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From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To: Loic Poulain <loic.poulain@oss.qualcomm.com>
Cc: Bryan O'Donoghue <bod@kernel.org>,
	Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>,
	Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org,
	linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v9 1/2] dt-bindings: phy: qcom: Add CSI2 C-PHY/DPHY schema
Date: Thu, 16 Jul 2026 13:52:09 +0100	[thread overview]
Message-ID: <c6015615-278b-4840-a79a-9c7520141341@linaro.org> (raw)
In-Reply-To: <CAFEp6-3U66hvi0iZrtRbyY3B-uwEap6xDFHFkVoaEBwWhV74Uw@mail.gmail.com>

On 16/07/2026 12:28, Loic Poulain wrote:
>> I just wonder if there's any real upside to all that additional work and
>> delay/churn.
> There is no really need to support runtime configuration as of now
> since we only support D-PHY, so the delta for v10*should* be tiny,
> either a bus-type sanity read in parse_routing(), or even nothing at
> DT parse and a future configure() branch when C-PHY lands.

Right, well I tend to agree that a runtime configure() is out of scope, 
so, I'm going to stick to Rob's guidance.

If you look at other upstream stuff you will see phy-cells = 0 for 
single mode PHYs and phy-cells = 1 for PHYs that can be in any mode.

Consumer configures the mode in DT like every other upstream MIPI CSI2 PHY.

---
bod

  reply	other threads:[~2026-07-16 12:52 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-07 23:39 [PATCH v9 0/2] phy: qcom-mipi-csi2: Add a CSI2 MIPI DPHY driver Bryan O'Donoghue
2026-07-07 23:39 ` [PATCH v9 1/2] dt-bindings: phy: qcom: Add CSI2 C-PHY/DPHY schema Bryan O'Donoghue
2026-07-08  6:15   ` Krzysztof Kozlowski
2026-07-08  7:44   ` Vladimir Zapolskiy
2026-07-08 21:55     ` Bryan O'Donoghue
2026-07-09  7:40       ` Vladimir Zapolskiy
2026-07-12 23:18         ` Bryan O'Donoghue
2026-07-16  8:56           ` Loic Poulain
2026-07-16  9:42             ` Bryan O'Donoghue
2026-07-16 11:28               ` Loic Poulain
2026-07-16 12:52                 ` Bryan O'Donoghue [this message]
2026-07-07 23:39 ` [PATCH v9 2/2] phy: qcom-mipi-csi2: Add a CSI2 MIPI DPHY driver Bryan O'Donoghue
2026-07-07 23:54   ` sashiko-bot
2026-07-08  7:57   ` Wenmeng Liu
2026-07-09 16:29   ` Frank Li

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