Merge tag 'tty-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial driver updates from Greg KH:
 "Here is the small amount of tty and serial driver updates for 7.0-rc1.
  Nothing major in here at all, just some driver updates and minor
  tweaks and cleanups including:

   - sh-sci serial driver updates

   - 8250 driver updates

   - attempt to make the tty ports have their own workqueue, but was
     reverted after testing found it to have problems on some platforms.

     This will probably come back for 7.1 after it has been reworked and
     resubmitted

   - other tiny tty driver changes

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

* tag 'tty-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (49 commits)
  Revert "tty: tty_port: add workqueue to flip TTY buffer"
  tty: tty_port: add workqueue to flip TTY buffer
  serial: 8250_pci: Remove custom deprecated baud setting routine
  serial: 8250_omap: Remove custom deprecated baud setting routine
  dt-bindings: serial: renesas,scif: Document RZ/G3L SoC
  serial: 8250: omap: set out-of-band wakeup if wakeup pinctrl exists
  tty: hvc-iucv: Remove KMSG_COMPONENT macro
  dt-bindings: serial: google,goldfish-tty: Convert to DT schema
  dt-bindings: serial: sh-sci: Fold single-entry compatibles into enum
  serial: 8250: 8250_omap.c: Clear DMA RX running status only after DMA termination is done
  serial: 8250: 8250_omap.c: Add support for handling UART error conditions
  serial: SH_SCI: improve "DMA support" prompt
  serial: Kconfig: fix ordering of entries for menu display
  serial: 8250: fix ordering of entries for menu display
  serial: imx: change SERIAL_IMX_CONSOLE to bool
  8250_men_mcb: drop unneeded MODULE_ALIAS
  serial: men_z135_uart: drop unneeded MODULE_ALIAS
  dt-bindings: serial: renesas,rsci: Document RZ/V2H(P) and RZ/V2N SoCs
  serial: rsci: Convert to FIELD_MODIFY()
  dt-bindings: serial: 8250: add SpacemiT K3 UART compatible
  ...

Author: torvalds

Documentation/devicetree/bindings/goldfish/tty.txt

@@ -160,6 +160,7 @@ properties:
           - enum:
               - mrvl,mmp-uart
               - spacemit,k1-uart
+              - spacemit,k3-uart
           - const: intel,xscale-uart
       - items:
           - enum:

Documentation/devicetree/bindings/serial/8250.yaml

@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/google,goldfish-tty.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Google Goldfish TTY
+
+maintainers:
+  - Kuan-Wei Chiu <visitorckw@gmail.com>
+
+allOf:
+  - $ref: /schemas/serial/serial.yaml#
+
+description:
+  Android goldfish TTY device generated by Android emulator.
+
+properties:
+  compatible:
+    const: google,goldfish-tty
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    serial@1f004000 {
+        compatible = "google,goldfish-tty";
+        reg = <0x1f004000 0x1000>;
+        interrupts = <12>;
+    };

Documentation/devicetree/bindings/serial/google,goldfish-tty.yaml

@@ -10,46 +10,78 @@ maintainers:
   - Geert Uytterhoeven <geert+renesas@glider.be>
   - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
 
-allOf:
-  - $ref: serial.yaml#
-
 properties:
   compatible:
     oneOf:
+      - enum:
+          - renesas,r9a09g047-rsci # RZ/G3E
+          - renesas,r9a09g077-rsci # RZ/T2H
+
       - items:
-          - const: renesas,r9a09g087-rsci # RZ/N2H
-          - const: renesas,r9a09g077-rsci # RZ/T2H
+          - enum:
+              - renesas,r9a09g056-rsci # RZ/V2N
+              - renesas,r9a09g057-rsci # RZ/V2H(P)
+          - const: renesas,r9a09g047-rsci
 
       - items:
+          - const: renesas,r9a09g087-rsci # RZ/N2H
           - const: renesas,r9a09g077-rsci # RZ/T2H
 
   reg:
     maxItems: 1
 
   interrupts:
+    minItems: 4
     items:
       - description: Error interrupt
       - description: Receive buffer full interrupt
       - description: Transmit buffer empty interrupt
       - description: Transmit end interrupt
+      - description: Active edge detection interrupt
+      - description: Break field detection interrupt
 
   interrupt-names:
+    minItems: 4
     items:
       - const: eri
       - const: rxi
       - const: txi
       - const: tei
+      - const: aed
+      - const: bfd
 
   clocks:
     minItems: 2
-    maxItems: 3
+    maxItems: 6
 
   clock-names:
-    minItems: 2
+    oneOf:
+      - items:
+          - const: operation
+          - const: bus
+          - const: sck # optional external clock input
+
+        minItems: 2
+
+      - items:
+          - const: pclk
+          - const: tclk
+          - const: tclk_div4
+          - const: tclk_div16
+          - const: tclk_div64
+          - const: sck # optional external clock input
+
+        minItems: 5
+
+  resets:
     items:
-      - const: operation
-      - const: bus
-      - const: sck # optional external clock input
+      - description: Input for resetting the APB clock
+      - description: Input for resetting TCLK
+
+  reset-names:
+    items:
+      - const: presetn
+      - const: tresetn
 
   power-domains:
     maxItems: 1
@@ -62,6 +94,57 @@ required:
   - clock-names
   - power-domains
 
+allOf:
+  - $ref: serial.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a09g077-rsci
+    then:
+      properties:
+        interrupts:
+          maxItems: 4
+
+        interrupt-names:
+          maxItems: 4
+
+        clocks:
+          minItems: 2
+          maxItems: 3
+
+        clock-names:
+          minItems: 2
+          maxItems: 3
+
+        resets: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a09g047-rsci
+    then:
+      properties:
+        interrupts:
+          minItems: 6
+
+        interrupt-names:
+          minItems: 6
+
+        clocks:
+          minItems: 5
+          maxItems: 6
+
+        clock-names:
+          minItems: 5
+          maxItems: 6
+
+      required:
+        - resets
+        - reset-names
+
 unevaluatedProperties: false
 
 examples:

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

@@ -12,15 +12,16 @@ maintainers:
 properties:
   compatible:
     oneOf:
+      - enum:
+          - renesas,scif-r7s9210          # RZ/A2
+          - renesas,scif-r9a07g044        # RZ/G2{L,LC}
+          - renesas,scif-r9a09g057        # RZ/V2H(P)
+
       - items:
           - enum:
               - renesas,scif-r7s72100     # RZ/A1H
           - const: renesas,scif           # generic SCIF compatible UART
 
-      - items:
-          - enum:
-              - renesas,scif-r7s9210      # RZ/A2
-
       - items:
           - enum:
               - renesas,scif-r8a7778      # R-Car M1
@@ -76,19 +77,14 @@ properties:
           - const: renesas,rcar-gen5-scif # R-Car Gen5
           - const: renesas,scif           # generic SCIF compatible UART
 
-      - items:
-          - enum:
-              - renesas,scif-r9a07g044      # RZ/G2{L,LC}
-
       - items:
           - enum:
               - renesas,scif-r9a07g043      # RZ/G2UL and RZ/Five
               - renesas,scif-r9a07g054      # RZ/V2L
               - renesas,scif-r9a08g045      # RZ/G3S
+              - renesas,scif-r9a08g046      # RZ/G3L
           - const: renesas,scif-r9a07g044   # RZ/G2{L,LC} fallback
 
-      - const: renesas,scif-r9a09g057       # RZ/V2H(P)
-
       - items:
           - enum:
               - renesas,scif-r9a09g047      # RZ/G3E

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

@@ -89,31 +89,7 @@ With the baud base set to 15625000 and the unsigned 16-bit UART_DIV_MAX
 limitation imposed by ``serial8250_get_baud_rate`` standard baud rates
 below 300bps become unavailable in the regular way, e.g. the rate of
 200bps requires the baud base to be divided by 78125 and that is beyond
-the unsigned 16-bit range.  The historic spd_cust feature can still be
-used by encoding the values for, the prescaler, the oversampling rate
-and the clock divisor (DLM/DLL) as follows to obtain such rates if so
-required:
-
-::
-
-  31 29 28             20 19   16 15                            0
- +-----+-----------------+-------+-------------------------------+
- |0 0 0|    CPR2:CPR     |  TCR  |            DLM:DLL            |
- +-----+-----------------+-------+-------------------------------+
-
-Use a value such encoded for the ``custom_divisor`` field along with the
-ASYNC_SPD_CUST flag set in the ``flags`` field in ``struct serial_struct``
-passed with the TIOCSSERIAL ioctl(2), such as with the setserial(8)
-utility and its ``divisor`` and ``spd_cust`` parameters, and then select
-the baud rate of 38400bps.  Note that the value of 0 in TCR sets the
-oversampling rate to 16 and prescaler values below 1 in CPR2/CPR are
-clamped by the driver to 1.
-
-For example the value of 0x1f4004e2 will set CPR2/CPR, TCR and DLM/DLL
-respectively to 0x1f4, 0x0 and 0x04e2, choosing the prescaler value,
-the oversampling rate and the clock divisor of 62.500, 16 and 1250
-respectively.  These parameters will set the baud rate for the serial
-port to 62500000 / 62.500 / 1250 / 16 = 50bps.
+the unsigned 16-bit range.
 
 Maciej W. Rozycki  <macro@orcam.me.uk>
 

Documentation/misc-devices/oxsemi-tornado.rst

@@ -677,13 +677,6 @@ static const struct hci_uart_proto aml_hci_proto = {
 	.dequeue	= aml_dequeue,
 };
 
-static void aml_device_driver_shutdown(struct device *dev)
-{
-	struct aml_serdev *amldev = dev_get_drvdata(dev);
-
-	aml_power_off(amldev);
-}
-
 static int aml_serdev_probe(struct serdev_device *serdev)
 {
 	struct aml_serdev *amldev;
@@ -714,6 +707,13 @@ static void aml_serdev_remove(struct serdev_device *serdev)
 	hci_uart_unregister_device(&amldev->serdev_hu);
 }
 
+static void aml_serdev_shutdown(struct serdev_device *serdev)
+{
+	struct aml_serdev *amldev = serdev_device_get_drvdata(serdev);
+
+	aml_power_off(amldev);
+}
+
 static const struct aml_device_data data_w155s2 = {
 	.iccm_offset = 256 * 1024,
 };
@@ -732,10 +732,10 @@ MODULE_DEVICE_TABLE(of, aml_bluetooth_of_match);
 static struct serdev_device_driver aml_serdev_driver = {
 	.probe = aml_serdev_probe,
 	.remove = aml_serdev_remove,
+	.shutdown = aml_serdev_shutdown,
 	.driver = {
 		.name = "hci_uart_aml",
 		.of_match_table = aml_bluetooth_of_match,
-		.shutdown = aml_device_driver_shutdown,
 	},
 };
 

drivers/bluetooth/hci_aml.c

@@ -2570,11 +2570,10 @@ static void qca_serdev_remove(struct serdev_device *serdev)
 	hci_uart_unregister_device(&qcadev->serdev_hu);
 }
 
-static void qca_serdev_shutdown(struct device *dev)
+static void qca_serdev_shutdown(struct serdev_device *serdev)
 {
 	int ret;
 	int timeout = msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS);
-	struct serdev_device *serdev = to_serdev_device(dev);
 	struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
 	struct hci_uart *hu = &qcadev->serdev_hu;
 	struct hci_dev *hdev = hu->hdev;
@@ -2796,11 +2795,11 @@ static void hciqca_coredump(struct device *dev)
 static struct serdev_device_driver qca_serdev_driver = {
 	.probe = qca_serdev_probe,
 	.remove = qca_serdev_remove,
+	.shutdown = qca_serdev_shutdown,
 	.driver = {
 		.name = "hci_uart_qca",
 		.of_match_table = of_match_ptr(qca_bluetooth_of_match),
 		.acpi_match_table = ACPI_PTR(qca_bluetooth_acpi_match),
-		.shutdown = qca_serdev_shutdown,
 		.pm = &qca_pm_ops,
 #ifdef CONFIG_DEV_COREDUMP
 		.coredump = hciqca_coredump,

drivers/bluetooth/hci_qca.c

@@ -380,9 +380,9 @@ static int ssam_serdev_setup(struct acpi_device *ssh, struct serdev_device *serd
 
 /* -- Power management. ----------------------------------------------------- */
 
-static void ssam_serial_hub_shutdown(struct device *dev)
+static void ssam_serial_hub_shutdown(struct serdev_device *serdev)
 {
-	struct ssam_controller *c = dev_get_drvdata(dev);
+	struct ssam_controller *c = dev_get_drvdata(&serdev->dev);
 	int status;
 
 	/*
@@ -834,12 +834,12 @@ MODULE_DEVICE_TABLE(of, ssam_serial_hub_of_match);
 static struct serdev_device_driver ssam_serial_hub = {
 	.probe = ssam_serial_hub_probe,
 	.remove = ssam_serial_hub_remove,
+	.shutdown = ssam_serial_hub_shutdown,
 	.driver = {
 		.name = "surface_serial_hub",
 		.acpi_match_table = ACPI_PTR(ssam_serial_hub_acpi_match),
 		.of_match_table = of_match_ptr(ssam_serial_hub_of_match),
 		.pm = &ssam_serial_hub_pm_ops,
-		.shutdown = ssam_serial_hub_shutdown,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };