Merge tag 'tty-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver updates from Greg KH:
 "Here is the big tty/serial driver patchset for 4.11-rc1.

  Not much here, but a lot of little fixes and individual serial driver
  updates all over the subsystem. Majority are for the sh-sci driver and
  platform (the arch-specific changes have acks from the maintainer).

  The start of the "serial bus" code is here as well, but nothing is
  converted to use it yet. That work is still ongoing, hopefully will
  start to show up across different subsystems for 4.12 (bluetooth is
  one major place that will be used.)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (109 commits)
  tty: pl011: Work around QDF2400 E44 stuck BUSY bit
  atmel_serial: Use the fractional divider when possible
  tty: Remove extra include in HVC console tty framework
  serial: exar: Enable MSI support
  serial: exar: Move register defines from uapi header to consumer site
  serial: pci: Remove unused pci_boards entries
  serial: exar: Move Commtech adapters to 8250_exar as well
  serial: exar: Fix feature control register constants
  serial: exar: Fix initialization of EXAR registers for ports > 0
  serial: exar: Fix mapping of port I/O resources
  serial: sh-sci: fix hardware RX trigger level setting
  tty/serial: atmel: ensure state is restored after suspending
  serial: 8250_dw: Avoid "too much work" from bogus rx timeout interrupt
  serdev: ttyport: check whether tty_init_dev() fails
  serial: 8250_pci: make pciserial_detach_ports() static
  ARM: dts: STiH410-b2260: Enable HW flow-control
  ARM: dts: STiH407-family: Use new Pinctrl groups
  ARM: dts: STiH407-pinctrl: Add Pinctrl group for HW flow-control
  ARM: dts: STiH410-b2260: Identify the UART RTS line
  dt-bindings: serial: Update 'uart-has-rtscts' description
  ...

3 files changed, 16 insertions, 4 deletions

diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
index 4c72dae2aefa..0fe03cb88628 100644
--- a/arch/arm/boot/dts/stih407-family.dtsi
+++ b/arch/arm/boot/dts/stih407-family.dtsi
@@ -222,9 +222,8 @@
 			compatible = "st,asc";
 			reg = <0x9830000 0x2c>;
 			interrupts = <GIC_SPI 122 IRQ_TYPE_NONE>;
-			pinctrl-names = "default";
-			pinctrl-0 = <&pinctrl_serial0>;
 			clocks = <&clk_s_c0_flexgen CLK_EXT2F_A9>;
+			/* Pinctrl moved out to a per-board configuration */
 
 			status = "disabled";
 		};
diff --git a/arch/arm/boot/dts/stih407-pinctrl.dtsi b/arch/arm/boot/dts/stih407-pinctrl.dtsi
index daab16b5ae64..bd1a82e8fffe 100644
--- a/arch/arm/boot/dts/stih407-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stih407-pinctrl.dtsi
@@ -465,8 +465,16 @@
 			serial0 {
 				pinctrl_serial0: serial0-0 {
 					st,pins {
-						tx = <&pio17 0 ALT1 OUT>;
-						rx = <&pio17 1 ALT1 IN>;
+						tx =  <&pio17 0 ALT1 OUT>;
+						rx =  <&pio17 1 ALT1 IN>;
+					};
+				};
+				pinctrl_serial0_hw_flowctrl: serial0-0_hw_flowctrl {
+					st,pins {
+						tx =  <&pio17 0 ALT1 OUT>;
+						rx =  <&pio17 1 ALT1 IN>;
+						cts = <&pio17 2 ALT1 IN>;
+						rts = <&pio17 3 ALT1 OUT>;
 					};
 				};
 			};
diff --git a/arch/arm/boot/dts/stih410-b2260.dts b/arch/arm/boot/dts/stih410-b2260.dts
index 06b0696cb6b8..93c14d183e29 100644
--- a/arch/arm/boot/dts/stih410-b2260.dts
+++ b/arch/arm/boot/dts/stih410-b2260.dts
@@ -62,6 +62,11 @@
 		/* Low speed expansion connector */
 		uart0: serial@9830000 {
 			label = "LS-UART0";
+			pinctrl-names = "default", "no-hw-flowctrl";
+			pinctrl-0 = <&pinctrl_serial0_hw_flowctrl>;
+			pinctrl-1 = <&pinctrl_serial0>;
+			rts-gpios = <&pio17 3 GPIO_ACTIVE_LOW>;
+			uart-has-rtscts;
 			status = "okay";
 		};