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dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="E072VCYy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 050901F000E9; Mon, 20 Jul 2026 16:56:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784566619; bh=CL7VZPLwd2s3IweYjUVZvbpDs9ZCkifwypl2mqHFzhk=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=E072VCYy+jt2/yl3Fjpcd/VvtYe/VCVFc2ag8TFOdnoOMSntM1zRVioDV7bQ1U9Af 7nYE0YK6eDqTm+S8OZmBou484JFwi3vBx/1wQuvRiGAXv887+e6AFPf4wRMD6ZtfyC jUULNDqcsgPLSR4xytowO4Vgr/GdVsFUGu52BQ6mTWI62TPg1C4UAczuWI3IGp2hUM DGUrvM0stglq0jOG4oTh9TSKqMy00uoym1JcTehq9++bAlBmkvOqQYjJse2WRUTVNh sZdj8bcyzWrEfKuYhRthAvWXJ2rsoWXh4jxws4OLntQFuabi61/MJOXeDN2zLykvF/ ZyQVcai0IGtTg== Date: Mon, 20 Jul 2026 09:56:58 -0700 From: Drew Fustini To: Icenowy Zheng Cc: Icenowy Zheng , Guo Ren , Fu Wei , Rob Herring , Krzysztof Kozlowski , Conor Dooley , MoeLeak , Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Emil Renner Berthing Subject: Re: [PATCH v2 4/5] riscv: dts: thead: Add IO labels for the IO expansion on I2C1 Message-ID: References: <20260714074515.1959352-1-zhengxingda@iscas.ac.cn> <20260714074515.1959352-5-zhengxingda@iscas.ac.cn> <1E3154C2-B5BE-46FD-BBFC-87E56FAE3AFE@icenowy.me> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1E3154C2-B5BE-46FD-BBFC-87E56FAE3AFE@icenowy.me> On Fri, Jul 17, 2026 at 12:11:23PM +0800, Icenowy Zheng wrote: > > > 于 2026年7月17日 GMT+08:00 04:52:19，Drew Fustini 写道： > >On Tue, Jul 14, 2026 at 03:45:14PM +0800, Icenowy Zheng wrote: > >> From: Emil Renner Berthing > >> > >> Add labels for GPIOs on the IO expansion chip on the I2C1 bus. > >> > >> Signed-off-by: Emil Renner Berthing > >> [Icenowy: Splitted off the patch adding all 3 IO expansions] > >> Signed-off-by: Icenowy Zheng > >> --- > >> arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts | 8 ++++++++ > >> 1 file changed, 8 insertions(+) > >> > >> diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts > >> index 74b120c6b063a..78f5979a56c14 100644 > >> --- a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts > >> +++ b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts > >> @@ -128,6 +128,14 @@ ioexp2: gpio@18 { > >> reg = <0x18>; > >> gpio-controller; > >> #gpio-cells = <2>; > >> + gpio-line-names = "", > >> + "cam0_reset", > >> + "cam1_reset", > >> + "cam2_reset", > >> + "wl_host_wake", > > > >I am not sure the line name really matters all that, but it seems that > >pin 4 is also used as a reset gpio: > > The "host" here is subject, which means "this pins is used by the host to wake the wl". > > Maybe I should take the schematics name, "wl_host_wake_dev"? Or use another name on the page for Wi-Fi, "wl_reg_on"? I thnk "wl_host_wake_dev" is slightly better in terms of searching the PDF [1] and finding the "IO Expansion 2" section. This is minor change so I can just fix up when applying if you are okay with that. Thanks, Drew [1] https://dl.sipeed.com/shareURL/LICHEE/licheepi4a/02_Schematic