From: Parshuram Thombare <firstname.lastname@example.org> To: <email@example.com>, <firstname.lastname@example.org>, <email@example.com> Cc: firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, Parshuram Thombare <firstname.lastname@example.org> Subject: [RESEND PATCH v9 0/7] I3C mastership handover support Date: Sun, 29 Nov 2020 15:19:14 +0100 [thread overview] Message-ID: <email@example.com> (raw) Main changes between v8 and v9 are: - Fix NULL dereference issue in current_master_show when cat'ing sysfs key current_master for secondary master before primary master gets initialized. Main changes between v7 and v8 are: - Document format changed from table to DOT diagram - Appropriate names for few functions - Moved mastership request process entirely to the driver - Reuse of i3c_master_add_i3c_dev_locked in core defslvs processing Main changes between v6 and v7 are: - Added separate functions for main and secondary master initialization - Secondary master initialization don't wait for DEFSLSVS. - Change to use I2C device information from DTS, and corresponding changes in controller driver and I3C core DEFSLVS processing to ignore I2C devices received in DEFSLVS - Reverted bus_init split - Fixed formatting issues in document Main changes between v5 and v6 are: - Moved populate_bus() hook to master subsystem code. - For secondary master initialization i3c_master_register spawan separate threads, as secondary master may have to wait for DEFSLVS and bus mastership. - Populate bus info is based on DEFSLVS data and take care of hot plugged / unplugged I3C devices. - Split bus_init into bus_init and master_set_info callbacks - Moved mastership aquire and handover to separate state machines. - Added DEFSLVS processing code. - Moved back all locks in side the subsystem code. - Secondary mastership support to Cadence I3C master controller driver - Sysfs key 'i3c_acquire_bus' to acauire bus. - NULL check for pool pointer in i3c_generic_ibi_free_pool. Main changes between v4 and v5 are: - Add populate_bus() hook - Split i3c_master_register into init and register pair - Split device information retrieval, let add partialy discovered devices - Make i3c_master_set_info private - Add separate function to register secondary master - Reworked secondary master register in CDNS driver - Export i3c_bus_set_mode Main changes between v3 and v4 are: - Reworked acquire bus ownership - Refactored the code Main changes between v2 and v3 are: - Added DEFSLVS devices are registered from master driver - Reworked I2C registering on secondary master side - Reworked Mastership event is enabled/disabled globally (for all devices) Main changes between initial version and v2 are: - Reworked devices registration on secondary master side - Reworked mastership event disabling/enabling - Reworked bus locking during mastership takeover process - Added DEFSLVS devices registration during initialization - Fixed style issues Parshuram Thombare (7): i3c: master: master initialization flow document i3c: master: use i3c_master_register only for main master i3c: master: add i3c_secondary_master_register i3c: master: add mastership handover support i3c: master: add defslvs processing i3c: master: sysfs key for acquire bus i3c: master: mastership handover, defslvs processing in cdns controller driver Documentation/driver-api/i3c/index.rst | 1 + .../driver-api/i3c/master-initialization-flow.rst | 187 ++++++++ drivers/i3c/master.c | 497 ++++++++++++++++++-- drivers/i3c/master/dw-i3c-master.c | 4 +- drivers/i3c/master/i3c-master-cdns.c | 329 ++++++++++++- include/linux/i3c/master.h | 23 +- 6 files changed, 968 insertions(+), 73 deletions(-) create mode 100644 Documentation/driver-api/i3c/master-initialization-flow.rst -- linux-i3c mailing list firstname.lastname@example.org http://lists.infradead.org/mailman/listinfo/linux-i3c
next reply other threads:[~2020-11-29 14:19 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-11-29 14:19 Parshuram Thombare [this message] 2020-11-29 14:20 ` [PATCH v9 1/7] i3c: master: master initialization flow document Parshuram Thombare 2020-11-29 14:22 ` [PATCH v9 2/7] i3c: master: use i3c_master_register only for main master Parshuram Thombare 2020-11-29 17:12 ` kernel test robot 2020-11-29 14:22 ` [PATCH v9 3/7] i3c: master: add i3c_secondary_master_register Parshuram Thombare 2020-11-29 14:23 ` [PATCH v9 4/7] i3c: master: add mastership handover support Parshuram Thombare 2020-11-29 14:23 ` [PATCH v9 5/7] i3c: master: add defslvs processing Parshuram Thombare 2020-11-29 14:23 ` [PATCH v9 6/7] i3c: master: sysfs key for acquire bus Parshuram Thombare 2020-11-29 14:24 ` [PATCH v9 7/7] i3c: master: mastership handover, defslvs processing in cdns controller driver Parshuram Thombare 2021-03-04 9:42 ` [RESEND PATCH v9 0/7] I3C mastership handover support Parshuram Raju Thombare
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