This patchset adds the support for the thermal sensor in the recently
introduced Armada 375 and 38x SoC. Compared to the previous patchset
version, this v2 introduces the A380 SoC support.
The first five patches are preparation work. They add a generic
infrastructure that allows to support similar thermal sensors in
a non-intrusive way.
Patches six and seven uses this infrastructure to support the
Armada 375 and 380 SoC thermal sensor.
Since there are some issues in the Armada 375 Z1 SoC thermal sensor,
patch eight adds a quirk to workaround such issues. The Z1 silicon stepping
is detected and the compatible string is updated, so the driver can apply
sensor initialization workarounds.
In addition, the quirk moves the offset of the thermal control register,
and allows to specifiy the correct (A0 stepping) offset in the devicetree.
This quirk is applied only for the A375-DB board, being the only board known
to have the problematic Z1 SoC.
Finally, the last two patches enables the thermal sensor in the devicetree.
for the Armada 375 A0 stepping SoC, and the Armada 380/385 SoCs.
The series applies on v3.15-rc1, and has been tested on A375-DB board
and A385-DB board.
Feedback and comments are welcome!
Changes from v1:
* Introduced the Armada 380 support. In order to support this in a clean
way, the 'inverted' field was added.
* Cleaned the A375 workaround in the thermal driver, by detecting the
device compatible string, as suggested by Jason Cooper.
* Added details about the register offset in the Z1 stepping to the
binding documentation as requested by Jason Cooper.
Ezequiel Garcia (10):
thermal: armada: Rename armada_thermal_ops struct
thermal: armada: Add infrastructure to support generic formulas
thermal: armada: Add generic infrastructure to handle the sensor
thermal: armada: Pass the platform_device to init_sensor()
thermal: armada: Allow to specify an 'inverted readout' sensor
thermal: armada: Support Armada 375 SoC
thermal: armada: Support Armada 380 SoC
ARM: mvebu: Add thermal quirk for the Armada 375 DB board
ARM: mvebu: Enable the thermal sensor in Armada 375 SoC
ARM: mvebu: Enable the thermal sensor in Armada 380/385 SoC
.../devicetree/bindings/thermal/armada-thermal.txt | 12 +-
arch/arm/boot/dts/armada-375.dtsi | 6 +
arch/arm/boot/dts/armada-38x.dtsi | 6 +
arch/arm/mach-mvebu/board-v7.c | 57 ++++++++
arch/arm/mach-mvebu/mvebu-soc-id.h | 3 +
drivers/thermal/armada_thermal.c | 158 ++++++++++++++++++---
6 files changed, 222 insertions(+), 20 deletions(-)
--
1.9.1
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