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Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vaMpk-000000049QS-2yNr; Mon, 29 Dec 2025 23:39:28 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vaMpj-000000049QK-2P7X for linux-arm-kernel@lists.infradead.org; Mon, 29 Dec 2025 23:39:27 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id ACFE56000A; Mon, 29 Dec 2025 23:39:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25287C4CEF7; Mon, 29 Dec 2025 23:39:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767051566; bh=EmSJ5RDGVomtHdjap3p2iZ3idrkRaL1n89LOHs60OJQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=icO1QuhOjcRTRYphaT9ckAEZt0a0F+8OshHNBctrUvrJXtiiy7JaMhapPmNeMdbbH FxF/OsXFQt969xNxNdQtlo2E5D0g43ylTD/qTFQf8pfELCjts7u+xl9lxFMgFc4nwb XH+1qzLXwx6wQKy7+NXrxQpJD0N6Rp+NTLaKPtkzC3tlxnQns8GrJjZ2HWgNdHOrbH nP+wLabskLg8g0/SDbxwZvpG9xIbWVosokA3/pdLKS4HKzoGwB4WAVYe9XXZS+TkdB mrRMRwFEn5eHYbKrCWo402kuwyHMpxP6G8soqrjfkKkummYcTTccAb4cTtNqcbZrSf zdJXogqnZM0gw== Date: Mon, 29 Dec 2025 17:39:25 -0600 From: Rob Herring To: Alain Volmat Cc: Hugues Fruchet , Mauro Carvalho Chehab , Maxime Coquelin , Alexandre Torgue , Krzysztof Kozlowski , Conor Dooley , Sumit Semwal , Christian =?iso-8859-1?Q?K=F6nig?= , linux-media@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org Subject: Re: [PATCH 09/12] dt-bindings: media: st: dcmi: add DMA-MDMA chaining properties Message-ID: <20251229233925.GA2796847-robh@kernel.org> References: <20251218-stm32-dcmi-dma-chaining-v1-0-39948ca6cbf6@foss.st.com> <20251218-stm32-dcmi-dma-chaining-v1-9-39948ca6cbf6@foss.st.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251218-stm32-dcmi-dma-chaining-v1-9-39948ca6cbf6@foss.st.com> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Dec 18, 2025 at 07:44:49PM +0100, Alain Volmat wrote: > Add properties update and new sram property necessary in order > to enable the DMA-MDMA chaining. > > Signed-off-by: Alain Volmat > --- > Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml | 13 ++++++++++++- > 1 file changed, 12 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml b/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml > index 34147127192f..ccaa2d0a2669 100644 > --- a/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml > +++ b/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml > @@ -27,11 +27,14 @@ properties: > - const: mclk > > dmas: > - maxItems: 1 > + minItems: 1 > + maxItems: 2 > > dma-names: > items: > - const: tx > + - const: mdma_tx > + minItems: 1 > > resets: > maxItems: 1 > @@ -40,6 +43,14 @@ properties: > minItems: 1 > maxItems: 2 > > + sram: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + phandles to a reserved SRAM region which is used as temporary phandle to... > + storage memory between DMA and MDMA engines. > + The region should be defined as child nodes of the AHB SRAM node > + as per the generic bindings in Documentation/devicetree/bindings/sram/sram.yaml Drop this sentence. Rob