mirror-linux/drivers/tty
Tony Lindgren 852659fe83 serial: 8250_omap: Use force_suspend and resume for system suspend
[ Upstream commit 20a41a6261 ]

We should not rely on autosuspend timeout for system suspend. Instead,
let's use force_suspend and force_resume functions. Otherwise the serial
port controller device may not be idled on suspend.

As we are doing a register write on suspend to configure the serial port,
we still need to runtime PM resume the port on suspend.

While at it, let's switch to pm_runtime_resume_and_get() and check for
errors returned. And let's add the missing line break before return to the
suspend function while at it.

Fixes: 09d8b2bdbc ("serial: 8250: omap: Provide ability to enable/disable UART as wakeup source")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Dhruva Gole <d-gole@ti.com>
Message-ID: <20230614045922.4798-1-tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:21:56 +02:00
..
hvc hvc/xen: prevent concurrent accesses to the shared ring 2023-03-30 12:49:09 +02:00
ipwireless
serdev
serial serial: 8250_omap: Use force_suspend and resume for system suspend 2023-07-19 16:21:56 +02:00
vt vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF 2023-05-24 17:32:51 +01:00
Kconfig
Makefile
amiserial.c
ehv_bytechan.c
goldfish.c
mips_ejtag_fdc.c
moxa.c
mxser.c
n_gsm.c
n_hdlc.c
n_null.c
n_tty.c
nozomi.c
pty.c
rpmsg_tty.c
synclink_gt.c
sysrq.c
tty.h tty: Prevent writing chars during tcsetattr TCSADRAIN/FLUSH 2023-05-11 23:03:01 +09:00
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c tty: Prevent writing chars during tcsetattr TCSADRAIN/FLUSH 2023-05-11 23:03:01 +09:00
tty_ioctl.c tty: Prevent writing chars during tcsetattr TCSADRAIN/FLUSH 2023-05-11 23:03:01 +09:00
tty_jobctrl.c
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c
ttynull.c
vcc.c