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 9EC7312B93; Sat, 23 Aug 2025 15:32:29 +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=1755963149; cv=none; b=IV6cuCyXWskzWKo7Em4G7PuLpAWgmGIDH+uz0dMZ8fec6rHpSsoQRVX+1M/6/0ANG1Q8P2H6mUcfJySPCaCwEhOdkkfzxvQn6kQdqpVMyNPywA5ec4kYkTDbMC8zSDmM6ydHFxAma6x+P7m4R2YEZZsLas/WNkjIqXI1n8y8Brk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755963149; c=relaxed/simple; bh=fklM1B52+EL3U69Opm6aUy+Ykrx4p13iOy/zFuHSE+o=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=s5f9ADICIFO9lTb+GiHd6RE7nDlvcNqUKrikVMgAmMsseI+m1jKzxmrJ410Vr6no0hvHX0D29Ar6ZPPR1Gh3C/5w2dXoY2ecwPMumJGrAZdMWzN8qqHU013NlyX/rvKQf8zrOSjDARJYdrWtkr7EGYfC4czXJYewmo17oy8gASc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Hl2VjHYu; 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="Hl2VjHYu" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 261A2C4CEE7; Sat, 23 Aug 2025 15:32:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755963149; bh=fklM1B52+EL3U69Opm6aUy+Ykrx4p13iOy/zFuHSE+o=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Hl2VjHYuK4GYAKM8hy3aYRVZf+r1ekikZyatc8ECBfUaEKIvh7xpYE4vMDIN3n0c6 yeYS4fiC0TR/HRP5IIartE377pbkhNIpl0HpEmrP171FT2cnBkMf54imm2fqceowB/ HlGyy25y6OW4NajBJuXmHw9NFmY2T6fIlJzIpjsH493cIsAzRznEjRcr8zjFoYASVW U6oCzKFWatpLJXJzbn9m2hV9nv6TRm1neY8OAXLBCsLeDoI16cO8kNW2oyeD2G2UrT 7aGNNMUp2bsH1DPVtlaWgI8BGWbknQ/RYIW7VajnRfvaH4xOmNKfReLJ8oebpEjC++ ONgZo+fJmTS1g== Message-ID: <2eaa1303-79e6-431e-9902-356862357c9f@kernel.org> Date: Sat, 23 Aug 2025 17:32:21 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 10/12] dt-bindings: media: fsd: Document CSIS DMA controller To: Inbaraj E , mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, s.nawrocki@samsung.com, s.hauer@pengutronix.de, shawnguo@kernel.org, cw00.choi@samsung.com, rmfrfs@gmail.com, laurent.pinchart@ideasonboard.com, martink@posteo.de, mchehab@kernel.org, linux-fsd@tesla.com, will@kernel.org, catalin.marinas@arm.com, pankaj.dubey@samsung.com, shradha.t@samsung.com, ravi.patel@samsung.com Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, alim.akhtar@samsung.com, linux-samsung-soc@vger.kernel.org, kernel@puri.sm, kernel@pengutronix.de, festevam@gmail.com, linux-media@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org References: <20250814140943.22531-1-inbaraj.e@samsung.com> <20250814140943.22531-11-inbaraj.e@samsung.com> <00e201dc13d7$17d2a750$4777f5f0$@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 23/08/2025 04:39, Inbaraj E wrote: > Hi Krzysztof, > > Thanks for the review. > >> On 14/08/2025 16:09, Inbaraj E wrote: >>> + >>> +required: >>> + - compatible >>> + - reg >>> + - interrupts >>> + - clocks >>> + - clock-names >>> + - iommus >>> + - port >> >> Also, you miss here supplies (as required). > > According to the HW design of FSD SoC, the control to manage CSIS power is given to > a separate CPU where custom firmware runs. Therefore. The Linux side does not control > the CSIS power supplies directly and are hence not included in the device tree. Usually this still means you vote for enabling these resources, at least for other vendors it is like that. Unless you want to say these are essentially always on and CANNOT be disabled ever. Best regards, Krzysztof