Re: [PATCH 0/4] Refactor the PRCI driver to reduce the complexity

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On Sat, Feb 19, 2022 at 6:23 AM Stephen Boyd <sboyd@xxxxxxxxxx> wrote:
>
> Quoting Zong Li (2022-02-06 21:21:50)
> > On Sat, Feb 5, 2022 at 2:56 AM Palmer Dabbelt <palmer@xxxxxxxxxxx> wrote:
> > >
> > > On Wed, 19 Jan 2022 01:28:37 PST (-0800), zong.li@xxxxxxxxxx wrote:
> > > > This patch set tries to improve the PRCI driver to reduce the
> > > > complexity, we remove the SoCs C files by putting putting all stuff in
> > > > each SoCs header file, and include these SoCs-specific header files in
> > > > core of PRCI. It can also avoid the W=1 kernel build warnings about
> > > > variable defined but not used [-Wunused-const-variable=], like 'commit
> > > > 487dc7bb6a0c ("clk: sifive:fu540-prci: Declare static const variable
> > > > 'prci_clk_fu540' where it's used")' does.
> > > >
> > > > This patch set also contains the dt-bindings and dts change, because
> > > > we change the macro name for fu540 and fu740 by adding the prefix
> > > > respectively.
> > > >
> > > > Thanks all for your review and suggestions.
> > > >
> > > > Zong Li (4):
> > > >   dt-bindings: change the macro name of prci in header files and example
> > > >   riscv: dts: Change the macro name of prci in each device node
> > > >   clk: sifive: Add SoCs prefix in each SoCs-dependent data
> > >
> > > IIUC these there aren't bisectable: the bindings change will break
> > > builds of the DTs and drivers.  I'm not sure what's generally the way to
> > > go with these, but I always try to avoid broken builds in the middle of
> > > patch sets.
> > >
> > > Aside from that this generally looks good to me, but the DT and clock
> > > folks are probably a better bet for a proper review here.  Happy to take
> > > this through the RISC-V tree, but IMO it's a better candidate for the
> > > clock tree so
> > >
> > > Acked-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx> # aside from breaking bisect
> > >
> > > Thanks!
> > >
> >
> > Many thanks for your review and reminding, and yes, it seems a bit
> > hard there since the DT binding docs and includes need to be a
> > separate patch.
> >
>
> Why not add new defines with the same numbers in a different file? Then
> a cycle or two later the conflicting defines can be removed? The driver
> can include the new file with the new defines while the old defines can
> be changed in parallel?

Hi Stephon, many thanks for your tips. I'm afraid that I don't
completely understand, does it mean that I can create a new temporary
file to define these numbers for the driver, and add a patch to remove
this file in the same patch set. If I understand correctly, let me
prepare the next version for doing that. Thanks.



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