de1dd9fd21
While the majority of supplies on devices are mandatory and can't be physically omitted for electrical reasons some devices do have optional supplies and need to know if they are missing, MMC being the most common of these. Currently the core accurately reports all errors when regulators are requested since it does not know if the supply is one that must be provided even if by a regulator software does not know about or if it is one that may genuinely be disconnected. In order to allow this behaviour to be changed and stub regulators to be provided in the former case add a new regulator request function regulator_get_optional() which provides a hint to the core that the regulator may genuinely not be connected. Currently the implementation is identical to the current behaviour, future patches will add support in the core for returning stub regulators in the case where normal regulator_get() fails and the board has requested it. Signed-off-by: Mark Brown <broonie@linaro.org> Acked-by: Chris Ball <cjb@laptop.org> |
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| acpi | ||
| asm-generic | ||
| clocksource | ||
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| keys | ||
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| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
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| target | ||
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| uapi | ||
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| Kbuild | ||