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fe7f0fa43c
linux/drivers/tty/serial/8250
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Lukas Wunner fe7f0fa43c serial: 8250: Support rs485 devicetree properties 
Retrieve rs485 devicetree properties on registration of 8250 ports in
case they are attached to an rs485 transceiver.

If the property "linux,rs485-enabled-at-boot-time" is present, invoke
the ->rs485_config() callback to immediately deassert RTS, thereby
ceasing control of the bus.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: Giulio Benetti <giulio.benetti@micronovasrl.com>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/5908ea89b7f9da54872d6634b606d83db032297a.1582895077.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-07 09:52:01 +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_early: Add earlycon for BCM2835 aux uart 2020-02-10 12:34:44 -08:00
8250_boca.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
8250_core.c serial: 8250: Support rs485 devicetree properties 2020-03-07 09:52:01 +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: Setup divider when uartclk is passed 2018-04-25 14:56:12 +02:00
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 tty/serial: 8250_exar: Replace zero-length array with flexible-array member 2020-02-12 12:07:12 -08:00
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 Merge 5.6-rc3 into tty-next 2020-02-24 08:39:55 +01:00
8250_omap.c TTY/Serial driver updates for 5.6-rc1 2020-01-29 10:13:27 -08:00
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: Support rs485 devicetree properties 2020-03-07 09:52:01 +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 tty: serial: Use the correct style for SPDX License Identifier 2020-03-07 09:52:01 +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