Hi all, this patchset adds a new mechanism to the framework - regulators' coupling. On Odroid XU3/4 and other Exynos5422 based boards there is a case, that different devices on the board are supplied by different regulators with non-fixed voltages. If one of these devices temporarily requires higher voltage, there might occur a situation that the spread between two devices' voltages is so high, that there is a risk of changing 'high' and 'low' states on the interconnection between devices powered by those two regulators. Algorithmicaly the problem was solved by: Inderpal Singh <inderpal.s@xxxxxxxxxxx> Doug Anderson <dianders@xxxxxxxxxxxx> The discussion on that subject can be found here: https://lkml.org/lkml/2014/4/29/28 Therefore this patchset is an attempt to apply the idea to regulators core as concluded in the discussion by Mark Brown and Doug Anderson. This feature is required to enable support for generic CPUfreq and devfreq drivers for the mentioned boards. Best regards, Maciej Purski Maciej Purski (2): regulator: core: Add coupled regulators mechanism regulator: bindings: Add properties for coupled regulators .../devicetree/bindings/regulator/regulator.txt | 3 + drivers/regulator/core.c | 274 +++++++++++++++++++-- include/linux/regulator/driver.h | 16 ++ 3 files changed, 275 insertions(+), 18 deletions(-) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
