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Message-ID: <ZOuOdt2/y5mKuuv0@shell.armlinux.org.uk>
Date: Sun, 27 Aug 2023 18:57:10 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Emil Renner Berthing <kernel@...il.dk>
Cc: Jisheng Zhang <jszhang@...nel.org>,
Samin Guo <samin.guo@...rfivetech.com>,
Giuseppe Cavallaro <peppe.cavallaro@...com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Jose Abreu <joabreu@...opsys.com>,
"David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 2/2] net: stmmac: dwmac-starfive: remove
unnecessary clk_get_rate()
On Sun, Aug 27, 2023 at 07:33:10PM +0200, Emil Renner Berthing wrote:
> On Sun, 27 Aug 2023 at 15:53, Jisheng Zhang <jszhang@...nel.org> wrote:
> >
> > In starfive_dwmac_fix_mac_speed(), the rate gotten by clk_get_rate()
> > is not necessary, remove the clk_get_rate() calling.
>
> Thanks. I suggested this change during the initial review, but someone
> wanted the code as it is. I must admit I don't understand why, so
> Reviewed-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
The code in starfive_dwmac_fix_mac_speed() is a repeated pattern amongst
many drivers, and having each platform driver re-implement this is not
sane. Those who know me will know that I have a patch that cleans this
all up - moving basically the guts of this to a library function which
platform drivers can make use of.
It's not like the clock rates are somehow special - they're standard for
10M/100M/1G speeds on a GMII-family interface, and the 10M/100M also
share the clock rates with MII.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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