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The ROHM BD96806 is from the software perspective almost identical to
the ROHM BD96802. The main difference is different voltage tuning
ranges.
Add support differentiating these PMICs and provide correct voltages
for both models.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/5d15660e0e71c70fda8df1694bec0e4fba7f251e.1744090658.git.mazziesaccount@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The ROHM BD96805 is from the software perspective almost identical to
the ROHM BD96801. The main difference is different voltage tuning
ranges.
Add support differentiating these PMICs and provide correct voltages
for both models.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/eab1369557b14a9762c41a5429d1ac87a4644d9e.1744090658.git.mazziesaccount@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The ROHM BD96802 PMIC is primarily intended to be used as a companion
PMIC extending the capabilities of the BD96802 but it can be used on
it's own as well. When used as a companion PMIC, the start-up and
shut-down sequences are usually intitiated by the master PMIC using IF
pins.
The BD96802 looks from the digital interface point of view pretty much
like a reduced version of BD96801. It includes only 2 BUCKs and provides
the same error protection/detection mechanisms as the BD96801. Also, the
voltage control logic is same up to the register addresses.
Add support for controlling BD96802 using the BD96801 driver.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/2fb2d0d4997c32d18bfa32cea4564352c00eebc8.1744090658.git.mazziesaccount@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The resources generated in the BD96801 MFD driver are only visible to
the sub-drivers whose resource fields they are added. This makes
abbreviating the resource name with the IC name pointless. It just adds
confusion in those sub-drivers which do not really care the exact model
that generates the IRQ but just want to know the purpose IRQ was
generated for. Thus, as a preparatory fix to simplify adding support for
ROHM BD96802 PMIC the IC name "bd96801-" prefix was dropped from the IRQ
resource names. Adapt the regulator driver to this change.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/73ec2425655ab19c9f0cf990419641ad36561590.1744090658.git.mazziesaccount@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The ROHM BD96801 "scalable PMIC" provides two physical IRQs. The ERRB
handling can in many cases be omitted because it is used to inform fatal
IRQs, which usually kill the power from the SOC.
There may however be use-cases where the SOC has a 'back-up' emergency
power source which allows some very short time of operation to try to
gracefully shut down sensitive hardware. Furthermore, it is possible the
processor controlling the PMIC is not powered by the PMIC. In such cases
handling the ERRB IRQs may be beneficial.
Add support for ERRB IRQs.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/ZzWkny4lKpY09SX5@mva-rohm
Signed-off-by: Mark Brown <broonie@kernel.org>
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Obtain the device node reference with scoped/cleanup.h and use scoped
for_each_child_of_node_scoped() to reduce error handling and make the
code a bit simpler. Add also brackets {} over outer for loop for code
readability.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240814-cleanup-h-of-node-put-regulator-v1-2-87151088b883@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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The "idesc" pointer points to the middle of rdesc[] array so it can't be
NULL. Also rdesc isn't NULL. Delete the check.
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/01cd578f-127b-4c8b-a8c6-5e11a0a2555c@stanley.mountain
Signed-off-by: Mark Brown <broonie@kernel.org>
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The ROHM BD96801 "Scalable PMIC" is an automotive grade PMIC which can
scale to different applications by allowing chaining of PMICs. The PMIC
also supports various protection features which can be configured either
to fire IRQs - or to shut down power outputs when failure is detected.
The driver implements basic voltage control and sending error
notifications.
NOTE:
The driver does not support doing configuration which require the PMIC
to be in STBY state. The omitted feature set includes setting safety
limit values, changing LDO voltages and controlling enable state for
some regulators.
Also, the ERRB IRQ is not handled.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/50cf02b046df218a21a0f9c4820531d821fc20d4.1719473802.git.mazziesaccount@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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