[PATCH RFC 0/8] Add RZ/G2L MTU3a MFD and Counter driver

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The RZ/G2L multi-function timer pulse unit 3 (MTU3a) is embedded in
the Renesas RZ/G2L family SoC's. It consists of eight 16-bit timer
channels and one 32-bit timer channel. It supports the following
functions
 - Counter
 - Timer
 - PWM

This patch series aim to add MFD and counter driver for MTU3a.
Subsequent patch seies will add TImer and PWM driver support
also enhancements to counter driver.

The 8/16/32 bit registers are mixed in each channel. The HW
specifications of the IP is described in patch#2.

Current patch set is tested for 16-bit phase counting mode on
MTU1 channel.

Please share your valuable comments on this patch series.

Biju Das (8):
  clk: renesas: r9a07g044: Add MTU3a clock and reset entry
  dt-bindings: mfd: Document RZ/G2L MTU3a bindings
  mfd: Add RZ/G2L MTU3 driver
  dt-bindings: mfd: rzg2l-mtu3: Document RZ/G2UL MTU3 counter
  counter: Add RZ/G2L MTU3 counter driver
  arm64: dts: renesas: r9a07g044: Add MTU3a node
  arm64: dts: renesas: r9a07g054: Add MTU3a node
  arm64: dts: renesas: rzg2l-smarc: [HACK] Enable MTU for 16-bit phase
    count testing

 .../bindings/mfd/renesas,rzg2l-mtu3.yaml      | 310 ++++++++++++++
 arch/arm64/boot/dts/renesas/r9a07g044.dtsi    |  83 ++++
 .../boot/dts/renesas/r9a07g044l2-smarc.dts    |   2 -
 arch/arm64/boot/dts/renesas/r9a07g054.dtsi    |  83 ++++
 .../dts/renesas/rzg2l-smarc-pinfunction.dtsi  |  11 +
 arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi  |  25 +-
 drivers/clk/renesas/r9a07g044-cpg.c           |   5 +-
 drivers/counter/Kconfig                       |   9 +
 drivers/counter/Makefile                      |   1 +
 drivers/counter/rzg2l-mtu3-cnt.c              | 367 +++++++++++++++++
 drivers/mfd/Kconfig                           |   9 +
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/rzg2l-mtu3.c                      | 377 ++++++++++++++++++
 include/linux/mfd/rzg2l-mtu3.h                | 124 ++++++
 14 files changed, 1403 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/renesas,rzg2l-mtu3.yaml
 create mode 100644 drivers/counter/rzg2l-mtu3-cnt.c
 create mode 100644 drivers/mfd/rzg2l-mtu3.c
 create mode 100644 include/linux/mfd/rzg2l-mtu3.h

-- 
2.25.1




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