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The CAN FD IP found on RZ/G2L SoC has some HW features different to that of R-Car. For example, it has multiple resets and multiple IRQs for global and channel interrupts. Also, it does not have ECC error flag registers and clk post divider present on R-Car. Similarly, R-Car V3U has 8 channels whereas other SoCs has only 2 channels. This patch adds the struct rcar_canfd_hw_info to take care of the HW feature differences and driver data present on both IPs. It also replaces the driver data chip type with struct rcar_canfd_hw_info by moving chip type to it. Whilst started using driver data instead of chip_id for detecting R-Car V3U SoCs. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/all/20221027082158.95895-2-biju.das.jz@bp.renesas.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>