Merge tag 'tty-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial updates from Greg KH:
 "Here is the big set of tty/serial driver updates for 6.4-rc1.

  Nothing major, just lots of tiny, constant, forward development. This
  includes:

   - obligatory n_gsm updates and feature additions

   - 8250_em driver updates

   - sh-sci driver updates

   - dts cleanups and updates

   - general cleanups and improvements by Ilpo and Jiri

   - other small serial driver core fixes and driver updates

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

* tag 'tty-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (87 commits)
  n_gsm: Use array_index_nospec() with index that comes from userspace
  tty: vt: drop checks for undefined VT_SINGLE_DRIVER
  tty: vt: distribute EXPORT_SYMBOL()
  tty: vt: simplify some cases in tioclinux()
  tty: vt: reformat tioclinux()
  tty: serial: sh-sci: Fix end of transmission on SCI
  tty: serial: sh-sci: Add support for tx end interrupt handling
  tty: serial: sh-sci: Fix TE setting on SCI IP
  tty: serial: sh-sci: Add RZ/G2L SCIFA DMA rx support
  tty: serial: sh-sci: Add RZ/G2L SCIFA DMA tx support
  serial: max310x: fix IO data corruption in batched operations
  serial: core: Disable uart_start() on uart_remove_one_port()
  serial: 8250: Reinit port->pm on port specific driver unbind
  serial: 8250: Add missing wakeup event reporting
  tty: serial: fsl_lpuart: use UARTMODIR register bits for lpuart32 platform
  tty: serial: fsl_lpuart: adjust buffer length to the intended size
  serial: fix TIOCSRS485 locking
  serial: make SiFive serial drivers depend on ARCH_ symbols
  tty: synclink_gt: don't allocate and pass dummy flags
  tty: serial: simplify qcom_geni_serial_send_chunk_fifo()
  ...

14 files changed, 63 insertions, 24 deletions

diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
index 3cbdde85ed71..01ec45b3b406 100644
--- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
@@ -2,8 +2,8 @@
 # Copyright 2019 BayLibre, SAS
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/amlogic,meson-uart.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/amlogic,meson-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Amlogic Meson SoC UART Serial Interface
 
@@ -34,6 +34,11 @@ properties:
               - amlogic,meson-gx-uart
               - amlogic,meson-s4-uart
           - const: amlogic,meson-ao-uart
+      - description: Always-on power domain UART controller on G12A SoCs
+        items:
+          - const: amlogic,meson-g12a-uart
+          - const: amlogic,meson-gx-uart
+          - const: amlogic,meson-ao-uart
       - description: Everything-Else power domain UART controller
         enum:
           - amlogic,meson6-uart
@@ -41,6 +46,10 @@ properties:
           - amlogic,meson8b-uart
           - amlogic,meson-gx-uart
           - amlogic,meson-s4-uart
+      - description: Everything-Else power domain UART controller on G12A SoCs
+        items:
+          - const: amlogic,meson-g12a-uart
+          - const: amlogic,meson-gx-uart
 
   reg:
     maxItems: 1
diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml b/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml
index 4cbe76e1715b..40414247d61a 100644
--- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml
@@ -49,6 +49,24 @@ properties:
   reg:
     maxItems: 1
 
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: ipg
+      - const: per
+
+  dmas:
+    items:
+      - description: DMA controller phandle and request line for RX
+      - description: DMA controller phandle and request line for TX
+
+  dma-names:
+    items:
+      - const: rx
+      - const: tx
+
   interrupts:
     maxItems: 1
 
@@ -86,12 +104,16 @@ properties:
 required:
   - compatible
   - reg
+  - clocks
+  - clock-names
   - interrupts
 
 unevaluatedProperties: false
 
 examples:
   - |
+    #include <dt-bindings/clock/imx5-clock.h>
+
     aliases {
         serial0 = &uart1;
     };
@@ -100,6 +122,11 @@ examples:
         compatible = "fsl,imx51-uart", "fsl,imx21-uart";
         reg = <0x73fbc000 0x4000>;
         interrupts = <31>;
+        clocks = <&clks IMX5_CLK_UART1_IPG_GATE>,
+                 <&clks IMX5_CLK_UART1_PER_GATE>;
+        clock-names = "ipg", "per";
+        dmas = <&sdma 18 4 1>, <&sdma 19 4 2>;
+        dma-names = "rx", "tx";
         uart-has-rtscts;
         fsl,dte-mode;
     };
diff --git a/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml b/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml
index ab81722293d3..93062403276b 100644
--- a/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml
+++ b/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml
@@ -65,6 +65,9 @@ properties:
       - const: rx
       - const: tx
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg
diff --git a/Documentation/devicetree/bindings/serial/qcom,serial-geni-qcom.yaml b/Documentation/devicetree/bindings/serial/qcom,serial-geni-qcom.yaml
index 05a6999808d1..dd33794b3534 100644
--- a/Documentation/devicetree/bindings/serial/qcom,serial-geni-qcom.yaml
+++ b/Documentation/devicetree/bindings/serial/qcom,serial-geni-qcom.yaml
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/qcom,serial-geni-qcom.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/qcom,serial-geni-qcom.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Qualcomm Geni based QUP UART interface
 
diff --git a/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml b/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml
index 12d0fa34f9f9..3fc2601f1338 100644
--- a/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/renesas,em-uart.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/renesas,em-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Renesas EMMA Mobile UART Interface
 
diff --git a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
index afedb6edfc34..1c7f1276aed6 100644
--- a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/renesas,hscif.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/renesas,hscif.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Renesas High Speed Serial Communication Interface with FIFO (HSCIF)
 
diff --git a/Documentation/devicetree/bindings/serial/renesas,sci.yaml b/Documentation/devicetree/bindings/serial/renesas,sci.yaml
index dc445b327e0b..9f7305200c47 100644
--- a/Documentation/devicetree/bindings/serial/renesas,sci.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,sci.yaml
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/renesas,sci.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/renesas,sci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Renesas Serial Communication Interface
 
diff --git a/Documentation/devicetree/bindings/serial/renesas,scif.yaml b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
index 54e4f41be9b4..99030fc18c45 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/renesas,scif.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/renesas,scif.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Renesas Serial Communication Interface with FIFO (SCIF)
 
diff --git a/Documentation/devicetree/bindings/serial/renesas,scifa.yaml b/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
index 4c3b5e7270da..499507678cdf 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/renesas,scifa.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/renesas,scifa.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Renesas Serial Communications Interface with FIFO A (SCIFA)
 
diff --git a/Documentation/devicetree/bindings/serial/renesas,scifb.yaml b/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
index 2f7cbbb48960..810d8a991fdd 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/renesas,scifb.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/renesas,scifb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Renesas Serial Communications Interface with FIFO B (SCIFB)
 
diff --git a/Documentation/devicetree/bindings/serial/serial.yaml b/Documentation/devicetree/bindings/serial/serial.yaml
index c9231e501f1f..ea277560a596 100644
--- a/Documentation/devicetree/bindings/serial/serial.yaml
+++ b/Documentation/devicetree/bindings/serial/serial.yaml
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/serial.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/serial.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Serial Interface Generic
 
diff --git a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
index 2becdfab4f15..3862411c77b5 100644
--- a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
@@ -68,12 +68,12 @@ properties:
       - const: apb_pclk
 
   dmas:
-    minItems: 2
+    maxItems: 2
 
   dma-names:
     items:
-      - const: rx
       - const: tx
+      - const: rx
 
   snps,uart-16550-compatible:
     description: reflects the value of UART_16550_COMPATIBLE configuration
diff --git a/Documentation/devicetree/bindings/serial/sprd-uart.yaml b/Documentation/devicetree/bindings/serial/sprd-uart.yaml
index da0e2745b5fc..28ff77aa86c8 100644
--- a/Documentation/devicetree/bindings/serial/sprd-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/sprd-uart.yaml
@@ -2,8 +2,8 @@
 # Copyright 2019 Unisoc Inc.
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/sprd-uart.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/sprd-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Spreadtrum serial UART
 
diff --git a/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml b/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml
index ea1e637661c7..7d0a4bcb88e9 100644
--- a/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml
@@ -2,8 +2,8 @@
 # Copyright (C) Sunplus Co., Ltd. 2021
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/serial/sunplus,sp7021-uart.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/serial/sunplus,sp7021-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Sunplus SoC SP7021 UART Controller