Hugo Villeneuve 7e3ca33752 serial: sc16is7xx: fix regression with GPIO configuration ... [ Upstream commit 0499942928 ] Commit 679875d1d8 ("sc16is7xx: Separate GPIOs from modem control lines") and commit 21144bab4f ("sc16is7xx: Handle modem status lines") changed the function of the GPIOs pins to act as modem control lines without any possibility of selecting GPIO function. As a consequence, applications that depends on GPIO lines configured by default as GPIO pins no longer work as expected. Also, the change to select modem control lines function was done only for channel A of dual UART variants (752/762). This was not documented in the log message. Allow to specify GPIO or modem control line function in the device tree, and for each of the ports (A or B). Do so by using the new device-tree property named "nxp,modem-control-line-ports" (property added in separate patch). When registering GPIO chip controller, mask-out GPIO pins declared as modem control lines according to this new DT property. Fixes: 679875d1d8 ("sc16is7xx: Separate GPIOs from modem control lines") Fixes: 21144bab4f ("sc16is7xx: Handle modem status lines") Cc: stable@vger.kernel.org Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Lech Perczak <lech.perczak@camlingroup.com> Tested-by: Lech Perczak <lech.perczak@camlingroup.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230807214556.540627-5-hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-09-13 09:48:44 +02:00
..
hvc
ipwireless
serdev
serial	serial: sc16is7xx: fix regression with GPIO configuration	2023-09-13 09:48:44 +02:00
vt	vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF	2023-05-13 20:01:13 +09:00
amiserial.c
ehv_bytechan.c
goldfish.c
Kconfig	TIOCSTI: Document CAP_SYS_ADMIN behaviour in Kconfig	2023-08-30 14:52:45 +02:00
Makefile
mips_ejtag_fdc.c
moxa.c
mxser.c
n_gsm.c	tty: n_gsm: fix the UAF caused by race condition in gsm_cleanup_mux	2023-08-23 17:32:38 +02:00
n_hdlc.c
n_null.c
n_tty.c	tty: fix hang on tty device with no_room set	2023-07-23 13:54:06 +02:00
nozomi.c
pty.c
rpmsg_tty.c
synclink_gt.c
sysrq.c
tty.h
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c	TIOCSTI: always enable for CAP_SYS_ADMIN	2023-08-03 10:26:03 +02:00
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c
ttynull.c
vcc.c