linux/arch/arm/boot/dts/ti/omap/omap4-cpu-thermal.dtsi
Tony Lindgren 6469b2fead ARM: dts: ti: omap: Fix bandgap thermal cells addressing for omap3/4
Fix "thermal_sys: cpu_thermal: Failed to read thermal-sensors cells: -2"
error on boot for omap3/4. This is caused by wrong addressing in the dts
for bandgap sensor for single sensor instances.

Note that omap4-cpu-thermal.dtsi is shared across omap4/5 and dra7, so
we can't just change the addressing in omap4-cpu-thermal.dtsi.

Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fixes: a761d517bb ("ARM: dts: omap3: Add cpu_thermal zone")
Fixes: 0bbf6c54d1 ("arm: dts: add omap4 CPU thermal data")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2023-09-13 10:17:47 +03:00

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Device Tree Source for OMAP4/5 SoC CPU thermal
*
* Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com/
* Contact: Eduardo Valentin <eduardo.valentin@ti.com>
*/
#include <dt-bindings/thermal/thermal.h>
cpu_thermal: cpu_thermal {
polling-delay-passive = <250>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */
/*
* See 44xx files for single sensor addressing, omap5 and dra7 need
* also sensor ID for addressing.
*/
thermal-sensors = <&bandgap 0>;
cpu_trips: trips {
cpu_alert0: cpu_alert {
temperature = <100000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
cpu_crit: cpu_crit {
temperature = <125000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
};
};
cpu_cooling_maps: cooling-maps {
map0 {
trip = <&cpu_alert0>;
cooling-device =
<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
};