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Message-ID: <vkwdmy4xabipnmetypzuem4xr2fijxb763hu5liohumtkfit7u@drhlzuo57y2w>
Date: Mon, 17 Mar 2025 13:29:49 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Vikash Garodia <quic_vgarodia@...cinc.com>
Cc: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
Dikshita Agarwal <quic_dikshita@...cinc.com>,
Abhinav Kumar <quic_abhinavk@...cinc.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>, linux-arm-msm@...r.kernel.org,
linux-media@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] arm64: dts: qcom: sa8775p: add support for video node
On Mon, Mar 17, 2025 at 11:30:16AM +0530, Vikash Garodia wrote:
>
> On 3/16/2025 12:02 AM, Dmitry Baryshkov wrote:
> > On Sat, Mar 15, 2025 at 02:43:30PM +0100, Konrad Dybcio wrote:
> >> On 3/11/25 1:03 PM, Vikash Garodia wrote:
> >>> Video node enables video on Qualcomm SA8775P platform.
> >>>
> >>> Signed-off-by: Vikash Garodia <quic_vgarodia@...cinc.com>
> >>> ---
> >>> arch/arm64/boot/dts/qcom/sa8775p.dtsi | 67 +++++++++++++++++++++++++++++++++++
> >>> 1 file changed, 67 insertions(+)
> >>>
> >>
> >>> + <&mmss_noc MASTER_VIDEO_P0 QCOM_ICC_TAG_ALWAYS
> >>> + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
> >>> + interconnect-names = "cpu-cfg",
> >>> + "video-mem";
> >>> +
> >>> + firmware-name = "qcom/vpu/vpu30_p4_s6.mbn";
> >
> > Firmware-name should be a part of the board DT file rather than the SoC
> > DT.
> Given that video ip is independent of any board, remains same for any board
> variant of SA8775p, and again for the same reason, PIL, aspects of video driver
> was made out of probe, i would prefer to keep it in SOC. Again, this can be
> overridden in board specific variant DT, if any case arise, incase.
This file is also board-specific and will not be accepted by a board
fused to work with a particular set of CA keys. So, no. This needs to
go to the board DT file.
--
With best wishes
Dmitry
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