linux-kernel - [PATCH v3 6/6] thermal: brcmstb_thermal: Register different ops per process

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 14 Jan 2020 11:06:07 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-kernel@...r.kernel.org, daniel.lezcano@...aro.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Markus Mayer <mmayer@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com (maintainer:BROADCOM STB AVS TMON
        DRIVER), Zhang Rui <rui.zhang@...el.com>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-pm@...r.kernel.org (open list:BROADCOM STB AVS TMON DRIVER),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM BCM7XXX
        ARM ARCHITECTURE)
Subject: [PATCH v3 6/6] thermal: brcmstb_thermal: Register different ops per process

Since we do not have interrupts on BCM7216, we cannot have trip point
crossing, the thermal subsystem expects us to provide a NULL set_trips
operation in that case, so make it possible to provide per-process
thermal_zone_of_device_ops

Reviewed-by: Amit Kucheria <amit.kucheria@...aro.org>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/thermal/broadcom/brcmstb_thermal.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/broadcom/brcmstb_thermal.c b/drivers/thermal/broadcom/brcmstb_thermal.c
index 6ded4b9c53be..8df5edef1ded 100644
--- a/drivers/thermal/broadcom/brcmstb_thermal.c
+++ b/drivers/thermal/broadcom/brcmstb_thermal.c
@@ -105,6 +105,7 @@ static struct avs_tmon_trip avs_tmon_trips[] = {
 struct brcmstb_thermal_params {
 	unsigned int offset;
 	unsigned int mult;
+	const struct thermal_zone_of_device_ops *of_ops;
 };
 
 struct brcmstb_thermal_priv {
@@ -287,19 +288,25 @@ static int brcmstb_set_trips(void *data, int low, int high)
 	return 0;
 }
 
-static const struct thermal_zone_of_device_ops of_ops = {
+static const struct thermal_zone_of_device_ops brcmstb_16nm_of_ops = {
 	.get_temp	= brcmstb_get_temp,
-	.set_trips	= brcmstb_set_trips,
 };
 
 static const struct brcmstb_thermal_params brcmstb_16nm_params = {
 	.offset	= 457829,
 	.mult	= 557,
+	.of_ops	= &brcmstb_16nm_of_ops,
+};
+
+static const struct thermal_zone_of_device_ops brcmstb_28nm_of_ops = {
+	.get_temp	= brcmstb_get_temp,
+	.set_trips	= brcmstb_set_trips,
 };
 
 static const struct brcmstb_thermal_params brcmstb_28nm_params = {
 	.offset	= 410040,
 	.mult	= 487,
+	.of_ops	= &brcmstb_28nm_of_ops,
 };
 
 static const struct of_device_id brcmstb_thermal_id_table[] = {
@@ -311,6 +318,7 @@ MODULE_DEVICE_TABLE(of, brcmstb_thermal_id_table);
 
 static int brcmstb_thermal_probe(struct platform_device *pdev)
 {
+	const struct thermal_zone_of_device_ops *of_ops;
 	struct thermal_zone_device *thermal;
 	struct brcmstb_thermal_priv *priv;
 	struct resource *res;
@@ -331,9 +339,10 @@ static int brcmstb_thermal_probe(struct platform_device *pdev)
 
 	priv->dev = &pdev->dev;
 	platform_set_drvdata(pdev, priv);
+	of_ops = priv->temp_params->of_ops;
 
 	thermal = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, priv,
-						       &of_ops);
+						       of_ops);
 	if (IS_ERR(thermal)) {
 		ret = PTR_ERR(thermal);
 		dev_err(&pdev->dev, "could not register sensor: %d\n", ret);
-- 
2.17.1