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[74.125.224.171]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-672d9089322sm979724d50.21.2026.09.23.07.45.08 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 23 Sep 2026 07:45:09 -0700 (PDT) Received: by mail-yx2-f43.google.com with SMTP id 00721157ae682-85d43ac608dso12723667b3.3 for ; Wed, 23 Sep 2026 07:45:08 -0700 (PDT) X-Forwarded-Encrypted: i=1; AKwUvBzUWuFZCYLjkN+ufD/zZkbI5wG9y9lJTMIyJivtqzMtg5Ug+7d9gL8D+sTeQPU/1gbY+8vWG5WwKAZgTyY=@vger.kernel.org X-Received: by 2002:a05:6102:2922:b0:7a7:198a:c2bd with SMTP id ada2fe7eead31-7ac1da2015fmr2739749137.37.1790174262272; Wed, 23 Sep 2026 07:37:42 -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-v8-4-94c4674927e8@solid-run.com> In-Reply-To: <20260904-rzg2-sr-boards-v8-4-94c4674927e8@solid-run.com> From: Geert Uytterhoeven Date: Wed, 23 Sep 2026 16:37:31 +0200 X-Gmail-Original-Message-ID: X-Gm-Features: AclHuK-Y4yRPc5ygPTDjA1xgXgYnA6hz3s-S6a8gc_ggzPpYCTe_qr4a-TZ4I5w Message-ID: Subject: Re: [PATCH v8 04/11] arm64: dts: renesas: add support for solidrun rzg2l som and hb-iiot evb 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 Content-Type: text/plain; charset="UTF-8" Hi Josua, On Fri, 4 Sept 2026 at 13:56, Josua Mayer wrote: > Add support for the SolidRun RZ/G2L SoM [1] on HummingBoard IIoT [2]. > > The SoM features: > - 2x 1Gbps Ethernet with PHY > - eMMC > - 1/2GB DDR > - WiFi + Bluetooth > - SDHI Mux switching between eMMC and Carrier Board > > The HummingBoard IIoT features: > - 3x USB-2.0 Type A connector > - 2x 1Gbps RJ45 Ethernet > - USB Type-C Console Port > - microSD connector > - RTC with backup battery > - RGB Status LED > - 1x M.2 B-Key connector with USB-2.0 + SIM card holder > - 1x DSI Display Connector > - GPIO header > - 2x RS232/RS485 ports (configurable) > - 2x CAN > > Descriptions for eMMC, microSD and RS485 are provided as overlays due to > their dependency on configurable mux states. > > [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/hummingboard-rz-series-sbcs/hummingboard-rz-g2l-iot-sbc/ > > Signed-off-by: Josua Mayer Thanks for your patch! > --- /dev/null > +++ b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-common.dtsi > + aliases { > + gpio1 = &tca6408_u48; > + gpio2 = &tca6408_u37; > + gpio3 = &tca6416_u20; > + gpio4 = &tca6416_u21; The TCA64xx driver does not seem to support gpio aliases, so please drop these. > + i2c3 = &i2c_exp; > + i2c4 = &i2c_csi; > + i2c5 = &i2c_dsi; > + i2c6 = &i2c_lvds; > + rtc0 = &carrier_rtc; > + rtc1 = &pmic; > + serial3 = &scif3; > + }; > + v_1_2: regulator-1-2 { Preferred node name is "regulator-1v2"... > + compatible = "regulator-fixed"; > + regulator-name = "1v2"; > + regulator-max-microvolt = <1200000>; > + regulator-min-microvolt = <1200000>; > + }; > + > + v_3_3: regulator-3-3 { ... "regulator-3v3". > + compatible = "regulator-fixed"; > + regulator-name = "3v3"; > + regulator-max-microvolt = <3300000>; > + regulator-min-microvolt = <3300000>; > + }; > +&i2c0 { > + /* highest i2c clock supported by all peripherals is 400kHz */ We have a DT propery for that ;-) clock-frequency = <400000>; Same for i2c1. > --- /dev/null > +++ b/arch/arm64/boot/dts/renesas/rzg2l-sr-som.dtsi > @@ -0,0 +1,480 @@ > +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +/* > + * Device Tree Source for the RZ/G2L Solidrun SoM > + * > + * Copyright 2023 SolidRun Ltd. > + * Copyright 2025 Josua Mayer > + */ > + > +#include > +#include > + > +/ { > + aliases { > + ethernet0 = ð0; > + ethernet1 = ð1; > + gpio0 = &pinctrl; The pin control driver does not support gpio aliases, so please drop this. > + i2c0 = &i2c0; > + i2c1 = &i2c1; > + i2c2 = &i2c3; > + mmc0 = &sdhi0; > + mmc1 = &sdhi1; > + rtc0 = &pmic; > + serial0 = &scif0; > + serial1 = &scif1; > + serial2 = &scif2; > + }; I didn't compare with the board schematics, but the rest LGTM. 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