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Merge tag 'i3c/for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

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Pull i3c updates from Alexandre Belloni:
 "This adds support for the I3C HCI controller of the AMD SoC which as
  expected requires quirks. Also fixes for the other drivers, including
  rate selection fixes for svc.

  Core:
   - allow adjusting first broadcast address speed

  Drivers:
   - cdns: few fixes
   - mipi-i3c-hci: Add AMD SoC I3C controller support and quirks, fix
     get_i3c_mode
   - svc: adjust rates, fix race condition"

* tag 'i3c/for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: master: svc: Fix use after free vulnerability in svc_i3c_master Driver Due to Race Condition
  i3c: master: cdns: Fix use after free vulnerability in cdns_i3c_master Driver Due to Race Condition
  i3c: master: svc: adjust SDR according to i3c spec
  i3c: master: svc: use slow speed for first broadcast address
  i3c: master: support to adjust first broadcast address speed
  i3c/master: cmd_v1: Fix the rule for getting i3c mode
  i3c: master: cdns: fix module autoloading
  i3c: mipi-i3c-hci: Add a quirk to set Response buffer threshold
  i3c: mipi-i3c-hci: Add a quirk to set timing parameters
  i3c: mipi-i3c-hci: Relocate helper macros to HCI header file
  i3c: mipi-i3c-hci: Add a quirk to set PIO mode
  i3c: mipi-i3c-hci: Read HC_CONTROL_PIO_MODE only after i3c hci v1.1
  i3c: mipi-i3c-hci: Add AMDI5017 ACPI ID to the I3C Support List
This commit is contained in:
Linus Torvalds
2024-09-24 12:53:54 -07:00
parent ba0c0cb56f 6185072577
commit cd3d647729
9 changed files with 193 additions and 26 deletions
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16
include/linux/i3c/master.h
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@@ -277,6 +277,20 @@ enum i3c_bus_mode {
I3C_BUS_MODE_MIXED_SLOW,
};
/**
* enum i3c_open_drain_speed - I3C open-drain speed
* @I3C_OPEN_DRAIN_SLOW_SPEED: Slow open-drain speed for sending the first
* broadcast address. The first broadcast address at this speed
* will be visible to all devices on the I3C bus. I3C devices
* working in I2C mode will turn off their spike filter when
* switching into I3C mode.
* @I3C_OPEN_DRAIN_NORMAL_SPEED: Normal open-drain speed in I3C bus mode.
*/
enum i3c_open_drain_speed {
I3C_OPEN_DRAIN_SLOW_SPEED,
I3C_OPEN_DRAIN_NORMAL_SPEED,
};
/**
* enum i3c_addr_slot_status - I3C address slot status
* @I3C_ADDR_SLOT_FREE: address is free
@@ -436,6 +450,7 @@ struct i3c_bus {
* NULL.
* @enable_hotjoin: enable hot join event detect.
* @disable_hotjoin: disable hot join event detect.
* @set_speed: adjust I3C open drain mode timing.
*/
struct i3c_master_controller_ops {
int (*bus_init)(struct i3c_master_controller *master);
@@ -464,6 +479,7 @@ struct i3c_master_controller_ops {
struct i3c_ibi_slot *slot);
int (*enable_hotjoin)(struct i3c_master_controller *master);
int (*disable_hotjoin)(struct i3c_master_controller *master);
int (*set_speed)(struct i3c_master_controller *master, enum i3c_open_drain_speed speed);
};
/**