linux-kernel - [PATCHv3 15/23] drivers: thermal: tsens: Introduce IP-specific max

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Message-Id: <5cfa53072a0aa76b1a37c69b64d4ed74633f0000.1553086065.git.amit.kucheria@linaro.org>
Date:   Wed, 20 Mar 2019 18:47:55 +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: [PATCHv3 15/23] drivers: thermal: tsens: Introduce IP-specific max_sensor count

The IP can support 'm' sensors while the platform can enable 'n' sensors
of the 'm' where n <= m.

Track maximum sensors supported by the IP so that we can correctly track
what subset of the sensors are supported on the platform.

Signed-off-by: Amit Kucheria <amit.kucheria@...aro.org>
---
 drivers/thermal/qcom/tsens-common.c | 4 ++--
 drivers/thermal/qcom/tsens-v0_1.c   | 1 +
 drivers/thermal/qcom/tsens-v2.c     | 1 +
 drivers/thermal/qcom/tsens.h        | 2 ++
 4 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/qcom/tsens-common.c b/drivers/thermal/qcom/tsens-common.c
index c76f8cfb25a2..5607c5cc635c 100644
--- a/drivers/thermal/qcom/tsens-common.c
+++ b/drivers/thermal/qcom/tsens-common.c
@@ -198,7 +198,7 @@ int __init init_common(struct tsens_priv *priv)
 		goto err_put_device;
 	}
 	/* now alloc regmap_fields in tm_map */
-	for (i = 0, j = LAST_TEMP_0; i < priv->num_sensors; i++, j++) {
+	for (i = 0, j = LAST_TEMP_0; i < priv->feat->max_sensors; i++, j++) {
 		priv->rf[j] = devm_regmap_field_alloc(dev, priv->tm_map,
 						      priv->fields[j]);
 		if (IS_ERR(priv->rf[j])) {
@@ -206,7 +206,7 @@ int __init init_common(struct tsens_priv *priv)
 			goto err_put_device;
 		}
 	}
-	for (i = 0, j = VALID_0; i < priv->num_sensors; i++, j++) {
+	for (i = 0, j = VALID_0; i < priv->feat->max_sensors; i++, j++) {
 		priv->rf[j] = devm_regmap_field_alloc(dev, priv->tm_map,
 						      priv->fields[j]);
 		if (IS_ERR(priv->rf[j])) {
diff --git a/drivers/thermal/qcom/tsens-v0_1.c b/drivers/thermal/qcom/tsens-v0_1.c
index 431255bfd0ef..b3a63d7b19ea 100644
--- a/drivers/thermal/qcom/tsens-v0_1.c
+++ b/drivers/thermal/qcom/tsens-v0_1.c
@@ -324,6 +324,7 @@ const struct tsens_features tsens_v0_1_feat = {
 	.crit_int	= 0,
 	.adc		= 1,
 	.srot_split	= 1,
+	.max_sensors	= 11,
 };
 
 const struct reg_field tsens_v0_1_regfields[MAX_REGFIELDS] = {
diff --git a/drivers/thermal/qcom/tsens-v2.c b/drivers/thermal/qcom/tsens-v2.c
index 4b98dbe4e3c3..f3eb8661cf7a 100644
--- a/drivers/thermal/qcom/tsens-v2.c
+++ b/drivers/thermal/qcom/tsens-v2.c
@@ -88,6 +88,7 @@ const struct tsens_features tsens_v2_feat = {
 	.crit_int	= 1,
 	.adc		= 0,
 	.srot_split	= 1,
+	.max_sensors	= 16,
 };
 
 const struct reg_field tsens_v2_regfields[MAX_REGFIELDS] = {
diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h
index 527c42cfd2d5..080e15a09ac2 100644
--- a/drivers/thermal/qcom/tsens.h
+++ b/drivers/thermal/qcom/tsens.h
@@ -242,12 +242,14 @@ enum regfield_ids {
  * @adc:      do the sensors only output adc code (instead of temperature)?
  * @srot_split: does the IP neatly splits the register space into SROT and TM,
  *              with SROT only being available to secure boot firmware?
+ * @max_sensors: maximum sensors supported by this version of the IP
  */
 struct tsens_features {
 	unsigned int ver_major;
 	unsigned int crit_int:1;
 	unsigned int adc:1;
 	unsigned int srot_split:1;
+	unsigned int max_sensors;
 };
 
 /**
-- 
2.17.1