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From: Tapio Reijonen <tapio.reijonen@vaisala.com>
To: Hugo Villeneuve <hugo@hugovil.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>,
	linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
	Hugo Villeneuve <hvilleneuve@dimonoff.com>,
	Tapio Reijonen <tapio.reijonen@kolumbus.fi>
Subject: Re: [PATCH v5 3/8] serial: max310x: convert RS485 delays from milliseconds to bit-times
Date: Fri, 2 Oct 2026 10:27:11 +0300	[thread overview]
Message-ID: <77d6748d-19bc-48a8-b956-c4bd2f77fa57@vaisala.com> (raw)
In-Reply-To: <20261001151125.1cf9daecf48174999aa676f0@hugovil.com>

Hi Hugo,

On Thu, 1 Oct 2026 15:11:25 -0400, Hugo Villeneuve wrote:
> > never shorter than requested, and capping at the 15 bit-times the
> > 4-bit field can hold. Centralize the HDPIXDELAY and MODE1.TRNSCVCTRL
> > programming in max310x_set_rts_ctl_params(), called from
> > set_termios() (the conversion depends on the baud rate), the
> > rs485-config worker and startup(), which each had their own copy.
>
> Could this centralization be done in a separate patch, without
> any functional changes intented, in order to facilitate the
> review of this patch?

Yes, good idea. In v6 this becomes two patches: one that only
introduces max310x_set_rts_ctl_params() and folds the three existing
copies into it, still writing the raw millisecond values (no
functional change), and this one, which then only adds the baud
caching and the millisecond-to-bit-time conversion inside the helper.

Your earlier comment on this patch is also folded in: break_ctl()
keeps the single max310x_rts_ctl(port, break_state) call at the end
instead of duplicating it in both branches.

Tapio


  reply	other threads:[~2026-10-02  7:27 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-29  9:37 [PATCH v5 0/8] serial: max310x: RS485 delay and RTS fixes, software-timed delays Tapio Reijonen
2026-09-29  9:37 ` [PATCH v5 1/8] serial: max310x: don't clobber the TX break bit in set_termios Tapio Reijonen
2026-09-29 13:40   ` Hugo Villeneuve
2026-10-02  7:25     ` Tapio Reijonen
2026-10-02 15:03       ` Hugo Villeneuve
2026-09-29  9:37 ` [PATCH v5 2/8] serial: max310x: assert the transceiver during a break Tapio Reijonen
2026-09-29  9:37 ` [PATCH v5 3/8] serial: max310x: convert RS485 delays from milliseconds to bit-times Tapio Reijonen
2026-09-29 13:54   ` Hugo Villeneuve
2026-10-01 19:11   ` Hugo Villeneuve
2026-10-02  7:27     ` Tapio Reijonen [this message]
2026-09-29  9:37 ` [PATCH v5 4/8] serial: max310x: wait for TX to drain before powering down in shutdown Tapio Reijonen
2026-10-01 20:00   ` Hugo Villeneuve
2026-10-02  7:28     ` Tapio Reijonen
2026-10-02 15:01       ` Hugo Villeneuve
2026-09-29  9:37 ` [PATCH v5 5/8] serial: max310x: support active-low RTS on the hardware path Tapio Reijonen
2026-09-29  9:38 ` [PATCH v5 6/8] serial: max310x: schedule tx_work directly from the IRQ handler Tapio Reijonen
2026-09-29  9:38 ` [PATCH v5 7/8] serial: max310x: drive RTS in software when hardware delays are too short Tapio Reijonen
2026-09-29  9:38 ` [PATCH v5 8/8] serial: max310x: don't transmit while an RS485 reconfigure is pending Tapio Reijonen
2026-10-01  8:35 ` [PATCH v5 0/8] serial: max310x: RS485 delay and RTS fixes, software-timed delays Greg Kroah-Hartman
2026-10-01  9:10   ` Tapio Reijonen

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