On Fri, Sep 02, 2016 at 10:11:51AM -0500, Rob Herring wrote: > On Tue, Aug 30, 2016 at 09:21:15PM -0700, Douglas Anderson wrote: > > From: Matthias Kaehlcke <mka at chromium.org> > > > > A change of the duty cycle doesn't necessarily cause an immediate switch > > to the target voltage. On many PWM regulators there is a fixed "settle > > time" (irrespective of the jump size) that we need to wait after an > > upward jump. This change introduces the device tree property > > "settle-time-up-us" which allows us to specify a fixed delay after a > > voltage increase. > > > > We don't add an option of a fixed delay on the way down for now because > > the way down is probably modelled best with a ramp rate, not a fixed > > delay. > > > > Signed-off-by: Matthias Kaehlcke <mka at chromium.org> > > Signed-off-by: Douglas Anderson <dianders at chromium.org> > > --- > > Changes in v3: > > - Took out fixed delay for falling transitions > > - Updated description > > > > .../devicetree/bindings/regulator/pwm-regulator.txt | 6 ++++++ > > Acked-by: Rob Herring <robh at kernel.org> I take that back. What Mark said... > > > drivers/regulator/pwm-regulator.c | 19 +++++++++++++++---- > > 2 files changed, 21 insertions(+), 4 deletions(-)
