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From: Bryan O'Donoghue <bod@kernel.org>
To: Atanas Filipov <atanas.filipov@oss.qualcomm.com>,
	linux-media@vger.kernel.org
Cc: mchehab@kernel.org, robh@kernel.org, krzk+dt@kernel.org,
	conor+dt@kernel.org, andersson@kernel.org,
	konradybcio@kernel.org, linux-arm-msm@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 2/4] arm64: dts: qcom: sm8550: Add JPEG encoder node
Date: Sun, 14 Jun 2026 01:53:22 +0100	[thread overview]
Message-ID: <be6f78ce-d347-4225-a03e-6d1adecbfd4c@kernel.org> (raw)
In-Reply-To: <2a0fc1ce-2f19-4268-8117-cd90b512312a@oss.qualcomm.com>

On 13/06/2026 17:05, Atanas Filipov wrote:
> Checked.  The MMCX/MXC dependency is covered transitively — camcc
> itself declares:
> 
>     power-domains = <&rpmhpd RPMHPD_MMCX>, <&rpmhpd RPMHPD_MXC>;
> 
> CAM_CC_TITAN_TOP_GDSC is a subdomain of camcc, so the RPMh votes are
> enforced before any consumer is powered on.

Powered on yes, scaling the voltage correctly no.

> This matches the pattern used by every other single-GDSC camera node
> in the upstream tree (cci0/1/2 on sm8250, sm8550, sm8650) — none of
> them list MMCX/MXC directly.  No change needed.

CCI doesn't have any operating points. Please check the clock frequency 
plans.

> afilipov
> 
> On 6/13/2026 2:52 AM, Bryan O'Donoghue wrote:

Honestly. Stop top posting !

Documentation/process/submitting-patches.rst:.. _interleaved_replies:

sm8650 which you have cited, has operating points for the JPEG encoder 
and votes, must vote, on MXC. I believe the same as Hamoa for the JPEG 
core clock.

This is melting my head a bit now TBH.

---
bod

  reply	other threads:[~2026-06-14  0:53 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-12 19:44 [PATCH v1 0/4] This series adds support for the Qualcomm JPEG V4L2 mem2mem encoder Atanas Filipov
2026-06-12 19:44 ` [PATCH v1 1/4] dt-bindings: media: qcom: Add JPEG encoder binding Atanas Filipov
2026-06-12 19:57   ` sashiko-bot
2026-06-12 20:42   ` Frank Li
2026-06-12 23:17   ` Bryan O'Donoghue
2026-06-12 23:38   ` Bryan O'Donoghue
2026-06-13 18:42   ` Krzysztof Kozlowski
2026-06-12 19:44 ` [PATCH v1 2/4] arm64: dts: qcom: sm8550: Add JPEG encoder node Atanas Filipov
2026-06-12 20:06   ` sashiko-bot
2026-06-12 23:14   ` Bryan O'Donoghue
2026-06-13  9:24     ` Atanas Filipov
2026-06-13  9:52       ` Bryan O'Donoghue
2026-06-13 11:16         ` Atanas Filipov
2026-06-14  1:13           ` Bryan O'Donoghue
2026-06-12 23:52   ` Bryan O'Donoghue
2026-06-13 16:05     ` Atanas Filipov
2026-06-14  0:53       ` Bryan O'Donoghue [this message]
2026-06-12 19:44 ` [PATCH v1 3/4] arm64: dts: qcom: sm8250: " Atanas Filipov
2026-06-12 19:44 ` [PATCH v1 4/4] media: qcom: jpeg: Add Qualcomm JPEG V4L2 encoder Atanas Filipov
2026-06-12 20:23   ` sashiko-bot
2026-06-12 20:53   ` Frank Li
2026-06-13 18:43   ` Krzysztof Kozlowski

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