Merge tag 'linux-can-next-for-5.19-20220419' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2022-04-19

this is a pull request of 17 patches for net-next/master.

The first 2 patches are by me and target the CAN driver
infrastructure. One patch renames a function in the rx_offload helper
the other one updates the CAN bitrate calculation to prefer small bit
rate pre-scalers over larger ones, which is encouraged by the CAN in
Automation.

Kris Bahnsen contributes a patch to fix the links to Technologic
Systems web resources in the sja1000 driver.

Christophe Leroy's patch prepares the mpc5xxx_can driver for upcoming
powerpc header cleanup.

Minghao Chi's patch converts the flexcan driver to use
pm_runtime_resume_and_get().

The next 2 patches target the Xilinx CAN driver. Lukas Bulwahn's patch
fixes an entry in the MAINTAINERS file. A patch by me marks the bit
timing constants as const.

Wolfram Sang's patch documents r8a77961 support on the
renesas,rcar-canfd bindings document.

The next 2 patches are by me and add support for the mcp251863 chip to
the mcp251xfd driver.

The last 7 patches are by Pavel Pisa, Martin Jerabek et al. and add
the ctucanfd driver for the CTU CAN FD IP Core.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 76 insertions, 9 deletions

diff --git a/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml b/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
new file mode 100644
index 000000000000..fb34d971dcb3
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/can/ctu,ctucanfd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CTU CAN FD Open-source IP Core Device Tree Bindings
+
+description: |
+  Open-source CAN FD IP core developed at the Czech Technical University in Prague
+
+  The core sources and documentation on project page
+    [1] sources : https://gitlab.fel.cvut.cz/canbus/ctucanfd_ip_core
+    [2] datasheet : https://canbus.pages.fel.cvut.cz/ctucanfd_ip_core/doc/Datasheet.pdf
+
+  Integration in Xilinx Zynq SoC based system together with
+  OpenCores SJA1000 compatible controllers
+    [3] project : https://gitlab.fel.cvut.cz/canbus/zynq/zynq-can-sja1000-top
+  Martin Jerabek dimploma thesis with integration and testing
+  framework description
+    [4] PDF : https://dspace.cvut.cz/bitstream/handle/10467/80366/F3-DP-2019-Jerabek-Martin-Jerabek-thesis-2019-canfd.pdf
+
+maintainers:
+  - Pavel Pisa <pisa@cmp.felk.cvut.cz>
+  - Ondrej Ille <ondrej.ille@gmail.com>
+  - Martin Jerabek <martin.jerabek01@gmail.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: ctu,ctucanfd-2
+          - const: ctu,ctucanfd
+      - const: ctu,ctucanfd
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    description: |
+      phandle of reference clock (100 MHz is appropriate
+      for FPGA implementation on Zynq-7000 system).
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    ctu_can_fd_0: can@43c30000 {
+      compatible = "ctu,ctucanfd";
+      interrupts = <0 30 4>;
+      clocks = <&clkc 15>;
+      reg = <0x43c30000 0x10000>;
+    };
diff --git a/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml b/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml
index b3826af6bd6e..7a73057707b4 100644
--- a/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml
+++ b/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml
@@ -5,8 +5,8 @@ $id: http://devicetree.org/schemas/net/can/microchip,mcp251xfd.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title:
-  Microchip MCP2517FD and MCP2518FD stand-alone CAN controller device tree
-  bindings
+  Microchip MCP2517FD, MCP2518FD and MCP251863 stand-alone CAN
+  controller device tree bindings
 
 maintainers:
   - Marc Kleine-Budde <mkl@pengutronix.de>
@@ -17,13 +17,14 @@ allOf:
 properties:
   compatible:
     oneOf:
-      - const: microchip,mcp2517fd
-        description: for MCP2517FD
-      - const: microchip,mcp2518fd
-        description: for MCP2518FD
-      - const: microchip,mcp251xfd
-        description: to autodetect chip variant
-
+      - enum:
+          - microchip,mcp2517fd
+          - microchip,mcp2518fd
+          - microchip,mcp251xfd
+      - items:
+          - enum:
+              - microchip,mcp251863
+          - const: microchip,mcp2518fd
   reg:
     maxItems: 1
 
diff --git a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
index f98c53dc1894..648740270731 100644
--- a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
+++ b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
@@ -23,6 +23,7 @@ properties:
               - renesas,r8a774e1-canfd     # RZ/G2H
               - renesas,r8a7795-canfd      # R-Car H3
               - renesas,r8a7796-canfd      # R-Car M3-W
+              - renesas,r8a77961-canfd     # R-Car M3-W+
               - renesas,r8a77965-canfd     # R-Car M3-N
               - renesas,r8a77970-canfd     # R-Car V3M
               - renesas,r8a77980-canfd     # R-Car V3H
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 01430973ecec..e12a75e10456 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -283,6 +283,8 @@ patternProperties:
     description: Shenzen Chuangsiqi Technology Co.,Ltd.
   "^ctera,.*":
     description: CTERA Networks Intl.
+  "^ctu,.*":
+    description: Czech Technical University in Prague
   "^cubietech,.*":
     description: Cubietech, Ltd.
   "^cui,.*":