Merge tag 'soc_fsl-6.12-2' of https://github.com/chleroy/linux into soc/drivers

- A series from Hervé Codina that bring support for the newer version
of QMC (QUICC Multi-channel Controller) and TSA (Time Slots Assigner)
found on MPC 83xx micro-controllers.

- Misc changes for qbman freescale drivers for removing a redundant
warning and using iommu_paging_domain_alloc()

* tag 'soc_fsl-6.12-2' of https://github.com/chleroy/linux: (38 commits)
  soc: fsl: qbman: Remove redundant warnings
  soc: fsl: qbman: Use iommu_paging_domain_alloc()
  MAINTAINERS: Add QE files related to the Freescale QMC controller
  soc: fsl: cpm1: qmc: Handle QUICC Engine (QE) soft-qmc firmware
  soc: fsl: cpm1: qmc: Add support for QUICC Engine (QE) implementation
  soc: fsl: qe: Add missing PUSHSCHED command
  soc: fsl: qe: Add resource-managed muram allocators
  soc: fsl: cpm1: qmc: Introduce qmc_version
  soc: fsl: cpm1: qmc: Rename SCC_GSMRL_MODE_QMC
  soc: fsl: cpm1: qmc: Handle RPACK initialization
  soc: fsl: cpm1: qmc: Rename qmc_chan_command()
  soc: fsl: cpm1: qmc: Introduce qmc_{init,exit}_xcc() and their CPM1 version
  soc: fsl: cpm1: qmc: Introduce qmc_init_resource() and its CPM1 version
  soc: fsl: cpm1: qmc: Re-order probe() operations
  soc: fsl: cpm1: qmc: Introduce qmc_data structure
  dt-bindings: soc: fsl: cpm_qe: Add QUICC Engine (QE) QMC controller
  soc: fsl: cpm1: qmc: Add missing spinlock comment
  soc: fsl: cpm1: qmc: Fix 'transmiter' typo
  soc: fsl: cpm1: qmc: Remove unneeded parenthesis
  soc: fsl: cpm1: qmc: Fix blank line and spaces
  ...

Link: https://lore.kernel.org/r/326d9a7d-7674-4c28-aa40-dd2c190244dd@csgroup.eu
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 407 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-tsa.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-tsa.yaml
new file mode 100644
index 000000000000..3b50e0a003ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-tsa.yaml
@@ -0,0 +1,210 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,qe-tsa.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PowerQUICC QE Time-slot assigner (TSA) controller
+
+maintainers:
+  - Herve Codina <herve.codina@bootlin.com>
+
+description:
+  The TSA is the time-slot assigner that can be found on some PowerQUICC SoC.
+  Its purpose is to route some TDM time-slots to other internal serial
+  controllers.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - fsl,mpc8321-tsa
+      - const: fsl,qe-tsa
+
+  reg:
+    items:
+      - description: SI (Serial Interface) register base
+      - description: SI RAM base
+
+  reg-names:
+    items:
+      - const: si_regs
+      - const: si_ram
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+patternProperties:
+  '^tdm@[0-3]$':
+    description:
+      The TDM managed by this controller
+    type: object
+
+    additionalProperties: false
+
+    properties:
+      reg:
+        minimum: 0
+        maximum: 3
+        description:
+          The TDM number for this TDM, 0 for TDMa, 1 for TDMb, 2 for TDMc and 3
+          for TDMd.
+
+      fsl,common-rxtx-pins:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          The hardware can use four dedicated pins for Tx clock, Tx sync, Rx
+          clock and Rx sync or use only two pins, Tx/Rx clock and Tx/Rx sync.
+          Without the 'fsl,common-rxtx-pins' property, the four pins are used.
+          With the 'fsl,common-rxtx-pins' property, two pins are used.
+
+      clocks:
+        minItems: 2
+        items:
+          - description: Receive sync clock
+          - description: Receive data clock
+          - description: Transmit sync clock
+          - description: Transmit data clock
+
+      clock-names:
+        minItems: 2
+        items:
+          - const: rsync
+          - const: rclk
+          - const: tsync
+          - const: tclk
+
+      fsl,rx-frame-sync-delay-bits:
+        enum: [0, 1, 2, 3]
+        default: 0
+        description: |
+          Receive frame sync delay in number of bits.
+          Indicates the delay between the Rx sync and the first bit of the Rx
+          frame.
+
+      fsl,tx-frame-sync-delay-bits:
+        enum: [0, 1, 2, 3]
+        default: 0
+        description: |
+          Transmit frame sync delay in number of bits.
+          Indicates the delay between the Tx sync and the first bit of the Tx
+          frame.
+
+      fsl,clock-falling-edge:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          Data is sent on falling edge of the clock (and received on the rising
+          edge). If not present, data is sent on the rising edge (and received
+          on the falling edge).
+
+      fsl,fsync-rising-edge:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          Frame sync pulses are sampled with the rising edge of the channel
+          clock. If not present, pulses are sampled with the falling edge.
+
+      fsl,fsync-active-low:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          Frame sync signals are active on low logic level.
+          If not present, sync signals are active on high level.
+
+      fsl,double-speed-clock:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          The channel clock is twice the data rate.
+
+    patternProperties:
+      '^fsl,[rt]x-ts-routes$':
+        $ref: /schemas/types.yaml#/definitions/uint32-matrix
+        description: |
+          A list of tuple that indicates the Tx or Rx time-slots routes.
+        items:
+          items:
+            - description:
+                The number of time-slots
+              minimum: 1
+              maximum: 64
+            - description: |
+                The source (Tx) or destination (Rx) serial interface
+                (dt-bindings/soc/qe-fsl,tsa.h defines these values)
+                 - 0: No destination
+                 - 1: UCC1
+                 - 2: UCC2
+                 - 3: UCC3
+                 - 4: UCC4
+                 - 5: UCC5
+              enum: [0, 1, 2, 3, 4, 5]
+        minItems: 1
+        maxItems: 64
+
+    allOf:
+      # If fsl,common-rxtx-pins is present, only 2 clocks are needed.
+      # Else, the 4 clocks must be present.
+      - if:
+          required:
+            - fsl,common-rxtx-pins
+        then:
+          properties:
+            clocks:
+              maxItems: 2
+            clock-names:
+              maxItems: 2
+        else:
+          properties:
+            clocks:
+              minItems: 4
+            clock-names:
+              minItems: 4
+
+    required:
+      - reg
+      - clocks
+      - clock-names
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - '#address-cells'
+  - '#size-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/qe-fsl,tsa.h>
+
+    tsa@ae0 {
+        compatible = "fsl,mpc8321-tsa", "fsl,qe-tsa";
+        reg = <0xae0 0x10>,
+              <0xc00 0x200>;
+        reg-names = "si_regs", "si_ram";
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        tdm@0 {
+            /* TDMa */
+            reg = <0>;
+
+            clocks = <&clk_l1rsynca>, <&clk_l1rclka>;
+            clock-names = "rsync", "rclk";
+
+            fsl,common-rxtx-pins;
+            fsl,fsync-rising-edge;
+
+            fsl,tx-ts-routes = <2 0>,             /* TS 0..1 */
+                           <24 FSL_QE_TSA_UCC4>, /* TS 2..25 */
+                           <1 0>,                 /* TS 26 */
+                           <5 FSL_QE_TSA_UCC3>;  /* TS 27..31 */
+
+            fsl,rx-ts-routes = <2 0>,             /* TS 0..1 */
+                           <24 FSL_QE_TSA_UCC4>, /* 2..25 */
+                           <1 0>,                 /* TS 26 */
+                           <5 FSL_QE_TSA_UCC3>;  /* TS 27..31 */
+        };
+    };
diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml
new file mode 100644
index 000000000000..71ae64cb8a4f
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml
@@ -0,0 +1,197 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PowerQUICC QE QUICC Multichannel Controller (QMC)
+
+maintainers:
+  - Herve Codina <herve.codina@bootlin.com>
+
+description:
+  The QMC (QUICC Multichannel Controller) emulates up to 64 channels within one
+  serial controller using the same TDM physical interface routed from TSA.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - fsl,mpc8321-ucc-qmc
+      - const: fsl,qe-ucc-qmc
+
+  reg:
+    items:
+      - description: UCC (Unified communication controller) register base
+      - description: Dual port ram base
+
+  reg-names:
+    items:
+      - const: ucc_regs
+      - const: dpram
+
+  interrupts:
+    maxItems: 1
+    description: UCC interrupt line in the QE interrupt controller
+
+  fsl,tsa-serial:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to TSA node
+          - enum: [1, 2, 3, 4, 5]
+            description: |
+              TSA serial interface (dt-bindings/soc/qe-fsl,tsa.h defines these
+              values)
+               - 1: UCC1
+               - 2: UCC2
+               - 3: UCC3
+               - 4: UCC4
+               - 5: UCC5
+    description:
+      Should be a phandle/number pair. The phandle to TSA node and the TSA
+      serial interface to use.
+
+  fsl,soft-qmc:
+    $ref: /schemas/types.yaml#/definitions/string
+    description:
+      Soft QMC firmware name to load. If this property is omitted, no firmware
+      are used.
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+patternProperties:
+  '^channel@([0-9]|[1-5][0-9]|6[0-3])$':
+    description:
+      A channel managed by this controller
+    type: object
+    additionalProperties: false
+
+    properties:
+      compatible:
+        items:
+          - enum:
+              - fsl,mpc8321-ucc-qmc-hdlc
+          - const: fsl,qe-ucc-qmc-hdlc
+          - const: fsl,qmc-hdlc
+
+      reg:
+        minimum: 0
+        maximum: 63
+        description:
+          The channel number
+
+      fsl,operational-mode:
+        $ref: /schemas/types.yaml#/definitions/string
+        enum: [transparent, hdlc]
+        default: transparent
+        description: |
+          The channel operational mode
+            - hdlc: The channel handles HDLC frames
+            - transparent: The channel handles raw data without any processing
+
+      fsl,reverse-data:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          The bit order as seen on the channels is reversed,
+          transmitting/receiving the MSB of each octet first.
+          This flag is used only in 'transparent' mode.
+
+      fsl,tx-ts-mask:
+        $ref: /schemas/types.yaml#/definitions/uint64
+        description:
+          Channel assigned Tx time-slots within the Tx time-slots routed by the
+          TSA to this cell.
+
+      fsl,rx-ts-mask:
+        $ref: /schemas/types.yaml#/definitions/uint64
+        description:
+          Channel assigned Rx time-slots within the Rx time-slots routed by the
+          TSA to this cell.
+
+      fsl,framer:
+        $ref: /schemas/types.yaml#/definitions/phandle
+        description:
+          phandle to the framer node. The framer is in charge of an E1/T1 line
+          interface connected to the TDM bus. It can be used to get the E1/T1 line
+          status such as link up/down.
+
+    allOf:
+      - if:
+          properties:
+            compatible:
+              not:
+                contains:
+                  const: fsl,qmc-hdlc
+        then:
+          properties:
+            fsl,framer: false
+
+    required:
+      - reg
+      - fsl,tx-ts-mask
+      - fsl,rx-ts-mask
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - fsl,tsa-serial
+  - '#address-cells'
+  - '#size-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/qe-fsl,tsa.h>
+
+    qmc@a60 {
+        compatible = "fsl,mpc8321-ucc-qmc", "fsl,qe-ucc-qmc";
+        reg = <0x3200 0x200>,
+              <0x10000 0x1000>;
+        reg-names = "ucc_regs", "dpram";
+        interrupts = <35>;
+        interrupt-parent = <&qeic>;
+        fsl,soft-qmc = "fsl_qe_ucode_qmc_8321_11.bin";
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        fsl,tsa-serial = <&tsa FSL_QE_TSA_UCC4>;
+
+        channel@16 {
+            /* Ch16 : First 4 even TS from all routed from TSA */
+            reg = <16>;
+            fsl,operational-mode = "transparent";
+            fsl,reverse-data;
+            fsl,tx-ts-mask = <0x00000000 0x000000aa>;
+            fsl,rx-ts-mask = <0x00000000 0x000000aa>;
+        };
+
+        channel@17 {
+            /* Ch17 : First 4 odd TS from all routed from TSA */
+            reg = <17>;
+            fsl,operational-mode = "transparent";
+            fsl,reverse-data;
+            fsl,tx-ts-mask = <0x00000000 0x00000055>;
+            fsl,rx-ts-mask = <0x00000000 0x00000055>;
+        };
+
+        channel@19 {
+            /* Ch19 : 8 TS (TS 8..15) from all routed from TSA */
+            compatible = "fsl,mpc8321-ucc-qmc-hdlc",
+                         "fsl,qe-ucc-qmc-hdlc",
+                         "fsl,qmc-hdlc";
+            reg = <19>;
+            fsl,operational-mode = "hdlc";
+            fsl,tx-ts-mask = <0x00000000 0x0000ff00>;
+            fsl,rx-ts-mask = <0x00000000 0x0000ff00>;
+            fsl,framer = <&framer>;
+        };
+    };