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Date: Wed, 27 May 2026 15:19:23 +0200
From: Drew Fustini <fustini@kernel.org>
To: MoeLeak <i@leak.moe>
Cc: Guo Ren <guoren@kernel.org>, Fu Wei <wefu@redhat.com>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>, Alexandre Ghiti <alex@ghiti.fr>,
	linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/2] riscv: dts: thead: Enable WiFi on Lichee Pi 4A
Message-ID: <ahbvWzodp1SsBb5a@gen8>
References: <20260508-lichee-pi-4a-wifi-v2-0-7acf63559e62@leak.moe>
 <20260508-lichee-pi-4a-wifi-v2-2-7acf63559e62@leak.moe>
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In-Reply-To: <20260508-lichee-pi-4a-wifi-v2-2-7acf63559e62@leak.moe>

On Fri, May 08, 2026 at 07:44:14PM +0800, MoeLeak wrote:
> The Lichee Pi 4A has an RTL8723DS WiFi module connected to the TH1520
> SDIO1 controller. The module reset line is driven through a PCA9557 GPIO
> expander on the I2C1 bus.
> 
> Enable I2C1 for the GPIO expander and configure SDIO1 as a non-removable
> 4-bit SDIO bus using an mmc-pwrseq-simple reset sequence so the WiFi
> device can be powered and enumerated.
> 
> Signed-off-by: MoeLeak <i@leak.moe>
> ---
>  arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts | 47 +++++++++++++++++++++++
>  1 file changed, 47 insertions(+)

Reviewed-by: Drew Fustini <fustini@kernel.org>

Thanks for fixing up previous revision.

Drew