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linux/drivers/tty/serial
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Doug Brown 5208e7ced5 serial: 8250_pxa: Configure tx_loadsz to match FIFO IRQ level 
The FIFO is 64 bytes, but the FCR is configured to fire the TX interrupt
when the FIFO is half empty (bit 3 = 0). Thus, we should only write 32
bytes when a TX interrupt occurs.

This fixes a problem observed on the PXA168 that dropped a bunch of TX
bytes during large transmissions.

Fixes: ab28f51c77cd ("serial: rewrite pxa2xx-uart to use 8250_core")
Signed-off-by: Doug Brown <doug@schmorgal.com>
Link: https://lore.kernel.org/r/20240519191929.122202-1-doug@schmorgal.com
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-04 14:08:09 +02:00
..
8250
serial: 8250_pxa: Configure tx_loadsz to match FIFO IRQ level
2024-06-04 14:08:09 +02:00
jsm
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
21285.c
serial: 21285: Use port lock wrappers
2023-09-18 11:18:08 +02:00
altera_jtaguart.c
serial: altera_jtaguart: Convert to platform remove callback returning void
2023-11-23 19:12:30 +00:00
altera_uart.c
tty/serial: altera_uart: use more informative labels in /proc/interrupts
2024-01-04 16:20:51 +01:00
amba-pl010.c
serial: amba-pl010: Use port lock wrappers
2023-09-18 11:18:09 +02:00
amba-pl011.c
serial: amba-pl011: move variable into CONFIG_DMA_ENGINE conditional
2024-04-09 17:07:10 +02:00
apbuart.c
serial: apbuart: fix console prompt on qemu
2024-01-04 16:21:06 +01:00
apbuart.h
…
ar933x_uart.c
serial: ar933x: Remove unneeded static structure
2024-04-09 17:07:10 +02:00
arc_uart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
atmel_serial.c
tty: atmel_serial: use single DMA mapping for RX
2024-04-09 15:28:04 +02:00
atmel_serial.h
…
bcm63xx_uart.c
serial: bcm63xx: Use uart_prepare_sysrq_char().
2024-03-02 22:06:20 +01:00
clps711x.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
cpm_uart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
cpm_uart.h
serial: cpm_uart: Remove cpm_uart/ subdirectory
2023-08-04 15:08:30 +02:00
digicolor-usart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
dz.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
dz.h
…
earlycon-riscv-sbi.c
tty/serial: Add RISC-V SBI debug console based earlycon
2024-01-10 07:04:04 -08:00
earlycon-semihost.c
serial: Rename earlycon semihost driver
2023-01-19 14:58:19 +01:00
earlycon.c
earlycon: Let users set the clock frequency
2023-01-19 14:56:44 +01:00
esp32_acm.c
serial: esp32_acm: Add explicit platform_device.h include
2023-12-15 14:20:00 +01:00
esp32_uart.c
serial: esp32_uart: Use device_get_match_data()
2023-12-15 14:20:00 +01:00
fsl_linflexuart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
fsl_lpuart.c
tty: serial: fsl_lpuart: use dev_err_probe for clocks
2024-04-17 13:14:04 +02:00
icom.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
imx_earlycon.c
…
imx.c
serial: imx: Raise TX trigger level to 8
2024-05-10 11:49:19 +01:00
ip22zilog.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
ip22zilog.h
…
Kconfig
serial: sc16is7xx: split into core and I2C/SPI parts (core)
2024-04-11 14:08:08 +02:00
kgdb_nmi.c
tty: make tty_operations::write()'s count size_t
2023-08-11 21:12:46 +02:00
kgdboc.c
serial: kgdboc: Fix NMI-safety problems from keyboard reset code
2024-04-26 17:14:10 +01:00
lantiq.c
serial: lantiq: Convert to platform remove callback returning void
2023-11-23 19:12:32 +00:00
liteuart.c
serial: liteuart: Convert to platform remove callback returning void
2023-11-23 19:12:32 +00:00
lpc32xx_hs.c
serial: lpc32xx_hs: Use uart_prepare_sysrq_char() to handle sysrq.
2024-03-02 22:06:21 +01:00
ma35d1_serial.c
serial: ma35d1: Fix spelling mistake "ononsole" -> "console"
2023-12-15 14:23:30 +01:00
Makefile
serial: sc16is7xx: split into core and I2C/SPI parts (core)
2024-04-11 14:08:08 +02:00
max310x.c
tty: serial: max310x: convert to use maple tree register cache
2024-04-09 16:50:36 +02:00
max3100.c
serial: max3100: Convert to_max3100_port() to be static inline
2024-04-11 14:08:40 +02:00
mcf.c
drivers/tty/serial: Remove unused function early_mcf_setup
2024-03-02 21:52:35 +01:00
men_z135_uart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
meson_uart.c
serial: meson+qcom: don't advance the kfifo twice
2024-04-16 09:05:43 +02:00
milbeaut_usio.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
mpc52xx_uart.c
serial: mpc52xx: Convert to platform remove callback returning void
2023-11-23 19:12:32 +00:00
mps2-uart.c
serial: mps2-uart: Use port lock wrappers
2023-09-18 11:18:12 +02:00
msm_serial.c
serial: msm: check dma_map_sg() return value properly
2024-04-20 07:58:42 +02:00
mux.c
…
mvebu-uart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
mxs-auart.c
Merge 6.9-rc5 into tty-next
2024-04-23 13:24:45 +02:00
omap-serial.c
serial: omap: remove redundant assignment to variable tmout
2024-04-11 14:08:36 +02:00
owl-uart.c
serial: owl: Use uart_prepare_sysrq_char() to handle sysrq.
2024-03-02 22:06:21 +01:00
pch_uart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
pic32_uart.c
serial: pic32_uart: Replace of_gpio.h by proper one
2024-04-09 15:48:43 +02:00
pmac_zilog.c
Merge 6.9-rc5 into tty-next
2024-04-23 13:24:45 +02:00
pmac_zilog.h
…
pxa.c
serial: pxa: Use uart_prepare_sysrq_char().
2024-03-02 22:06:21 +01:00
qcom_geni_serial.c
serial: meson+qcom: don't advance the kfifo twice
2024-04-16 09:05:43 +02:00
rda-uart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
rp2.c
tty: rp2: remove unused rp2_uart_port::ignore_rx
2023-11-23 19:16:03 +00:00
sa1100.c
serial: sa1100: Convert to platform remove callback returning void
2023-11-23 19:12:33 +00:00
samsung_tty.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
sb1250-duart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
sc16is7xx_i2c.c
serial: sc16is7xx: split into core and I2C/SPI parts (sc16is7xx_regcfg)
2024-04-11 14:08:08 +02:00
sc16is7xx_spi.c
serial: sc16is7xx: split into core and I2C/SPI parts (sc16is7xx_regcfg)
2024-04-11 14:08:08 +02:00
sc16is7xx.c
TTY/Serial fixes for 6.10-rc1
2024-05-24 08:38:28 -07:00
sc16is7xx.h
serial: sc16is7xx: split into core and I2C/SPI parts (sc16is7xx_regcfg)
2024-04-11 14:08:08 +02:00
sccnxp.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
serial_base_bus.c
serial: core: Fix ifdef for serial base console functions
2024-04-13 12:44:03 +02:00
serial_base.h
Merge 6.9-rc5 into tty-next
2024-04-23 13:24:45 +02:00
serial_core.c
serial: Clear UPF_DEAD before calling tty_port_register_device_attr_serdev()
2024-05-10 11:49:23 +01:00
serial_ctrl.c
serial: core: Start managing serial controllers to enable runtime PM
2023-05-31 10:46:59 +01:00
serial_mctrl_gpio.c
serial: mctrl_gpio: Use port lock wrappers
2023-09-18 11:18:14 +02:00
serial_mctrl_gpio.h
…
serial_port.c
Merge 6.9-rc5 into tty-next
2024-04-23 13:24:45 +02:00
serial_txx9.c
serial: txx9: Add missing #include <asm/txx9/generic.h>
2024-01-27 19:05:39 -08:00
serial-tegra.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
sh-sci.c
serial: sh-sci: simplify locking when re-issuing RXDMA fails
2024-05-10 11:48:33 +01:00
sh-sci.h
tty: serial: sh-sci: Add support for tx end interrupt handling
2023-04-20 13:47:33 +02:00
sifive.c
serial: sifive: Remove 0 from fu540-c000-uart0 binding.
2024-04-09 15:48:46 +02:00
sprd_serial.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
st-asc.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
stm32-usart.c
Merge 6.9-rc5 into tty-next
2024-04-23 13:24:45 +02:00
stm32-usart.h
serial: stm32: get FIFO size from hwcfg register
2024-01-27 19:04:11 -08:00
suncore.c
…
sunhv.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
sunplus-uart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
sunsab.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
sunsab.h
…
sunsu.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
sunzilog.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
sunzilog.h
…
tegra-tcu.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
timbuart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
timbuart.h
…
uartlite.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
ucc_uart.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
vt8500_serial.c
serial: vt8500: Use port lock wrappers
2023-09-18 11:18:16 +02:00
xilinx_uartps.c
tty: serial: uartps: Add support for uartps controller reset
2024-05-04 18:11:05 +02:00
zs.c
tty: serial: switch from circ_buf to kfifo
2024-04-09 15:28:03 +02:00
zs.h
…