Hi,
Here are v4 patches for serial port generic PM. The scope has now expanded
a bit from the earlier attempts to get rid of pm_runtime_irq_safe() for
the 8250_omap driver. I've now picked up three patches from Andy's earlier
generic serial port PM series.
Regards,
Tony
Changes since v3:
- Pick three patches from Andy's earlier serial port PM series to handle
issues pointed out by Johan
Chganges since v2:
- Use locking instead of atomic_t as suggested by Greg
Changes since v1:
- Separated out line discipline patches, n_tty -EAGAIN change I still
need to retest
- Changed prep_tx() to more generic wakeup() as also flow control needs it
- Changed over to using wakeup() with device driver runtime PM instead
of write_room()
- Added runtime_suspended flag for drivers and generic serial layer PM
to use
Andy Shevchenko (3):
serial: core: Add support of runtime PM
serial: 8250_port: properly handle runtime PM in IRQ
serial: 8250_port: Remove calls to runtime PM
Tony Lindgren (4):
serial: core: Add wakeup() and start_pending_tx() for asynchronous
wake
serial: 8250: Implement wakeup for TX and use it for 8250_omap
serial: 8250_omap: Require a valid wakeirq for deeper idle states
serial: 8250_omap: Drop the use of pm_runtime_irq_safe()
Documentation/driver-api/serial/driver.rst | 9 +
drivers/tty/serial/8250/8250.h | 3 -
drivers/tty/serial/8250/8250_omap.c | 44 +++--
drivers/tty/serial/8250/8250_port.c | 151 ++++++++--------
drivers/tty/serial/serial_core.c | 199 +++++++++++++++++++--
include/linux/serial_core.h | 3 +
6 files changed, 305 insertions(+), 104 deletions(-)
--
2.33.1
