When hardware flow-control is disabled, manual toggling of the UART's reset line (RTS) using userland applications (e.g. stty) is not possible, since the ASC IP does not provide this functionality in the same was as some other IPs do. Thus, we have to do this manually.
This set ensures the correct Pinctrl groups are configured and obtained for both manual toggling of the RTS line and for the IP to take over the lines when HW flow-control is requested by the user. Lee Jones (10): serial: st-asc: Ignore the parity error bit if 8-bit mode is enabled serial: st-asc: Provide RTS functionality serial: st-asc: Read in all Pinctrl states serial: st-asc: (De)Register GPIOD and swap Pinctrl profiles serial: st-asc: Use generic DT binding for announcing RTS/CTS lines dt-bindings: serial: Update 'uart-has-rtscts' description ARM: dts: STiH410-b2260: Identify the UART RTS line ARM: dts: STiH407-pinctrl: Add Pinctrl group for HW flow-control ARM: dts: STiH407-family: Use new Pinctrl groups ARM: dts: STiH410-b2260: Enable HW flow-control .../devicetree/bindings/serial/serial.txt | 3 +- arch/arm/boot/dts/stih407-family.dtsi | 3 +- arch/arm/boot/dts/stih407-pinctrl.dtsi | 12 ++- arch/arm/boot/dts/stih410-b2260.dts | 5 + drivers/tty/serial/st-asc.c | 101 +++++++++++++++++++-- 5 files changed, 110 insertions(+), 14 deletions(-) -- 2.9.3
