From: Conor Dooley <conor@kernel.org>
To: Gerald Loacker <gerald.loacker@wolfvision.net>
Cc: Vinod Koul <vkoul@kernel.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Heiko Stuebner <heiko@sntech.de>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
linux-phy@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH 2/3] dt-bindings: phy: rockchip-inno-csi-dphy: add rockchip,clk-lane-phase property
Date: Wed, 17 Jun 2026 16:51:56 +0100 [thread overview]
Message-ID: <20260617-deviate-sulk-c57104ef939f@spud> (raw)
In-Reply-To: <20260617-feature-mipi-csi-dphy-4k60-v1-2-4611ff00b0ff@wolfvision.net>
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On Wed, Jun 17, 2026 at 02:23:14PM +0200, Gerald Loacker wrote:
> Add support for the optional rockchip,clk-lane-phase device tree property
> to allow board-specific tuning of the clock lane sampling phase for
> improved signal integrity across supported data rates.
>
> Signed-off-by: Gerald Loacker <gerald.loacker@wolfvision.net>
> ---
> Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml b/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml
> index 03950b3cad08c..0d824d1511bc0 100644
> --- a/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml
> +++ b/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml
> @@ -56,6 +56,13 @@ properties:
> description:
> Some additional phy settings are access through GRF regs.
>
> + rockchip,clk-lane-phase:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + minimum: 0
> + maximum: 7
> + description:
> + Clock lane sampling phase in 40 ps steps. The hardware default is 3.
Can this instead become rockchip,clk-lane-phase-ps and be listed in the
actual unit?
With the -ps suffix, you can then drop the $ref.
The default should be listed as "default: 3" (or default: 120)
pw-bot: changes-requested
> +
> required:
> - compatible
> - reg
>
> --
> 2.34.1
>
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next prev parent reply other threads:[~2026-06-17 15:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-17 12:23 [PATCH 0/3] phy: rockchip: inno-csidphy: fix 2500 Mbps support and add clock lane phase tuning Gerald Loacker
2026-06-17 12:23 ` [PATCH 1/3] phy: rockchip: phy-rockchip-inno-csidphy: fix rk1808 hsfreq table Gerald Loacker
2026-06-17 12:31 ` sashiko-bot
2026-06-17 12:23 ` [PATCH 2/3] dt-bindings: phy: rockchip-inno-csi-dphy: add rockchip,clk-lane-phase property Gerald Loacker
2026-06-17 15:51 ` Conor Dooley [this message]
2026-06-17 16:20 ` Gerald Loacker
2026-06-17 12:23 ` [PATCH 3/3] phy: rockchip: phy-rockchip-inno-csidphy: add clock lane phase tuning Gerald Loacker
2026-06-17 12:32 ` sashiko-bot
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