linux-kernel - [PATCH v1 11/17] thermal: imx: Use the .should

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 for Android: free password hash cracker in your pocket

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

Message-ID: <7860434.lvqk35OSZv@rjwysocki.net>
Date: Tue, 30 Jul 2024 20:31:07 +0200
From: "Rafael J. Wysocki" <rjw@...ysocki.net>
To: Linux PM <linux-pm@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
 Linux ACPI <linux-acpi@...r.kernel.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>,
 Lukasz Luba <lukasz.luba@....com>, Zhang Rui <rui.zhang@...el.com>,
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>
Subject:
 [PATCH v1 11/17] thermal: imx: Use the .should_bind() thermal zone callback

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Make the imx_thermal driver use the .should_bind() thermal zone callback
to provide the thermal core with the information on whether or not to
bind the given cooling device to the given trip point in the given
thermal zone.  If it returns 'true', the thermal core will bind the
cooling device to the trip and the corresponding unbinding will be
taken care of automatically by the core on the removal of the involved
thermal zone or cooling device.

In the imx_thermal case, it only needs to return 'true' for the passive
trip point and it will match any cooling device passed to it, in
analogy with the old-style imx_bind() callback function.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---

This patch only depends on patch [09/17].

---
 drivers/thermal/imx_thermal.c |   20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

Index: linux-pm/drivers/thermal/imx_thermal.c
===================================================================
--- linux-pm.orig/drivers/thermal/imx_thermal.c
+++ linux-pm/drivers/thermal/imx_thermal.c
@@ -353,24 +353,16 @@ static int imx_set_trip_temp(struct ther
 	return 0;
 }

-static int imx_bind(struct thermal_zone_device *tz,
-		    struct thermal_cooling_device *cdev)
+static bool imx_should_bind(struct thermal_zone_device *tz,
+			    const struct thermal_trip *trip,
+			    struct thermal_cooling_device *cdev,
+			    struct cooling_spec *c)
 {
-	return thermal_zone_bind_cooling_device(tz, IMX_TRIP_PASSIVE, cdev,
-						THERMAL_NO_LIMIT,
-						THERMAL_NO_LIMIT,
-						THERMAL_WEIGHT_DEFAULT);
-}
-
-static int imx_unbind(struct thermal_zone_device *tz,
-		      struct thermal_cooling_device *cdev)
-{
-	return thermal_zone_unbind_cooling_device(tz, IMX_TRIP_PASSIVE, cdev);
+	return trip->type == THERMAL_TRIP_PASSIVE;
 }

 static struct thermal_zone_device_ops imx_tz_ops = {
-	.bind = imx_bind,
-	.unbind = imx_unbind,
+	.should_bind = imx_should_bind,
 	.get_temp = imx_get_temp,
 	.change_mode = imx_change_mode,
 	.set_trip_temp = imx_set_trip_temp,