linux-kernel - [PATCH v2 0/3] clk: add driver for the SiFive FU540 PRCI and PLLs it controls

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Message-Id: <20181020135024.28573-1-paul.walmsley@sifive.com>
Date:   Sat, 20 Oct 2018 06:50:21 -0700
From:   Paul Walmsley <paul.walmsley@...ive.com>
To:     linux-clk@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Albert Ou <aou@...s.berkeley.edu>,
        "Wesley W . Terpstra" <wesley@...ive.com>,
        Palmer Dabbelt <palmer@...ive.com>,
        Megan Wachs <megan@...ive.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/3] clk: add driver for the SiFive FU540 PRCI and PLLs it controls

Add a driver for the SiFive FU540 PRCI IP block, which handles clock and
some device reset control for the SiFive FU540 chip.  Also add a driver-
independent library for the Analog Bits Wide-Range PLL (WRPLL), used by
the PRCI driver to monitor and control the WRPLL instances on the FU540
chip.

It's been a long time since I've worked on Linux clock code, so Mike &
Stephen, I'd appreciate a close look at the PRCI driver to make sure
what it's doing makes sense.

Boot-tested on a SiFive HiFive Unleashed board.  COREPLL rate changes
and notification were also tested on the same board.

This second version corrects the DT binding documentation patch; an
out-of-date version of that patch was sent with the first version.

This patch series is also available at:

https://github.com/sifive/riscv-linux/tree/dev/paulw/prci-v4.19-rc7

Paul Walmsley (3):
  clk: analogbits: add Wide-Range PLL library
  dt-bindings: clk: add documentation for the SiFive PRCI driver
  clk: sifive: add a driver for the SiFive FU540 PRCI IP block

 .../bindings/clock/sifive/fu540-prci.txt      |  43 ++
 MAINTAINERS                                   |   6 +
 drivers/clk/Kconfig                           |   2 +
 drivers/clk/Makefile                          |   2 +
 drivers/clk/analogbits/Kconfig                |   3 +
 drivers/clk/analogbits/Makefile               |   2 +
 drivers/clk/analogbits/wrpll-cln28hpc.c       | 387 +++++++++++
 drivers/clk/sifive/Kconfig                    |  18 +
 drivers/clk/sifive/Makefile                   |   1 +
 drivers/clk/sifive/fu540-prci.c               | 634 ++++++++++++++++++
 include/linux/clk/analogbits-wrpll-cln28hpc.h |  99 +++
 include/linux/clk/sifive-fu540-prci.h         |  27 +
 12 files changed, 1224 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/sifive/fu540-prci.txt
 create mode 100644 drivers/clk/analogbits/Kconfig
 create mode 100644 drivers/clk/analogbits/Makefile
 create mode 100644 drivers/clk/analogbits/wrpll-cln28hpc.c
 create mode 100644 drivers/clk/sifive/Kconfig
 create mode 100644 drivers/clk/sifive/Makefile
 create mode 100644 drivers/clk/sifive/fu540-prci.c
 create mode 100644 include/linux/clk/analogbits-wrpll-cln28hpc.h
 create mode 100644 include/linux/clk/sifive-fu540-prci.h

Cc: Michael Turquette <mturquette@...libre.com>
Cc: Stephen Boyd <sboyd@...nel.org>
Cc: Albert Ou <aou@...s.berkeley.edu>
Cc: Wesley W. Terpstra <wesley@...ive.com>
Cc: Palmer Dabbelt <palmer@...ive.com>
Cc: Megan Wachs <megan@...ive.com>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Cc: devicetree@...r.kernel.org
Cc: linux-riscv@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Cc: linux-clk@...r.kernel.org

-- 
2.19.1