drivers/gpu/drm/bridge/ti-sn65dsi86.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/bridge/ti-sn65dsi86.c

Extension

.c

Size

63944 bytes

Lines

2192

Domain

Driver Families

Bucket

drivers/gpu

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/atomic.h
• linux/auxiliary_bus.h
• linux/bitfield.h
• linux/bits.h
• linux/clk.h
• linux/debugfs.h
• linux/gpio/consumer.h
• linux/gpio/driver.h
• linux/i2c.h
• linux/iopoll.h
• linux/module.h
• linux/of_graph.h
• linux/pm_runtime.h
• linux/pwm.h
• linux/regmap.h
• linux/regulator/consumer.h
• linux/unaligned.h
• drm/display/drm_dp_aux_bus.h
• drm/display/drm_dp_helper.h
• drm/drm_atomic.h
• drm/drm_atomic_helper.h
• drm/drm_bridge.h
• drm/drm_bridge_connector.h
• drm/drm_edid.h
• drm/drm_mipi_dsi.h
• drm/drm_of.h
• drm/drm_print.h
• drm/drm_probe_helper.h

Detected Declarations

• struct ti_sn65dsi86
• function ti_sn65dsi86_read_u8
• function ti_sn65dsi86_read_u16
• function ti_sn65dsi86_write_u16
• function get_new_adjusted_display_mode
• function ti_sn_bridge_get_dsi_freq
• function ti_sn_bridge_set_refclk_freq
• function ti_sn65dsi86_enable_comms
• function ti_sn65dsi86_disable_comms
• function ti_sn65dsi86_resume
• function ti_sn65dsi86_suspend
• function status_show
• function Devices
• function ti_sn_aux_transfer
• function pre_enable
• function ti_sn_aux_wait_hpd_asserted
• function ti_sn_aux_probe
• function ti_sn_attach_host
• function ti_sn_bridge_attach
• function ti_sn_bridge_detach
• function ti_sn_bridge_mode_valid
• function ti_sn_bridge_atomic_disable
• function ti_sn_bridge_set_dsi_rate
• function ti_sn_bridge_get_bpp
• function ti_sn_bridge_calc_min_dp_rate_idx
• function ti_sn_bridge_read_valid_rates
• function ti_sn_bridge_set_video_timings
• function ti_sn_get_max_lanes
• function ti_sn_link_training
• function ti_sn_bridge_atomic_enable
• function ti_sn_bridge_atomic_pre_enable
• function ti_sn_bridge_atomic_post_disable
• function ti_sn_bridge_detect
• function ti_sn65dsi86_debugfs_init
• function ti_sn_bridge_hpd_enable
• function ti_sn_bridge_hpd_disable
• function ti_sn_bridge_parse_lanes
• function ti_sn_bridge_parse_dsi_host
• function ti_sn_bridge_interrupt
• function ti_sn_bridge_probe
• function ti_sn_bridge_remove
• function ti_sn_pwm_pin_request
• function ti_sn_pwm_pin_release
• function ti_sn_pwm_request
• function ti_sn_pwm_free
• function ti_sn_pwm_apply
• function ti_sn_pwm_get_state
• function ti_sn_pwm_probe

Annotated Snippet

module_init(ti_sn65dsi86_init);

static void __exit ti_sn65dsi86_exit(void)
{
	auxiliary_driver_unregister(&ti_sn_bridge_driver);
	auxiliary_driver_unregister(&ti_sn_aux_driver);
	ti_sn_pwm_unregister();
	ti_sn_gpio_unregister();
	i2c_del_driver(&ti_sn65dsi86_driver);
}
module_exit(ti_sn65dsi86_exit);

MODULE_AUTHOR("Sandeep Panda <spanda@codeaurora.org>");
MODULE_DESCRIPTION("sn65dsi86 DSI to eDP bridge driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/atomic.h`, `linux/auxiliary_bus.h`, `linux/bitfield.h`, `linux/bits.h`, `linux/clk.h`, `linux/debugfs.h`, `linux/gpio/consumer.h`, `linux/gpio/driver.h`.
• Detected declarations: `struct ti_sn65dsi86`, `function ti_sn65dsi86_read_u8`, `function ti_sn65dsi86_read_u16`, `function ti_sn65dsi86_write_u16`, `function get_new_adjusted_display_mode`, `function ti_sn_bridge_get_dsi_freq`, `function ti_sn_bridge_set_refclk_freq`, `function ti_sn65dsi86_enable_comms`, `function ti_sn65dsi86_disable_comms`, `function ti_sn65dsi86_resume`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.