From: Rob Herring <robh@kernel.org>
To: Alain Volmat <alain.volmat@foss.st.com>
Cc: "Hugues Fruchet" <hugues.fruchet@foss.st.com>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
"Maxime Coquelin" <mcoquelin.stm32@gmail.com>,
"Alexandre Torgue" <alexandre.torgue@foss.st.com>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
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
Date: Mon, 29 Dec 2025 17:39:25 -0600 [thread overview]
Message-ID: <20251229233925.GA2796847-robh@kernel.org> (raw)
In-Reply-To: <20251218-stm32-dcmi-dma-chaining-v1-9-39948ca6cbf6@foss.st.com>
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 <alain.volmat@foss.st.com>
> ---
> 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
next prev parent reply other threads:[~2025-12-29 23:39 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-18 18:44 [PATCH 00/12] media: stm32: dcmi: stability & performance enhancements Alain Volmat
2025-12-18 18:44 ` [PATCH 01/12] media: stm32: dcmi: Switch from __maybe_unused to pm_sleep_ptr() Alain Volmat
2025-12-20 17:15 ` kernel test robot
2025-12-18 18:44 ` [PATCH 02/12] media: stm32: dcmi: perform dmaengine_slave_config at probe Alain Volmat
2025-12-18 18:44 ` [PATCH 03/12] media: stm32: dcmi: only create dma descriptor once at buf_prepare Alain Volmat
2025-12-18 18:44 ` [PATCH 04/12] media: stm32: dcmi: stop the dma transfer on overrun Alain Volmat
2025-12-18 18:44 ` [PATCH 05/12] media: stm32: dcmi: rework spin_lock calls Alain Volmat
2025-12-18 18:44 ` [PATCH 06/12] media: stm32: dcmi: perform all dma handling within irq_thread Alain Volmat
2025-12-18 18:44 ` [PATCH 07/12] media: stm32: dcmi: use dmaengine_terminate_async in irq context Alain Volmat
2025-12-18 18:44 ` [PATCH 08/12] media: stm32: dcmi: continuous mode capture in JPEG Alain Volmat
2025-12-18 18:44 ` [PATCH 09/12] dt-bindings: media: st: dcmi: add DMA-MDMA chaining properties Alain Volmat
2025-12-29 23:39 ` Rob Herring [this message]
2025-12-18 18:44 ` [PATCH 10/12] media: stm32: dcmi: addition of DMA-MDMA chaining support Alain Volmat
2025-12-18 18:44 ` [PATCH 11/12] ARM: dts: stm32: add sram node within stm32mp151.dtsi Alain Volmat
2025-12-18 18:44 ` [PATCH 12/12] ARM: dts: stm32: enable DCMI DMA-MDMA chaining on stm32mp157c-ev1.dts Alain Volmat
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