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Samsung's S2MPU05 PMIC is used by Exynos7870 SoC. It has 5 buck and 38
LDO regulators. Add support for this device variant in the driver.
Signed-off-by: Kaustabh Chakraborty <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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In the Linux kernel driver, all information related to LDO and BUCK
regulators are stored in descriptive arrays. This also allows multiple
variants to be supported by the same driver.
Define a struct sec_regulator_desc which holds all values required by a
regulator. Create an array of said struct containing all regulators. The
descriptors are designed to follow a style similar to what's seen in the
Linux driver, so comparing one with the other is simple.
In functions such as s2mps11_{buck,ldo}_{val,mode} these values are to
be used, make necessary modifications to pull them from the descriptors.
Since multiple variants have varying descriptors, select them from
within a switch-case block.
Functions s2mps11_{buck,ldo}_{volt2hex,hex2volt} and arrays
s2mps11_buck_{ctrl,out} are phased out as the calculations are now
hardcoded in descriptors, thusly, it reduces clutter and enhances
readability.
Two macros in s2mps11.h, S2MPS11_LDO_NUM and S2MPS11_BUCK_NUM are
removed as they are no longer being used.
Signed-off-by: Kaustabh Chakraborty <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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There are multiple PMICs by Samsung which are similar in architecture
(register layout, interface, etc.) and is possible to be driven by a
single driver. Variant specific code and data should be managed properly
in the driver.
And an enum which describes all supported variants. Pass the enum as the
device driver data. Introduce a switch-case block on the enum for any
variant specific code.
Signed-off-by: Kaustabh Chakraborty <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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exynos5422 has the s2mps11 PMIC.
s2mps11 pmic has the 10-BUCK and 38-LDO regulators.
Each IP and devices in exynos5422 can be controlled by each regulators.
This patch is support for s2mps11 regulator driver.
Signed-off-by: Jaehoon Chung <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Tested-by: Anand Moon <[email protected]>
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This driver allows I/O operations on the Samsung S2MPS11 PMIC,
which provides lots of LDO/BUCK outputs.
To enable it, update defconfig with:
- CONFIG_PMIC_S2MPS11
and additional, if were not defined:
- CONFIG_CMD_PMIC
- CONFIG_ERRNO_STR
The binding info: doc/device-tree-bindings/pmic/s2mps11.txt
Signed-off-by: Przemyslaw Marczak <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Tested-by: Anand Moon <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
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