Re: [PATCH v2 9/9] riscv: defconfig: enable ChipIdea USB controller support

From: Yixun Lan <dlan@kernel.org>
To: Junzhong Pan <panjunzhong@linux.spacemit.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Xu Yang <xu.yang_2@nxp.com>,
	Peng Fan <peng.fan@nxp.com>, Peter Chen <peter.chen@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,
	linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
	spacemit@lists.linux.dev,
	Troy Mitchell <troy.mitchell@linux.spacemit.com>,
	Ze Huang <huang.ze@linux.dev>
Subject: Re: [PATCH v2 9/9] riscv: defconfig: enable ChipIdea USB controller support
Date: Tue, 8 Sep 2026 22:07:03 +0000	[thread overview]
Message-ID: <20260908220703-GKD2346@kernel.org> (raw)
In-Reply-To: <20260908-b4-spacemit-k1-usb2-v2-9-f07342ffa051@linux.spacemit.com>

Hi Junzhong,

On 17:48 Tue 08 Sep     , Junzhong Pan wrote:
> Enable the ChipIdea USB2 controller and SpacemiT K1 USB2 PHY to support
> USB2.0 controllers on the SpacemiT K1 SoC.
> 
> Tested-by: Ze Huang <huang.ze@linux.dev>
> Signed-off-by: Junzhong Pan <panjunzhong@linux.spacemit.com>
> ---
>  arch/riscv/configs/defconfig | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig
> index 04ae305d5511..5b556488de66 100644
> --- a/arch/riscv/configs/defconfig
> +++ b/arch/riscv/configs/defconfig
> @@ -222,6 +222,9 @@ CONFIG_USB_CDNS3_HOST=y
>  CONFIG_USB_CDNS3_STARFIVE=m
>  CONFIG_USB_MUSB_HDRC=m
>  CONFIG_USB_MUSB_SUNXI=m
> +CONFIG_USB_CHIPIDEA=y
> +CONFIG_USB_CHIPIDEA_UDC=y
> +CONFIG_USB_CHIPIDEA_HOST=y
I know some prefer to enable as loadable module for non major drivers
so, can you check if it works as module? and alter the config

>  CONFIG_NOP_USB_XCEIV=m
>  CONFIG_USB_GADGET=y
>  CONFIG_USB_CONFIGFS=m
> @@ -272,6 +275,7 @@ CONFIG_PWM=y
>  CONFIG_PWM_PXA=m
>  CONFIG_THEAD_C900_ACLINT_SSWI=y
>  CONFIG_PHY_SUN4I_USB=m
> +CONFIG_PHY_SPACEMIT_K1_USB2=y
>  CONFIG_PHY_STARFIVE_JH7110_DPHY_RX=m
>  CONFIG_PHY_STARFIVE_JH7110_PCIE=m
>  CONFIG_PHY_STARFIVE_JH7110_USB=m
> 
> -- 
> 2.34.1
> 

-- 
Yixun Lan (dlan)