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This adds the thermal sensor driver for the Broadcom BCM2711 SoC,
which is placed on the Raspberry Pi 4. The driver only provides
SoC temperature reading so far.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1578941778-23321-3-git-send-email-stefan.wahren@i2se.com
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Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stingray SoC has six temperature sensor and those are
configured, controlled and accessed to read temperature
and update in DDR memory using m0 firmware.
All six sensors has been given 4 bytes of memory in DDR
to write temperature in millivolts.
This thermal driver read temperature values from DDR
because no direct access to sensors.
Like this all temparature sensors are monitored and
trips at critical temperature.
If driver can't handle thermal runaways because of
any unknown reason, then firmware in m0 Processor
will handle.
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Reviewed-by: Vikram Prakash <vikram.prakash@broadcom.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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The AVS TMON core provides temperature readings, a pair of configurable
high- and low-temperature threshold interrupts, and an emergency
over-temperature chip reset. The driver utilizes the first two to
provide temperature readings and high-temperature notifications to
applications. The over-temperature reset is not exposed to
applications; this reset threshold is critical to the system and should
be set with care within the bootloader.
Applications may choose to utilize the notification mechanism, the
temperature reading mechanism (e.g., through polling), or both.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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Tweak the Kconfig description to mention support for NSP and make the
default on for iProc based platforms.
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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We already have 2 Broadcom drivers and at least 1 more is coming. This
made us create broadcom subdirectory where bcm2835 should be moves now.
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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Northstar is a SoC family commonly used in home routers. This commit
adds a driver for checking CPU temperature. As Northstar Plus seems to
also have this IP block this new symbol gets ARCH_BCM_IPROC dependency.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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