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Biju <biju.das.au@gmail.com> says:
From: Biju Das <biju.das.jz@bp.renesas.com>
The calculation formula for nominal bit rate of classical CAN is same as
that of nominal bit rate of CANFD on the RZ/G3E SoC and R-Car Gen4
compared to other SoCs. Update the nominal bit rate constants.
Apart from this, for replacing function-like macros, introduced
rcar_canfd_compute_{nominal,data}_bit_rate_cfg().
v2->v3:
* Replaced "shared_bittiming"->"shared_can_regs" as it is same for RZ/G3E
and R-Car Gen4.
* Updated commit header and description for patch#1.
* Added Rb tag from Geert for patch #2,#3 and #4.
* Dropped _MASK suffix from RCANFD_CFG_* macros.
* Dropped _MASK suffix from RCANFD_NCFG_NBRP_MASK macro.
* Dropped _MASK suffix from the macro RCANFD_DCFG_DBRP_MASK.
* Followed the order as used in struct can_bittiming{_const} for easy
maintenance.
v1->v2:
* Dropped patch#2 as it is accepted.
* Moved patch#4 to patch#2.
* Updated commit header and description for patch#2.
* Kept RCANFD_CFG* macro definitions to give a meaning to the magic
number using GENMASK macro and used FIELD_PREP to extract value.
* Split patch#3 for computing nominal and data bit rate config separate.
* Updated rcar_canfd_compute_nominal_bit_rate_cfg() to handle
nominal bit rate configuration for both classical CAN and CANFD.
* Replaced RCANFD_NCFG_NBRP->RCANFD_NCFG_NBRP_MASK and used FIELD_PREP to
extract value.
* Replaced RCANFD_DCFG_DBRP->RCANFD_DCFG_DBRP_MASK and used FIELD_PREP to
extract value.
Link: https://patch.msgid.link/20250908120940.147196-1-biju.das.jz@bp.renesas.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.