RE: About bittiming calculation result

From: Tomoya MORINAGA
Date: Mon Feb 07 2011 - 20:09:56 EST


On Monday, February 07, 2011 9:01 PM, Wolfgang Grandegger wrote
>
> Well, only prop_seg+phase_seg=tseg1 is relevant and the
> pch_can driver sets the allowed minimum "tseg1_min1" currently to 1:
>
> static struct can_bittiming_const pch_can_bittiming_const = {
> .name = KBUILD_MODNAME,
> .tseg1_min = 1,
> .tseg1_max = 16,
> .tseg2_min = 1,
> .tseg2_max = 8,
> .sjw_max = 4,
> .brp_min = 1,
> .brp_max = 1024, /* 6bit + extended 4bit */
> .brp_inc = 1,
> };
>
> > seg1/seg2/sjw/prop_seg must be more than 1 ?
>
> Then "tseg1_min" should be set to *2*.

Though some drivers accepted by upstream have parameter "tseg1_min" as 1,
Sould we release the patch like below ?
- .tseg1_min = 1,
+ .tseg1_min = 2,

Thanks,
-----------------------------------------
Tomoya MORINAGA
OKI SEMICONDUCTOR CO., LTD.

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