Merge tag 'linux-can-next-for-6.16-20250522' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2025-05-22

this is a pull request of 22 patches for net-next/main.

The series by Biju Das contains 19 patches and adds RZ/G3E CANFD
support to the rcar_canfd driver.

The patch by Vincent Mailhol adds a struct data_bittiming_params to
group FD parameters as a preparation patch for CAN-XL support.

Felix Maurer's patch imports tst-filter from can-tests into the kernel
self tests and Vincent Mailhol adds support for physical CAN
interfaces.

linux-can-next-for-6.16-20250522

* tag 'linux-can-next-for-6.16-20250522' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next: (22 commits)
  selftests: can: test_raw_filter.sh: add support of physical interfaces
  selftests: can: Import tst-filter from can-tests
  can: dev: add struct data_bittiming_params to group FD parameters
  can: rcar_canfd: Add RZ/G3E support
  can: rcar_canfd: Enhance multi_channel_irqs handling
  can: rcar_canfd: Add external_clk variable to struct rcar_canfd_hw_info
  can: rcar_canfd: Add sh variable to struct rcar_canfd_hw_info
  can: rcar_canfd: Add struct rcanfd_regs variable to struct rcar_canfd_hw_info
  can: rcar_canfd: Add shared_can_regs variable to struct rcar_canfd_hw_info
  can: rcar_canfd: Add ch_interface_mode variable to struct rcar_canfd_hw_info
  can: rcar_canfd: Add {nom,data}_bittiming variables to struct rcar_canfd_hw_info
  can: rcar_canfd: Add max_cftml variable to struct rcar_canfd_hw_info
  can: rcar_canfd: Add max_aflpn variable to struct rcar_canfd_hw_info
  can: rcar_canfd: Add rnc_field_width variable to struct rcar_canfd_hw_info
  can: rcar_canfd: Update RCANFD_GAFLCFG macro
  can: rcar_canfd: Add rcar_canfd_setrnc()
  can: rcar_canfd: Drop the mask operation in RCANFD_GAFLCFG_SETRNC macro
  can: rcar_canfd: Update RCANFD_GERFL_ERR macro
  can: rcar_canfd: Drop RCANFD_GAFLCFG_GETRNC macro
  can: rcar_canfd: Use of_get_available_child_by_name()
  ...
====================

Link: https://patch.msgid.link/20250522084128.501049-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

1 files changed, 16 insertions, 12 deletions

diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 23492213ea35..492d23bec7be 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -38,6 +38,17 @@ enum can_termination_gpio {
 	CAN_TERMINATION_GPIO_MAX,
 };
 
+struct data_bittiming_params {
+	const struct can_bittiming_const *data_bittiming_const;
+	struct can_bittiming data_bittiming;
+	const struct can_tdc_const *tdc_const;
+	struct can_tdc tdc;
+	const u32 *data_bitrate_const;
+	unsigned int data_bitrate_const_cnt;
+	int (*do_set_data_bittiming)(struct net_device *dev);
+	int (*do_get_auto_tdcv)(const struct net_device *dev, u32 *tdcv);
+};
+
 /*
  * CAN common private data
  */
@@ -45,16 +56,11 @@ struct can_priv {
 	struct net_device *dev;
 	struct can_device_stats can_stats;
 
-	const struct can_bittiming_const *bittiming_const,
-		*data_bittiming_const;
-	struct can_bittiming bittiming, data_bittiming;
-	const struct can_tdc_const *tdc_const;
-	struct can_tdc tdc;
-
+	const struct can_bittiming_const *bittiming_const;
+	struct can_bittiming bittiming;
+	struct data_bittiming_params fd;
 	unsigned int bitrate_const_cnt;
 	const u32 *bitrate_const;
-	const u32 *data_bitrate_const;
-	unsigned int data_bitrate_const_cnt;
 	u32 bitrate_max;
 	struct can_clock clock;
 
@@ -77,14 +83,12 @@ struct can_priv {
 	struct delayed_work restart_work;
 
 	int (*do_set_bittiming)(struct net_device *dev);
-	int (*do_set_data_bittiming)(struct net_device *dev);
 	int (*do_set_mode)(struct net_device *dev, enum can_mode mode);
 	int (*do_set_termination)(struct net_device *dev, u16 term);
 	int (*do_get_state)(const struct net_device *dev,
 			    enum can_state *state);
 	int (*do_get_berr_counter)(const struct net_device *dev,
 				   struct can_berr_counter *bec);
-	int (*do_get_auto_tdcv)(const struct net_device *dev, u32 *tdcv);
 };
 
 static inline bool can_tdc_is_enabled(const struct can_priv *priv)
@@ -114,11 +118,11 @@ static inline bool can_tdc_is_enabled(const struct can_priv *priv)
  */
 static inline s32 can_get_relative_tdco(const struct can_priv *priv)
 {
-	const struct can_bittiming *dbt = &priv->data_bittiming;
+	const struct can_bittiming *dbt = &priv->fd.data_bittiming;
 	s32 sample_point_in_tc = (CAN_SYNC_SEG + dbt->prop_seg +
 				  dbt->phase_seg1) * dbt->brp;
 
-	return (s32)priv->tdc.tdco - sample_point_in_tc;
+	return (s32)priv->fd.tdc.tdco - sample_point_in_tc;
 }
 
 /* helper to define static CAN controller features at device creation time */