On 17.03.2025 12:36:01, Biju Das wrote: > R-Car Gen4 packs 2 RNC values in a 32-bit word, whereas R-Car Gen3 packs > up to 4 values in a 32-bit word. Handle this difference by adding > rnc_field_width variable to struct rcar_canfd_hw_info and update the macro > RCANFD_GAFLCFG. > > Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx> > --- > v5: > * New patch. > --- > drivers/net/can/rcar/rcar_canfd.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c > index 32d700962d69..924a116cd9ab 100644 > --- a/drivers/net/can/rcar/rcar_canfd.c > +++ b/drivers/net/can/rcar/rcar_canfd.c > @@ -85,6 +85,7 @@ > ((gpriv)->fdmode ? RCANFD_GERFL_CMPOF : 0))) > > /* AFL Rx rules registers */ > +#define RCANFD_RNC_PER_REG(gpriv) (32 / (gpriv)->info->rnc_field_width) Nitpick/micro optimization: Rename that to something like rnc_stride and put in value you need, i.e. 1 or 2. regards, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung Nürnberg | Phone: +49-5121-206917-129 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-9 |
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