linux-kernel - Re: [PATCH RFC 0/3] can: calc_bittiming: add sample point calculation for PWM encoding

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Message-ID: <eb78ad91-72ff-4094-a1cd-e63a0eb7b980@hartkopp.net>
Date: Tue, 4 Nov 2025 08:59:28 +0100
From: Oliver Hartkopp <socketcan@...tkopp.net>
To: Vincent Mailhol <mailhol@...nel.org>,
 Marc Kleine-Budde <mkl@...gutronix.de>
Cc: linux-can@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC 0/3] can: calc_bittiming: add sample point calculation
 for PWM encoding



On 02.11.25 23:01, Vincent Mailhol wrote:
> I wrote this series in response to Oliver's feedback in [1]. I am
> sending this as an RFC based on top of [2] for the moment so that we
> can discuss this separately. The plan is to merge this to the CAN XL
> branch once we reach a consensus on this part.
> 
> Patch #1 and #2 are refactors, patch #3 introduces a dedicated
> function for the PWM sample point calculation.
> 
> [1] https://lore.kernel.org/linux-can/743ba133-3735-48fd-994a-9727cfe8c114@hartkopp.net/
> 
> [2] [PATCH v2 00/10] can: netlink: add CAN XL
> Link: https://lore.kernel.org/linux-can/20251021-canxl-netlink-v2-0-8b8f58257ab6@kernel.org/
> 
> Signed-off-by: Vincent Mailhol <mailhol@...nel.org>

Tested-by: Oliver Hartkopp <socketcan@...tkopp.net>
Reviewed-by: Oliver Hartkopp <socketcan@...tkopp.net>

> ---
> Vincent Mailhol (3):
>        can: calc_bittiming: get rid of the incorrect "nominal" word
>        can: calc_bittiming: add can_calc_sample_point_nrz()
>        can: calc_bittiming: add can_calc_sample_point_pwm()
> 
>   drivers/net/can/dev/calc_bittiming.c | 68 ++++++++++++++++++++++++------------
>   1 file changed, 45 insertions(+), 23 deletions(-)
> ---
> base-commit: ffee675aceb9f44b0502a8bec912abb0c4f4af62
> change-id: 20251102-pwm_sample_point-8823cb3cd459
> prerequisite-change-id: 20241229-canxl-netlink-bc640af10673:v2
> prerequisite-patch-id: 6b3294205bd76b38257516c63b7001ab242c9b62
> prerequisite-patch-id: 56431d12edcc0f325cf5204bb6868742c462c0ed
> prerequisite-patch-id: 1547fd7ea8f1937f0491cfc0996b09890f850991
> prerequisite-patch-id: 1dae270b0454352e46b927f71d1b47ff2bf7a49e
> prerequisite-patch-id: e4d43de873dfdefc023a0b86e397b37ea2b9e9a3
> prerequisite-patch-id: 4f3db477ff411effe70075c59ae6eac04fc65600
> prerequisite-patch-id: 148dbfce9d3bb09537087ee93e60bb7819bdadee
> prerequisite-patch-id: 7996539e26d449e8db260425c7287b4dce8cdf35
> prerequisite-patch-id: 42215044df6a63fff07c7a7d771d7dc375cc8b0e
> prerequisite-patch-id: 640ebf8ac8a1d114dcb91e6c05b9414bd09416fc
> prerequisite-patch-id: 84ee5e4f937f8e4cd97833d601affea78fe55914
> 
> Best regards,