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The Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs expose the
temperature calibration via SMC SIP and do not have a reset for the
TSU peripheral, and use different minimum and maximum temperature values
compared to the already supported RZ/G3E.
Although the calibration data is stored in an OTP memory, the OTP itself
is not memory-mapped, access to it is done through an OTP controller.
The OTP controller is only accessible from the secure world,
but the temperature calibration data stored in the OTP is exposed via
SMC.
Add support for retrieving the calibration data using arm_smcc_smc().
Add a compatible for RZ/T2H, RZ/N2H can use it as a fallback.
Reviewed-by: John Madieu <john.madieu.xa@bp.renesas.com>
Tested-by: John Madieu <john.madieu.xa@bp.renesas.com>
Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20260108195223.193531-6-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs expose the
temperature calibration data via SMC SIP calls.
To prepare for supporting these SoCs, do the following changes.
Rename rzg3e_thermal_parse_dt() to rzg3e_thermal_get_syscon_trim().
Move the syscon usage out of rzg3e_thermal_get_calibration() and into
rzg3e_thermal_get_syscon_trim() and remove single-use variables from the
private state.
Place a pointer to rzg3e_thermal_get_syscon_trim() into the
chip-specific struct, and use it in the probe function to retrieve the
calibration values.
Now that syscon usage has been moved out of
rzg3e_thermal_get_calibration(), remove it and inline the calibration
validation into the probe function.
Also, reuse the TSU_CODE_MAX macro to mask the calibration values, as
GEMASK(11, 0) and 0xFFF are equivalent, and replace the hardcoded 0xFFF
with TSU_CODE_MAX in the calibration validation.
Reviewed-by: John Madieu <john.madieu.xa@bp.renesas.com>
Tested-by: John Madieu <john.madieu.xa@bp.renesas.com>
Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260108195223.193531-4-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs have
different minimum and maximum temperatures compared to the already
supported RZ/G3E.
Prepare for them by moving these into a chip-specific struct.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: John Madieu <john.madieu.xa@bp.renesas.com>
Tested-by: John Madieu <john.madieu.xa@bp.renesas.com>
Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Link: https://patch.msgid.link/20260108195223.193531-3-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs do not have a
reset line.
Prepare for them by making it optional.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: John Madieu <john.madieu.xa@bp.renesas.com>
Tested-by: John Madieu <john.madieu.xa@bp.renesas.com>
Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Link: https://patch.msgid.link/20260108195223.193531-2-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Convert the Renesas R-Car Gen3 thermal driver from SIMPLE_DEV_PM_OPS()
to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr(). This lets us drop the
__maybe_unused annotation from its resume callback, and reduces kernel
size in case CONFIG_PM or CONFIG_PM_SLEEP is disabled.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://patch.msgid.link/813ad36fdc8561cf1c396230436e8ff3ff903a1f.1763117455.git.geert+renesas@glider.be
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Convert the Renesas R-Car thermal driver from SIMPLE_DEV_PM_OPS() to
DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr(). This lets us drop the
check for CONFIG_PM_SLEEP, and reduces kernel size in case CONFIG_PM or
CONFIG_PM_SLEEP is disabled, while increasing build coverage.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://patch.msgid.link/ee03ec71d10fd589e7458fa1b0ada3d3c19dbb54.1763117351.git.geert+renesas@glider.be
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comment
The R-Car Gen3 thermal driver supports both R-Car Gen3 and Gen4 SoCs
as well as RZ/G2. Update the driver comment. No functional change.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://patch.msgid.link/20251110143029.10940-1-marek.vasut+renesas@mailbox.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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- Restore sort order in MAINTAINERS and Kconfig,
- Remove empty trailing line from Makefile.
Fixes: 19d3a401a617c68e ("thermal/drivers/renesas/rzg3e: Add thermal driver for the Renesas RZ/G3E SoC")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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When applied the change commit 19d3a401a617, a conflict appeared
resulting into a manual fix. However the new file rzg3e_thermal.c was
not added but stayed locally in source tree and miss to be merged with
the entire change.
Fix this by adding the file back.
Fixes: 19d3a401a617 ("Add thermal driver for the Renesas RZ/G3E SoC")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202509272225.sARVqv2G-lkp@intel.com
Signed-off-by: John Madieu <john.madieu.xa@bp.renesas.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The RZ/G3E SoC integrates a Temperature Sensor Unit (TSU) block designed
to monitor the chip's junction temperature. This sensor is connected to
channel 1 of the APB port clock/reset and provides temperature measurements.
It also requires calibration values stored in the system controller registers
for accurate temperature measurement. Add a driver for the Renesas RZ/G3E TSU.
[ dlezcano: Fixed conflict with "renesas: Add support for RZ/G3S" ]
Signed-off-by: John Madieu <john.madieu.xa@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20250917170202.197929-3-john.madieu.xa@bp.renesas.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The Renesas RZ/G3S SoC features a Thermal Sensor Unit (TSU) that reports
the junction temperature. The temperature is reported through a dedicated
ADC channel. Add a driver for the Renesas RZ/G3S TSU.
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20250810122125.792966-3-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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S4 was added first so it was assumed to be the blueprint for R-Car Gen4.
It turned out now, that S4 is a special mix between Gen3 and Gen4. V4H
and V4M are the similar ones as confirmed by HW engineers.
So, rename the S4 entry to be specific instead of generic. Rename the
V4H entry to be the new generic one, so V4M will use it as well now.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20250911070254.2214-2-wsa+renesas@sang-engineering.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The R-Car Gen3 thermal driver supports both R-Car Gen3 and Gen4 SoCs.
Update the Kconfig entry.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20250905193322.148115-1-marek.vasut+renesas@mailbox.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Fix typo to millidegree Celsius. This aligns the comment with
another comment later on the same function. No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://lore.kernel.org/r/20250907154148.171496-1-marek.vasut+renesas@mailbox.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Add default trimming values for the four temperature sensors located
in Renesas R-Car V4H Working Sample SoC. The trimming values are
identical for all four THS temperature sensors.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20250625181739.28391-2-marek.vasut+renesas@mailbox.org
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The Working Sample R-Car SoCs may not yet have thermal sensor trimming
values programmed into fuses, those fuses are blank instead. For such
SoCs, the driver includes fallback trimming values. Those values are
currently applied to all SoCs which use this driver.
Introduce support for per-SoC fallback trimming values in preparation
for SoCs which do not use these current trimming values. No functional
change is intended here.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20250625181739.28391-1-marek.vasut+renesas@mailbox.org
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'struct thermal_zone_device_ops' are not modified in these drivers.
Constifying these structures moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.
On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
28116 5168 128 33412 8284 drivers/thermal/armada_thermal.o
After:
=====
text data bss dec hex filename
28244 5040 128 33412 8284 drivers/thermal/armada_thermal.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> # For Armada
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/5bba3bf0139e2418b306a0f9a2f1f81ef49e88a6.1748165978.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The hardware calibration is fused on some, but not all, Gen3 and Gen4
boards. The calibrations values are the same on both generations but
located at different register offsets.
Instead of having duplicated logic to read the and store the values
create structure to hold the register parameters and have a common
function do the reading.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20250305174631.4119374-3-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The style of the driver is to use lowercase hex constants, correct the
few outlines.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20250305174631.4119374-2-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/thermal to use .remove(), with
the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.
On the way make a few whitespace changes to make indention consistent.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/20241019163412.304422-2-u.kleine-koenig@baylibre.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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There is a extraneous space after a newline in a dev_err message.
Remove it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20240901162719.144406-1-colin.i.king@gmail.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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The only existing caller of thermal_zone_get_num_trips(), which is
rcar_gen3_thermal_probe(), uses this function to put the number of
trip points into a kernel log message, but this information is also
available from the thermal sysfs interface.
For this reason, remove the thermal_zone_get_num_trips() call from
rcar_gen3_thermal_probe() and drop the former altogether.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://patch.msgid.link/2636988.Lt9SDvczpP@rjwysocki.net
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The R-Car thermal driver depends on OF, describe this.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240506154011.344324-3-niklas.soderlund+renesas@ragnatech.se
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Move all Renesas thermal drivers to a vendor specific directory.
All drivers are moved verbatim apart from the updated include path for
thermal_hwmon.h.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240506154011.344324-2-niklas.soderlund+renesas@ragnatech.se
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