Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 110 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/serial/renesas,scifa.yaml b/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
new file mode 100644
index 000000000..dbffb9534
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
@@ -0,0 +1,110 @@
+# 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#"
+
+title: Renesas Serial Communications Interface with FIFO A (SCIFA)
+
+maintainers:
+  - Geert Uytterhoeven <geert+renesas@glider.be>
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - renesas,scifa-r8a73a4      # R-Mobile APE6
+              - renesas,scifa-r8a7740      # R-Mobile A1
+              - renesas,scifa-sh73a0       # SH-Mobile AG5
+          - const: renesas,scifa           # generic SCIFA compatible UART
+
+      - items:
+          - enum:
+              - renesas,scifa-r8a7742      # RZ/G1H
+              - renesas,scifa-r8a7743      # RZ/G1M
+              - renesas,scifa-r8a7744      # RZ/G1N
+              - renesas,scifa-r8a7745      # RZ/G1E
+              - renesas,scifa-r8a7790      # R-Car H2
+              - renesas,scifa-r8a7791      # R-Car M2-W
+              - renesas,scifa-r8a7793      # R-Car M2-N
+              - renesas,scifa-r8a7794      # R-Car E2
+          - const: renesas,rcar-gen2-scifa # R-Car Gen2 and RZ/G1
+          - const: renesas,scifa           # generic SCIFA compatible UART
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    enum:
+      - fck # UART functional clock
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  dmas:
+    description:
+      Must contain a list of pairs of references to DMA specifiers, one for
+      transmission, and one for reception.
+
+  dma-names:
+    minItems: 2
+    maxItems: 4
+    items:
+      enum:
+        - tx
+        - rx
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - power-domains
+
+unevaluatedProperties: false
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - renesas,rcar-gen2-scifa
+then:
+  required:
+    - resets
+
+examples:
+  - |
+    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/r8a7790-sysc.h>
+    aliases {
+            serial0 = &scifa0;
+    };
+
+    scifa0: serial@e6c40000 {
+            compatible = "renesas,scifa-r8a7790", "renesas,rcar-gen2-scifa",
+                         "renesas,scifa";
+            reg = <0xe6c40000 64>;
+            interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&cpg CPG_MOD 204>;
+            clock-names = "fck";
+            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+            resets = <&cpg 204>;
+            dmas = <&dmac0 0x21>, <&dmac0 0x22>, <&dmac1 0x21>, <&dmac1 0x22>;
+            dma-names = "tx", "rx", "tx", "rx";
+    };