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[74.125.226.204]) by smtp.gmail.com with ESMTPSA id a1e0cc1a2514c-9861afee4c1sm1772160241.7.2026.09.25.01.36.58 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 25 Sep 2026 01:36:58 -0700 (PDT) Received: by mail-ua2-f12.google.com with SMTP id a1e0cc1a2514c-982db8d3b1eso194450241.1 for ; Fri, 25 Sep 2026 01:36:58 -0700 (PDT) X-Forwarded-Encrypted: i=1; AKwUvByZCqgpYZ+OEaGPnCmUcpGnE3J5jX75GLso64pJbhD8S6YAXNhW3L7S0NEfrI4Zv5osRjBeOmH4iUxhAEM=@vger.kernel.org X-Received: by 2002:a05:6102:3f4e:b0:779:5049:87b2 with SMTP id ada2fe7eead31-7b1b34d3523mr571652137.0.1790325418233; Fri, 25 Sep 2026 01:36:58 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20260904-rzg2-sr-boards-v8-0-94c4674927e8@solid-run.com> <20260904-rzg2-sr-boards-v8-1-94c4674927e8@solid-run.com> <29a64d27-b19e-41e3-8d2f-768cfa8de2e6@solid-run.com> In-Reply-To: <29a64d27-b19e-41e3-8d2f-768cfa8de2e6@solid-run.com> From: Geert Uytterhoeven Date: Fri, 25 Sep 2026 10:36:46 +0200 X-Gmail-Original-Message-ID: X-Gm-Features: AclHuK8NKCeC4Y5XQE8QASTp0kSvhUAEgHHcCqI-Lvtiu6JPf2U_mHtpxgJb_YI Message-ID: Subject: Re: [PATCH v8 01/11] dt-bindings: soc: renesas: Add various SolidRun RZ/G2 based boards To: Josua Mayer Cc: Magnus Damm , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , Benjamin Bara , Linus Walleij , Lad Prabhakar , Jon Nettleton , Mikhail Anikin , Yazan Shhady , "linux-renesas-soc@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-usb@vger.kernel.org" , "linux-gpio@vger.kernel.org" , Conor Dooley Content-Type: text/plain; charset="UTF-8" Hi Josua, On Fri, 25 Sept 2026 at 10:29, Josua Mayer wrote: > On 9/23/2026 3:42 PM, Geert Uytterhoeven wrote: > > On Fri, 4 Sept 2026 at 13:56, Josua Mayer wrote: > >> Add bindings for various SolidRun boards and System on Module built > >> around Renesas RZ/G2 family of SoCs: > >> > >> - RZ/G2L SoM [1] > >> - RZ/V2L SoM [2] > >> (shares PCB with G2L and has very similar programming model) > >> - RZ/G2LC SoM [3] > >> - RZ/G2UL SoM [4] > >> (shares PCB with G2LC but programming model differs largely) > >> - HummingBoard IIoT [5] (RZ/G2L, RZ/V2L, RZ/G2LC) > >> - HummingBoard Pro [6] (RZ/G2L, RZ/V2L) > >> - HummingBoard Base (Ripple) [7] (RZ/G2L, RZ/V2L, RZ/G2LC, RZ/G2UL) > >> > >> [1] https://www.solid-run.com/embedded-industrial-iot/renesas-rz-family/rz-g2l-som/ > >> [2] https://www.solid-run.com/embedded-industrial-iot/renesas-rz-family/rz-v2l-som/ > >> [3] https://www.solid-run.com/embedded-industrial-iot/renesas-rz-family/rz-g2lc-som/ > >> [4] https://www.solid-run.com/embedded-industrial-iot/renesas-rz-family/rz-g2ul-som/ > >> [5] https://www.solid-run.com/embedded-industrial-iot/renesas-rz-family/hummingboard-rz-series-sbcs/hummingboard-rz-g2l-iot-sbc/ > >> [6] https://www.solid-run.com/embedded-industrial-iot/renesas-rz-family/hummingboard-rz-series-sbcs/hummingboard-rz-g2l-sbc/ > >> [7] https://www.solid-run.com/embedded-industrial-iot/renesas-rz-family/hummingboard-rz-series-sbcs/hummingboard-rz-g2lc-base/ > >> > >> Acked-by: Conor Dooley > >> Signed-off-by: Josua Mayer > > Thanks for your patch! > > > >> --- a/Documentation/devicetree/bindings/soc/renesas/renesas.yaml > >> +++ b/Documentation/devicetree/bindings/soc/renesas/renesas.yaml > >> @@ -508,6 +508,14 @@ properties: > >> - renesas,r9a07g043u12 # RZ/G2UL Type-2 > >> - const: renesas,r9a07g043 > >> > >> + - description: SolidRun RZ/G2UL based boards > >> + items: > >> + - enum: > >> + - solidrun,rzg2ul-hummingboard-ripple # SolidRun RZ/G2UL HummingBoard Ripple > > As RZ/G2UL is pin-compatible with RZ/G2LC, > The SoM is, the SoC is more complex. > SolidRun uses the G2L/G2LC package 15x15mm while G2UL is 13x13. IC. > You are correct to expect HB-IIoT, however due to the reduced pin count > and feature set it is not useful and will likely never get supported by SR. OK (same for RZ/Five ;-) > > I guess you could have an > > RZ/G2UL-based HummingBoard IIoT, too? > > > >> + - const: solidrun,rzg2ul-sr-som > > Is there any special meaning of the "sr" in the middle of this and all > > other SoM compatible values? > > If it just means "SolidRun", > > It does. > > > I think it can be dropped. > > The "sr" is merely to avoid name collision with other SoM vendors. OK, for non-DT situations where there is no vendor-prefix. > > However, > > you already have that for various SoMs with non-Renesas SoCs. > > Correct. OK, so keep it for consistency. 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