Merge tag 'linux-can-next-for-5.10-20201007' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
linux-can-next-for-5.10-20201007

The first 3 patches are by me and fix several warnings found
when compiling the  kernel with W=1.

Lukas Bulwahn's patch adjusts the MAINTAINERS file, to accommodate
the renaming of the mcp251xfd driver.

Vincent Mailhol contributes 3 patches for the CAN networking layer.
First error queue support is added the the CAN RAW protocol.
The second patch converts the get_can_dlc() and get_canfd_dlc()
in-Kernel-only macros from using __u8 to u8.
The third patch adds a helper function to calculate the length of
one bit in in multiple of time quanta.

Oliver Hartkopp's patch add support for the ISO 15765-2:2016
transport protocol to the CAN stack.

Three patches by Lad Prabhakar add documentation for various
new rcar controllers to the device tree bindings of the rcar_can
and rcan_canfd driver.

Michael Walle's patch adds various processors to the flexcan
driver binding documentation.

The next two patches are by me and target the flexcan driver aswell.
The remove the ack_grp and ack_bit from the fsl,stop-mode DT property
and the driver, as they are not used anymore. As these are the last
two arguments this change will not break existing device trees.

The last three patches are by Srinivas Neeli and target
the xilinx_can driver.
The first one increases the lower limit for the bit rate
prescaler to 2, the other two fix sparse and coverity findings.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

3 files changed, 15 insertions, 8 deletions

diff --git a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
index 94c0f8bf4deb..e10b6eb955e1 100644
--- a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
+++ b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
@@ -4,6 +4,12 @@ Required properties:
 
 - compatible : Should be "fsl,<processor>-flexcan"
 
+  where <processor> is imx8qm, imx6q, imx28, imx53, imx35, imx25, p1010,
+  vf610, ls1021ar2, lx2160ar1, ls1028ar1.
+
+  The ls1028ar1 must be followed by lx2160ar1, e.g.
+   - "fsl,ls1028ar1-flexcan", "fsl,lx2160ar1-flexcan"
+
   An implementation should also claim any of the following compatibles
   that it is fully backwards compatible with:
 
@@ -25,12 +31,10 @@ Optional properties:
               endian.
 
 - fsl,stop-mode: register bits of stop mode control, the format is
-		 <&gpr req_gpr req_bit ack_gpr ack_bit>.
+		 <&gpr req_gpr req_bit>.
 		 gpr is the phandle to general purpose register node.
 		 req_gpr is the gpr register offset of CAN stop request.
 		 req_bit is the bit offset of CAN stop request.
-		 ack_gpr is the gpr register offset of CAN stop acknowledge.
-		 ack_bit is the bit offset of CAN stop acknowledge.
 
 - fsl,clk-source: Select the clock source to the CAN Protocol Engine (PE).
 		  It's SoC Implementation dependent. Refer to RM for detailed
diff --git a/Documentation/devicetree/bindings/net/can/rcar_can.txt b/Documentation/devicetree/bindings/net/can/rcar_can.txt
index 85c6551b602a..6a5956347816 100644
--- a/Documentation/devicetree/bindings/net/can/rcar_can.txt
+++ b/Documentation/devicetree/bindings/net/can/rcar_can.txt
@@ -2,13 +2,15 @@ Renesas R-Car CAN controller Device Tree Bindings
 -------------------------------------------------
 
 Required properties:
-- compatible: "renesas,can-r8a7743" if CAN controller is a part of R8A7743 SoC.
+- compatible: "renesas,can-r8a7742" if CAN controller is a part of R8A7742 SoC.
+	      "renesas,can-r8a7743" if CAN controller is a part of R8A7743 SoC.
 	      "renesas,can-r8a7744" if CAN controller is a part of R8A7744 SoC.
 	      "renesas,can-r8a7745" if CAN controller is a part of R8A7745 SoC.
 	      "renesas,can-r8a77470" if CAN controller is a part of R8A77470 SoC.
 	      "renesas,can-r8a774a1" if CAN controller is a part of R8A774A1 SoC.
 	      "renesas,can-r8a774b1" if CAN controller is a part of R8A774B1 SoC.
 	      "renesas,can-r8a774c0" if CAN controller is a part of R8A774C0 SoC.
+	      "renesas,can-r8a774e1" if CAN controller is a part of R8A774E1 SoC.
 	      "renesas,can-r8a7778" if CAN controller is a part of R8A7778 SoC.
 	      "renesas,can-r8a7779" if CAN controller is a part of R8A7779 SoC.
 	      "renesas,can-r8a7790" if CAN controller is a part of R8A7790 SoC.
@@ -37,8 +39,8 @@ Required properties:
 - pinctrl-0: pin control group to be used for this controller.
 - pinctrl-names: must be "default".
 
-Required properties for R8A774A1, R8A774B1, R8A774C0, R8A7795, R8A7796,
-R8A77965, R8A77990, and R8A77995:
+Required properties for R8A774A1, R8A774B1, R8A774C0, R8A774E1, R8A7795,
+R8A7796, R8A77965, R8A77990, and R8A77995:
 For the denoted SoCs, "clkp2" can be CANFD clock. This is a div6 clock and can
 be used by both CAN and CAN FD controller at the same time. It needs to be
 scaled to maximum frequency if any of these controllers use it. This is done
diff --git a/Documentation/devicetree/bindings/net/can/rcar_canfd.txt b/Documentation/devicetree/bindings/net/can/rcar_canfd.txt
index 13a4e34c0c73..22cf2a889b2c 100644
--- a/Documentation/devicetree/bindings/net/can/rcar_canfd.txt
+++ b/Documentation/devicetree/bindings/net/can/rcar_canfd.txt
@@ -7,6 +7,7 @@ Required properties:
   - "renesas,r8a774a1-canfd" for R8A774A1 (RZ/G2M) compatible controller.
   - "renesas,r8a774b1-canfd" for R8A774B1 (RZ/G2N) compatible controller.
   - "renesas,r8a774c0-canfd" for R8A774C0 (RZ/G2E) compatible controller.
+  - "renesas,r8a774e1-canfd" for R8A774E1 (RZ/G2H) compatible controller.
   - "renesas,r8a7795-canfd" for R8A7795 (R-Car H3) compatible controller.
   - "renesas,r8a7796-canfd" for R8A7796 (R-Car M3-W) compatible controller.
   - "renesas,r8a77965-canfd" for R8A77965 (R-Car M3-N) compatible controller.
@@ -32,8 +33,8 @@ The name of the child nodes are "channel0" and "channel1" respectively. Each
 child node supports the "status" property only, which is used to
 enable/disable the respective channel.
 
-Required properties for R8A774A1, R8A774B1, R8A774C0, R8A7795, R8A7796,
-R8A77965, R8A77990, and R8A77995:
+Required properties for R8A774A1, R8A774B1, R8A774C0, R8A774E1, R8A7795,
+R8A7796, R8A77965, R8A77990, and R8A77995:
 In the denoted SoCs, canfd clock is a div6 clock and can be used by both CAN
 and CAN FD controller at the same time. It needs to be scaled to maximum
 frequency if any of these controllers use it. This is done using the below