netdev - [RFC 4/8] thermal: core: Introduce THERMAL_DEVICE

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Date:   Tue,  7 Apr 2020 19:49:22 +0200
From:   Andrzej Pietrasiewicz <andrzej.p@...labora.com>
To:     linux-pm@...r.kernel.org
Cc:     Zhang Rui <rui.zhang@...el.com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>, Jiri Pirko <jiri@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>,
        "David S . Miller" <davem@...emloft.net>,
        Peter Kaestle <peter@...e.net>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Support Opensource <support.opensource@...semi.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Allison Randal <allison@...utok.net>,
        Enrico Weigelt <info@...ux.net>,
        Gayatri Kammela <gayatri.kammela@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-acpi@...r.kernel.org, netdev@...r.kernel.org,
        platform-driver-x86@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kernel@...labora.com,
        Andrzej Pietrasiewicz <andrzej.p@...labora.com>
Subject: [RFC 4/8] thermal: core: Introduce THERMAL_DEVICE_INITIAL

Add a new mode: THERMAL_DEVICE_INITIAL. It is dedicated to handle devices
which must be initially DISABLED, but which are polled at startup
nonetheless. THERMAL_DEVICE_INITIAL shall be reported as "enabled" in
sysfs to keep the userspace interface intact.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@...labora.com>
---
 drivers/thermal/thermal_sysfs.c | 4 ++--
 include/linux/thermal.h         | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index aa99edb4dff7..6bfef21abce4 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -59,8 +59,8 @@ mode_show(struct device *dev, struct device_attribute *attr, char *buf)
 	if (result)
 		return result;
 
-	return sprintf(buf, "%s\n", mode == THERMAL_DEVICE_ENABLED ? "enabled"
-		       : "disabled");
+	return sprintf(buf, "%s\n", mode == THERMAL_DEVICE_DISABLED ? "disabled"
+		       : "enabled");
 }
 
 static ssize_t
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 126913c6a53b..1bc6b7998093 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -48,8 +48,9 @@ struct thermal_cooling_device;
 struct thermal_instance;
 
 enum thermal_device_mode {
-	THERMAL_DEVICE_DISABLED = 0,
+	THERMAL_DEVICE_INITIAL = 0,
 	THERMAL_DEVICE_ENABLED,
+	THERMAL_DEVICE_DISABLED,
 };
 
 enum thermal_trip_type {
-- 
2.17.1