[v2,00/28] Add new Renesas RZ/G3S SoC and RZ/G3S SMARC EVK

From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

Hi,

This patch series adds initial support for The Renesas RZ/G3S (R9A08G045{S33})
SoC. The RZ/G3S device is a general-purpose microprocessor with a
single-core Arm® Cortex®-A55 (1.1GHz) and a dual-core Arm® Cortex®-M33 (250MHz),
perfect for an IOT gateway controller.

This includes:
- SoC identification;
- clocks (core clocks, pin controller clock, serial interface, SD ch0
  clock) and corresponding resets;
- minimal device tree for SoM and carrier boards.

With this series Linux can boot from eMMC or SD card. The eMMC and uSD
interface are multiplexed on the SoM; selection is made using a hardware
switch.

Patches are gouped as follows:
- 01    documents scif support;
- 02-05	contain fixes on clock drivers identified while adding RZ/G3S
	support
- 06	clock cleanups identifies while adding support for RZ/G3S
- 07-13	clock changes needed by RZ/G3S
- 14-21	pinctrl changes needed by RZ/G3S
- 22-28 device tree support for RZ/G3S

Changes in v2:
- addressed review comments
- collected tags
- removed from series patches that were already integrated
- added patches:
	- [PATCH v2 19/28] dt-bindings: pinctrl: renesas: set additionalProperties: false
	- [PATCH v2 23/28] dt-bindings: arm: renesas: document RZ/G3S SMARC SoM
	- [PATCH v2 26/28] dt-bindings: arm: renesas: document SMARC Carrier-II EVK
- please see individual patches for detailed changes

Claudiu Beznea (28):
  dt-bindings: serial: renesas,scif: document r9a08g045 support
  clk: renesas: rzg2l: wait for status bit of SD mux before continuing
  clk: renesas: rzg2l: lock around writes to mux register
  clk: renesas: rzg2l: trust value returned by hardware
  clk: renesas: rzg2l: fix computation formula
  clk: renesas: rzg2l: remove critical area
  clk: renesas: rzg2l: add support for RZ/G3S PLL
  clk: renesas: rzg2l: add struct clk_hw_data
  clk: renesas: rzg2l: remove CPG_SDHI_DSEL from generic header
  clk: renesas: rzg2l: refactor sd mux driver
  clk: renesas: rzg2l: add a divider clock for RZ/G3S
  dt-bindings: clock: renesas,rzg2l-cpg: document RZ/G3S SoC
  clk: renesas: add minimal boot support for RZ/G3S SoC
  pinctrl: renesas: rzg2l: index all registers based on port offset
  pinctrl: renesas: rzg2l: adapt for different SD/PWPR register offsets
  pinctrl: renesas: rzg2l: adapt function number for RZ/G3S
  pinctrl: renesas: rzg2l: move ds and oi to SoC specific configuration
  pinctrl: renesas: rzg2l: add support for different ds values on
    different groups
  dt-bindings: pinctrl: renesas: set additionalProperties: false
  dt-bindings: pinctrl: renesas: document RZ/G3S SoC
  pinctrl: renesas: rzg2l: add support for RZ/G3S SoC
  arm64: dts: renesas: add initial DTSI for RZ/G3S SoC
  dt-bindings: arm: renesas: document RZ/G3S SMARC SoM
  arm64: dts: renesas: rzg3l-smarc-som: add initial support for RZ/G3S
    SMARC SoM
  arm64: dts: renesas: rzg3s-smarc: add initial device tree for RZ SMARC
    Carrier-II Board
  dt-bindings: arm: renesas: document SMARC Carrier-II EVK
  arm64: dts: renesas: r9a08g045s33-smarc: add initial device tree for
    RZ/G3S SMARC EVK board
  arm64: defconfig: enable RZ/G3S (R9A08G045) SoC

 .../bindings/clock/renesas,rzg2l-cpg.yaml     |   1 +
 .../pinctrl/renesas,rzg2l-pinctrl.yaml        |  23 +-
 .../bindings/serial/renesas,scif.yaml         |   1 +
 .../bindings/soc/renesas/renesas.yaml         |  13 +
 arch/arm64/boot/dts/renesas/Makefile          |   2 +
 arch/arm64/boot/dts/renesas/r9a08g045.dtsi    | 139 ++++
 .../boot/dts/renesas/r9a08g045s33-smarc.dts   |  17 +
 arch/arm64/boot/dts/renesas/r9a08g045s33.dtsi |  14 +
 .../boot/dts/renesas/rzg3s-smarc-som.dtsi     | 142 ++++
 arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi  |  28 +
 arch/arm64/configs/defconfig                  |   1 +
 drivers/clk/renesas/Kconfig                   |   7 +-
 drivers/clk/renesas/Makefile                  |   1 +
 drivers/clk/renesas/r9a07g043-cpg.c           |  19 +-
 drivers/clk/renesas/r9a07g044-cpg.c           |  19 +-
 drivers/clk/renesas/r9a08g045-cpg.c           | 213 ++++++
 drivers/clk/renesas/rzg2l-cpg.c               | 478 ++++++++++--
 drivers/clk/renesas/rzg2l-cpg.h               |  33 +-
 drivers/pinctrl/renesas/pinctrl-rzg2l.c       | 705 ++++++++++++++----
 include/dt-bindings/clock/r9a08g045-cpg.h     | 242 ++++++
 20 files changed, 1860 insertions(+), 238 deletions(-)
 create mode 100644 arch/arm64/boot/dts/renesas/r9a08g045.dtsi
 create mode 100644 arch/arm64/boot/dts/renesas/r9a08g045s33-smarc.dts
 create mode 100644 arch/arm64/boot/dts/renesas/r9a08g045s33.dtsi
 create mode 100644 arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi
 create mode 100644 arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
 create mode 100644 drivers/clk/renesas/r9a08g045-cpg.c
 create mode 100644 include/dt-bindings/clock/r9a08g045-cpg.h