Merge tag 'tty-6.3-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 set of serial and tty driver updates for 6.3-rc1.

  Once again, Jiri and Ilpo have done a number of core vt and tty/serial
  layer cleanups that were much needed and appreciated. Other than that,
  it's just a bunch of little tty/serial driver updates:

   - qcom-geni-serial driver updates

   - liteuart driver updates

   - hvcs driver cleanups

   - n_gsm updates and additions for new features

   - more 8250 device support added

   - fpga/dfl update and additions

   - imx serial driver updates

   - fsl_lpuart updates

   - other tiny fixes and updates for serial drivers

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

* tag 'tty-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (143 commits)
  tty: n_gsm: add keep alive support
  serial: imx: remove a redundant check
  dt-bindings: serial: snps-dw-apb-uart: add dma & dma-names properties
  soc: qcom: geni-se: Move qcom-geni-se.h to linux/soc/qcom/geni-se.h
  tty: n_gsm: add TIOCMIWAIT support
  tty: n_gsm: add RING/CD control support
  tty: n_gsm: mark unusable ioctl structure fields accordingly
  serial: imx: get rid of registers shadowing
  serial: imx: refine local variables in rxint()
  serial: imx: stop using USR2 in FIFO reading loop
  serial: imx: remove redundant USR2 read from FIFO reading loop
  serial: imx: do not break from FIFO reading loop prematurely
  serial: imx: do not sysrq broken chars
  serial: imx: work-around for hardware RX flood
  serial: imx: factor-out common code to imx_uart_soft_reset()
  serial: 8250_pci1xxxx: Add power management functions to quad-uart driver
  serial: 8250_pci1xxxx: Add RS485 support to quad-uart driver
  serial: 8250_pci1xxxx: Add driver for quad-uart support
  serial: 8250_pci: Add serial8250_pci_setup_port definition in 8250_pcilib.c
  tty: pcn_uart: fix memory leak with using debugfs_lookup()
  ...

Author: torvalds

Documentation/admin-guide/kernel-parameters.txt

@@ -1172,10 +1172,10 @@
 			specified, the serial port must already be setup and
 			configured.
 
-		uart[8250],io,<addr>[,options]
-		uart[8250],mmio,<addr>[,options]
-		uart[8250],mmio32,<addr>[,options]
-		uart[8250],mmio32be,<addr>[,options]
+		uart[8250],io,<addr>[,options[,uartclk]]
+		uart[8250],mmio,<addr>[,options[,uartclk]]
+		uart[8250],mmio32,<addr>[,options[,uartclk]]
+		uart[8250],mmio32be,<addr>[,options[,uartclk]]
 		uart[8250],0x<addr>[,options]
 			Start an early, polled-mode console on the 8250/16550
 			UART at the specified I/O port or MMIO address.
@@ -1184,7 +1184,9 @@
 			If none of [io|mmio|mmio32|mmio32be], <addr> is assumed
 			to be equivalent to 'mmio'. 'options' are specified
 			in the same format described for "console=ttyS<n>"; if
-			unspecified, the h/w is not initialized.
+			unspecified, the h/w is not initialized. 'uartclk' is
+			the uart clock frequency; if unspecified, it is set
+			to 'BASE_BAUD' * 16.
 
 		pl011,<addr>
 		pl011,mmio32,<addr>

Documentation/devicetree/bindings/serial/8250.yaml

@@ -62,7 +62,6 @@ properties:
       - const: mrvl,pxa-uart
       - const: nuvoton,wpcm450-uart
       - const: nuvoton,npcm750-uart
-      - const: nuvoton,npcm845-uart
       - const: nvidia,tegra20-uart
       - const: nxp,lpc3220-uart
       - items:
@@ -92,6 +91,10 @@ properties:
           - enum:
               - ns16550 # Deprecated, unless the FIFO really is broken
               - ns16550a
+      - items:
+          - enum:
+              - nuvoton,npcm845-uart
+          - const: nuvoton,npcm750-uart
       - items:
           - enum:
               - ralink,mt7620a-uart
@@ -200,12 +203,13 @@ properties:
     deprecated: true
 
   aspeed,lpc-io-reg:
-    $ref: '/schemas/types.yaml#/definitions/uint32'
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    maxItems: 1
     description: |
       The VUART LPC address.  Only applicable to aspeed,ast2500-vuart.
 
   aspeed,lpc-interrupts:
-    $ref: "/schemas/types.yaml#/definitions/uint32-array"
+    $ref: /schemas/types.yaml#/definitions/uint32-array
     minItems: 2
     maxItems: 2
     description: |

Documentation/devicetree/bindings/serial/8250_omap.yaml

@@ -70,11 +70,6 @@ properties:
   dsr-gpios: true
   rng-gpios: true
   dcd-gpios: true
-  rs485-rts-delay: true
-  rs485-rts-active-low: true
-  rs485-rx-during-tx: true
-  rs485-rts-active-high: true
-  linux,rs485-enabled-at-boot-time: true
   rts-gpio: true
   power-domains: true
   clock-frequency: true
@@ -109,12 +104,12 @@ else:
 
 examples:
   - |
-          serial@49042000 {
-            compatible = "ti,omap3-uart";
-            reg = <0x49042000 0x400>;
-            interrupts = <80>;
-            dmas = <&sdma 81 &sdma 82>;
-            dma-names = "tx", "rx";
-            ti,hwmods = "uart4";
-            clock-frequency = <48000000>;
-          };
+    serial@49042000 {
+        compatible = "ti,omap3-uart";
+        reg = <0x49042000 0x400>;
+        interrupts = <80>;
+        dmas = <&sdma 81 &sdma 82>;
+        dma-names = "tx", "rx";
+        ti,hwmods = "uart4";
+        clock-frequency = <48000000>;
+    };

Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml

@@ -19,6 +19,9 @@ description: |
   is active since power-on and does not need any clock gating and is usable
   as very early serial console.
 
+allOf:
+  - $ref: serial.yaml#
+
 properties:
   compatible:
     oneOf:
@@ -69,14 +72,14 @@ required:
   - clocks
   - clock-names
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |
     serial@84c0 {
-          compatible = "amlogic,meson-gx-uart";
-          reg = <0x84c0 0x14>;
-          interrupts = <26>;
-          clocks = <&xtal>, <&pclk>, <&xtal>;
-          clock-names = "xtal", "pclk", "baud";
+        compatible = "amlogic,meson-gx-uart";
+        reg = <0x84c0 0x14>;
+        interrupts = <26>;
+        clocks = <&xtal>, <&pclk>, <&xtal>;
+        clock-names = "xtal", "pclk", "baud";
     };

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

@@ -9,9 +9,6 @@ title: Cadence UART Controller
 maintainers:
   - Michal Simek <[email protected]>
 
-allOf:
-  - $ref: /schemas/serial.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -46,21 +43,35 @@ properties:
       port does not use this pin.
     type: boolean
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg
   - interrupts
   - clocks
   - clock-names
 
+allOf:
+  - $ref: serial.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: cdns,uart-r1p8
+    then:
+      properties:
+        power-domains: false
+
 unevaluatedProperties: false
 
 examples:
   - |
     uart0: serial@e0000000 {
-      compatible = "xlnx,xuartps", "cdns,uart-r1p8";
-      clocks = <&clkc 23>, <&clkc 40>;
-      clock-names = "uart_clk", "pclk";
-      reg = <0xE0000000 0x1000>;
-      interrupts = <0 27 4>;
+        compatible = "xlnx,xuartps", "cdns,uart-r1p8";
+        clocks = <&clkc 23>, <&clkc 40>;
+        clock-names = "uart_clk", "pclk";
+        reg = <0xe0000000 0x1000>;
+        interrupts = <0 27 4>;
     };

Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml

@@ -16,7 +16,7 @@ maintainers:
   - Chester Lin <[email protected]>
 
 allOf:
-  - $ref: "serial.yaml"
+  - $ref: serial.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml

@@ -10,8 +10,8 @@ maintainers:
   - Fabio Estevam <[email protected]>
 
 allOf:
-  - $ref: "serial.yaml"
-  - $ref: "rs485.yaml"
+  - $ref: serial.yaml#
+  - $ref: rs485.yaml#
 
 properties:
   compatible:
@@ -83,13 +83,6 @@ properties:
       are sensible for most use cases. If you need low latency processing on
       slow connections this needs to be configured appropriately.
 
-  uart-has-rtscts: true
-
-  rs485-rts-delay: true
-  rs485-rts-active-low: true
-  rs485-rx-during-tx: true
-  linux,rs485-enabled-at-boot-time: true
-
 required:
   - compatible
   - reg

Documentation/devicetree/bindings/serial/fsl-lpuart.yaml

@@ -10,7 +10,8 @@ maintainers:
   - Fugang Duan <[email protected]>
 
 allOf:
-  - $ref: "rs485.yaml"
+  - $ref: rs485.yaml#
+  - $ref: serial.yaml#
 
 properties:
   compatible:
@@ -64,9 +65,6 @@ properties:
       - const: rx
       - const: tx
 
-  rs485-rts-active-low: true
-  linux,rs485-enabled-at-boot-time: true
-
 required:
   - compatible
   - reg

Documentation/devicetree/bindings/serial/fsl-mxs-auart.yaml

@@ -10,7 +10,7 @@ maintainers:
   - Fabio Estevam <[email protected]>
 
 allOf:
-  - $ref: "serial.yaml"
+  - $ref: serial.yaml#
 
 properties:
   compatible:

Documentation/devicetree/bindings/serial/pl011.yaml

@@ -10,6 +10,7 @@ maintainers:
   - Rob Herring <[email protected]>
 
 allOf:
+  - $ref: /schemas/arm/primecell.yaml#
   - $ref: serial.yaml#
 
 # Need a custom select here or 'arm,primecell' will match on lots of nodes