From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: 韦尚娟 <weishangjuan@eswincomputing.com>
Cc: devicetree@vger.kernel.org, andrew+netdev@lunn.ch,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
netdev@vger.kernel.org, pabeni@redhat.com,
mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com,
vladimir.oltean@nxp.com, yong.liang.choong@linux.intel.com,
anthony.l.nguyen@intel.com,
prabhakar.mahadev-lad.rj@bp.renesas.com, jan.petrous@oss.nxp.com,
jszhang@kernel.org, inochiama@gmail.com, 0x1207@gmail.com,
boon.khai.ng@altera.com, linux-kernel@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org, ningyu@eswincomputing.com,
linmin@eswincomputing.com, lizhi2@eswincomputing.com,
pinkesh.vaghela@einfochips.com
Subject: Re: Re: [PATCH v7 2/2] ethernet: eswin: Add eic7700 ethernet driver
Date: Tue, 23 Sep 2025 10:09:06 +0100 [thread overview]
Message-ID: <aNJjshm4Z8H2Z8_V@shell.armlinux.org.uk> (raw)
In-Reply-To: <30080c70.16e1.199748921d3.Coremail.weishangjuan@eswincomputing.com>
On Tue, Sep 23, 2025 at 11:06:08AM +0800, 韦尚娟 wrote:
> In the current eic7700_dwmac glue driver, the regmap_read()/write()
> operations(for phy_ctrl1, axi_lp_ctrl1, and the RX/TX delay registers))are
> performed directly in the probe() function. Would it be cleaner to move these
> register configurations into the init() callback instead, so that they are
> also reapplied during resume()?
This is a question I can't answer definitively as I don't know what
happens during a suspend on your hardware, and thus which registers
are lost / reset by the time the system resumes. So I can only give
the obvious guidance.
If the settings in the delay registers are lost over a suspend/resume
then they need to be re-initialised after resume.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2025-09-23 9:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-18 8:56 [PATCH v7 0/2] Add driver support for Eswin eic7700 SoC ethernet controller weishangjuan
2025-09-18 8:59 ` [PATCH v7 1/2] dt-bindings: ethernet: eswin: Document for EIC7700 SoC weishangjuan
2025-09-18 10:39 ` Rob Herring (Arm)
2025-10-14 8:53 ` Bo Gan
2025-10-14 10:00 ` 李志
2025-09-18 9:00 ` [PATCH v7 2/2] ethernet: eswin: Add eic7700 ethernet driver weishangjuan
2025-09-18 16:22 ` Andrew Lunn
2025-09-18 17:16 ` Russell King (Oracle)
2025-09-23 3:06 ` 韦尚娟
2025-09-23 9:09 ` Russell King (Oracle) [this message]
2025-09-30 10:01 ` 李志
2025-09-23 16:33 ` Maxime Chevallier
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