Merge tag 'tty-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial updates from Greg KH:
 "Here is a small set of tty and serial driver updates for 6.11-rc1. Not
  much happened this cycle, unlike the previous kernel release which had
  lots of "excitement" in this part of the kernel. Included in here are
  the following changes:

   - dt binding updates for new platforms

   - 8250 driver updates

   - various small serial driver fixes and updates

   - printk/console naming and matching attempt #2 (was reverted for
     6.10-final, should be good to go this time around, acked by the
     relevant maintainers).

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

* tag 'tty-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (22 commits)
  Documentation: kernel-parameters: Add DEVNAME:0.0 format for serial ports
  serial: core: Add serial_base_match_and_update_preferred_console()
  printk: Add match_devname_and_update_preferred_console()
  serial: sc16is7xx: hardware reset chip if reset-gpios is defined in DT
  dt-bindings: serial: sc16is7xx: add reset-gpios
  dt-bindings: serial: vt8500-uart: convert to json-schema
  serial: 8250_platform: Explicitly show we initialise ISA ports only once
  tty: add missing MODULE_DESCRIPTION() macros
  dt-bindings: serial: mediatek,uart: add MT7988
  serial: sh-sci: Add support for RZ/V2H(P) SoC
  dt-bindings: serial: Add documentation for Renesas RZ/V2H(P) (R9A09G057) SCIF support
  dt-bindings: serial: renesas,scif: Make 'interrupt-names' property as required
  dt-bindings: serial: renesas,scif: Validate 'interrupts' and 'interrupt-names'
  dt-bindings: serial: renesas,scif: Move ref for serial.yaml at the end
  riscv: dts: starfive: jh7110: Add the core reset and jh7110 compatible for uarts
  serial: 8250_dw: Use reset array API to get resets
  dt-bindings: serial: snps-dw-apb-uart: Add one more reset signal for StarFive JH7110 SoC
  serial: 8250: Extract platform driver
  serial: 8250: Extract RSA bits
  serial: imx: stop casting struct uart_port to struct imx_port
  ...

Author: torvalds

Documentation/admin-guide/kernel-parameters.txt

@@ -792,6 +792,25 @@
 			Documentation/networking/netconsole.rst for an
 			alternative.
 
+		<DEVNAME>:<n>.<n>[,options]
+			Use the specified serial port on the serial core bus.
+			The addressing uses DEVNAME of the physical serial port
+			device, followed by the serial core controller instance,
+			and the serial port instance. The options are the same
+			as documented for the ttyS addressing above.
+
+			The mapping of the serial ports to the tty instances
+			can be viewed with:
+
+			$ ls -d /sys/bus/serial-base/devices/*:*.*/tty/*
+			/sys/bus/serial-base/devices/00:04:0.0/tty/ttyS0
+
+			In the above example, the console can be addressed with
+			console=00:04:0.0. Note that a console addressed this
+			way will only get added when the related device driver
+			is ready. The use of an earlycon parameter in addition to
+			the console may be desired for console output early on.
+
 		uart[8250],io,<addr>[,options]
 		uart[8250],mmio,<addr>[,options]
 		uart[8250],mmio16,<addr>[,options]

Documentation/devicetree/bindings/serial/mediatek,uart.yaml

@@ -37,6 +37,7 @@ properties:
               - mediatek,mt7623-uart
               - mediatek,mt7629-uart
               - mediatek,mt7986-uart
+              - mediatek,mt7988-uart
               - mediatek,mt8127-uart
               - mediatek,mt8135-uart
               - mediatek,mt8173-uart

Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml

@@ -28,6 +28,9 @@ properties:
   clocks:
     maxItems: 1
 
+  reset-gpios:
+    maxItems: 1
+
   clock-frequency:
     description:
       When there is no clock provider visible to the platform, this
@@ -91,6 +94,7 @@ unevaluatedProperties: false
 examples:
   - |
     #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/gpio/gpio.h>
     i2c {
         #address-cells = <1>;
         #size-cells = <0>;
@@ -120,6 +124,7 @@ examples:
             compatible = "nxp,sc16is752";
             reg = <0x54>;
             clocks = <&clk20m>;
+            reset-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
             interrupt-parent = <&gpio3>;
             interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
             nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */

Documentation/devicetree/bindings/serial/renesas,scif.yaml

@@ -9,9 +9,6 @@ title: Renesas Serial Communication Interface with FIFO (SCIF)
 maintainers:
   - Geert Uytterhoeven <[email protected]>
 
-allOf:
-  - $ref: serial.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -83,40 +80,39 @@ properties:
               - renesas,scif-r9a08g045      # RZ/G3S
           - const: renesas,scif-r9a07g044   # RZ/G2{L,LC} fallback
 
+      - const: renesas,scif-r9a09g057       # RZ/V2H(P)
+
   reg:
     maxItems: 1
 
   interrupts:
     oneOf:
       - items:
           - description: A combined interrupt
-      - items:
-          - description: Error interrupt
-          - description: Receive buffer full interrupt
-          - description: Transmit buffer empty interrupt
-          - description: Break interrupt
       - items:
           - description: Error interrupt
           - description: Receive buffer full interrupt
           - description: Transmit buffer empty interrupt
           - description: Break interrupt
           - description: Data Ready interrupt
           - description: Transmit End interrupt
+          - description: Transmit End/Data Ready interrupt
+          - description: Receive buffer full interrupt (EDGE trigger)
+          - description: Transmit buffer empty interrupt (EDGE trigger)
+        minItems: 4
 
   interrupt-names:
-    oneOf:
-      - items:
-          - const: eri
-          - const: rxi
-          - const: txi
-          - const: bri
-      - items:
-          - const: eri
-          - const: rxi
-          - const: txi
-          - const: bri
-          - const: dri
-          - const: tei
+    minItems: 4
+    items:
+      - const: eri
+      - const: rxi
+      - const: txi
+      - const: bri
+      - const: dri
+      - const: tei
+      - const: tei-dri
+      - const: rxi-edge
+      - const: txi-edge
 
   clocks:
     minItems: 1
@@ -161,18 +157,92 @@ required:
   - clock-names
   - power-domains
 
-if:
-  properties:
-    compatible:
-      contains:
-        enum:
-          - renesas,rcar-gen2-scif
-          - renesas,rcar-gen3-scif
-          - renesas,rcar-gen4-scif
-          - renesas,scif-r9a07g044
-then:
-  required:
-    - resets
+allOf:
+  - $ref: serial.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,rcar-gen2-scif
+              - renesas,rcar-gen3-scif
+              - renesas,rcar-gen4-scif
+              - renesas,scif-r9a07g044
+              - renesas,scif-r9a09g057
+    then:
+      required:
+        - resets
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,rcar-gen1-scif
+              - renesas,rcar-gen2-scif
+              - renesas,rcar-gen3-scif
+              - renesas,rcar-gen4-scif
+    then:
+      properties:
+        interrupts:
+          maxItems: 1
+
+        interrupt-names: false
+    else:
+      required:
+        - interrupt-names
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,scif-r7s72100
+    then:
+      properties:
+        interrupts:
+          minItems: 4
+          maxItems: 4
+
+        interrupt-names:
+          maxItems: 4
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,scif-r7s9210
+              - renesas,scif-r9a07g044
+    then:
+      properties:
+        interrupts:
+          minItems: 6
+          maxItems: 6
+
+        interrupt-names:
+          minItems: 6
+          maxItems: 6
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,scif-r9a09g057
+    then:
+      properties:
+        clocks:
+          maxItems: 1
+
+        clock-names:
+          maxItems: 1
+
+        interrupts:
+          minItems: 9
+
+        interrupt-names:
+          minItems: 9
 
 unevaluatedProperties: false
 

Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml

@@ -13,6 +13,20 @@ allOf:
   - $ref: serial.yaml#
   - $ref: rs485.yaml#
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: starfive,jh7110-uart
+    then:
+      properties:
+        resets:
+          minItems: 2
+    else:
+      properties:
+        resets:
+          maxItems: 1
+
 properties:
   compatible:
     oneOf:
@@ -48,6 +62,7 @@ properties:
           - enum:
               - starfive,jh7100-hsuart
               - starfive,jh7100-uart
+              - starfive,jh7110-uart
           - const: snps,dw-apb-uart
       - const: snps,dw-apb-uart
 
@@ -82,7 +97,8 @@ properties:
     type: boolean
 
   resets:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   reg-shift: true
 

Documentation/devicetree/bindings/serial/via,vt8500-uart.yaml

@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/via,vt8500-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: VIA VT8500 and WonderMedia WM8xxx UART Controller
+
+maintainers:
+  - Alexey Charkov <[email protected]>
+
+allOf:
+  - $ref: serial.yaml
+
+properties:
+  compatible:
+    enum:
+      - via,vt8500-uart # up to WM8850/WM8950
+      - wm,wm8880-uart  # for WM8880 and later
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - interrupts
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    serial@d8200000 {
+        compatible = "via,vt8500-uart";
+        reg = <0xd8200000 0x1040>;
+        interrupts = <32>;
+        clocks = <&clkuart0>;
+    };