On Wed, 10 Jul 2019 at 12:03, Kamil Konieczny <k.konieczny@xxxxxxxxxxxxxxxxxxx> wrote: > > On 10.07.2019 11:00, Krzysztof Kozlowski wrote: > > On Mon, 8 Jul 2019 at 16:12, <k.konieczny@xxxxxxxxxxxxxxxxxxx> wrote: > >> > >> From: Kamil Konieczny <k.konieczny@xxxxxxxxxxxxxxxxxxx> > >> > >> Hi, > >> > >> The main purpose of this patch series is to add coupled regulators for > >> Exynos5422/5800 to keep constrain on voltage difference between vdd_arm > >> and vdd_int to be at most 300mV. In exynos-bus instead of using > >> regulator_set_voltage_tol() with default voltage tolerance it should be > >> used regulator_set_voltage_triplet() with volatege range, and this is > >> already present in opp/core.c code, so it can be reused. While at this, > >> move setting regulators into opp/core. > >> > >> This patchset was tested on Odroid XU3. > >> > >> The last patch depends on two previous. > > > > So you break the ABI... I assume that patchset maintains > > bisectability. However there is no explanation why ABI break is needed > > so this does not look good... > > Patchset is bisectable, first one is simple and do not depends on others, > second depends on first, last depends on first and second. > > What do you mean by breaking ABI ? I mean, that Linux kernel stops working with existing DTBs... or am I mistaken and there is no problem? Maybe I confused the order... Best regards, Krzysztof