On Mon, 19 Feb 2018, Heiko Stuebner wrote:

Am Montag, 19. Februar 2018, 10:22:47 CET schrieb Lee Jones:

quoted

On Fri, 16 Feb 2018, Enric Balletbo i Serra wrote:

quoted

Hardware needs a delay between setting an initial (non-zero) PWM and
enabling the backlight using GPIO. The post-pwm-on-delay-ms specifies
this delay in milli seconds. Hardware also needs a delay between disabing
the backlight using GPIO and setting PWM value to 0. The pwm-off-delay-ms
is this delay in milli seconds.

Signed-off-by: Enric Balletbo i Serra <redacted>
Acked-by: Pavel Machek <redacted>
---
Based on the original Huang Lin [off-list ref] work.

Changes since v4:
 - Rebase on top of mainline.
Changes since v3:
 - Replace us for ms.
 - Add Acked-by: Pavel Machek [off-list ref]
Changes since v2:
 - Use separate properties (Rob Herring)
Changes since v1:
 - As suggested by Daniel Thompson
   - Do not assume power-on delay and power-off delay will be the same

 Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt | 6 ++++++
 1 file changed, 6 insertions(+)

Looks like this still needs an Ack.

Also, you didn't supply a 0th (cover-letter) patch, so I have no idea
of patch history or your future intentions.

Are there build-time dependencies between them or can each patch be
merged via their respective trees without the fear of merge/build
failure?

When looking at the patches, there do not seem to be any build-time
dependencies between the patch 1-3 (backlight) and 4+5 devicetree,
so after Rob hopefully has time to look at the binding change, I'd suspect
you take the code changes and I'll take the dts changes.

Works for me.

-- 
Lee Jones
Linaro Services Technical Lead
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