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Now that a generic infrastructure is in place, it's possible to support
the Armada 380 SoC thermal sensor. This sensor is similar to the one
available in the already supported SoCs, with its specific temperature formula
and specific sensor initialization.
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Now that a generic infrastructure is in place, it's possible to support
the new Armada 375 SoC thermal sensor. This sensor is similar to the one
available in the already supported SoCs, with its specific temperature formula
and specific sensor initialization.
In addition, we also add support for the Z1 SoC stepping, which needs
an initialization-quirk to work properly.
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
In order to support inverted-formula thermal sensor readout, this commit
introduces an 'inverted' field in the SoC-specific structure which
allows to specify an inversion of the temperature formula.
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
In order to perform SoC-specific quirks on platforms that need them,
this commit adds a new parameter to the init_sensor() function.
This will be used to support early silicons of the Armada 375 SoC,
to workaround some hardware issues.
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
In order to support similar SoC where the sensor value and valid
bit can have different shifts and/or mask, we add such fields to the
per-variant structure, instead of having the values hardcoded.
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
In order to support other similar SoC, with different sensor
coefficients, this commit adds the coeficients to the per-variant
structure, instead of having the formula hardcoded.
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
As preparation work to add a generic infrastructure to support
different SoC variants, the armada_thermal_ops will be used
to host the SoC-specific fields, such as formula values and
register shifts.
For this reason, the name armada_thermal_ops is no longer suitable,
and this commit replaces it with armada_thermal_data.
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
'armada_thermal_id_table' is always compiled in and the driver
is dependent on OF. Hence use of of_match_ptr is unnecessary.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
devm_ioremap_resource does sanity checks on the given resource.
No need to duplicate this in the driver.
CC: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
CC: Vincenzo Frascino <vincenzo.frascino@st.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This driver supports both Armada 370 and Armada XP SoC
thermal management controllers.
Armada 370 has a register to check a valid temperature, whereas
Armada XP does not. Each has a different initialization (i.e. calibration)
function. The temperature conversion formula is the same for both.
The controller present in each SoC have a very similar feature set,
so it corresponds to have one driver to support both of them.
Although this driver may present similarities to Dove and Kirkwood
thermal driver, the exact differences and coincidences are not fully
known. For this reason, support is given through a separate driver.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
