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Message-Id: <ca4b7ee0f461aa9739a6860012968f760926968b.1551355503.git.amit.kucheria@linaro.org>
Date: Thu, 28 Feb 2019 17:51:11 +0530
From: Amit Kucheria <amit.kucheria@...aro.org>
To: linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
bjorn.andersson@...aro.org, edubezval@...il.com,
andy.gross@...aro.org, Daniel Lezcano <daniel.lezcano@...aro.org>,
David Brown <david.brown@...aro.org>,
Zhang Rui <rui.zhang@...el.com>
Cc: linux-pm@...r.kernel.org
Subject: [PATCH v2 21/24] drivers: thermal: tsens: Add generic support for TSENS v1 IP
qcs404 has a single TSENS IP block with 10 sensors. It uses version 1.4
of the TSENS IP, functionality for which is encapsulated inside the
qcom,tsens-v1 compatible.
Signed-off-by: Amit Kucheria <amit.kucheria@...aro.org>
---
drivers/thermal/qcom/Makefile | 4 +-
drivers/thermal/qcom/tsens-v1.c | 194 ++++++++++++++++++++++++++++++++
drivers/thermal/qcom/tsens.c | 3 +
drivers/thermal/qcom/tsens.h | 3 +
4 files changed, 203 insertions(+), 1 deletion(-)
create mode 100644 drivers/thermal/qcom/tsens-v1.c
diff --git a/drivers/thermal/qcom/Makefile b/drivers/thermal/qcom/Makefile
index 7fa3cadce760..fc6fe50cdde4 100644
--- a/drivers/thermal/qcom/Makefile
+++ b/drivers/thermal/qcom/Makefile
@@ -1,3 +1,5 @@
obj-$(CONFIG_QCOM_TSENS) += qcom_tsens.o
-qcom_tsens-y += tsens.o tsens-common.o tsens-v0_1.o tsens-8960.o tsens-v2.o
+
+qcom_tsens-y += tsens.o tsens-common.o tsens-v0_1.o \
+ tsens-8960.o tsens-v2.o tsens-v1.o
obj-$(CONFIG_QCOM_SPMI_TEMP_ALARM) += qcom-spmi-temp-alarm.o
diff --git a/drivers/thermal/qcom/tsens-v1.c b/drivers/thermal/qcom/tsens-v1.c
new file mode 100644
index 000000000000..5b90b8282806
--- /dev/null
+++ b/drivers/thermal/qcom/tsens-v1.c
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019, Linaro Limited
+ */
+
+#include <linux/bitops.h>
+#include <linux/regmap.h>
+#include <linux/delay.h>
+#include "tsens.h"
+
+/* ----- SROT ------ */
+#define SROT_HW_VER_OFF 0x0000
+#define SROT_CTRL_OFF 0x0004
+
+/* ----- TM ------ */
+#define TM_INT_EN_OFF 0x0000
+#define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF 0x0004
+#define TM_Sn_STATUS_OFF 0x0044
+#define TM_TRDY_OFF 0x0084
+
+/* eeprom layout data for qcs404/405 (v1) */
+#define BASE0_MASK 0x000007f8
+#define BASE1_MASK 0x0007f800
+#define BASE0_SHIFT 3
+#define BASE1_SHIFT 11
+
+#define S0_P1_MASK 0x0000003f
+#define S1_P1_MASK 0x0003f000
+#define S2_P1_MASK 0x3f000000
+#define S3_P1_MASK 0x000003f0
+#define S4_P1_MASK 0x003f0000
+#define S5_P1_MASK 0x0000003f
+#define S6_P1_MASK 0x0003f000
+#define S7_P1_MASK 0x3f000000
+#define S8_P1_MASK 0x000003f0
+#define S9_P1_MASK 0x003f0000
+
+#define S0_P2_MASK 0x00000fc0
+#define S1_P2_MASK 0x00fc0000
+#define S2_P2_MASK_1_0 0xc0000000
+#define S2_P2_MASK_5_2 0x0000000f
+#define S3_P2_MASK 0x0000fc00
+#define S4_P2_MASK 0x0fc00000
+#define S5_P2_MASK 0x00000fc0
+#define S6_P2_MASK 0x00fc0000
+#define S7_P2_MASK_1_0 0xc0000000
+#define S7_P2_MASK_5_2 0x0000000f
+#define S8_P2_MASK 0x0000fc00
+#define S9_P2_MASK 0x0fc00000
+
+#define S0_P1_SHIFT 0
+#define S0_P2_SHIFT 6
+#define S1_P1_SHIFT 12
+#define S1_P2_SHIFT 18
+#define S2_P1_SHIFT 24
+#define S2_P2_SHIFT_1_0 30
+
+#define S2_P2_SHIFT_5_2 0
+#define S3_P1_SHIFT 4
+#define S3_P2_SHIFT 10
+#define S4_P1_SHIFT 16
+#define S4_P2_SHIFT 22
+
+#define S5_P1_SHIFT 0
+#define S5_P2_SHIFT 6
+#define S6_P1_SHIFT 12
+#define S6_P2_SHIFT 18
+#define S7_P1_SHIFT 24
+#define S7_P2_SHIFT_1_0 30
+
+#define S7_P2_SHIFT_5_2 0
+#define S8_P1_SHIFT 4
+#define S8_P2_SHIFT 10
+#define S9_P1_SHIFT 16
+#define S9_P2_SHIFT 22
+
+#define CAL_SEL_MASK 7
+#define CAL_SEL_SHIFT 0
+
+static int calibrate_v1(struct tsens_priv *priv)
+{
+ u32 base0 = 0, base1 = 0;
+ u32 p1[10], p2[10];
+ u32 mode = 0, lsb = 0, msb = 0;
+ u32 *qfprom_cdata;
+ int i;
+
+ qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
+ if (IS_ERR(qfprom_cdata))
+ return PTR_ERR(qfprom_cdata);
+
+ mode = (qfprom_cdata[4] & CAL_SEL_MASK) >> CAL_SEL_SHIFT;
+ dev_dbg(priv->dev, "calibration mode is %d\n", mode);
+
+ switch (mode) {
+ case TWO_PT_CALIB:
+ base1 = (qfprom_cdata[4] & BASE1_MASK) >> BASE1_SHIFT;
+ p2[0] = (qfprom_cdata[0] & S0_P2_MASK) >> S0_P2_SHIFT;
+ p2[1] = (qfprom_cdata[0] & S1_P2_MASK) >> S1_P2_SHIFT;
+ /* This value is split over two registers, 2 bits and 4 bits */
+ lsb = (qfprom_cdata[0] & S2_P2_MASK_1_0) >> S2_P2_SHIFT_1_0;
+ msb = (qfprom_cdata[1] & S2_P2_MASK_5_2) >> S2_P2_SHIFT_5_2;
+ p2[2] = msb << 2 | lsb;
+ p2[3] = (qfprom_cdata[1] & S3_P2_MASK) >> S3_P2_SHIFT;
+ p2[4] = (qfprom_cdata[1] & S4_P2_MASK) >> S4_P2_SHIFT;
+ p2[5] = (qfprom_cdata[2] & S5_P2_MASK) >> S5_P2_SHIFT;
+ p2[6] = (qfprom_cdata[2] & S6_P2_MASK) >> S6_P2_SHIFT;
+ /* This value is split over two registers, 2 bits and 4 bits */
+ lsb = (qfprom_cdata[2] & S7_P2_MASK_1_0) >> S7_P2_SHIFT_1_0;
+ msb = (qfprom_cdata[3] & S7_P2_MASK_5_2) >> S7_P2_SHIFT_5_2;
+ p2[7] = msb << 2 | lsb;
+ p2[8] = (qfprom_cdata[3] & S8_P2_MASK) >> S8_P2_SHIFT;
+ p2[9] = (qfprom_cdata[3] & S9_P2_MASK) >> S9_P2_SHIFT;
+ for (i = 0; i < priv->num_sensors; i++)
+ p2[i] = ((base1 + p2[i]) << 2);
+ /* Fall through */
+ case ONE_PT_CALIB2:
+ base0 = (qfprom_cdata[4] & BASE0_MASK) >> BASE0_SHIFT;
+ p1[0] = (qfprom_cdata[0] & S0_P1_MASK) >> S0_P1_SHIFT;
+ p1[1] = (qfprom_cdata[0] & S1_P1_MASK) >> S1_P1_SHIFT;
+ p1[2] = (qfprom_cdata[0] & S2_P1_MASK) >> S2_P1_SHIFT;
+ p1[3] = (qfprom_cdata[1] & S3_P1_MASK) >> S3_P1_SHIFT;
+ p1[4] = (qfprom_cdata[1] & S4_P1_MASK) >> S4_P1_SHIFT;
+ p1[5] = (qfprom_cdata[2] & S5_P1_MASK) >> S5_P1_SHIFT;
+ p1[6] = (qfprom_cdata[2] & S6_P1_MASK) >> S6_P1_SHIFT;
+ p1[7] = (qfprom_cdata[2] & S7_P1_MASK) >> S7_P1_SHIFT;
+ p1[8] = (qfprom_cdata[3] & S8_P1_MASK) >> S8_P1_SHIFT;
+ p1[9] = (qfprom_cdata[3] & S9_P1_MASK) >> S9_P1_SHIFT;
+ for (i = 0; i < priv->num_sensors; i++)
+ p1[i] = (((base0) + p1[i]) << 2);
+ break;
+ default:
+ for (i = 0; i < priv->num_sensors; i++) {
+ p1[i] = 500;
+ p2[i] = 780;
+ }
+ break;
+ }
+
+ compute_intercept_slope(priv, p1, p2, mode);
+
+ return 0;
+}
+
+/* v1.x: qcs404,405 */
+
+const struct tsens_features tsens_v1_feat = {
+ .ver_info = 1,
+ .crit_int = 0,
+ .adc = 1,
+ .srot_split = 1,
+ .max_sensors = 11,
+};
+
+const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = {
+ /* ----- SROT ------ */
+ /* VERSION */
+ [VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31),
+ [VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27),
+ [VER_STEP] = REG_FIELD(SROT_HW_VER_OFF, 0, 15),
+ /* CTRL_OFFSET */
+ [TSENS_EN] = REG_FIELD(SROT_CTRL_OFF, 0, 0),
+ [TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1, 1),
+ [SENSOR_EN] = REG_FIELD(SROT_CTRL_OFF, 3, 13),
+
+ /* ----- TM ------ */
+ /* UPPER_LOWER_INTERRUPT_CTRL */
+ [INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 0),
+ /* Sn_UPPER_LOWER_STATUS_CTRL */
+ REG_FIELD_FOR_EACH_SENSOR10(LOW_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 0, 9),
+ REG_FIELD_FOR_EACH_SENSOR10(UP_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19),
+ /* Sn_STATUS */
+ REG_FIELD_FOR_EACH_SENSOR10(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 9),
+ REG_FIELD_FOR_EACH_SENSOR10(VALID, TM_Sn_STATUS_OFF, 14, 14),
+ REG_FIELD_FOR_EACH_SENSOR10(MIN_STATUS, TM_Sn_STATUS_OFF, 10, 10),
+ REG_FIELD_FOR_EACH_SENSOR10(MAX_STATUS, TM_Sn_STATUS_OFF, 13, 13),
+ REG_FIELD_FOR_EACH_SENSOR10(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12),
+ REG_FIELD_FOR_EACH_SENSOR10(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11),
+
+ /* TRDY: 1=ready, 0=in progress */
+ [TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
+};
+
+static const struct tsens_ops ops_generic_v1 = {
+ .init = init_common,
+ .calibrate = calibrate_v1,
+ .get_temp = get_temp_tsens_valid,
+};
+
+const struct tsens_plat_data data_tsens_v1 = {
+ .ops = &ops_generic_v1,
+ .feat = &tsens_v1_feat,
+ .fields = tsens_v1_regfields,
+};
diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index fc44cac31fa5..36b0b52db524 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -63,6 +63,9 @@ static const struct of_device_id tsens_table[] = {
}, {
.compatible = "qcom,msm8996-tsens",
.data = &data_8996,
+ }, {
+ .compatible = "qcom,tsens-v1",
+ .data = &data_tsens_v1,
}, {
.compatible = "qcom,tsens-v2",
.data = &data_tsens_v2,
diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h
index 1cef2b8431eb..4a37da63afa2 100644
--- a/drivers/thermal/qcom/tsens.h
+++ b/drivers/thermal/qcom/tsens.h
@@ -373,6 +373,9 @@ extern const struct tsens_plat_data data_8960;
/* TSENS v0.1 targets */
extern const struct tsens_plat_data data_8916, data_8974;
+/* TSENS v1 targets */
+extern const struct tsens_plat_data data_tsens_v1;
+
/* TSENS v2 targets */
extern const struct tsens_plat_data data_8996, data_tsens_v2;
--
2.17.1
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