| Message ID | 2da75fd2e971dfab8dd05a2a28bb1d6d9cbe5adb.1619700420.git.geert+renesas@glider.be (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | dt-bindings: display: renesas, du: Make resets optional on R-Car H1 | expand |
Hi Geert, Thank you for the patch. On Thu, Apr 29, 2021 at 02:47:31PM +0200, Geert Uytterhoeven wrote: > The "resets" property is not present on R-Car Gen1 SoCs. > Supporting it would require migrating from renesas,cpg-clocks to > renesas,cpg-mssr. > > Reflect this in the DT bindings by removing the global "required: > resets". All SoCs that do have "resets" properties already have > SoC-specific rules making it required. Should we drop the resets: maxItems: 1 from renesas,du-r8a7779 then ? And maybe the resets: true in the general case ? > Fixes: 99d66127fad25ebb ("dt-bindings: display: renesas,du: Convert binding to YAML") > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> > --- > Documentation/devicetree/bindings/display/renesas,du.yaml | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/display/renesas,du.yaml b/Documentation/devicetree/bindings/display/renesas,du.yaml > index 552a99ce4f1280d7..e955034da53b86e2 100644 > --- a/Documentation/devicetree/bindings/display/renesas,du.yaml > +++ b/Documentation/devicetree/bindings/display/renesas,du.yaml > @@ -89,7 +89,6 @@ required: > - reg > - clocks > - interrupts > - - resets > - ports > > allOf:
Hi Geert, On Thu, Apr 29, 2021 at 06:47:06PM +0300, Laurent Pinchart wrote: > On Thu, Apr 29, 2021 at 02:47:31PM +0200, Geert Uytterhoeven wrote: > > The "resets" property is not present on R-Car Gen1 SoCs. > > Supporting it would require migrating from renesas,cpg-clocks to > > renesas,cpg-mssr. > > > > Reflect this in the DT bindings by removing the global "required: > > resets". All SoCs that do have "resets" properties already have > > SoC-specific rules making it required. > > Should we drop the > > resets: > maxItems: 1 > > from renesas,du-r8a7779 then ? And maybe the > > resets: true > > in the general case ? Any opinion on this ? > > Fixes: 99d66127fad25ebb ("dt-bindings: display: renesas,du: Convert binding to YAML") > > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> > > --- > > Documentation/devicetree/bindings/display/renesas,du.yaml | 1 - > > 1 file changed, 1 deletion(-) > > > > diff --git a/Documentation/devicetree/bindings/display/renesas,du.yaml b/Documentation/devicetree/bindings/display/renesas,du.yaml > > index 552a99ce4f1280d7..e955034da53b86e2 100644 > > --- a/Documentation/devicetree/bindings/display/renesas,du.yaml > > +++ b/Documentation/devicetree/bindings/display/renesas,du.yaml > > @@ -89,7 +89,6 @@ required: > > - reg > > - clocks > > - interrupts > > - - resets > > - ports > > > > allOf:
Hi Laurent, On Thu, Jun 17, 2021 at 3:57 AM Laurent Pinchart <laurent.pinchart@ideasonboard.com> wrote: > On Thu, Apr 29, 2021 at 06:47:06PM +0300, Laurent Pinchart wrote: > > On Thu, Apr 29, 2021 at 02:47:31PM +0200, Geert Uytterhoeven wrote: > > > The "resets" property is not present on R-Car Gen1 SoCs. > > > Supporting it would require migrating from renesas,cpg-clocks to > > > renesas,cpg-mssr. > > > > > > Reflect this in the DT bindings by removing the global "required: > > > resets". All SoCs that do have "resets" properties already have > > > SoC-specific rules making it required. > > > > Should we drop the > > > > resets: > > maxItems: 1 > > > > from renesas,du-r8a7779 then ? And maybe the > > > > resets: true > > > > in the general case ? > > Any opinion on this ? Oops, I did reply to this on April 29, but accidentally dropped all CCs, which made it disappear from your radar, too? | R-Car H1 does have a reset controller, we just don't have support for | it in the DT bindings and Linux driver yet. So from that point of view | it makes sense to keep it. | | Of course we can remove it, and re-add it later if we ever add support, | as at that time we probably will want to change the bindings anyway | to make it required again. And you replied on April 30, also in private: |> R-Car H1 does have a reset controller, we just don't have support for | > it in the DT bindings and Linux driver yet. So from that point of view | > it makes sense to keep it. | | Not sure what we would "keep", given that there's no reset controller | available :-) | | > Of course we can remove it, and re-add it later if we ever add support, | > as at that time we probably will want to change the bindings anyway | > to make it required again. | | Let's not bother. I doubt H1 will get support for a reset controller as | that's an old platform, and the DT bindings thus don't matter too much. | I'll take this patch as-is. | | Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > > > Fixes: 99d66127fad25ebb ("dt-bindings: display: renesas,du: Convert binding to YAML") > > > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> > > > --- > > > Documentation/devicetree/bindings/display/renesas,du.yaml | 1 - > > > 1 file changed, 1 deletion(-) > > > > > > diff --git a/Documentation/devicetree/bindings/display/renesas,du.yaml b/Documentation/devicetree/bindings/display/renesas,du.yaml > > > index 552a99ce4f1280d7..e955034da53b86e2 100644 > > > --- a/Documentation/devicetree/bindings/display/renesas,du.yaml > > > +++ b/Documentation/devicetree/bindings/display/renesas,du.yaml > > > @@ -89,7 +89,6 @@ required: > > > - reg > > > - clocks > > > - interrupts > > > - - resets > > > - ports > > > > > > allOf: Gr{oetje,eeting}s, Geert
diff --git a/Documentation/devicetree/bindings/display/renesas,du.yaml b/Documentation/devicetree/bindings/display/renesas,du.yaml index 552a99ce4f1280d7..e955034da53b86e2 100644 --- a/Documentation/devicetree/bindings/display/renesas,du.yaml +++ b/Documentation/devicetree/bindings/display/renesas,du.yaml @@ -89,7 +89,6 @@ required: - reg - clocks - interrupts - - resets - ports allOf:
The "resets" property is not present on R-Car Gen1 SoCs. Supporting it would require migrating from renesas,cpg-clocks to renesas,cpg-mssr. Reflect this in the DT bindings by removing the global "required: resets". All SoCs that do have "resets" properties already have SoC-specific rules making it required. Fixes: 99d66127fad25ebb ("dt-bindings: display: renesas,du: Convert binding to YAML") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- Documentation/devicetree/bindings/display/renesas,du.yaml | 1 - 1 file changed, 1 deletion(-)