From: Tony Lindgren <tony@atomide.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andy Shevchenko <andriy.shevchenko@intel.com>,
Jiri Slaby <jirislaby@kernel.org>,
Johan Hovold <johan@kernel.org>,
Vignesh Raghavendra <vigneshr@ti.com>,
linux-serial@vger.kernel.org, linux-omap@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/6] Get rid of pm_runtime_irq_safe() for 8250_omap
Date: Tue, 21 Sep 2021 13:33:40 +0300 [thread overview]
Message-ID: <20210921103346.64824-1-tony@atomide.com> (raw)
Hi,
Here are patches to get rid of pm_runtime_irq_safe() for the 8250_omap
driver.
For removing the pm_runtime_irq_safe() usage, serial TX is the last
remaining issue. We deal with TX by waking up the port and returning 0
bytes written from write_room() and write() if the port is not available
because of PM runtime autoidle.
This series also removes the dependency to Andy's pending generic serial
layer PM runtime patches, and hopefully makes that work a bit easier :)
Regards,
Tony
Tony Lindgren (6):
n_tty: Start making use of -EAGAIN returned from
process_output_block()
tty: n_gsm: Don't ignore write return value in gsmld_output()
serial: core: Add new prep_tx for power management
serial: 8250: Implement prep_tx for power management
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/n_gsm.c | 5 ++-
drivers/tty/n_tty.c | 8 +++--
drivers/tty/serial/8250/8250_omap.c | 36 +++++++++++++++-------
drivers/tty/serial/8250/8250_port.c | 24 +++++++++++++++
drivers/tty/serial/serial_core.c | 23 ++++++++++++++
include/linux/serial_core.h | 1 +
7 files changed, 90 insertions(+), 16 deletions(-)
--
2.33.0
next reply other threads:[~2021-09-21 10:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-21 10:33 Tony Lindgren [this message]
2021-09-21 10:33 ` [PATCH 1/6] n_tty: Start making use of -EAGAIN returned from process_output_block() Tony Lindgren
2021-09-21 11:58 ` Andy Shevchenko
2021-09-21 10:33 ` [PATCH 2/6] tty: n_gsm: Don't ignore write return value in gsmld_output() Tony Lindgren
2021-09-21 10:33 ` [PATCH 3/6] serial: core: Add new prep_tx for power management Tony Lindgren
2021-09-23 12:45 ` Johan Hovold
2021-09-23 15:02 ` Tony Lindgren
2021-09-24 14:37 ` Johan Hovold
2021-09-24 15:09 ` Tony Lindgren
2021-09-27 14:05 ` Johan Hovold
2021-09-21 10:33 ` [PATCH 4/6] serial: 8250: Implement " Tony Lindgren
2021-09-23 12:49 ` Johan Hovold
2021-09-23 15:05 ` Tony Lindgren
2021-09-24 14:44 ` Johan Hovold
2021-09-24 15:16 ` Tony Lindgren
2021-09-21 10:33 ` [PATCH 5/6] serial: 8250_omap: Require a valid wakeirq for deeper idle states Tony Lindgren
2021-09-21 10:33 ` [PATCH 6/6] serial: 8250_omap: Drop the use of pm_runtime_irq_safe() Tony Lindgren
2021-09-21 12:03 ` [PATCH 0/6] Get rid of pm_runtime_irq_safe() for 8250_omap Andy Shevchenko
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