linux-kernel - Re: [PATCH 01/11] dt-bindings: phy: rockchip,inno-usb2phy: Require GRF for RK3568/RV1108

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Message-ID: <20250725230355.GB1993803-robh@kernel.org>
Date: Fri, 25 Jul 2025 18:03:55 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Jonas Karlman <jonas@...boo.se>
Cc: linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	linux-kernel@...r.kernel.org,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Yao Zi <ziyao@...root.org>, devicetree@...r.kernel.org,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>, linux-phy@...ts.infradead.org,
	Vinod Koul <vkoul@...nel.org>, Chukun Pan <amadeus@....edu.cn>
Subject: Re: [PATCH 01/11] dt-bindings: phy: rockchip,inno-usb2phy: Require
 GRF for RK3568/RV1108


On Wed, 23 Jul 2025 12:22:59 +0000, Jonas Karlman wrote:
> Typically these Rockchip USB2 PHYs are fully contained within a single
> GRF. However, for RK3568 and RV1108 regs to control the USB2 PHY is
> located in a different GRF compared to the base address.
> 
> Update this binding to require rockchip,usbgrf for RK3568 and RV1108 to
> properly reflect that the USB GRF is required to control the USB2 PHYs
> on these variants. Also disable use of rockchip,usbgrf for variants
> where it is not required.
> 
> This should not introduce any breakage as the affected usb2phy nodes for
> RK3568 and RV1108 were added together with a rockchip,usbgrf phandle in
> their initial commit.
> 
> Signed-off-by: Jonas Karlman <jonas@...boo.se>
> ---
>  .../bindings/phy/rockchip,inno-usb2phy.yaml        | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 

Acked-by: Rob Herring (Arm) <robh@...nel.org>