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author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-03-21 12:44:10 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-03-21 12:44:10 -0700 |
commit | 3bcb0bf65c2b8d67dbe7509da8d1461ee4445db7 (patch) | |
tree | ed0506aa0429318deacaf08cbec74ccf66a441c3 /drivers/tty/serial/bcm63xx_uart.c | |
parent | e09bf86f3d53ecf4da61163d88036c4c16419d70 (diff) | |
parent | d6c0d892b44cd16e0421909cf7f2883b9e625e4a (diff) | |
download | linux-3bcb0bf65c2b8d67dbe7509da8d1461ee4445db7.tar.gz |
Merge tag 'tty-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver updates from Greg KH:
"Here is the big set of TTY/Serial driver updates and cleanups for
6.9-rc1. Included in here are:
- more tty cleanups from Jiri
- loads of 8250 driver cleanups from Andy
- max310x driver updates
- samsung serial driver updates
- uart_prepare_sysrq_char() updates for many drivers
- platform driver remove callback void cleanups
- stm32 driver updates
- other small tty/serial driver updates
All of these have been in linux-next for a long time with no reported
issues"
* tag 'tty-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits)
dt-bindings: serial: stm32: add power-domains property
serial: 8250_dw: Replace ACPI device check by a quirk
serial: Lock console when calling into driver before registration
serial: 8250_uniphier: Switch to use uart_read_port_properties()
serial: 8250_tegra: Switch to use uart_read_port_properties()
serial: 8250_pxa: Switch to use uart_read_port_properties()
serial: 8250_omap: Switch to use uart_read_port_properties()
serial: 8250_of: Switch to use uart_read_port_properties()
serial: 8250_lpc18xx: Switch to use uart_read_port_properties()
serial: 8250_ingenic: Switch to use uart_read_port_properties()
serial: 8250_dw: Switch to use uart_read_port_properties()
serial: 8250_bcm7271: Switch to use uart_read_port_properties()
serial: 8250_bcm2835aux: Switch to use uart_read_port_properties()
serial: 8250_aspeed_vuart: Switch to use uart_read_port_properties()
serial: port: Introduce a common helper to read properties
serial: core: Add UPIO_UNKNOWN constant for unknown port type
serial: core: Move struct uart_port::quirks closer to possible values
serial: sh-sci: Call sci_serial_{in,out}() directly
serial: core: only stop transmit when HW fifo is empty
serial: pch: Use uart_prepare_sysrq_char().
...
Diffstat (limited to 'drivers/tty/serial/bcm63xx_uart.c')
-rw-r--r-- | drivers/tty/serial/bcm63xx_uart.c | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c index a3cefa153456df..34801a6f300b68 100644 --- a/drivers/tty/serial/bcm63xx_uart.c +++ b/drivers/tty/serial/bcm63xx_uart.c @@ -285,10 +285,9 @@ static void bcm_uart_do_rx(struct uart_port *port) flag = TTY_PARITY; } - if (uart_handle_sysrq_char(port, c)) + if (uart_prepare_sysrq_char(port, c)) continue; - if ((cstat & port->ignore_status_mask) == 0) tty_insert_flip_char(tty_port, c, flag); @@ -353,7 +352,7 @@ static irqreturn_t bcm_uart_interrupt(int irq, void *dev_id) estat & UART_EXTINP_DCD_MASK); } - uart_port_unlock(port); + uart_unlock_and_check_sysrq(port); return IRQ_HANDLED; } @@ -703,20 +702,14 @@ static void bcm_console_write(struct console *co, const char *s, { struct uart_port *port; unsigned long flags; - int locked; + int locked = 1; port = &ports[co->index]; - local_irq_save(flags); - if (port->sysrq) { - /* bcm_uart_interrupt() already took the lock */ - locked = 0; - } else if (oops_in_progress) { - locked = uart_port_trylock(port); - } else { - uart_port_lock(port); - locked = 1; - } + if (oops_in_progress) + locked = uart_port_trylock_irqsave(port, &flags); + else + uart_port_lock_irqsave(port, &flags); /* call helper to deal with \r\n */ uart_console_write(port, s, count, bcm_console_putchar); @@ -725,8 +718,7 @@ static void bcm_console_write(struct console *co, const char *s, wait_for_xmitr(port); if (locked) - uart_port_unlock(port); - local_irq_restore(flags); + uart_port_unlock_irqrestore(port, flags); } /* |