt->degc_cali * 500 - tmp;
 }
 
+static int raw_to_mcelsius_v2(struct mtk_thermal *mt, int sensno, s32 raw)
+{
+	s32 format_1 = 0;
+	s32 format_2 = 0;
+	s32 g_oe = 1;
+	s32 g_gain = 1;
+	s32 g_x_roomt = 0;
+	s32 tmp = 0;
+
+	if (raw == 0)
+		return 0;
+
+	raw &= 0xfff;
+	g_gain = 10000 + (((mt->adc_ge - 512) * 10000) >> 12);
+	g_oe = mt->adc_oe - 512;
+	format_1 = mt->vts[VTS2] + 3105 - g_oe;
+	format_2 = (mt->degc_cali * 10) >> 1;
+	g_x_roomt = (((format_1 * 10000) >> 12) * 10000) / g_gain;
+
+	tmp = (((((raw - g_oe) * 10000) >> 12) * 10000) / g_gain) - g_x_roomt;
+	tmp = tmp * 10 * 100 / 11;
+
+	if (mt->o_slope_sign == 0)
+		tmp = tmp / (165 - mt->o_slope);
+	else
+		tmp = tmp / (165 + mt->o_slope);
+
+	return (format_2 - tmp) * 100;
+}
+
 /**
  * mtk_thermal_get_bank - get bank
  * @bank:	The bank
@@ -596,9 +654,13 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank)
 	for (i = 0; i < conf->bank_data[bank->id].num_sensors; i++) {
 		raw = readl(mt->thermal_base + conf->msr[i]);
 
-		temp = raw_to_mcelsius(mt,
-				       conf->bank_data[bank->id].sensors[i],
-				       raw);
+		if (mt->conf->version == MTK_THERMAL_V1) {
+			temp = raw_to_mcelsius_v1(
+				mt, conf->bank_data[bank->id].sensors[i], raw);
+		} else {
+			temp = raw_to_mcelsius_v2(
+				mt, conf->bank_data[bank->id].sensors[i], raw);
+		}
 
 		/*
 		 * The first read of a sensor often contains very high bogus
@@ -700,9 +762,11 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num,
 	writel(auxadc_phys_base + AUXADC_CON1_CLR_V,
 	       controller_base + TEMP_ADCMUXADDR);
 
-	/* AHB address for pnp sensor mux selection */
-	writel(apmixed_phys_base + APMIXED_SYS_TS_CON1,
-	       controller_base + TEMP_PNPMUXADDR);
+	if (mt->conf->version == MTK_THERMAL_V1) {
+		/* AHB address for pnp sensor mux selection */
+		writel(apmixed_phys_base + APMIXED_SYS_TS_CON1,
+		       controller_base + TEMP_PNPMUXADDR);
+	}
 
 	/* AHB value for auxadc enable */
 	writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCEN);
@@ -759,6 +823,68 @@ static u64 of_get_phys_base(struct device_node *np)
 	return of_translate_address(np, regaddr_p);
 }
 
+static int mtk_thermal_extract_efuse_v1(struct mtk_thermal *mt, u32 *buf)
+{
+	int i;
+
+	if (!(buf[0] & CALIB_BUF0_VALID_V1))
+		return -EINVAL;
+
+	mt->adc_ge = CALIB_BUF1_ADC_GE_V1(buf[1]);
+
+	for (i = 0; i < mt->conf->num_sensors; i++) {
+		switch (mt->conf->vts_index[i]) {
+		case VTS1:
+			mt->vts[VTS1] = CALIB_BUF0_VTS_TS1_V1(buf[0]);
+			break;
+		case VTS2:
+			mt->vts[VTS2] = CALIB_BUF0_VTS_TS2_V1(buf[0]);
+			break;
+		case VTS3:
+			mt->vts[VTS3] = CALIB_BUF1_VTS_TS3_V1(buf[1]);
+			break;
+		case VTS4:
+			mt->vts[VTS4] = CALIB_BUF2_VTS_TS4_V1(buf[2]);
+			break;
+		case VTS5:
+			mt->vts[VTS5] = CALIB_BUF2_VTS_TS5_V1(buf[2]);
+			break;
+		case VTSABB:
+			mt->vts[VTSABB] =
+				CALIB_BUF2_VTS_TSABB_V1(buf[2]);
+			break;
+		default:
+			break;
+		}
+	}
+
+	mt->degc_cali = CALIB_BUF0_DEGC_CALI_V1(buf[0]);
+	if (CALIB_BUF1_ID_V1(buf[1]) &
+	    CALIB_BUF0_O_SLOPE_SIGN_V1(buf[0]))
+		mt->o_slope = -CALIB_BUF0_O_SLOPE_V1(buf[0]);
+	else
+		mt->o_slope = CALIB_BUF0_O_SLOPE_V1(buf[0]);
+
+	return 0;
+}
+
+static int mtk_thermal_extract_efuse_v2(struct mtk_thermal *mt, u32 *buf)
+{
+	if (!CALIB_BUF1_VALID_V2(buf[1]))
+		return -EINVAL;
+
+	mt->adc_oe = CALIB_BUF0_ADC_OE_V2(buf[0]);
+	mt->adc_ge = CALIB_BUF0_ADC_GE_V2(buf[0]);
+	mt->degc_cali = CALIB_BUF0_DEGC_CALI_V2(buf[0]);
+	mt->o_slope = CALIB_BUF0_O_SLOPE_V2(buf[0]);
+	mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V2(buf[1]);
+	mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V2(buf[1]);
+	mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V2(buf[1]);
+	mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V2(buf[1]);
+
+	return 0;
+}
+
 static int mtk_thermal_get_calibration_data(struct device *dev,
 					    struct mtk_thermal *mt)
 {
@@ -794,42 +920,14 @@ static int mtk_thermal_get_calibration_data(struct device *dev,
 		goto out;
 	}
 
-	if (buf[0] & CALIB_BUF0_VALID) {
-		mt->adc_ge = CALIB_BUF1_ADC_GE(buf[1]);
-
-		for (i = 0; i < mt->conf->num_sensors; i++) {
-			switch (mt->conf->vts_index[i]) {
-			case VTS1:
-				mt->vts[VTS1] = CALIB_BUF0_VTS_TS1(buf[0]);
-				break;
-			case VTS2:
-				mt->vts[VTS2] = CALIB_BUF0_VTS_TS2(buf[0]);
-				break;
-			case VTS3:
-				mt->vts[VTS3] = CALIB_BUF1_VTS_TS3(buf[1]);
-				break;
-			case VTS4:
-				mt->vts[VTS4] = CALIB_BUF2_VTS_TS4(buf[2]);
-				break;
-			case VTS5:
-				mt->vts[VTS5] = CALIB_BUF2_VTS_TS5(buf[2]);
-				break;
-			case VTSABB:
-				mt->vts[VTSABB] = CALIB_BUF2_VTS_TSABB(buf[2]);
-				break;
-			default:
-				break;
-			}
-		}
+	if (mt->conf->version == MTK_THERMAL_V1)
+		ret = mtk_thermal_extract_efuse_v1(mt, buf);
+	else
+		ret = mtk_thermal_extract_efuse_v2(mt, buf);
 
-		mt->degc_cali = CALIB_BUF0_DEGC_CALI(buf[0]);
-		if (CALIB_BUF1_ID(buf[1]) &
-		    CALIB_BUF0_O_SLOPE_SIGN(buf[0]))
-			mt->o_slope = -CALIB_BUF0_O_SLOPE(buf[0]);
-		else
-			mt->o_slope = CALIB_BUF0_O_SLOPE(buf[0]);
-	} else {
+	if (ret) {
 		dev_info(dev, "Device not calibrated, using default calibration values\n");
+		ret = 0;
 	}
 
 out:
@@ -863,6 +961,28 @@ static const struct of_device_id mtk_thermal_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, mtk_thermal_of_match);
 
+static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base)
+{
+	int tmp;
+
+	tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1);
+	tmp &= ~(0x37);
+	tmp |= 0x1;
+	writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1);
+	udelay(200);
+}
+
+static void mtk_thermal_release_periodic_ts(struct mtk_thermal *mt,
+					    void __iomem *auxadc_base)
+{
+	int tmp;
+
+	writel(0x800, auxadc_base + AUXADC_CON1_SET_V);
+	writel(0x1, mt->thermal_base + TEMP_MONCTL0);
+	tmp = readl(mt->thermal_base + TEMP_MSRCTL1);
+	writel((tmp & (~0x10e)), mt->thermal_base + TEMP_MSRCTL1);
+}
+
 static int mtk_thermal_probe(struct platform_device *pdev)
 {
 	int ret, i, ctrl_id;
@@ -871,6 +991,7 @@ static int mtk_thermal_probe(struct platform_device *pdev)
 	struct resource *res;
 	u64 auxadc_phys_base, apmixed_phys_base;
 	struct thermal_zone_device *tzdev;
+	void __iomem *apmixed_base, *auxadc_base;
 
 	mt = devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL);
 	if (!mt)
@@ -905,6 +1026,7 @@ static int mtk_thermal_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	auxadc_base = of_iomap(auxadc, 0);
 	auxadc_phys_base = of_get_phys_base(auxadc);
 
 	of_node_put(auxadc);
@@ -920,6 +1042,7 @@ static int mtk_thermal_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	apmixed_base = of_iomap(apmixedsys, 0);
 	apmixed_phys_base = of_get_phys_base(apmixedsys);
 
 	of_node_put(apmixedsys);
@@ -945,6 +1068,11 @@ static int mtk_thermal_probe(struct platform_device *pdev)
 		goto err_disable_clk_auxadc;
 	}
 
+	if (mt->conf->version == MTK_THERMAL_V2) {
+		mtk_thermal_turn_on_buffer(apmixed_base);
+		mtk_thermal_release_periodic_ts(mt, auxadc_base);
+	}
+
 	for (ctrl_id = 0; ctrl_id < mt->conf->num_controller ; ctrl_id++)
 		for (i = 0; i < mt->conf->num_banks; i++)
 			mtk_thermal_init_bank(mt, i, apmixed_phys_base,