From: Lino Sanfilippo <l.sanfilippo@xxxxxxxxxx> The following series includes cleanup and fixes around RS485 in the serial core and uart drivers: Patch 1: ar933x: Fix check for RS485 support Patch 2: Remove superfluous code in ar933x. Patch 3: Set the rs485 termination GPIO in the serial core. This is needed since if the gpio is only accessible in sleepable context. It also is a further step to make the RS485 handling more generic. Patch 4: Move sanitizing of RS485 delays into an own function. This is in preparation of patch 4. Patch 5: Sanitize RS485 delays read from device tree. Patch 6: Correct RS485 delays in binding documentation. Patch 7: Remove redundant code in 8250_dwlib. Patch 8: Remove redundant code in 8250-lpc18xx. Changes in v3: - remove obsolete patch (due to changes by Ilpo) - corrected and rephrase commit messages (pointed out by Andy) - remove superfluous check (pointed out by Andy) - separate ar933x UART bugfix and cleanup into different patches (as suggested by Ilpo) - put the ar933x fix at the beginning of the series (as suggested by Andy) Changes in v2: - print a warning if termination GPIO is specified in DT/ACPI but is not supported by driver - fixed commit message for devtree documentation (as suggested by Andy) - fixed code comment - added patch 7 Lino Sanfilippo (8): serial: ar933x: Fix check for RS485 support serial: ar933x: Remove superfluous code in ar933x_config_rs485() serial: core, 8250: set RS485 termination gpio in serial core serial: core: move sanitizing of RS485 delays into own function serial: core: sanitize RS485 delays read from device tree dt_bindings: rs485: Correct delay values serial: 8250_dwlib: remove redundant sanity check for RS485 flags serial: 8250: lpc18xx: Remove redundant sanity check for RS485 flags .../devicetree/bindings/serial/rs485.yaml | 4 +- drivers/tty/serial/8250/8250_dwlib.c | 10 +--- drivers/tty/serial/8250/8250_lpc18xx.c | 6 +- drivers/tty/serial/8250/8250_port.c | 3 - drivers/tty/serial/ar933x_uart.c | 18 ++---- drivers/tty/serial/serial_core.c | 60 ++++++++++++------- 6 files changed, 50 insertions(+), 51 deletions(-) base-commit: 7e5b4322cde067e1d0f1bf8f490e93f664a7c843 -- 2.25.1
