From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 4DAF784A2B; Tue, 21 Jan 2025 10:11:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737454290; cv=none; b=ILQrF9uZ/I+i2km+F7aRywWF/e5xHZ0Pj0xrnrwU1k8mHHFq+t+MykPYQUk5l2OAu74D/P82MFdByaD/gOUVn5amkzKvI45IJrsZXGxBoEaFdLwcrN6Msdx9gZfaiz90w8CBrAiZMwLLaap2cpnBxUSXFUg4DBkSvyJaf34JLTw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737454290; c=relaxed/simple; bh=nYA/Il3Q3+Rs2oc9UDAvzzbRS3MucwqejkJ4R7lBUeg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=oBHLCefTlL01B8fdRM84Mu+8P+NL1wZkIHOx0T+ZIkkuDf+OvhNi9J/MW/wiArPoLyTM3bnDTd0i/H8jtFxVplXEt/01sWAsuiTE57N8PmcrfIVTPbHfRoJYKoFmhbrEaYv92iDldVsJ7WNX6W1GmC2l1v83zdusI/V/FMyweo0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=pgDlHpBA; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="pgDlHpBA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CC518C4CEDF; Tue, 21 Jan 2025 10:11:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737454289; bh=nYA/Il3Q3+Rs2oc9UDAvzzbRS3MucwqejkJ4R7lBUeg=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=pgDlHpBA4lhqkLuMu1HkydS3ti5ct0KyB/yzyLhnfJLcHzFeawG4ZZqkj6GZz+Anl JySfUgwy282OFIe5eB+0LzpWXSHMKd2Gm0iM9Kvq362umdu/49xRmxJQf0+3+55IS8 U6IsgOVPc3he85WofZXbwVP8XtTdK2RCyqZy0DNB2H1pB8N8vQ+IVbXWLsFNB78usA REXEzXYfuKu0XMEk2IpRvvLZm1ocNemHkvVmJxCdUBTPOeb2ZA4pW5UNck12PKUBLp v5uvBsYF3y23AGneOls9+Yqcc7QQWUOzzd0+Qsv9R/ScP+Wxrnt7EAJEDKFjl4v1re gCW+cO7RcIwWQ== Message-ID: <9dee2610-019b-4b8c-af8f-0a401e46a307@kernel.org> Date: Tue, 21 Jan 2025 11:11:21 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC v3 16/18] riscv: dts: thead: Introduce power domain nodes with aon firmware To: Michal Wilczynski , mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, drew@pdp7.com, guoren@kernel.org, wefu@redhat.com, jassisinghbrar@gmail.com, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, frank.binns@imgtec.com, matt.coster@imgtec.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, ulf.hansson@linaro.org, jszhang@kernel.org, p.zabel@pengutronix.de, m.szyprowski@samsung.com Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-pm@vger.kernel.org References: <20250120172111.3492708-1-m.wilczynski@samsung.com> <20250120172111.3492708-17-m.wilczynski@samsung.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 20/01/2025 18:21, Michal Wilczynski wrote: > The DRM Imagination GPU requires a power-domain driver. In the T-HEAD > TH1520 SoC implements power management capabilities through the E902 > core, which can be communicated with through the mailbox, using firmware > protocol. > > Add AON node, which servers as a power-domain controller. > > Signed-off-by: Michal Wilczynski > --- > arch/riscv/boot/dts/thead/th1520.dtsi | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi > index d4cba0713cab..d6af27cbb786 100644 > --- a/arch/riscv/boot/dts/thead/th1520.dtsi > +++ b/arch/riscv/boot/dts/thead/th1520.dtsi > @@ -6,6 +6,7 @@ > > #include > #include > +#include What do you need this header for? > > / { > compatible = "thead,th1520"; > @@ -229,6 +230,13 @@ stmmac_axi_config: stmmac-axi-config { > snps,blen = <0 0 64 32 0 0 0>; > }; > > + aon: aon { > + compatible = "thead,th1520-aon"; > + mboxes = <&mbox_910t 1>; If it is not used at all? Best regards, Krzysztof