drivers/pinctrl/renesas/pinctrl-rzg2l.c

File Facts

System

Linux kernel

Corpus path

drivers/pinctrl/renesas/pinctrl-rzg2l.c

Extension

.c

Size

138382 bytes

Lines

4057

Domain

Driver Families

Bucket

drivers/pinctrl

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/bitfield.h
• linux/bitops.h
• linux/clk.h
• linux/gpio/driver.h
• linux/interrupt.h
• linux/io.h
• linux/mfd/syscon.h
• linux/module.h
• linux/mutex.h
• linux/of.h
• linux/of_irq.h
• linux/platform_device.h
• linux/property.h
• linux/regmap.h
• linux/seq_file.h
• linux/spinlock.h
• linux/pinctrl/consumer.h
• linux/pinctrl/pinconf-generic.h
• linux/pinctrl/pinconf.h
• linux/pinctrl/pinctrl.h
• linux/pinctrl/pinmux.h
• dt-bindings/pinctrl/renesas,r9a08g046-pinctrl.h
• dt-bindings/pinctrl/renesas,r9a09g047-pinctrl.h
• dt-bindings/pinctrl/renesas,r9a09g057-pinctrl.h
• dt-bindings/pinctrl/rzg2l-pinctrl.h
• ../core.h
• ../pinconf.h
• ../pinmux.h

Detected Declarations

• struct rzg2l_register_offsets
• struct rzg2l_hwcfg
• struct rzg2l_dedicated_configs
• struct rzg2l_pinctrl
• struct rzg2l_pinctrl_data
• struct rzg2l_pinctrl_pin_settings
• struct rzg2l_pinctrl_reg_cache
• struct rzg2l_pinctrl
• enum rzg2l_iolh_index
• function rzg2l_pinctrl_get_variable_pin_cfg
• function rzg2l_pmc_writeb
• function rzv2h_pmc_writeb
• function rzg2l_validate_pin
• function rzg2l_pinctrl_set_clone_mode
• function rzg2l_pinctrl_set_pfc_mode
• function rzg2l_pinctrl_set_mux
• function rzg2l_map_add_config
• function rzg2l_dt_subnode_to_map
• function of_property_for_each_string
• function rzg2l_dt_free_map
• function rzg2l_dt_node_to_map
• function for_each_child_of_node_scoped
• function rzg2l_read_pin_config
• function rzg2l_rmw_pin_config
• function rzg2l_caps_to_pwr_reg
• function rzg2l_get_power_source
• function rzg2l_set_power_source
• function rzg2l_ps_is_supported
• function rzg2l_ps_to_iolh_idx
• function rzg2l_iolh_val_to_ua
• function rzg2l_iolh_ua_to_val
• function rzg2l_ds_is_supported
• function rzg2l_pin_to_oen_bit
• function rzg2l_read_oen
• function rzg2l_oen_write_with_pwpr
• function rzg2l_write_oen
• function rzg3s_pin_to_oen_bit
• function rzg2l_hw_to_bias_param
• function rzg2l_bias_param_to_hw
• function rzv2h_hw_to_bias_param
• function rzv2h_bias_param_to_hw
• function rzg2l_pin_names_to_oen_bit
• function rzv2h_pin_to_oen_bit
• function rzg3e_pin_to_oen_bit
• function rzg2l_pinctrl_pinconf_get
• function rzg2l_pinctrl_pinconf_set
• function rzg2l_pinctrl_pinconf_group_set
• function rzg2l_pinctrl_pinconf_group_get

Annotated Snippet

core_initcall(rzg2l_pinctrl_init);

MODULE_AUTHOR("Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>");
MODULE_DESCRIPTION("Pin and gpio controller driver for RZ/G2L family");

Annotation

• Immediate include surface: `linux/bitfield.h`, `linux/bitops.h`, `linux/clk.h`, `linux/gpio/driver.h`, `linux/interrupt.h`, `linux/io.h`, `linux/mfd/syscon.h`, `linux/module.h`.
• Detected declarations: `struct rzg2l_register_offsets`, `struct rzg2l_hwcfg`, `struct rzg2l_dedicated_configs`, `struct rzg2l_pinctrl`, `struct rzg2l_pinctrl_data`, `struct rzg2l_pinctrl_pin_settings`, `struct rzg2l_pinctrl_reg_cache`, `struct rzg2l_pinctrl`, `enum rzg2l_iolh_index`, `function rzg2l_pinctrl_get_variable_pin_cfg`.
• Atlas domain: Driver Families / drivers/pinctrl.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.