[PATCH v2 00/14] Add Microchip ZL3073x support (part 1)

Ivan Vecera
2025-04-09T14:43:04Z

Add support for Microchip Azurite DPLL/PTP/SyncE chip family that
provides DPLL and PTP functionality. This series bring first part
that adds the common MFD driver that provides an access to the bus
that can be either I2C or SPI.

The next series will bring the DPLL driver that will covers DPLL
functionality. And another ones will bring PTP driver and flashing
capability via devlink.

Testing was done by myself and by Prathosh Satish on Microchip EDS2
development board with ZL30732 DPLL chip connected over I2C bus.

Patch breakdown
===============
Patch 1 - Common DT schema for DPLL device and pin
Patch 3 - Basic support for I2C, SPI and regmap
Patch 4 - Devlink registration
Patches 5-6 - Helpers for accessing device registers
Patches 7-8 - Component versions reporting via devlink dev info
Patches 9-10 - Helpers for accessing register mailboxes
Patch 11 - Clock ID generation for DPLL driver
Patch 12 - Export strnchrnul function for modules
(used by next patch)
Patch 13 - Support for MFG config initialization file
Patch 14 - Fetch invariant register values used by DPLL and later by
PTP driver

Ivan Vecera (14):
dt-bindings: dpll: Add device tree bindings for DPLL device and pin
dt-bindings: dpll: Add support for Microchip Azurite chip family
mfd: Add Microchip ZL3073x support
mfd: zl3073x: Register itself as devlink device
mfd: zl3073x: Add register access helpers
mfd: zl3073x: Add macros for device registers access
mfd: zl3073x: Add components versions register defs
mfd: zl3073x: Implement devlink device info
mfd: zl3073x: Add macro to wait for register value bits to be cleared
mfd: zl3073x: Add functions to work with register mailboxes
mfd: zl3073x: Add clock_id field
lib: Allow modules to use strnchrnul
mfd: zl3073x: Load mfg file into HW if it is present
mfd: zl3073x: Fetch invariants during probe

.../devicetree/bindings/dpll/dpll-device.yaml | 76 ++
.../devicetree/bindings/dpll/dpll-pin.yaml | 44 +
.../bindings/dpll/microchip,zl3073x-i2c.yaml | 74 ++
.../bindings/dpll/microchip,zl3073x-spi.yaml | 77 ++
MAINTAINERS | 11 +
drivers/mfd/Kconfig | 32 +
drivers/mfd/Makefile | 5 +
drivers/mfd/zl3073x-core.c | 883 ++++++++++++++++++
drivers/mfd/zl3073x-i2c.c | 59 ++
drivers/mfd/zl3073x-spi.c | 59 ++
drivers/mfd/zl3073x.h | 14 +
include/linux/mfd/zl3073x.h | 363 +++++++
lib/string.c | 1 +
13 files changed, 1698 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dpll/dpll-device.yaml
create mode 100644 Documentation/devicetree/bindings/dpll/dpll-pin.yaml
create mode 100644 Documentation/devicetree/bindings/dpll/microchip,zl3073x-i2c.yaml
create mode 100644 Documentation/devicetree/bindings/dpll/microchip,zl3073x-spi.yaml
create mode 100644 drivers/mfd/zl3073x-core.c
create mode 100644 drivers/mfd/zl3073x-i2c.c
create mode 100644 drivers/mfd/zl3073x-spi.c
create mode 100644 drivers/mfd/zl3073x.h
create mode 100644 include/linux/mfd/zl3073x.h

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2.48.1