* [PATCH v2 22/31] tty: staging/greybus: pass tty_driver flags to tty_alloc_driver()
[not found] <20250317070046.24386-1-jirislaby@kernel.org>
@ 2025-03-17 7:00 ` Jiri Slaby (SUSE)
2025-03-17 12:35 ` Alex Elder
2025-03-17 7:03 ` [PATCH v2 00/31] tty: cleanup no. 99 Jiri Slaby
1 sibling, 1 reply; 3+ messages in thread
From: Jiri Slaby (SUSE) @ 2025-03-17 7:00 UTC (permalink / raw)
To: gregkh
Cc: linux-serial, linux-kernel, Jiri Slaby (SUSE), Johan Hovold,
David Lin, Alex Elder, greybus-dev, linux-staging
tty_alloc_driver() is supposed to receive tty driver flags.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Acked-by: Johan Hovold <johan@kernel.org>
Cc: David Lin <dtwlin@gmail.com>
Cc: Alex Elder <elder@kernel.org>
Cc: greybus-dev@lists.linaro.org
Cc: linux-staging@lists.linux.dev
---
drivers/staging/greybus/uart.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c
index 8eab94cb06fa..308ed1ca9947 100644
--- a/drivers/staging/greybus/uart.c
+++ b/drivers/staging/greybus/uart.c
@@ -948,7 +948,8 @@ static int gb_tty_init(void)
{
int retval = 0;
- gb_tty_driver = tty_alloc_driver(GB_NUM_MINORS, 0);
+ gb_tty_driver = tty_alloc_driver(GB_NUM_MINORS, TTY_DRIVER_REAL_RAW |
+ TTY_DRIVER_DYNAMIC_DEV);
if (IS_ERR(gb_tty_driver)) {
pr_err("Can not allocate tty driver\n");
retval = -ENOMEM;
@@ -961,7 +962,6 @@ static int gb_tty_init(void)
gb_tty_driver->minor_start = 0;
gb_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
gb_tty_driver->subtype = SERIAL_TYPE_NORMAL;
- gb_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
gb_tty_driver->init_termios = tty_std_termios;
gb_tty_driver->init_termios.c_cflag = B9600 | CS8 |
CREAD | HUPCL | CLOCAL;
--
2.49.0
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH v2 00/31] tty: cleanup no. 99
[not found] <20250317070046.24386-1-jirislaby@kernel.org>
2025-03-17 7:00 ` [PATCH v2 22/31] tty: staging/greybus: pass tty_driver flags to tty_alloc_driver() Jiri Slaby (SUSE)
@ 2025-03-17 7:03 ` Jiri Slaby
1 sibling, 0 replies; 3+ messages in thread
From: Jiri Slaby @ 2025-03-17 7:03 UTC (permalink / raw)
To: gregkh
Cc: linux-serial, linux-kernel, Alex Elder, Andrew Lunn,
Andy Shevchenko, David Lin, David S. Miller, Eric Dumazet,
greybus-dev, Ilpo Järvinen, Jakub Kicinski, Johan Hovold,
linux-alpha, linux-mmc, linux-staging, Matt Turner, netdev,
Paolo Abeni, Richard Henderson, Rob Herring, sparclinux,
Ulf Hansson
Cc (sorry):
Alex Elder <elder@kernel.org>
Andrew Lunn <andrew+netdev@lunn.ch>
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
David Lin <dtwlin@gmail.com>
"David S. Miller" <davem@davemloft.net>
Eric Dumazet <edumazet@google.com>
greybus-dev@lists.linaro.org
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Jakub Kicinski <kuba@kernel.org>
Johan Hovold <johan@kernel.org>
linux-alpha@vger.kernel.org
linux-mmc@vger.kernel.org
linux-staging@lists.linux.dev
Matt Turner <mattst88@gmail.com>
netdev@vger.kernel.org
Paolo Abeni <pabeni@redhat.com>
Richard Henderson <richard.henderson@linaro.org>
Rob Herring <robh@kernel.org>
sparclinux@vger.kernel.org
Ulf Hansson <ulf.hansson@linaro.org>
On 17. 03. 25, 8:00, Jiri Slaby (SUSE) wrote:
> Hi,
>
> this is (again) a series of cleanup in tty. I am trying to rework
> tty+serial to avoid limitations of devices (so called NR_UART or
> tty_alloc_driver()'s first parameter). And the below popped up while
> crawling through the code. So this is only a prep cleanup.
>
> * many tty flags are now enums
> * many functions were improved for readability
> * quite a few unused or old code dropped
>
> In particular, the runtime behaviour of the kernel before and after the
> changes is supposed to be bug to bug compatible (except moxa's ioctl
> and ISA evils dropped). That is, noone should notice.
>
> [v2]
> * use serial_port_in/out() helpers in 26/30 (and not use serial_in/out())
> * the last patch is new
>
> Jiri Slaby (SUSE) (31):
> tty: convert "TTY Struct Flags" to an enum
> tty: audit: do not use N_TTY_BUF_SIZE
> tty: caif: do not use N_TTY_BUF_SIZE
> tty: move N_TTY_BUF_SIZE to n_tty
> tty: n_tty: use uint for space returned by tty_write_room()
> tty: n_tty: simplify process_output()
> tty: n_tty: clean up process_output_block()
> tty: n_tty: drop n_tty_trace()
> tty: n_tty: extract n_tty_continue_cookie() from n_tty_read()
> tty: n_tty: extract n_tty_wait_for_input()
> tty: n_tty: move more_to_be_read to the end of n_tty_read()
> tty: tty_driver: move TTY macros to the top
> tty: tty_driver: convert "TTY Driver Flags" to an enum
> tty: tty_driver: document both {,__}tty_alloc_driver() properly
> tty: tty_driver: introduce TTY driver sub/types enums
> tty: serdev: drop serdev_controller_ops::write_room()
> tty: mmc: sdio: use bool for cts and remove parentheses
> tty: moxa: drop version dump to logs
> tty: moxa: drop ISA support
> tty: moxa: carve out special ioctls and extra tty_port
> tty: srmcons: fix retval from srmcons_init()
> tty: staging/greybus: pass tty_driver flags to tty_alloc_driver()
> tty: sunsu: drop serial_{in,out}p()
> tty: sunsu: remove unused serial_icr_read()
> serial: remove redundant tty_port_link_device()
> serial: pass struct uart_state to uart_line_info()
> serial: 8250: use serial_port_in/out() helpers
> serial: 8250_rsa: simplify rsa8250_{request/release}_resource()
> serial: 8250_port: do not use goto for UPQ_NO_TXEN_TEST code flow
> serial: 8250_port: simplify serial8250_request_std_resource()
> serial: switch change_irq and change_port to bool in uart_set_info()
>
> Documentation/driver-api/tty/tty_driver.rst | 4 +-
> Documentation/driver-api/tty/tty_struct.rst | 2 +-
> arch/alpha/kernel/srmcons.c | 62 ++---
> drivers/mmc/core/sdio_uart.c | 2 +-
> drivers/net/caif/caif_serial.c | 2 +-
> drivers/staging/greybus/uart.c | 4 +-
> drivers/tty/Kconfig | 2 +-
> drivers/tty/moxa.c | 251 +-------------------
> drivers/tty/n_tty.c | 212 ++++++++---------
> drivers/tty/serdev/core.c | 11 -
> drivers/tty/serdev/serdev-ttyport.c | 9 -
> drivers/tty/serial/8250/8250_dw.c | 16 +-
> drivers/tty/serial/8250/8250_fsl.c | 8 +-
> drivers/tty/serial/8250/8250_omap.c | 2 +-
> drivers/tty/serial/8250/8250_port.c | 59 ++---
> drivers/tty/serial/8250/8250_rsa.c | 21 +-
> drivers/tty/serial/serial_core.c | 10 +-
> drivers/tty/serial/sunsu.c | 178 ++++++--------
> drivers/tty/tty_audit.c | 10 +-
> drivers/tty/tty_io.c | 8 +-
> include/linux/serdev.h | 6 -
> include/linux/tty.h | 53 +++--
> include/linux/tty_driver.h | 180 +++++++-------
> 23 files changed, 412 insertions(+), 700 deletions(-)
>
--
js
suse labs
^ permalink raw reply [flat|nested] 3+ messages in thread