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

From: Zong Li
Date: Mon Feb 07 2022 - 00:55:00 EST


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.

> > clk: sifive: Move all stuff into SoCs header files from C files
> >
> > .../devicetree/bindings/gpio/sifive,gpio.yaml | 2 +-
> > .../bindings/pci/sifive,fu740-pcie.yaml | 2 +-
> > .../bindings/serial/sifive-serial.yaml | 2 +-
> > arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 22 +--
> > arch/riscv/boot/dts/sifive/fu740-c000.dtsi | 26 ++--
> > drivers/clk/sifive/Makefile | 2 +-
> > drivers/clk/sifive/fu540-prci.c | 89 ------------
> > drivers/clk/sifive/fu540-prci.h | 91 +++++++++++-
> > drivers/clk/sifive/fu740-prci.c | 134 ------------------
> > drivers/clk/sifive/fu740-prci.h | 130 ++++++++++++++++-
> > drivers/clk/sifive/sifive-prci.c | 5 -
> > include/dt-bindings/clock/sifive-fu540-prci.h | 8 +-
> > include/dt-bindings/clock/sifive-fu740-prci.h | 18 +--
> > 13 files changed, 254 insertions(+), 277 deletions(-)
> > delete mode 100644 drivers/clk/sifive/fu540-prci.c
> > delete mode 100644 drivers/clk/sifive/fu740-prci.c