Thread (1 message) 1 message, 1 author, 2018-06-12

Re: [PATCH v8 2/4] dt-bindings: drm/bridge: Document sn65dsi86 bridge bindings

From: Stephen Boyd <hidden>
Date: 2018-06-12 08:31:30
Also in: dri-devel, linux-arm-msm

Quoting spanda@codeaurora.org (2018-06-05 21:50:16)
On 2018-06-05 20:50, Rob Herring wrote:
quoted
On Tue, Jun 05, 2018 at 11:10:16AM +0530, Sandeep Panda wrote:
quoted
Document the bindings used for the sn65dsi86 DSI to eDP bridge.
[...]
quoted
quoted
and
+                   the second cell is used to specify flags.
+                   See ../../gpio/gpio.txt for more information.
+- #pwm-cells : Should be one. See ../../pwm/pwm.txt for description 
of
+               the cell formats.
+
+- clock-names: should be "refclk"
+- clocks: Specification for input reference clock. The reference
+      clock rate must be 12 MHz, 19.2 MHz, 26 MHz, 27 MHz or 38.4 MHz.
+
+- lane-mapping: Specification to describe the logical to physical 
lane
As I mentioned in v7, we already have a property for this. It's called
'data-lanes' and defined in media/video-interfaces.txt. Use that. If 
you
need polarity too, then add a property for that. And add it to
video-interfaces.txt.
The data-lanes property mentioned in media/video-interfaces.txt is 
referring
to DSI/CSI lanes where assumption is clock lane is fixed at index 0. But 
here
the we want to mention about eDP lanes which do not have dedicated clock 
lane.
So can we still use the existing data-lanes property here?
Why is that a problem? It's just a property name.

There are data-lanes and clock-lanes properties in the
video-interfaces.txt file by the way. It would be nice if that document
could be updated for displayport and DSI (e.g.  clock-noncontinuous or
link-frequencies) or even just mention in there that these can apply to
DSI and displayport too.

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