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:

quoted

From: Matthias Kaehlcke <redacted>

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 <redacted>
Signed-off-by: Douglas Anderson <redacted>
---
Changes in v3:
- Took out fixed delay for falling transitions
- Updated description

 .../devicetree/bindings/regulator/pwm-regulator.txt   |  6 ++++++

Acked-by: Rob Herring <redacted>

I take that back. What Mark said...

quoted

 drivers/regulator/pwm-regulator.c                     | 19 +++++++++++++++----
 2 files changed, 21 insertions(+), 4 deletions(-)

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