linux-kernel - RE: [PATCH v1 06/16] clk: starfive: Add JH8100 System clock generator driver

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Message-ID: <88f5651b913d4b2f9e9c76ecf8429aac@EXMBX066.cuchost.com>
Date: Wed, 20 Dec 2023 01:35:15 +0000
From: JeeHeng Sia <jeeheng.sia@...rfivetech.com>
To: Emil Renner Berthing <emil.renner.berthing@...onical.com>,
	"kernel@...il.dk" <kernel@...il.dk>, "conor@...nel.org" <conor@...nel.org>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	"krzysztof.kozlowski+dt@...aro.org" <krzysztof.kozlowski+dt@...aro.org>,
	"paul.walmsley@...ive.com" <paul.walmsley@...ive.com>, "palmer@...belt.com"
	<palmer@...belt.com>, "aou@...s.berkeley.edu" <aou@...s.berkeley.edu>,
	"mturquette@...libre.com" <mturquette@...libre.com>, "sboyd@...nel.org"
	<sboyd@...nel.org>, "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>, "Hal
 Feng" <hal.feng@...rfivetech.com>, Xingyu Wu <xingyu.wu@...rfivetech.com>
CC: "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>, Leyfoon Tan
	<leyfoon.tan@...rfivetech.com>
Subject: RE: [PATCH v1 06/16] clk: starfive: Add JH8100 System clock generator
 driver



> -----Original Message-----
> From: Emil Renner Berthing <emil.renner.berthing@...onical.com>
> Sent: Wednesday, December 20, 2023 1:40 AM
> To: JeeHeng Sia <jeeheng.sia@...rfivetech.com>; Emil Renner Berthing <emil.renner.berthing@...onical.com>; kernel@...il.dk;
> conor@...nel.org; robh+dt@...nel.org; krzysztof.kozlowski+dt@...aro.org; paul.walmsley@...ive.com; palmer@...belt.com;
> aou@...s.berkeley.edu; mturquette@...libre.com; sboyd@...nel.org; p.zabel@...gutronix.de; Hal Feng
> <hal.feng@...rfivetech.com>; Xingyu Wu <xingyu.wu@...rfivetech.com>
> Cc: linux-riscv@...ts.infradead.org; devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; linux-clk@...r.kernel.org; Leyfoon Tan
> <leyfoon.tan@...rfivetech.com>
> Subject: RE: [PATCH v1 06/16] clk: starfive: Add JH8100 System clock generator driver
> 
> JeeHeng Sia wrote:
> >
> >
> > > -----Original Message-----
> > > From: Emil Renner Berthing <emil.renner.berthing@...onical.com>
> > > Sent: Wednesday, December 13, 2023 7:57 PM
> > > To: JeeHeng Sia <jeeheng.sia@...rfivetech.com>; Emil Renner Berthing <emil.renner.berthing@...onical.com>; kernel@...il.dk;
> > > conor@...nel.org; robh+dt@...nel.org; krzysztof.kozlowski+dt@...aro.org; paul.walmsley@...ive.com; palmer@...belt.com;
> > > aou@...s.berkeley.edu; mturquette@...libre.com; sboyd@...nel.org; p.zabel@...gutronix.de; Hal Feng
> > > <hal.feng@...rfivetech.com>; Xingyu Wu <xingyu.wu@...rfivetech.com>
> > > Cc: linux-riscv@...ts.infradead.org; devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; linux-clk@...r.kernel.org; Leyfoon
> Tan
> > > <leyfoon.tan@...rfivetech.com>
> > > Subject: RE: [PATCH v1 06/16] clk: starfive: Add JH8100 System clock generator driver
> > >
> > > JeeHeng Sia wrote:
> > > > > -----Original Message-----
> > > > > From: Emil Renner Berthing <emil.renner.berthing@...onical.com>
> > > > > Sent: Saturday, December 9, 2023 12:25 AM
> > > > > To: JeeHeng Sia <jeeheng.sia@...rfivetech.com>; kernel@...il.dk; conor@...nel.org; robh+dt@...nel.org;
> > > > > krzysztof.kozlowski+dt@...aro.org; paul.walmsley@...ive.com; palmer@...belt.com; aou@...s.berkeley.edu;
> > > > > mturquette@...libre.com; sboyd@...nel.org; p.zabel@...gutronix.de; emil.renner.berthing@...onical.com; Hal Feng
> > > > > <hal.feng@...rfivetech.com>; Xingyu Wu <xingyu.wu@...rfivetech.com>
> > > > > Cc: linux-riscv@...ts.infradead.org; devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; linux-clk@...r.kernel.org;
> Leyfoon
> > > Tan
> > > > > <leyfoon.tan@...rfivetech.com>
> > > > > Subject: Re: [PATCH v1 06/16] clk: starfive: Add JH8100 System clock generator driver
> > > > >
> > > > > Sia Jee Heng wrote:
> > > > > > Add support for JH8100 System clock generator.
> > > > > >
> > > > > > Signed-off-by: Sia Jee Heng <jeeheng.sia@...rfivetech.com>
> > > > > > Reviewed-by: Ley Foon Tan <leyfoon.tan@...rfivetech.com>
> > > > > > ---
> > > > > >  MAINTAINERS                                   |   8 +
> > > > > >  drivers/clk/starfive/Kconfig                  |   9 +
> > > > > >  drivers/clk/starfive/Makefile                 |   1 +
> > > > > >  drivers/clk/starfive/clk-starfive-common.h    |   9 +-
> > > > > >  drivers/clk/starfive/jh8100/Makefile          |   3 +
> > > > > >  .../clk/starfive/jh8100/clk-starfive-jh8100.h |  11 +
> > > > > >  drivers/clk/starfive/jh8100/clk-sys.c         | 455 ++++++++++++++++++
> > > > > >  7 files changed, 495 insertions(+), 1 deletion(-)
> > > > > >  create mode 100644 drivers/clk/starfive/jh8100/Makefile
> > > > > >  create mode 100644 drivers/clk/starfive/jh8100/clk-starfive-jh8100.h
> > > > > >  create mode 100644 drivers/clk/starfive/jh8100/clk-sys.c
> > > ...
> > > > > > diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
> > > > > > index 012f7ee83f8e..6cb3ce823330 100644
> > > > > > --- a/drivers/clk/starfive/Makefile
> > > > > > +++ b/drivers/clk/starfive/Makefile
> > > > > > @@ -10,3 +10,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)	+= clk-starfive-jh7110-aon.o
> > > > > >  obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)	+= clk-starfive-jh7110-stg.o
> > > > > >  obj-$(CONFIG_CLK_STARFIVE_JH7110_ISP)	+= clk-starfive-jh7110-isp.o
> > > > > >  obj-$(CONFIG_CLK_STARFIVE_JH7110_VOUT)	+= clk-starfive-jh7110-vout.o
> > > > > > +obj-$(CONFIG_CLK_STARFIVE_JH8100_SYS)	+= jh8100/
> > > > >
> > > > > I don't really see why do you need a special subdirectory for the JH8100? The
> > > > > JH7110 drivers do fine without it.
> > > > Each subfolder can represent a different platform, making it easier to
> > > > locate and maintain platform-specific code. Since the code is expected
> > > > to grow in the future, let's start organizing it in a folder-based structure
> > > > for easier maintenance at a later stage.
> > >
> > > Yes, but that's not what you're doing here. You're making just one of the 3
> > > almost identical drivers be different for no good reason.
> > I will restructure it for the other 2 platforms.
> 
> That would be less bad, but you still haven't explained why you need to move
> everything around like that:
> https://lore.kernel.org/linux-riscv/CAJM55Z_3Mty2LftPVkQC1wbwtGeznMMAk9mAjH_GoNuL7CKtaQ@mail.gmail.com/
> 
> I don't think just "too many files" is a very good argument here. Just look at
> drivers/clk/sunxi
Thanks. Given that the trend is not to use subfolders to differentiate the platform
clock driver, I am okay with removing the subfolder and following the naming
convention from the JH71xx's file name.
> 
> /Emil