Thread (54 messages) 54 messages, 4 authors, 2021-05-28

Re: [PATCH 01/16] dt-bindings: arm: renesas: Document Renesas RZ/G2UL SoC

From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: 2021-05-27 11:30:04
Also in: linux-arm-kernel, linux-clk, linux-renesas-soc, linux-serial, lkml

Hi Prabhakar,

On Fri, May 21, 2021 at 6:54 PM Lad, Prabhakar
[off-list ref] wrote:
On Fri, May 21, 2021 at 2:23 PM Geert Uytterhoeven [off-list ref] wrote:
quoted
On Fri, May 14, 2021 at 9:23 PM Lad Prabhakar
[off-list ref] wrote:
quoted
Add device tree bindings documentation for Renesas RZ/G2UL SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Chris Paterson <redacted>
Thanks for your patch!
quoted
--- a/Documentation/devicetree/bindings/arm/renesas.yaml
+++ b/Documentation/devicetree/bindings/arm/renesas.yaml
@@ -302,6 +302,12 @@ properties:
               - renesas,rzn1d400-db # RZN1D-DB (RZ/N1D Demo Board for the RZ/N1D 400 pins package)
           - const: renesas,r9a06g032

+      - description: RZ/G2UL (R9A07G043)
+        items:
+          - enum:
+              - renesas,r9a07g043u11 # Single Cortex-A55 RZ/G2UL
Is there any specific reason you're including the final "1", unlike the
RZ/G2{L,LC} binding?
To be consistent with the RZ/G2L family of SoC's "1" is appended to
the compatible string.
No, for RZ/G2L you have:

    renesas,r9a07g044c1 for r9a07g044c12
    renesas,r9a07g044c2 for r9a07g044c22
    renesas,r9a07g044l1 for r9a07g044l13 and r9a07g044l14
    renesas,r9a07g044l2 for r9a07g044l23 and r9a07g044l24

i.e. the compatible value lacks the final digit.

For RZ/G2UL, I do not know if we have to distinguish between
r9a07g043u11 and r9a07g043u12.
quoted
As RZ/G2UL is always single-core, perhaps this compatible value can be
dropped?
Do agree with you.
In light of the continued discussion for [PATCH 02/16], perhaps it's
good to keep it anyway?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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