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From: Ferass El Hafidi To: linux-amlogic@lists.infradead.org, Zhentao Guo , Christian Hewitt Cc: Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org Subject: Re: [PATCH 0/3] Add Amlogic stateless H.264 video decoder for S4 References: <20251027-b4-s4-vdec-upstream-v1-0-620401813b5d@amlogic.com> <9a8e0391-c73f-4913-88e1-0a278d99f90d@amlogic.com> In-Reply-To: <9a8e0391-c73f-4913-88e1-0a278d99f90d@amlogic.com> Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=utf-8; format=flowed X-Migadu-Flow: FLOW_OUT On Tue, 28 Oct 2025 11:08, Zhentao Guo wrote: > >在 2025/10/27 20:57, Christian Hewitt 写道: >> [christianshewitt@gmail.com appears similar to someone who previously sent you email, but may not be that person. Learn why this could be a risk at https://aka.ms/LearnAboutSenderIdentification ] >> >> [ EXTERNAL EMAIL ] >> >>> On 27 Oct 2025, at 9:42 am, Zhentao Guo via B4 Relay wrote: >>> >>> Introduce initial driver support for Amlogic's new video acceleration >>> hardware architecture, designed for video stream decoding. >>> >>> Compared to the current Amlogic video decoder hardware architecture, >>> this new implementation eliminates the Esparser hardware component, >>> enabling direct vb2 buffer input. The driver is designed to support >>> the V4L2 M2M stateless decoder API. The initial phase includes support >>> for H.264 decoding on Amlogic S805X2 platform. >> It would be nice if you can outline the additional hardware the driver >> plans to support so reviewers have perspective on where we are now, and >> what more be coming? - the community would also like to understand if >> this driver will supersede the stalled driver attempt in staging. >Yes, we will follow Amlogic's overall upstream progress to support more >hardware >platforms in the future. The next step will be adding support for >A311D2(T7) platform. >We also plan to replace the stalled driver with the new stateless >decoder driver. >The new stateless driver is fully compatible with the old G12/SM1 >platforms, making >this transition feasible. That's awesome news! But how about the older platforms such as GXBB (S905), GXL (S905X) and AXG (A113D)? Will support for them also be added or not? I and probably many other people still have interest on these older SoCs.. they otherwise run Mainline linux mostly fine, so if a working vdec driver comes along for these, that would be great! Best regards, Ferass