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linux/drivers/tty/serial
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Uwe Kleine-König 5289f1ce39 serial: mxs-auart: Fix baudrate calculation 
commit a6040bc610 upstream.

The reference manual for the i.MX28 recommends to calculate the divisor
as

	divisor = (UARTCLK * 32) / baud rate, rounded to the nearest integer

, so let's do this. For a typical setup of UARTCLK = 24 MHz and baud
rate = 115200 this changes the divisor from 6666 to 6667 and so the
actual baud rate improves from 115211.521 Bd (error ≅ 0.01 %) to
115194.240 Bd (error ≅ 0.005 %).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-04-08 09:30:34 +02:00
..
8250 serial: 8250_pci: Detach low-level driver during PCI error recovery 2017-03-22 12:43:39 +01:00
cpm_uart tty: serial: cpm_uart: Fix module autoload for OF platform driver 2015-10-04 19:09:21 +01:00
jsm tty: serial: jsm_tty: constify uart_ops structures 2016-09-02 15:01:16 +02:00
21285.c serial: treewide: Remove empty implementations of enable_ms() 2014-07-09 17:29:38 -07:00
altera_jtaguart.c serial: altera: constify uart_ops structures 2016-09-02 15:01:16 +02:00
altera_uart.c serial: altera: constify uart_ops structures 2016-09-02 15:01:16 +02:00
amba-pl010.c serial: Test/disable MSIs if switching from N_PPS 2014-11-06 14:57:27 -08:00
amba-pl011.c Revert "serial: pl011: add console matching function" 2016-09-30 07:46:35 +02:00
amba-pl011.h tty: amba-pl011: clean up LCR register offsets 2015-12-13 19:59:48 -08:00
apbuart.c tty: serial: apbuart: Fix module autoload for OF platform driver 2015-10-04 19:09:21 +01:00
apbuart.h tty: move drivers/serial/ to drivers/tty/serial/ 2011-01-13 12:10:18 -08:00
ar933x_uart.c tree-wide: replace config_enabled() with IS_ENABLED() 2016-08-04 08:50:07 -04:00
arc_uart.c serial/arc: constify uart_ops structures 2016-09-01 21:05:41 +02:00
atmel_serial.c tty/serial: atmel: fix TX path in atmel_console_write() 2017-04-08 09:30:34 +02:00
bcm63xx_uart.c serial/bcm63xx_uart: constify uart_ops structures 2016-09-02 15:01:16 +02:00
bfin_sport_uart.c tty: pr_warning->pr_warn and logging neatening 2014-11-25 17:06:38 -08:00
bfin_sport_uart.h tty: bfin-sport-uart: Rx interrupt is not called always with irq disabled. 2011-12-09 19:05:33 -08:00
bfin_uart.c serial:bfin-uart:Remove 'struct timeval' 2015-12-13 19:59:48 -08:00
clps711x.c serial: clps711x: Changing the compatibility string to match with the smallest supported chip 2016-07-06 17:38:16 +02:00
crisv10.c tty: Replace ASYNC_INITIALIZED bit and update atomically 2016-04-30 09:26:55 -07:00
crisv10.h cris: Remove obsolete ASYNC_SPLIT_TERMIOS behavior 2014-11-05 20:18:30 -08:00
digicolor-usart.c tty/serial: digicolor: Fix bad usage of IS_ERR_VALUE 2016-02-14 17:39:36 -08:00
dz.c serial: treewide: Remove empty implementations of enable_ms() 2014-07-09 17:29:38 -07:00
dz.h tty: move drivers/serial/ to drivers/tty/serial/ 2011-01-13 12:10:18 -08:00
earlycon-arm-semihost.c tty/serial: mark __init early_smh_setup() static 2016-09-02 15:03:35 +02:00
earlycon.c ACPI: parse SPCR and enable matching console 2016-09-28 17:46:46 +02:00
efm32-uart.c tty: serial: drop owner assignment from platform_drivers 2014-10-20 16:21:45 +02:00
etraxfs-uart.c serial: etraxfs-uart: Fix crash 2015-11-20 16:19:54 -08:00
fsl_lpuart.c tty: serial: fsl_lpuart: Fix Tx DMA edge case 2016-10-27 16:41:56 +02:00
icom.c tty: Remove unused SERIAL_DO_RESTART define 2015-12-13 19:59:48 -08:00
icom.h tty: move drivers/serial/ to drivers/tty/serial/ 2011-01-13 12:10:18 -08:00
ifx6x60.c TTY: serial/ifx6x60, initialize more 2016-04-30 09:26:55 -07:00
ifx6x60.h serial:ifx6x60:Prevent data transfer when IFX6x60 port is shutdown 2012-11-01 08:50:01 -07:00
imx.c serial: imx: Fix DCD reading 2016-09-27 12:55:27 +02:00
ioc3_serial.c tty: ioc3_serial.c: move assignment out of if () block 2015-05-10 19:04:17 +02:00
ioc4_serial.c tty: ioc4_serial.c: move assignment out of if () block 2015-05-10 19:04:17 +02:00
ip22zilog.c serial: use container_of to resolve uart_ip22zilog_port from uart_port 2014-11-05 19:20:52 -08:00
ip22zilog.h tty: move drivers/serial/ to drivers/tty/serial/ 2011-01-13 12:10:18 -08:00
Kconfig serial: SERIAL_STM32 should depend on HAS_DMA 2016-10-27 16:00:31 +02:00
kgdb_nmi.c serial: kgdb_nmi: Use bool function return values of true/false not 1/0 2015-05-06 22:26:57 +02:00
kgdboc.c treewide: Convert retrun typos to return 2013-09-04 12:26:36 +02:00
lantiq.c drivers/tty: make serial/lantic.c driver explicitly non-modular 2015-07-23 18:27:41 -07:00
lpc32xx_hs.c tty: serial: lpc32xx_hs: fix handling platform_get_irq result 2015-10-04 19:09:21 +01:00
m32r_sio.c serial: m32r_sio: make it explicitly non-modular 2016-06-25 14:00:06 -07:00
m32r_sio_reg.h m32r: relocate drivers back out of 8250 dir 2012-02-08 15:04:32 -08:00
Makefile TTY and Serial driver update for 4.7-rc1 2016-05-20 20:57:27 -07:00
max310x.c serial: max310x: Set IRQF_TRIGGER_FALLING flag when dev.of_node is not NULL 2016-09-15 12:35:49 +02:00
max3100.c tty: serial: constify uart_ops structures 2016-09-02 15:01:16 +02:00
mcf.c drivers/tty/serial/mcf.c: fix typo on SERIAL_MCF_CONSOLE 2015-05-06 22:26:59 +02:00
men_z135_uart.c tty: serial: constify uart_ops structures 2016-09-02 15:01:16 +02:00
meson_uart.c tty: serial: meson: Implement earlycon support 2016-04-30 09:26:55 -07:00
mpc52xx_uart.c tty: serial: constify psc_ops structs 2016-02-06 22:31:47 -08:00
mps2-uart.c serial: mps2-uart: make driver explicitly non-modular 2016-06-25 14:01:57 -07:00
mpsc.c TTY: serial/mpsc, remove unused fields 2016-02-06 22:16:21 -08:00
msm_serial.c tty: serial: msm: Fix module autoload 2017-02-26 11:10:51 +01:00
mux.c parisc: serial/mux: Convert to uart_console_device instead of open-coded 2015-10-22 15:44:28 +02:00
mvebu-uart.c serial: mvebu-uart: free the IRQ in ->shutdown() 2016-06-25 14:00:06 -07:00
mxs-auart.c serial: mxs-auart: Fix baudrate calculation 2017-04-08 09:30:34 +02:00
netx-serial.c tty: serial: drop owner assignment from platform_drivers 2014-10-20 16:21:45 +02:00
omap-serial.c Merge 4.5-rc4 into tty-next 2016-02-14 14:36:04 -08:00
pch_uart.c serial: pch_uart: add terminate entry for dmi_system_id tables 2016-10-27 16:01:31 +02:00
pic32_uart.c serial: pic32_uart: Fix double free of 'sport->irq_fault_name'. 2016-06-25 13:50:53 -07:00
pic32_uart.h serial: pic32_uart: Add PIC32 UART driver 2016-05-13 14:01:56 +02:00
pmac_zilog.c TTY: serial, handle platform_get_irq retval properly 2016-06-25 09:01:52 -07:00
pmac_zilog.h tty/serial/pmac_zilog: Fix suspend & resume 2011-12-16 11:10:01 +11:00
pnx8xxx_uart.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
pxa.c serial: pxa: make it explicitly non-modular 2016-06-25 14:00:06 -07:00
rp2.c tty: remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-08 17:09:07 -08:00
sa1100.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
samsung.c serial: samsung: Continue to work if DMA request fails 2017-03-18 19:14:33 +08:00
samsung.h serial: samsung: Register cpufreq notifier only on S3C24xx 2016-08-31 15:39:58 +02:00
sb1250-duart.c serial: Fix IGNBRK handling 2014-06-19 13:04:52 -07:00
sc16is7xx.c sc16is7xx: Drop bogus use of IRQF_ONESHOT 2017-01-09 08:32:22 +01:00
sccnxp.c tty: serial: drop owner assignment from platform_drivers 2014-10-20 16:21:45 +02:00
serial-tegra.c TTY: serial, handle platform_get_irq retval properly 2016-06-25 09:01:52 -07:00
serial_core.c tty: serial_core: fix NULL struct tty pointer access in uart_write_wakeup 2016-10-28 08:13:07 -04:00
serial_ks8695.c serial: Fix ASYNC_* => UPF_* flags misuse 2016-01-28 14:17:42 -08:00
serial_mctrl_gpio.c serial: mctrl_gpio: enable API usage only for initialized mctrl_gpios struct 2016-06-25 14:30:42 -07:00
serial_mctrl_gpio.h serial: mctrl_gpio: add modem control read routine 2016-06-25 14:30:42 -07:00
serial_txx9.c tty: serial: drop owner assignment from platform_drivers 2014-10-20 16:21:45 +02:00
sh-sci.c tty: serial: constify uart_ops structures 2016-09-02 15:01:16 +02:00
sh-sci.h serial: sh-sci: Clear (H)SCIF timeout and overrun during reset 2016-06-25 09:09:53 -07:00
sirfsoc_uart.c serial: sirf: Use generic uart-has-rtscts DT property 2016-04-30 09:26:55 -07:00
sirfsoc_uart.h serial: sirf: make fifo functions static 2016-06-25 14:01:57 -07:00
sn_console.c drivers/tty: make serial/sn_console.c driver explicitly non-modular 2015-07-23 18:27:41 -07:00
sprd_serial.c remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
st-asc.c serial: st-asc: constify uart_ops structures 2016-09-02 15:01:16 +02:00
stm32-usart.c serial: stm32: mark symbols static where possible 2016-09-27 12:55:27 +02:00
stm32-usart.h serial: stm32: Fix comparisons with undefined register 2016-10-27 16:00:31 +02:00
suncore.c drivers/tty: make serial/suncore.c driver explicitly non-modular 2015-07-23 18:27:41 -07:00
sunhv.c sparc: serial: sunhv: fix a double lock bug 2016-07-27 22:54:52 -07:00
sunsab.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
sunsab.h tty: move drivers/serial/ to drivers/tty/serial/ 2011-01-13 12:10:18 -08:00
sunsu.c serial/sunsu: Deinline wait_for_xmitr, save 165 bytes 2015-12-13 19:59:48 -08:00
sunzilog.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
sunzilog.h tty: move drivers/serial/ to drivers/tty/serial/ 2011-01-13 12:10:18 -08:00
tilegx.c serial: treewide: Remove empty implementations of enable_ms() 2014-07-09 17:29:38 -07:00
timbuart.c tty: serial: constify uart_ops structures 2016-09-02 15:01:16 +02:00
timbuart.h tty: move drivers/serial/ to drivers/tty/serial/ 2011-01-13 12:10:18 -08:00
uartlite.c serial-uartlite: constify uart_ops structures 2016-09-02 15:01:16 +02:00
ucc_uart.c QE-UART: add "fsl,t1040-ucc-uart" to of_device_id 2016-05-01 13:55:12 -07:00
vr41xx_siu.c tty: serial: drop owner assignment from platform_drivers 2014-10-20 16:21:45 +02:00
vt8500_serial.c serial: vt8500_serial: Fix a parameter of find_first_zero_bit. 2016-08-31 15:42:28 +02:00
xilinx_uartps.c serial: xuartps: Add new compatible string for ZynqMP 2016-10-27 16:00:32 +02:00
zs.c serial: zs: Fix a transmit lockup in console output 2016-02-06 23:13:30 -08:00
zs.h tty: move drivers/serial/ to drivers/tty/serial/ 2011-01-13 12:10:18 -08:00