All of lore.kernel.org
 help / color / mirror / Atom feed
From: Robert Marko <robimarko@gmail.com>
To: amitk@kernel.org, thara.gopinath@linaro.org, agross@kernel.org,
	bjorn.andersson@linaro.org, rafael@kernel.org,
	daniel.lezcano@linaro.org, rui.zhang@intel.com,
	robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Robert Marko <robimarko@gmail.com>
Subject: [PATCH v3 2/5] drivers: thermal: tsens: Add support for combined interrupt
Date: Tue,  3 May 2022 22:05:27 +0200	[thread overview]
Message-ID: <20220503200530.4019673-2-robimarko@gmail.com> (raw)
In-Reply-To: <20220503200530.4019673-1-robimarko@gmail.com>

Despite using tsens v2.3 IP, IPQ8074 and IPQ6018 only have one IRQ for
signaling both up/low and critical trips.

Signed-off-by: Robert Marko <robimarko@gmail.com>
---
 drivers/thermal/qcom/tsens-8960.c |  1 +
 drivers/thermal/qcom/tsens-v0_1.c |  1 +
 drivers/thermal/qcom/tsens-v1.c   |  1 +
 drivers/thermal/qcom/tsens-v2.c   |  1 +
 drivers/thermal/qcom/tsens.c      | 37 ++++++++++++++++++++++++++-----
 drivers/thermal/qcom/tsens.h      |  2 ++
 6 files changed, 37 insertions(+), 6 deletions(-)

diff --git a/drivers/thermal/qcom/tsens-8960.c b/drivers/thermal/qcom/tsens-8960.c
index 67c1748cdf73..ee584e5b07e5 100644
--- a/drivers/thermal/qcom/tsens-8960.c
+++ b/drivers/thermal/qcom/tsens-8960.c
@@ -269,6 +269,7 @@ static const struct tsens_ops ops_8960 = {
 static struct tsens_features tsens_8960_feat = {
 	.ver_major	= VER_0,
 	.crit_int	= 0,
+	.combo_int	= 0,
 	.adc		= 1,
 	.srot_split	= 0,
 	.max_sensors	= 11,
diff --git a/drivers/thermal/qcom/tsens-v0_1.c b/drivers/thermal/qcom/tsens-v0_1.c
index f136cb350238..6effb822bf3c 100644
--- a/drivers/thermal/qcom/tsens-v0_1.c
+++ b/drivers/thermal/qcom/tsens-v0_1.c
@@ -539,6 +539,7 @@ static int calibrate_9607(struct tsens_priv *priv)
 static struct tsens_features tsens_v0_1_feat = {
 	.ver_major	= VER_0_1,
 	.crit_int	= 0,
+	.combo_int	= 0,
 	.adc		= 1,
 	.srot_split	= 1,
 	.max_sensors	= 11,
diff --git a/drivers/thermal/qcom/tsens-v1.c b/drivers/thermal/qcom/tsens-v1.c
index 573e261ccca7..a4f561a6e582 100644
--- a/drivers/thermal/qcom/tsens-v1.c
+++ b/drivers/thermal/qcom/tsens-v1.c
@@ -302,6 +302,7 @@ static int calibrate_8976(struct tsens_priv *priv)
 static struct tsens_features tsens_v1_feat = {
 	.ver_major	= VER_1_X,
 	.crit_int	= 0,
+	.combo_int	= 0,
 	.adc		= 1,
 	.srot_split	= 1,
 	.max_sensors	= 11,
diff --git a/drivers/thermal/qcom/tsens-v2.c b/drivers/thermal/qcom/tsens-v2.c
index b293ed32174b..129cdb247381 100644
--- a/drivers/thermal/qcom/tsens-v2.c
+++ b/drivers/thermal/qcom/tsens-v2.c
@@ -31,6 +31,7 @@
 static struct tsens_features tsens_v2_feat = {
 	.ver_major	= VER_2_X,
 	.crit_int	= 1,
+	.combo_int	= 0,
 	.adc		= 0,
 	.srot_split	= 1,
 	.max_sensors	= 16,
diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index 154d3cb19c88..69b6f7b97e9e 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -532,6 +532,26 @@ static irqreturn_t tsens_irq_thread(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
+/**
+ * tsens_combined_irq_thread - Threaded interrupt handler for combined interrupts
+ * @irq: irq number
+ * @data: tsens controller private data
+ *
+ * Handle the combined interrupt as if it were 2 separate interrupts, so call the
+ * critical handler first and then the up/low one.
+ *
+ * Return: IRQ_HANDLED
+ */
+static irqreturn_t tsens_combined_irq_thread(int irq, void *data)
+{
+	irqreturn_t ret;
+
+	ret = tsens_critical_irq_thread(irq, data);
+	ret = tsens_irq_thread(irq, data);
+
+	return ret;
+}
+
 static int tsens_set_trips(void *_sensor, int low, int high)
 {
 	struct tsens_sensor *s = _sensor;
@@ -1080,13 +1100,18 @@ static int tsens_register(struct tsens_priv *priv)
 				   tsens_mC_to_hw(priv->sensor, 0));
 	}
 
-	ret = tsens_register_irq(priv, "uplow", tsens_irq_thread);
-	if (ret < 0)
-		return ret;
+	if (priv->feat->combo_int) {
+		ret = tsens_register_irq(priv, "combined",
+					 tsens_combined_irq_thread);
+	} else {
+		ret = tsens_register_irq(priv, "uplow", tsens_irq_thread);
+		if (ret < 0)
+			return ret;
 
-	if (priv->feat->crit_int)
-		ret = tsens_register_irq(priv, "critical",
-					 tsens_critical_irq_thread);
+		if (priv->feat->crit_int)
+			ret = tsens_register_irq(priv, "critical",
+						 tsens_critical_irq_thread);
+	}
 
 	return ret;
 }
diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h
index 1471a2c00f15..4614177944d6 100644
--- a/drivers/thermal/qcom/tsens.h
+++ b/drivers/thermal/qcom/tsens.h
@@ -495,6 +495,7 @@ enum regfield_ids {
  * struct tsens_features - Features supported by the IP
  * @ver_major: Major number of IP version
  * @crit_int: does the IP support critical interrupts?
+ * @combo_int: does the IP use one IRQ for up, low and critical thresholds?
  * @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?
@@ -504,6 +505,7 @@ enum regfield_ids {
 struct tsens_features {
 	unsigned int ver_major;
 	unsigned int crit_int:1;
+	unsigned int combo_int:1;
 	unsigned int adc:1;
 	unsigned int srot_split:1;
 	unsigned int has_watchdog:1;
-- 
2.35.1


  reply	other threads:[~2022-05-03 20:05 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-03 20:05 [PATCH v3 1/5] dt-bindings: thermal: tsens: Add ipq8074 compatible Robert Marko
2022-05-03 20:05 ` Robert Marko [this message]
2022-05-03 20:05 ` [PATCH v3 3/5] drivers: thermal: tsens: allow configuring min and max trips Robert Marko
2022-05-03 20:05 ` [PATCH v3 4/5] drivers: thermal: tsens: add IPQ8074 support Robert Marko
2022-05-03 20:05 ` [PATCH v3 5/5] arm64: dts: ipq8074: add thermal nodes Robert Marko

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220503200530.4019673-2-robimarko@gmail.com \
    --to=robimarko@gmail.com \
    --cc=agross@kernel.org \
    --cc=amitk@kernel.org \
    --cc=bjorn.andersson@linaro.org \
    --cc=daniel.lezcano@linaro.org \
    --cc=devicetree@vger.kernel.org \
    --cc=krzysztof.kozlowski+dt@linaro.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=rafael@kernel.org \
    --cc=robh+dt@kernel.org \
    --cc=rui.zhang@intel.com \
    --cc=thara.gopinath@linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.