Merge tag 'tty-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty and serial updates from Greg KH:
 "Here is the big set of tty/serial driver changes for 6.7-rc1. Included
  in here are:

   - console/vgacon cleanups and removals from Arnd

   - tty core and n_tty cleanups from Jiri

   - lots of 8250 driver updates and cleanups

   - sc16is7xx serial driver updates

   - dt binding updates

   - first set of port lock wrapers from Thomas for the printk fixes
     coming in future releases

   - other small serial and tty core cleanups and updates

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

* tag 'tty-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (193 commits)
  serdev: Replace custom code with device_match_acpi_handle()
  serdev: Simplify devm_serdev_device_open() function
  serdev: Make use of device_set_node()
  tty: n_gsm: add copyright Siemens Mobility GmbH
  tty: n_gsm: fix race condition in status line change on dead connections
  serial: core: Fix runtime PM handling for pending tx
  vgacon: fix mips/sibyte build regression
  dt-bindings: serial: drop unsupported samsung bindings
  tty: serial: samsung: drop earlycon support for unsupported platforms
  tty: 8250: Add note for PX-835
  tty: 8250: Fix IS-200 PCI ID comment
  tty: 8250: Add Brainboxes Oxford Semiconductor-based quirks
  tty: 8250: Add support for Intashield IX cards
  tty: 8250: Add support for additional Brainboxes PX cards
  tty: 8250: Fix up PX-803/PX-857
  tty: 8250: Fix port count of PX-257
  tty: 8250: Add support for Intashield IS-100
  tty: 8250: Add support for Brainboxes UP cards
  tty: 8250: Add support for additional Brainboxes UC cards
  tty: 8250: Remove UC-257 and UC-431
  ...

22 files changed, 362 insertions, 214 deletions

diff --git a/Documentation/ABI/testing/sysfs-tty b/Documentation/ABI/testing/sysfs-tty
index 820e412d38a8..895c47f05f6f 100644
--- a/Documentation/ABI/testing/sysfs-tty
+++ b/Documentation/ABI/testing/sysfs-tty
@@ -87,19 +87,22 @@ What:		/sys/class/tty/ttyS<x>/close_delay
 Date:		October 2012
 Contact:	Alan Cox <alan@linux.intel.com>
 Description:
-		 Show the closing delay time for this port in ms.
+		Show the closing delay time for this port in centiseconds.
 
-		 These sysfs values expose the TIOCGSERIAL interface via
-		 sysfs rather than via ioctls.
+		These sysfs values expose the TIOCGSERIAL interface via
+		sysfs rather than via ioctls.
 
 What:		/sys/class/tty/ttyS<x>/closing_wait
 Date:		October 2012
 Contact:	Alan Cox <alan@linux.intel.com>
 Description:
-		 Show the close wait time for this port in ms.
+		Show the close wait time for this port in centiseconds.
 
-		 These sysfs values expose the TIOCGSERIAL interface via
-		 sysfs rather than via ioctls.
+		Waiting forever is represented as 0. If waiting on close is
+		disabled then the value is 65535.
+
+		These sysfs values expose the TIOCGSERIAL interface via
+		sysfs rather than via ioctls.
 
 What:		/sys/class/tty/ttyS<x>/custom_divisor
 Date:		October 2012
diff --git a/Documentation/devicetree/bindings/serial/esp,esp32-acm.yaml b/Documentation/devicetree/bindings/serial/esp,esp32-acm.yaml
new file mode 100644
index 000000000000..77fbb2c72171
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/esp,esp32-acm.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/esp,esp32-acm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ESP32S3 ACM gadget controller
+
+maintainers:
+  - Max Filippov <jcmvbkbc@gmail.com>
+
+description:
+  Fixed function USB CDC-ACM gadget controller of the Espressif ESP32S3 SoC.
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    const: esp,esp32s3-acm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    serial@60038000 {
+      compatible = "esp,esp32s3-acm";
+      reg = <0x60038000 0x1000>;
+      interrupts = <96 3 0>;
+    };
diff --git a/Documentation/devicetree/bindings/serial/esp,esp32-uart.yaml b/Documentation/devicetree/bindings/serial/esp,esp32-uart.yaml
new file mode 100644
index 000000000000..2a80ca997a0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/esp,esp32-uart.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/esp,esp32-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ESP32xx UART controllers
+
+maintainers:
+  - Max Filippov <jcmvbkbc@gmail.com>
+
+description:
+  ESP32 UART controller is a part of the ESP32 SoC.
+  ESP32S3 UART controller is a part of the ESP32S3 SoC.
+  Both SoCs are produced by Espressif Systems Co. Ltd.
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    enum:
+      - esp,esp32-uart
+      - esp,esp32s3-uart
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    serial@60000000 {
+      compatible = "esp,esp32s3-uart";
+      reg = <0x60000000 0x80>;
+      interrupts = <27 1 0>;
+      clocks = <&serial_clk>;
+    };
diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml b/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml
index 40414247d61a..83035553044a 100644
--- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml
@@ -70,6 +70,8 @@ properties:
   interrupts:
     maxItems: 1
 
+  wakeup-source: true
+
   fsl,dte-mode:
     $ref: /schemas/types.yaml#/definitions/flag
     description: |
diff --git a/Documentation/devicetree/bindings/serial/fsl-mxs-auart.yaml b/Documentation/devicetree/bindings/serial/fsl-mxs-auart.yaml
index 6a400a5e6fc7..da032effffe6 100644
--- a/Documentation/devicetree/bindings/serial/fsl-mxs-auart.yaml
+++ b/Documentation/devicetree/bindings/serial/fsl-mxs-auart.yaml
@@ -14,10 +14,13 @@ allOf:
 
 properties:
   compatible:
-    enum:
-      - fsl,imx23-auart
-      - fsl,imx28-auart
-      - alphascale,asm9260-auart
+    oneOf:
+      - const: fsl,imx23-auart
+      - const: alphascale,asm9260-auart
+      - items:
+          - enum:
+              - fsl,imx28-auart
+          - const: fsl,imx23-auart
 
   reg:
     maxItems: 1
@@ -82,7 +85,7 @@ examples:
     };
 
     auart0: serial@8006a000 {
-        compatible = "fsl,imx28-auart";
+        compatible = "fsl,imx28-auart", "fsl,imx23-auart";
         reg = <0x8006a000 0x2000>;
         interrupts = <112>;
         dmas = <&dma_apbx 8>, <&dma_apbx 9>;
diff --git a/Documentation/devicetree/bindings/serial/maxim,max310x.txt b/Documentation/devicetree/bindings/serial/maxim,max310x.txt
deleted file mode 100644
index 79e10a05a96a..000000000000
--- a/Documentation/devicetree/bindings/serial/maxim,max310x.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-* Maxim MAX310X advanced Universal Asynchronous Receiver-Transmitter (UART)
-
-Required properties:
-- compatible: Should be one of the following:
-  - "maxim,max3107" for Maxim MAX3107,
-  - "maxim,max3108" for Maxim MAX3108,
-  - "maxim,max3109" for Maxim MAX3109,
-  - "maxim,max14830" for Maxim MAX14830.
-- reg: SPI chip select number.
-- interrupts: Specifies the interrupt source of the parent interrupt
-  controller. The format of the interrupt specifier depends on the
-  parent interrupt controller.
-- clocks: phandle to the IC source clock.
-- clock-names: Should be "xtal" if clock is an external crystal or
-  "osc" if an external clock source is used.
-
-Optional properties:
-- gpio-controller: Marks the device node as a GPIO controller.
-- #gpio-cells: Should be two. The first cell is the GPIO number and
-  the second cell is used to specify the GPIO polarity:
-    0 = active high,
-    1 = active low.
-
-Example:
-
-/ {
-	clocks {
-		spi_uart_clk: osc_max14830 {
-			compatible = "fixed-clock";
-			#clock-cells = <0>;
-			clock-frequency = <3686400>;
-		};
-
-	};
-};
-
-&spi0 {
-	max14830: max14830@0 {
-		compatible = "maxim,max14830";
-		reg = <0>;
-		clocks = <&spi_uart_clk>;
-		clock-names = "osc";
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
-		gpio-controller;
-		#gpio-cells = <2>;
-	};
-};
diff --git a/Documentation/devicetree/bindings/serial/maxim,max310x.yaml b/Documentation/devicetree/bindings/serial/maxim,max310x.yaml
new file mode 100644
index 000000000000..889eeaca64a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/maxim,max310x.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/maxim,max310x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX310X Advanced Universal Asynchronous Receiver-Transmitter (UART)
+
+maintainers:
+  - Hugo Villeneuve <hvilleneuve@dimonoff.com>
+
+properties:
+  compatible:
+    enum:
+      - maxim,max3107
+      - maxim,max3108
+      - maxim,max3109
+      - maxim,max14830
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    enum:
+      - xtal # External crystal
+      - osc  # External clock source
+
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 2
+
+  gpio-line-names:
+    minItems: 1
+    maxItems: 16
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+  - $ref: /schemas/serial/serial.yaml#
+  - $ref: /schemas/serial/rs485.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        serial@2c {
+            compatible = "maxim,max3107";
+            reg = <0x2c>;
+            clocks = <&xtal4m>;
+            clock-names = "xtal";
+            interrupt-parent = <&gpio3>;
+            interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+            gpio-controller;
+            #gpio-cells = <2>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/serial/nvidia,tegra20-hsuart.yaml b/Documentation/devicetree/bindings/serial/nvidia,tegra20-hsuart.yaml
index 04d55fecf47c..a5d67563cd53 100644
--- a/Documentation/devicetree/bindings/serial/nvidia,tegra20-hsuart.yaml
+++ b/Documentation/devicetree/bindings/serial/nvidia,tegra20-hsuart.yaml
@@ -91,11 +91,6 @@ properties:
         - description: range upper bound
         - description: adjustment (in permyriad, i.e. 0.01%)
 
-allOf:
-  - $ref: serial.yaml
-
-unevaluatedProperties: false
-
 required:
   - compatible
   - reg
@@ -106,6 +101,11 @@ required:
   - dmas
   - dma-names
 
+allOf:
+  - $ref: serial.yaml
+
+unevaluatedProperties: false
+
 examples:
   - |
     #include <dt-bindings/clock/tegra30-car.h>
diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
deleted file mode 100644
index 1a7e4bff0456..000000000000
--- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
+++ /dev/null
@@ -1,118 +0,0 @@
-* NXP SC16IS7xx advanced Universal Asynchronous Receiver-Transmitter (UART)
-* i2c as bus
-
-Required properties:
-- compatible: Should be one of the following:
-  - "nxp,sc16is740" for NXP SC16IS740,
-  - "nxp,sc16is741" for NXP SC16IS741,
-  - "nxp,sc16is750" for NXP SC16IS750,
-  - "nxp,sc16is752" for NXP SC16IS752,
-  - "nxp,sc16is760" for NXP SC16IS760,
-  - "nxp,sc16is762" for NXP SC16IS762.
-- reg: I2C address of the SC16IS7xx device.
-- interrupts: Should contain the UART interrupt
-- clocks: Reference to the IC source clock.
-	OR (when there is no clock provider visible to the platform)
-- clock-frequency: The source clock frequency for the IC.
-
-Optional properties:
-- gpio-controller: Marks the device node as a GPIO controller.
-- #gpio-cells: Should be two. The first cell is the GPIO number and
-  the second cell is used to specify the GPIO polarity:
-    0 = active high,
-    1 = active low.
-- irda-mode-ports: An array that lists the indices of the port that
-		   should operate in IrDA mode.
-- nxp,modem-control-line-ports: An array that lists the indices of the port that
-				should have shared GPIO lines configured as
-				modem control lines.
-
-Example:
-        sc16is750: sc16is750@51 {
-                compatible = "nxp,sc16is750";
-                reg = <0x51>;
-                clocks = <&clk20m>;
-                interrupt-parent = <&gpio3>;
-                interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-                gpio-controller;
-                #gpio-cells = <2>;
-        };
-
-	sc16is752: sc16is752@53 {
-		compatible = "nxp,sc16is752";
-		reg = <0x53>;
-		clocks = <&clk20m>;
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-		nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */
-		gpio-controller; /* Port 0 as GPIOs */
-		#gpio-cells = <2>;
-	};
-
-	sc16is752: sc16is752@54 {
-		compatible = "nxp,sc16is752";
-		reg = <0x54>;
-		clocks = <&clk20m>;
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-		nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */
-	};
-
-* spi as bus
-
-Required properties:
-- compatible: Should be one of the following:
-  - "nxp,sc16is740" for NXP SC16IS740,
-  - "nxp,sc16is741" for NXP SC16IS741,
-  - "nxp,sc16is750" for NXP SC16IS750,
-  - "nxp,sc16is752" for NXP SC16IS752,
-  - "nxp,sc16is760" for NXP SC16IS760,
-  - "nxp,sc16is762" for NXP SC16IS762.
-- reg: SPI chip select number.
-- interrupts: Specifies the interrupt source of the parent interrupt
-  controller. The format of the interrupt specifier depends on the
-  parent interrupt controller.
-- clocks: phandle to the IC source clock.
-
-Optional properties:
-- gpio-controller: Marks the device node as a GPIO controller.
-- #gpio-cells: Should be two. The first cell is the GPIO number and
-  the second cell is used to specify the GPIO polarity:
-    0 = active high,
-    1 = active low.
-- irda-mode-ports: An array that lists the indices of the port that
-		   should operate in IrDA mode.
-- nxp,modem-control-line-ports: An array that lists the indices of the port that
-				should have shared GPIO lines configured as
-				modem control lines.
-
-Example:
-	sc16is750: sc16is750@0 {
-		compatible = "nxp,sc16is750";
-		reg = <0>;
-		clocks = <&clk20m>;
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-		gpio-controller;
-		#gpio-cells = <2>;
-	};
-
-	sc16is752: sc16is752@1 {
-		compatible = "nxp,sc16is752";
-		reg = <1>;
-		clocks = <&clk20m>;
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-		nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */
-		gpio-controller; /* Port 0 as GPIOs */
-		#gpio-cells = <2>;
-	};
-
-	sc16is752: sc16is752@2 {
-		compatible = "nxp,sc16is752";
-		reg = <2>;
-		clocks = <&clk20m>;
-		interrupt-parent = <&gpio3>;
-		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
-		nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */
-	};
diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml
new file mode 100644
index 000000000000..5dec15b7e7c3
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml
@@ -0,0 +1,127 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/nxp,sc16is7xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP SC16IS7xx Advanced Universal Asynchronous Receiver-Transmitter (UART)
+
+maintainers:
+  - Hugo Villeneuve <hvilleneuve@dimonoff.com>
+
+properties:
+  compatible:
+    enum:
+      - nxp,sc16is740
+      - nxp,sc16is741
+      - nxp,sc16is750
+      - nxp,sc16is752
+      - nxp,sc16is760
+      - nxp,sc16is762
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-frequency:
+    description:
+      When there is no clock provider visible to the platform, this
+      is the source crystal or external clock frequency for the IC in Hz.
+    minimum: 1
+    maximum: 80000000
+
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 2
+
+  gpio-line-names:
+    minItems: 1
+    maxItems: 8
+
+  irda-mode-ports:
+    description: |
+      An array that lists the indices of the port that should operate in IrDA
+      mode:
+      0: port A
+      1: port B
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 2
+    items:
+      minimum: 0
+      maximum: 1
+
+  nxp,modem-control-line-ports:
+    description: |
+      An array that lists the indices of the port that should have shared GPIO
+      lines configured as modem control lines:
+      0: port A
+      1: port B
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 2
+    items:
+      minimum: 0
+      maximum: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+  - $ref: /schemas/serial/serial.yaml#
+  - $ref: /schemas/serial/rs485.yaml#
+
+oneOf:
+  - required:
+      - clocks
+  - required:
+      - clock-frequency
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        serial@51 {
+            compatible = "nxp,sc16is750";
+            reg = <0x51>;
+            clocks = <&clk20m>;
+            interrupt-parent = <&gpio3>;
+            interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+            gpio-controller;
+            #gpio-cells = <2>;
+        };
+
+        serial@53 {
+            compatible = "nxp,sc16is752";
+            reg = <0x53>;
+            clocks = <&clk20m>;
+            interrupt-parent = <&gpio3>;
+            interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+            nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */
+            gpio-controller; /* Port 0 as GPIOs */
+            #gpio-cells = <2>;
+        };
+
+        serial@54 {
+            compatible = "nxp,sc16is752";
+            reg = <0x54>;
+            clocks = <&clk20m>;
+            interrupt-parent = <&gpio3>;
+            interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+            nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */
+        };
+    };
diff --git a/Documentation/devicetree/bindings/serial/qcom,msm-uart.yaml b/Documentation/devicetree/bindings/serial/qcom,msm-uart.yaml
index a052aaef21f4..ea6abfe2d95e 100644
--- a/Documentation/devicetree/bindings/serial/qcom,msm-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/qcom,msm-uart.yaml
@@ -40,11 +40,11 @@ required:
   - interrupts
   - reg
 
-unevaluatedProperties: false
-
 allOf:
   - $ref: /schemas/serial/serial.yaml#
 
+unevaluatedProperties: false
+
 examples:
   - |
     serial@a9c00000 {
diff --git a/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.yaml b/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.yaml
index 484b9a51f6a9..ee52bf8e8917 100644
--- a/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.yaml
+++ b/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.yaml
@@ -78,8 +78,6 @@ required:
   - interrupts
   - reg
 
-unevaluatedProperties: false
-
 allOf:
   - $ref: /schemas/serial/serial.yaml#
 
@@ -97,6 +95,8 @@ allOf:
         reg:
           maxItems: 1
 
+unevaluatedProperties: false
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
diff --git a/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml b/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml
index 3fc2601f1338..89f1eb0f2c5a 100644
--- a/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml
@@ -38,6 +38,13 @@ properties:
       - const: sclk
       - const: pclk
 
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
 allOf:
   - $ref: serial.yaml#
 
@@ -53,13 +60,6 @@ allOf:
         clock-names:
           minItems: 2
 
-required:
-  - compatible
-  - reg
-  - interrupts
-  - clocks
-  - clock-names
-
 unevaluatedProperties: false
 
 examples:
diff --git a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
index 1c7f1276aed6..2046e2dc0a3d 100644
--- a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
@@ -111,8 +111,6 @@ required:
   - clock-names
   - power-domains
 
-unevaluatedProperties: false
-
 if:
   properties:
     compatible:
@@ -125,6 +123,8 @@ then:
   required:
     - resets
 
+unevaluatedProperties: false
+
 examples:
   - |
     #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
diff --git a/Documentation/devicetree/bindings/serial/renesas,scif.yaml b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
index 99030fc18c45..4610a5bd580c 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
@@ -79,6 +79,7 @@ properties:
           - enum:
               - renesas,scif-r9a07g043      # RZ/G2UL and RZ/Five
               - renesas,scif-r9a07g054      # RZ/V2L
+              - renesas,scif-r9a08g045      # RZ/G3S
           - const: renesas,scif-r9a07g044   # RZ/G2{L,LC} fallback
 
   reg:
diff --git a/Documentation/devicetree/bindings/serial/renesas,scifa.yaml b/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
index 499507678cdf..c98657cf4666 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
@@ -77,8 +77,6 @@ required:
   - clock-names
   - power-domains
 
-unevaluatedProperties: false
-
 if:
   properties:
     compatible:
@@ -89,6 +87,8 @@ then:
   required:
     - resets
 
+unevaluatedProperties: false
+
 examples:
   - |
     #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
diff --git a/Documentation/devicetree/bindings/serial/renesas,scifb.yaml b/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
index 810d8a991fdd..fb695b3111ac 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
@@ -77,8 +77,6 @@ required:
   - clock-names
   - power-domains
 
-unevaluatedProperties: false
-
 if:
   properties:
     compatible:
@@ -89,6 +87,8 @@ then:
   required:
     - resets
 
+unevaluatedProperties: false
+
 examples:
   - |
     #include <dt-bindings/clock/r8a7740-clock.h>
diff --git a/Documentation/devicetree/bindings/serial/rs485.yaml b/Documentation/devicetree/bindings/serial/rs485.yaml
index 303a443d9e29..9418fd66a8e9 100644
--- a/Documentation/devicetree/bindings/serial/rs485.yaml
+++ b/Documentation/devicetree/bindings/serial/rs485.yaml
@@ -29,6 +29,10 @@ properties:
           default: 0
           maximum: 100
 
+  rs485-rts-active-high:
+    description: drive RTS high when sending (this is the default).
+    $ref: /schemas/types.yaml#/definitions/flag
+
   rs485-rts-active-low:
     description: drive RTS low when sending (default is high).
     $ref: /schemas/types.yaml#/definitions/flag
diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
index 8bd88d5cbb11..ac60ab1e35e3 100644
--- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
@@ -24,9 +24,6 @@ properties:
       - enum:
           - apple,s5l-uart
           - axis,artpec8-uart
-          - samsung,s3c2410-uart
-          - samsung,s3c2412-uart
-          - samsung,s3c2440-uart
           - samsung,s3c6400-uart
           - samsung,s5pv210-uart
           - samsung,exynos4210-uart
@@ -86,8 +83,6 @@ required:
   - interrupts
   - reg
 
-unevaluatedProperties: false
-
 allOf:
   - $ref: serial.yaml#
 
@@ -96,7 +91,6 @@ allOf:
         compatible:
           contains:
             enum:
-              - samsung,s3c2410-uart
               - samsung,s5pv210-uart
     then:
       properties:
@@ -128,6 +122,8 @@ allOf:
             - const: uart
             - const: clk_uart_baud0
 
+unevaluatedProperties: false
+
 examples:
   - |
     #include <dt-bindings/clock/samsung,s3c64xx-clock.h>
diff --git a/Documentation/devicetree/bindings/serial/serial.yaml b/Documentation/devicetree/bindings/serial/serial.yaml
index ea277560a596..65804ca274ae 100644
--- a/Documentation/devicetree/bindings/serial/serial.yaml
+++ b/Documentation/devicetree/bindings/serial/serial.yaml
@@ -87,16 +87,8 @@ properties:
     description:
       TX FIFO threshold configuration (in bytes).
 
-if:
-  required:
-    - uart-has-rtscts
-then:
-  properties:
-    cts-gpios: false
-    rts-gpios: false
-
 patternProperties:
-  "^bluetooth|gnss|gps|mcu$":
+  "^(bluetooth|bluetooth-gnss|gnss|gps|mcu)$":
     if:
       type: object
     then:
@@ -136,6 +128,14 @@ patternProperties:
       required:
         - compatible
 
+if:
+  required:
+    - uart-has-rtscts
+then:
+  properties:
+    cts-gpios: false
+    rts-gpios: false
+
 additionalProperties: true
 
 examples:
diff --git a/Documentation/driver-api/tty/index.rst b/Documentation/driver-api/tty/index.rst
index 2d32606a4278..b490da11f257 100644
--- a/Documentation/driver-api/tty/index.rst
+++ b/Documentation/driver-api/tty/index.rst
@@ -36,6 +36,7 @@ In-detail description of the named TTY structures is in separate documents:
    tty_struct
    tty_ldisc
    tty_buffer
+   tty_ioctl
    tty_internals
 
 Writing TTY Driver
diff --git a/Documentation/driver-api/tty/tty_ioctl.rst b/Documentation/driver-api/tty/tty_ioctl.rst
new file mode 100644
index 000000000000..3ff1ac5e07f1
--- /dev/null
+++ b/Documentation/driver-api/tty/tty_ioctl.rst
@@ -0,0 +1,10 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================
+TTY IOCTL Helpers
+=================
+
+.. kernel-doc:: drivers/tty/tty_ioctl.c
+
+.. kernel-doc:: include/linux/tty.h
+   :identifiers: tty_get_baud_rate