Douglas Anderson c5e7467d92 serial: 8250_early: Support kgdboc_earlycon ...

Implement the read() function in the early console driver.  With
recent kgdb patches this allows you to use kgdb to debug fairly early
into the system boot.

We only bother implementing this if polling is enabled since kgdb
can't be enabled without that.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20200507130644.v4.11.I8f668556c244776523320a95b09373a86eda11b7@changeid
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>

2020-06-02 15:15:46 +01:00

..

8250_accent.c

tty: serial: Remove redundant license text

2017-11-08 13:08:12 +01:00

8250_acorn.c

tty: serial: Remove redundant license text

2017-11-08 13:08:12 +01:00

8250_aspeed_vuart.c

serial: 8250: Check UPF_IRQ_SHARED in advance

2020-02-12 11:56:44 -08:00

8250_bcm2835aux.c

serial: 8250_bcm2835aux: Support rs485 software emulation

2020-03-07 09:52:02 +01:00

8250_boca.c

tty: serial: Remove redundant license text

2017-11-08 13:08:12 +01:00

8250_core.c

serial: 8250_port: Don't use power management for kernel console

2020-03-17 15:58:00 +01:00

8250_dma.c

serial: 8250: factor out serial8250_{set,clear}_THRI() helpers

2019-06-18 09:36:55 +02:00

8250_dw.c

serial: 8250_dw: Avoid double error messaging when IRQ absent

2019-11-04 17:45:31 +01:00

8250_dwlib.c

serial: 8250_dw: split Synopsys DesignWare 8250 common functions

2019-09-04 12:43:52 +02:00

8250_dwlib.h

tty: serial: Use the correct style for SPDX License Identifier

2020-03-07 09:52:01 +01:00

8250_early.c

serial: 8250_early: Support kgdboc_earlycon

2020-06-02 15:15:46 +01:00

8250_em.c

headers: separate linux/mod_devicetable.h from linux/platform_device.h

2018-07-07 17:52:26 +02:00

8250_exar_st16c554.c

tty: serial: Remove redundant license text

2017-11-08 13:08:12 +01:00

8250_exar.c

Merge 5.6-rc5 into tty-next

2020-03-10 10:02:49 +01:00

8250_fintek.c

serial: 8250_fintek: Make fintek_8250_set_termios static

2019-03-28 00:29:03 +09:00

8250_fourport.c

tty: serial: Remove redundant license text

2017-11-08 13:08:12 +01:00

8250_fsl.c

tty/serial: Migrate 8250_fsl to use has_sysrq

2019-12-18 15:04:42 +01:00

8250_gsc.c

remove ioremap_nocache and devm_ioremap_nocache

2020-01-06 09:45:59 +01:00

8250_hp300.c

tty: add SPDX identifiers to all remaining files in drivers/tty/

2017-11-08 13:08:12 +01:00

8250_hub6.c

tty: serial: Remove redundant license text

2017-11-08 13:08:12 +01:00

8250_ingenic.c

Serial: Ingenic: Add support for the X1000.

2019-01-30 09:31:30 +01:00

8250_ioc3.c

Fix up remaining devm_ioremap_nocache() in SGI IOC3 8250 UART driver

2020-02-08 14:19:39 -08:00

8250_lpc18xx.c

tty: Remove dev_err() usage after platform_get_irq()

2019-09-04 12:43:49 +02:00

8250_lpss.c

serial: 8250_lpss: Add ->setup() for Elkhart Lake ports

2020-03-06 13:31:19 +01:00

8250_men_mcb.c

drivers: mcb: use symbol namespaces

2019-11-03 19:54:53 +01:00

8250_mid.c

tty: serial: Remove redundant license text

2017-11-08 13:08:12 +01:00

8250_mtk.c

serial: 8250-mtk: modify mtk uart power and clock management

2020-03-06 13:28:30 +01:00

8250_of.c

serial: 8250: Generalize rs485 software emulation

2020-03-07 09:52:02 +01:00

8250_omap.c

Merge tag 'tty-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2020-03-31 16:18:55 -07:00

8250_pci.c

serial: 8250_pci: Replace zero-length array with flexible-array member

2020-02-13 12:00:23 -08:00

8250_pnp.c

serial: 8250_pnp: Move to struct dev_pm_ops

2019-09-04 12:43:46 +02:00

8250_port.c

serial: 8250: Optimize irq enable after console write

2020-03-27 15:45:54 +01:00

8250_pxa.c

serial: 8250_pxa: avoid autodetecting the port type

2020-02-19 11:38:57 +01:00

8250_tegra.c

serial: 8250_tegra: Create Tegra specific 8250 driver

2020-02-10 12:34:44 -08:00

8250_uniphier.c

tty: Remove dev_err() usage after platform_get_irq()

2019-09-04 12:43:49 +02:00

8250.h

serial: 8250: Generalize rs485 software emulation

2020-03-07 09:52:02 +01:00

Kconfig

serial: 8250_tegra: Create Tegra specific 8250 driver

2020-02-10 12:34:44 -08:00

Makefile

serial: 8250_tegra: Create Tegra specific 8250 driver

2020-02-10 12:34:44 -08:00

serial_cs.c

drivers/tty: add error handling for pcmcia_loop_config

2018-06-28 21:23:44 +09:00