From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EEDA339D3C0; Thu, 21 May 2026 20:59:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779397151; cv=none; b=Gxns3KBqTj00HzIrGZGTIfcSLYjQN6OwKQwcVUg7oo2klggX18o8RUY5qApdq7pjLAciXjlO6e899WeCU3Kcid3Mrn2jRWrHhx1bQbNAl16g715ukZeDGF0nQLUbqK4nLmPB0j0Lomk44b4IBp3BCuGoZLTwAzk/274gTlLHWG0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779397151; c=relaxed/simple; bh=v1op30OCEgguz2KY20WKLNpjLAeywiEW/y+usZF3EPw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=QktwLQLpeBBdkys2ZPJaf0da2V+d6KFNqiXYSulFvOVi4g40ydZy4t1mWGkqTJvjpcEKMXuykXslF3VfyffLCv0WRzN97eLjWNC2jWMRFBcXVRJYfIn/QDljlMwlDJl48CwdMJpwWpbVQCCh2orzPONkm4ZWH5ADUq4Q8EYvBWI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fKYkeQtY; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fKYkeQtY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 039571F000E9; Thu, 21 May 2026 20:59:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779397149; bh=JRXpWEig6IbgIhldDiRCEMAQ6F9oQTz24NXw/74K8mc=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=fKYkeQtYytPYNhIhPJP87Uka/tb1YeGnCuv29j0jDp4xI31q0dS3IqvkmK1yUO7BG 5oEK0wZEzLMlD0/wZHooDxLbi/zvfcc+H5y/YK2yWmlG1b5tHRK4c1BdK5L+WlPZ1i AYImOHBhtgNAy+Xj1zazjLBG1TPTnmgXcSoYLtpq2SI//HP4gGedoqzdu10invJp6s kZvirlkT3Q5mBRTD3e21hiTzUf+sT6vwcgp3+zG6JBF02wrdIOvQoUMFtitZXqLWhT I2llN08cx0GKsP2VshhxQi/qOMxPcLDIKbImF9mN37t/dg0zNyN30kQOXBSG4iryaz 6/JAsI3Wx8pwQ== Message-ID: <1a4a54bc-1013-4ab0-85e9-7ad5cf7146cd@kernel.org> Date: Thu, 21 May 2026 22:59:04 +0200 Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 7/9] riscv: dts: ultrarisc: add Rongda M0 board device tree To: wangjia@ultrarisc.com, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Linus Walleij , Bartosz Golaszewski , Samuel Holland Cc: Paul Walmsley , Palmer Dabbelt , Conor Dooley , devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org References: <20260515-ultrarisc-pinctrl-v1-0-bf559589ea8a@ultrarisc.com> <20260515-ultrarisc-pinctrl-v1-7-bf559589ea8a@ultrarisc.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 15/05/2026 03:18, Jia Wang via B4 Relay wrote: > From: Jia Wang > > Rongda M0 is an mATX motherboard based on the UltraRISC DP1000 SoC. > > Signed-off-by: Jia Wang > --- > arch/riscv/boot/dts/Makefile | 1 + > arch/riscv/boot/dts/ultrarisc/Makefile | 2 + > .../dts/ultrarisc/dp1000-rongda-m0-pinctrl.dtsi | 85 ++++++++++++++++ > arch/riscv/boot/dts/ultrarisc/dp1000-rongda-m0.dts | 111 +++++++++++++++++++++ > 4 files changed, 199 insertions(+) > > diff --git a/arch/riscv/boot/dts/Makefile b/arch/riscv/boot/dts/Makefile > index 69d8751fb17c..702882974251 100644 > --- a/arch/riscv/boot/dts/Makefile > +++ b/arch/riscv/boot/dts/Makefile > @@ -12,3 +12,4 @@ subdir-y += spacemit > subdir-y += starfive > subdir-y += tenstorrent > subdir-y += thead > +subdir-y += ultrarisc > diff --git a/arch/riscv/boot/dts/ultrarisc/Makefile b/arch/riscv/boot/dts/ultrarisc/Makefile > new file mode 100644 > index 000000000000..d01a770d3cba > --- /dev/null > +++ b/arch/riscv/boot/dts/ultrarisc/Makefile > @@ -0,0 +1,2 @@ > +# SPDX-License-Identifier: GPL-2.0 > +dtb-$(CONFIG_ARCH_ULTRARISC) += dp1000-rongda-m0.dtb > diff --git a/arch/riscv/boot/dts/ultrarisc/dp1000-rongda-m0-pinctrl.dtsi b/arch/riscv/boot/dts/ultrarisc/dp1000-rongda-m0-pinctrl.dtsi > new file mode 100644 > index 000000000000..101b416b1079 > --- /dev/null > +++ b/arch/riscv/boot/dts/ultrarisc/dp1000-rongda-m0-pinctrl.dtsi > @@ -0,0 +1,85 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright(C) 2026 UltraRISC Technology (Shanghai) Co., Ltd. > + */ > + > +#include "dp1000.dtsi" > + > +&pmx0 { > + i2c0_pins: i2c0-pins { > + pins = "PA12", "PA13"; > + function = "func0"; > + bias-pull-up; > + drive-strength = <33>; > + }; > + > + i2c1_pins: i2c1-pins { > + pins = "PB6", "PB7"; > + function = "func0"; > + bias-pull-up; > + drive-strength = <33>; > + }; > + > + i2c2_pins: i2c2-pins { > + pins = "PC0", "PC1"; > + function = "func0"; > + bias-pull-up; > + drive-strength = <33>; > + }; > + > + i2c3_pins: i2c3-pins { > + pins = "PC2", "PC3"; > + function = "func0"; > + bias-pull-up; > + drive-strength = <33>; > + }; > + > + pciex4a_link_pins: pciex4a-link-pins { > + pins = "PC0"; > + function = "func1"; > + bias-pull-down; > + drive-strength = <33>; > + }; > + > + pciex4b_link_pins: pciex4b-link-pins { > + pins = "PC1"; > + function = "func1"; > + bias-pull-down; > + drive-strength = <33>; > + }; > + > + spi0_pins: spi0-pins { > + pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7"; > + function = "func1"; > + bias-pull-up; > + drive-strength = <33>; > + }; > + > + spi1_pins: spi1-pins { > + pins = "PA0", "PA1", "PA2", "PA3"; > + function = "func0"; > + bias-pull-up; > + drive-strength = <33>; > + }; > + > + uart0_pins: uart0-pins { > + pins = "PA8", "PA9"; > + function = "func1"; > + bias-pull-up; > + drive-strength = <33>; > + }; > + > + uart1_pins: uart1-pins { > + pins = "PB4", "PB5"; > + function = "func0"; > + bias-pull-up; > + drive-strength = <33>; > + }; > + > + uart2_pins: uart2-pins { > + pins = "PC4", "PC5"; > + function = "func0"; > + bias-pull-up; > + drive-strength = <33>; > + }; > +}; > diff --git a/arch/riscv/boot/dts/ultrarisc/dp1000-rongda-m0.dts b/arch/riscv/boot/dts/ultrarisc/dp1000-rongda-m0.dts > new file mode 100644 > index 000000000000..6f72d60ad55e > --- /dev/null > +++ b/arch/riscv/boot/dts/ultrarisc/dp1000-rongda-m0.dts > @@ -0,0 +1,111 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright(C) 2026 UltraRISC Technology (Shanghai) Co., Ltd. > + */ > + > +#include "dp1000-rongda-m0-pinctrl.dtsi" > +#include > + > +/ { > + model = "Rongda M0 Board"; > + compatible = "rongda,m0", "ultrarisc,dp1000"; > + > + aliases { > + serial0 = &uart0; > + serial1 = &uart1; > + serial2 = &uart2; > + serial3 = &uart3; > + }; > + > + chosen { > + stdout-path = "serial0:115200n8"; > + }; > + > + gpio-poweroff { > + compatible = "gpio-poweroff"; > + gpios = <&gpio_b 0 GPIO_ACTIVE_HIGH>; > + active-delay-ms = <100>; > + > + status = "disabled"; Why is this disabled? You just added final board, so it cannot have any nodes disabled. Disabled at this point means you add dead code without explanation. Best regards, Krzysztof