Merge tag 'linux-can-next-for-6.19-20251126' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2025-11-26

this is a pull request of 27 patches for net-next/main.

The first 17 patches are by Vincent Mailhol and Oliver Hartkopp and
add CAN XL support to the CAN netlink interface.

Geert Uytterhoeven and Biju Das provide 7 patches for the rcar_canfd
driver to add suspend/resume support.

The next 2 patches are by Markus Schneider-Pargmann and add them as
the m_can maintainer.

Conor Dooley's patch updates the mpfs-can DT bindungs.

linux-can-next-for-6.19-20251126

* tag 'linux-can-next-for-6.19-20251126' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next: (27 commits)
  dt-bindings: can: mpfs: document resets
  MAINTAINERS: Simplify m_can section
  MAINTAINERS: Add myself as m_can maintainer
  can: rcar_canfd: Add suspend/resume support
  can: rcar_canfd: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
  can: rcar_canfd: Invert CAN clock and close_candev() order
  can: rcar_canfd: Extract rcar_canfd_global_{,de}init()
  can: rcar_canfd: Use devm_clk_get_optional() for RAM clk
  can: rcar_canfd: Invert global vs. channel teardown
  can: rcar_canfd: Invert reset assert order
  can: dev: print bitrate error with two decimal digits
  can: raw: instantly reject unsupported CAN frames
  can: add dummy_can driver
  can: calc_bittiming: add can_calc_sample_point_pwm()
  can: calc_bittiming: add can_calc_sample_point_nrz()
  can: calc_bittiming: replace misleading "nominal" by "reference"
  can: netlink: add PWM netlink interface
  can: calc_bittiming: add PWM calculation
  can: bittiming: add PWM validation
  can: bittiming: add PWM parameters
  ...
====================

Link: https://patch.msgid.link/20251126120106.154635-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

1 files changed, 29 insertions, 13 deletions

diff --git a/drivers/net/can/dev/dev.c b/drivers/net/can/dev/dev.c
index 80e1ab18de87..091f30e94c61 100644
--- a/drivers/net/can/dev/dev.c
+++ b/drivers/net/can/dev/dev.c
@@ -92,29 +92,39 @@ const char *can_get_ctrlmode_str(u32 ctrlmode)
 {
 	switch (ctrlmode & ~(ctrlmode - 1)) {
 	case 0:
-		return "none";
+		return "(none)";
 	case CAN_CTRLMODE_LOOPBACK:
-		return "loopback";
+		return "LOOPBACK";
 	case CAN_CTRLMODE_LISTENONLY:
-		return "listen-only";
+		return "LISTEN-ONLY";
 	case CAN_CTRLMODE_3_SAMPLES:
-		return "triple-sampling";
+		return "TRIPLE-SAMPLING";
 	case CAN_CTRLMODE_ONE_SHOT:
-		return "one-shot";
+		return "ONE-SHOT";
 	case CAN_CTRLMODE_BERR_REPORTING:
-		return "berr-reporting";
+		return "BERR-REPORTING";
 	case CAN_CTRLMODE_FD:
-		return "fd";
+		return "FD";
 	case CAN_CTRLMODE_PRESUME_ACK:
-		return "presume-ack";
+		return "PRESUME-ACK";
 	case CAN_CTRLMODE_FD_NON_ISO:
-		return "fd-non-iso";
+		return "FD-NON-ISO";
 	case CAN_CTRLMODE_CC_LEN8_DLC:
-		return "cc-len8-dlc";
+		return "CC-LEN8-DLC";
 	case CAN_CTRLMODE_TDC_AUTO:
-		return "fd-tdc-auto";
+		return "TDC-AUTO";
 	case CAN_CTRLMODE_TDC_MANUAL:
-		return "fd-tdc-manual";
+		return "TDC-MANUAL";
+	case CAN_CTRLMODE_RESTRICTED:
+		return "RESTRICTED";
+	case CAN_CTRLMODE_XL:
+		return "XL";
+	case CAN_CTRLMODE_XL_TDC_AUTO:
+		return "XL-TDC-AUTO";
+	case CAN_CTRLMODE_XL_TDC_MANUAL:
+		return "XL-TDC-MANUAL";
+	case CAN_CTRLMODE_XL_TMS:
+		return "TMS";
 	default:
 		return "<unknown>";
 	}
@@ -348,7 +358,13 @@ void can_set_default_mtu(struct net_device *dev)
 {
 	struct can_priv *priv = netdev_priv(dev);
 
-	if (priv->ctrlmode & CAN_CTRLMODE_FD) {
+	if (priv->ctrlmode & CAN_CTRLMODE_XL) {
+		if (can_is_canxl_dev_mtu(dev->mtu))
+			return;
+		dev->mtu = CANXL_MTU;
+		dev->min_mtu = CANXL_MIN_MTU;
+		dev->max_mtu = CANXL_MAX_MTU;
+	} else if (priv->ctrlmode & CAN_CTRLMODE_FD) {
 		dev->mtu = CANFD_MTU;
 		dev->min_mtu = CANFD_MTU;
 		dev->max_mtu = CANFD_MTU;