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Message-ID: <1693250307-8910-4-git-send-email-quic_srichara@quicinc.com>
Date: Tue, 29 Aug 2023 00:48:23 +0530
From: Sricharan Ramabadhran <quic_srichara@...cinc.com>
To: <agross@...nel.org>, <andersson@...nel.org>,
<konrad.dybcio@...aro.org>, <srinivas.kandagatla@...aro.org>,
<robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
<conor+dt@...nel.org>, <thara.gopinath@...il.com>,
<rafael@...nel.org>, <daniel.lezcano@...aro.org>,
<linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>,
<quic_srichara@...cinc.com>
Subject: [PATCH 3/7] thermal/drivers/qcom/tsens: Add support for IPQ5018 tsens
IPQ5018 has tsens IP V1.0, 4 sensors and 1 interrupt.
The soc does not have a RPM, hence tsens has to be reset and
enabled in the driver init. Adding the driver support for same.
Signed-off-by: Sricharan Ramabadhran <quic_srichara@...cinc.com>
---
drivers/thermal/qcom/tsens-v1.c | 115 ++++++++++++++++++++++++++++++++
drivers/thermal/qcom/tsens.h | 2 +-
2 files changed, 116 insertions(+), 1 deletion(-)
diff --git a/drivers/thermal/qcom/tsens-v1.c b/drivers/thermal/qcom/tsens-v1.c
index dc1c4ae2d8b0..a74dae69408b 100644
--- a/drivers/thermal/qcom/tsens-v1.c
+++ b/drivers/thermal/qcom/tsens-v1.c
@@ -42,6 +42,59 @@ static struct tsens_legacy_calibration_format tsens_qcs404_nvmem = {
},
};
+struct tsens_legacy_calibration_format tsens_ipq5018_nvmem = {
+ .base_len = 8,
+ .base_shift = 2,
+ .sp_len = 6,
+ .mode = { 0, 8 },
+ .invalid = { 0, 2 },
+ .base = { { 0, 11 }, { 0, 19 } },
+ .sp = {
+ { { 0, 27 }, { 1, 1 } },
+ { { 1, 7 }, { 1, 13 } },
+ { { 1, 19 }, { 1, 25 } },
+ { { 1, 31 }, { 2, 5 } },
+ { { 2, 11 }, { 3, 0 } },
+ },
+};
+
+static void fixup_ipq5018_points(int mode, u32 *p1, u32 *p2)
+{
+ if (mode == NO_PT_CALIB) {
+ p1[0] = 403;
+ p2[0] = 688;
+ p1[1] = 390;
+ p2[1] = 674;
+ p1[2] = 341;
+ p2[2] = 635;
+ p1[3] = 387;
+ p2[3] = 673;
+ p1[4] = 347;
+ p2[4] = 639;
+ }
+}
+
+static int calibrate_ipq5018(struct tsens_priv *priv)
+{
+ u32 p1[10], p2[10];
+ u32 *qfprom_cdata;
+ int mode;
+
+ qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
+ if (IS_ERR(qfprom_cdata))
+ return PTR_ERR(qfprom_cdata);
+
+ mode = tsens_read_calibration_legacy(priv, &tsens_ipq5018_nvmem,
+ p1, p2,
+ qfprom_cdata, NULL);
+
+ fixup_ipq5018_points(mode, p1, p2);
+ compute_intercept_slope(priv, p1, p2, mode);
+ kfree(qfprom_cdata);
+
+ return 0;
+}
+
static int calibrate_v1(struct tsens_priv *priv)
{
u32 p1[10], p2[10];
@@ -79,6 +132,18 @@ static struct tsens_features tsens_v1_feat = {
.trip_max_temp = 120000,
};
+static struct tsens_features tsens_v1_ipq5018_feat = {
+ .ver_major = VER_1_X,
+ .crit_int = 0,
+ .combo_int = 0,
+ .adc = 1,
+ .srot_split = 1,
+ .max_sensors = 11,
+ .trip_min_temp = -40000,
+ .trip_max_temp = 120000,
+ .no_early_init = 1,
+};
+
static const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = {
/* ----- SROT ------ */
/* VERSION */
@@ -150,6 +215,43 @@ static int __init init_8956(struct tsens_priv *priv) {
return init_common(priv);
}
+static int init_ipq5018(struct tsens_priv *priv)
+{
+ int ret;
+ u32 mask;
+
+ init_common(priv);
+ if (!priv->tm_map)
+ return -ENODEV;
+
+ ret = regmap_field_write(priv->rf[TSENS_SW_RST], 1);
+ if (ret) {
+ dev_err(priv->dev, "Reset failed\n");
+ return ret;
+ }
+
+ mask = GENMASK(10, 0);
+ ret = regmap_field_update_bits(priv->rf[SENSOR_EN], mask, mask);
+ if (ret) {
+ dev_err(priv->dev, "Sensor Enable failed\n");
+ return ret;
+ }
+
+ ret = regmap_field_write(priv->rf[TSENS_EN], 1);
+ if (ret) {
+ dev_err(priv->dev, "Enable failed\n");
+ return ret;
+ }
+
+ ret = regmap_field_write(priv->rf[TSENS_SW_RST], 0);
+ if (ret) {
+ dev_err(priv->dev, "Reset failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
static const struct tsens_ops ops_generic_v1 = {
.init = init_common,
.calibrate = calibrate_v1,
@@ -187,3 +289,16 @@ struct tsens_plat_data data_8976 = {
.feat = &tsens_v1_feat,
.fields = tsens_v1_regfields,
};
+
+const struct tsens_ops ops_ipq5018 = {
+ .init = init_ipq5018,
+ .calibrate = calibrate_ipq5018,
+ .get_temp = get_temp_tsens_valid,
+};
+
+struct tsens_plat_data data_ipq5018 = {
+ .num_sensors = 5,
+ .ops = &ops_ipq5018,
+ .feat = &tsens_v1_ipq5018_feat,
+ .fields = tsens_v1_regfields,
+};
diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h
index fb73e3dd0de9..5f0bdbeedf90 100644
--- a/drivers/thermal/qcom/tsens.h
+++ b/drivers/thermal/qcom/tsens.h
@@ -645,7 +645,7 @@ extern struct tsens_plat_data data_8960;
extern struct tsens_plat_data data_8226, data_8909, data_8916, data_8939, data_8974, data_9607;
/* TSENS v1 targets */
-extern struct tsens_plat_data data_tsens_v1, data_8976, data_8956;
+extern struct tsens_plat_data data_tsens_v1, data_8976, data_8956, data_ipq5018;
/* TSENS v2 targets */
extern struct tsens_plat_data data_8996, data_ipq8074, data_tsens_v2;
--
2.34.1
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