[v2,00/13] OMAP mailbox FIFO removal

Message

Andrew Davis April 10, 2024, 1:59 p.m. UTC

Hello all,

Core of this series is the last patch removing the message FIFO
from OMAP mailbox. This hurts our real-time performance. It was a
legacy leftover from before the common mailbox framework anyway.

The rest of the patches are cleanups found along the way.

Thanks,
Andrew

Changes for v2:
 - Use threaded irq as suggested by Hari and to
     fix possible "scheduling while atomic" issue
 - Use oneshot irq as we do not want to enable the
     irq again until we clear our the messages
 - Rebase on v6.9-rc3

Andrew Davis (13):
  mailbox: omap: Remove unused omap_mbox_{enable,disable}_irq()
    functions
  mailbox: omap: Remove unused omap_mbox_request_channel() function
  mailbox: omap: Move omap_mbox_irq_t into driver
  mailbox: omap: Move fifo size check to point of use
  mailbox: omap: Remove unneeded header omap-mailbox.h
  mailbox: omap: Remove device class
  mailbox: omap: Use devm_pm_runtime_enable() helper
  mailbox: omap: Merge mailbox child node setup loops
  mailbox: omap: Use function local struct mbox_controller
  mailbox: omap: Use mbox_controller channel list directly
  mailbox: omap: Remove mbox_chan_to_omap_mbox()
  mailbox: omap: Reverse FIFO busy check logic
  mailbox: omap: Remove kernel FIFO message queuing

 drivers/mailbox/Kconfig        |   9 -
 drivers/mailbox/omap-mailbox.c | 519 +++++++--------------------------
 include/linux/omap-mailbox.h   |  13 -
 3 files changed, 108 insertions(+), 433 deletions(-)