Hi Geert,
On 14/02/2020 08:26, Geert Uytterhoeven wrote:
Document the optional properties for describing module resets, to support resetting display channels on R-Car Gen2 and Gen3.
Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Acked-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Acked-by: Rob Herring robh@kernel.org
Reviewed-by: Kieran Bingham kieran.bingham+renesas@ideasonboard.com
Who's taking this kind of patches? V1 was submmitted in March 2017.
Hrm ... presumably through the DRM subsystem trees?
Or just for Laurent to pick up ... -- KB
v5:
- Rebase on top of renesas,cmms and renesas,vsps patches,
v4:
- Use "All but R8A7779" instead of "R8A779[0123456]", to reduce future churn,
v3:
- Add Acked-by,
- Drop LVDS resets, as LVDS is now covered by a separate binding,
- Update the example.
v2:
- s/phandles/phandle/.
.../devicetree/bindings/display/renesas,du.txt | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/renesas,du.txt b/Documentation/devicetree/bindings/display/renesas,du.txt index eb4ae41fe41f83c7..51cd4d1627703a15 100644 --- a/Documentation/devicetree/bindings/display/renesas,du.txt +++ b/Documentation/devicetree/bindings/display/renesas,du.txt @@ -50,6 +50,14 @@ Required Properties: VSP instance that serves the DU channel, and the channel index identifies the LIF instance in that VSP.
+Optional properties:
- resets: A list of phandle + reset-specifier pairs, one for each entry in
- the reset-names property.
- reset-names: Names of the resets. This property is model-dependent.
- All but R8A7779 use one reset for a group of one or more successive
channels. The resets must be named "du.x" with "x" being the numericalindex of the lowest channel in the group.Required nodes:
The connections to the DU output video ports are modeled using the OF graph @@ -96,6 +104,8 @@ Example: R8A7795 (R-Car H3) ES2.0 DU <&cpg CPG_MOD 722>, <&cpg CPG_MOD 721>; clock-names = "du.0", "du.1", "du.2", "du.3";
resets = <&cpg 724>, <&cpg 722>;reset-names = "du.0", "du.2";